Talk Overview. Concepts. Climatology. Monitoring. Applications
|
|
- Barnaby Green
- 5 years ago
- Views:
Transcription
1 Atmospheric Rivers
2 Talk Overview Concepts Climatology Monitoring Applications
3 Satellite View Where is the storm? Where is the impact? Atmospheric Rivers Plume or fire hose of tropical moisture Heavy precipitation and possibly flooding aka Pineapple Express Forecast CA Hawaii Pineapple Express Weather Channel Dec 17,
4 Satellite Observation of Water Vapor Atmospheric River North America
5 The Storm of 4-5 Jan 2008 Note that major impacts were focused >500 miles south of the Low pressure center in this storm. L 32 ft waves Atmospheric river GOES IR image of major West Coast storm Time = 0030 UTC 5 January 2008 Low pressure center is off WA coast 6-10 ft snow 7-13 in rain This differs significantly from hurricanes, but the impacts are enormous and spread over a large area Many major impacts are associated with the landfall of the atmospheric river element of the storm. Slide from M. Ralph
6 Number of Historical Storms with 3 Days of Precipitation of 12 inches or more West coast precipitation totals during atmospheric river events can rival those from hurricanes NOTE: Expanded color bar, but more sites still qualify CAT 3 is > 30 cm (12 in) in 3 days
7 Key Phenomena Affecting California Water Supply/Flooding: Storm Track changes Cyclogensis L Flooding & water supply MJO/Tropical Convection Easterly Wave ENSO The most extreme CA storm would result from a rare alignment of key processes
8 Topography Matters
9 Record flooding Modest flooding Complications: Rain shadowing When atmospheric rivers strike coastal mountains (Ralph et al. 2003) Air ascends coastal mountains, water vapor condenses, heavy rainfall occurs Details of the atmospheric river determine which watersheds flood
10 Atmospheric Rivers are not just flood producers. They are a key part of the water supply system
11 California s precipitation is uniquely variable Std Dev of Annual Precipitation Mean Annual Precipitation Higher values are higher variability Source: Dettinger et al (2011)
12 Storms and California Water Supply Just a few storms each year are the core of California s water supplies Dettinger et al, 2011
13 Decadal scale precipitation variability tied to Atmospheric River landfall variability Source: Dettinger and Cayan (2014)
14 Northern Sierra 8 Station Index Lower elevation mountains Annual Average: 50 inches Maximum Year (1983): 88.5 inches Minimum Year (1924): 17.1 inches Period of Record Present Average of: Mt. Shasta City Shasta Dam Mineral Brush Creek RS Quincy Sierraville RS Pacific House Blue Canyon
15 Atmospheric Rivers and Precipitation Accumulation 1/3 of WY total fell in 7 days
16 Monitoring
17 Hydro-Meterological Testbed HMT 17
18 Atmospheric River Observation at Bodega Bay March 2013 Building RASS (radio acoustic sounding system) Completed Observation Site RASS (radio acoustic sounding system) Antenna array to measure wind speed
19 Water vapor thresholds are important to precipitation processes Values in cm Values in cm 12/27/2013 1/29/2014
20 02/05/ :15 UTC
21
22
23
24 2 AR events in 5 days Rapid rises on rivers Minor flooding due to dry conditions Sierra Barrier Jet Present
25 Eel River at Fernbridge Cosumnes River at Michigan Bar
26 Applications
27 Developing Flood Metrics for ARs Flux, Duration, and Direction play important roles Antecedent watershed conditions important Spatial Extent of Storm Important Number and timing of storms important Work to be done on aligning AR thresholds with flood thresholds
28 Current Application Areas Forecast and Warning Planning and Climate Change Seasonal Forecasts
29 Acknowledgements UC Davis Hydrologic Research Laboratory Scripps Institution of Oceanography (CNAP/SWCSC) Center for Western Weather and Water Extremes NOAA Earth System Research Laboratory USGS
30 Questions?
El Niño, Climate Change and Water Supply Variability
El Niño, Climate Change and Water Supply Variability Talk Overview El Niño and California California Climate Variability and Change Water Management in the Face of Change California s topography affects
More informationClimate Change and Water Supply Research. Drought Response Workshop October 8, 2013
Climate Change and Water Supply Research Drought Response Workshop October 8, 2013 DWR Photo Oroville Reservoir, 2009 Talk Overview Expectations History Atmospheric Rivers and Water Supply Current Research
More informationDWR Investments in Improving Forecasts at all Time Scales
DWR Investments in Improving Forecasts at all Time Scales Dr. Michael Anderson, State Climatologist WEF Water Year 2019: Feast or Famine? December 5, 2018 Talk Overview Drought, Flood, and Atmospheric
More informationCW3E Atmospheric River Post Event Summary
CW3E Atmospheric River Post Event Summary CW3E Atmospheric River Post Event Summary Strong AR recently made landfall over northern California - The AR reached its strongest magnitude of ~ 750 kg m -1 s
More informationCW3E Atmospheric River Update
CW3E Atmospheric River Update Update on Late Season AR Forecast to Impact West Coast Later This Week - Little change from yesterday s forecast - Ensemble GFS members are still in good agreement of the
More informationOutlook provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 11 AM PT Monday 8 January 2018
Outlook provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 11 AM PT Monday 8 January 2018 CW3E Atmospheric River Update Outlook AR conditions currently bringing precipitation to U.S. West Coast - The
More informationCW3E Atmospheric River Update Outlook
CW3E Atmospheric River Update Outlook Two systems expected to produce precipitation over the U.S. West Coast in the next week - AR conditions (IVT >250 kg m -1 s -1 and IWV >20 mm) are expected over most
More informationNational Weather Service-Pennsylvania State University Weather Events
National Weather Service-Pennsylvania State University Weather Events Abstract: West Coast Heavy Precipitation Event of January 2012 by Richard H. Grumm National Weather Service State College PA 16803
More informationCW3E Atmosphere River Update - Summary
CW3E Atmosphere River Update - Summary Two Atmospheric Rivers (ARs) made landfall over the Pacific Northwest over the previous four days These events combined to produce >400 mm of precipitation in southern
More informationCW3E Atmospheric River Update and Outlook
Summary by C. Hecht and F.M. Ralph 3 PM PT Thurs 19 Jan. 2017 CW3E Atmospheric River Update and Outlook Update on 3 ARs Forecast to Impact the West Coast Over Next Several Days - AR 1 made landfall over
More informationAtmospheric Rivers: Western U.S. Rainmakers and Key to Forecast-Informed Reservoir Operations
Atmospheric Rivers: Western U.S. Rainmakers and Key to Forecast-Informed Reservoir Operations F. Martin Ralph UC San Diego/Scripps Institution of Oceanography A New Frontier in Water Operations: Atmospheric
More informationCooperative Institute for Research in Environmental Sciences (CIRES) CU-Boulder 2. National Oceanic and Atmospheric Administration
Moisture transport during the inland penetrating atmospheric river of early November 006 in the Pacific Northwest: A high-resolution model-based study Michael J. Mueller 1 and Kelly Mahoney 1 Cooperative
More informationCW3E Atmospheric River Summary
CW3E Atmospheric River Summary A strong AR made landfall over southern California this week - The atmospheric river made initial landfall over Big Sur around 1800 UTC Wednesday, 20 March 2018 - AR conditions
More informationCW3E Atmospheric River Update Outlook Strong AR forecast to impact California this weekend - A strong AR with IVT as high as 1000 kg m -1 s -1 is
CW3E Atmospheric River Update Outlook Strong AR forecast to impact California this weekend - A strong AR with IVT as high as 1000 kg m -1 s -1 is forecast make landfall over the West Coast this Weekend
More information2. Methods and data. 1 NWS Reno, NV report circulated in the LA Times story maximum wind was observed at 0900 AM 8 January 2017.
The California Extreme Precipitation Event of 8-10 January 2017 By Richard H. Grumm and Charles Ross National Weather Service State College, PA 16803 1. Introduction A strong Pacific jet and a surge of
More informationOutlook provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 3 PM PT Wednesday 3 January 2018
Outlook provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 3 PM PT Wednesday 3 January 2018 CW3E Atmospheric River Update Outlook Two systems expected to produce precipitation over the U.S. West Coast
More informationCW3E Atmospheric River Update Outlook
Outlook provided by B. Kawzenuk, J. Kalansky, and F.M. Ralph; 12 PM PT Wednesday 7 March 2018 CW3E Atmospheric River Update Outlook Weak Atmospheric River expected to impact the U.S. West Coast this week
More informationCW3E Atmospheric River Update
CW3E Atmospheric River Update Update on AR Currently Impacting CA, OR, and WA Precipitation continues to fall over portions of Northern California, Washington, and Oregon 6 10 inches of precipitation has
More information1 What Is Climate? TAKE A LOOK 2. Explain Why do areas near the equator tend to have high temperatures?
CHAPTER 17 1 What Is Climate? SECTION Climate BEFORE YOU READ After you read this section, you should be able to answer these questions: What is climate? What factors affect climate? How do climates differ
More informationJessica Lundquist 1, Paul Neiman 3, Brooks Martner 2,3, Allen White 2,3, Dan Gottas 2,3, Marty Ralph 3
PRELIMINARY STUDY RESULTS Rain versus Snow in the Sierra Nevada, CA: Comparing free-air observations of melting level with surface measurements Jessica Lundquist 1, Paul Neiman 3, Brooks Martner 2,3, Allen
More informationExperimental Short-term Forecasting of Atmospheric Rivers
Experimental Short-term Forecasting of Atmospheric Rivers Mike DeFlorio 1, Duane Waliser 2,3, F. Martin Ralph 1, Luca Delle Monache 1, Bin Guan 2,3, Alexander Goodman 2, Aneesh Subramanian 1, Zhenhai Zhang
More informationFlooding in Western North Carolina: Some Spatial, Hydrologic, and Seasonal Characteristics CAUTION!! Outline. Basic Flood Facts.
Flooding in Western North Carolina: Some Spatial, Hydrologic, and Seasonal Characteristics J. Greg Dobson CAUTION!! National Environmental Modeling and Analysis Center RENCI at UNC-Asheville Engagement
More informationForecasting Challenges
Forecasting Challenges 2017-18 Alex Tardy- NWS San Diego Alexander.Tardy@noaa.gov CW3E meetings April 2018 Atmospheric Rivers Climate Forecast System by NOAA 100-h fuel moisture all-time low for South
More informationCalifornia OES Weather Threat Briefing
California OES Weather Threat Briefing Wednesday, January 16, 2019 9:00 AM PST Day 1: Strong winds, heavy mountain snow and heavy rain with isolated thunderstorms across much of the state through Thursday
More informationNational Weather Service-Pennsylvania State University Weather Events
National Weather Service-Pennsylvania State University Weather Events Heavy Rain 7-8 December 2011 by Richard H. Grumm National Weather Service State College PA 16803 Abstract:. A mid-level short-wave
More informationHeavy Rainfall Event of June 2013
Heavy Rainfall Event of 10-11 June 2013 By Richard H. Grumm National Weather Service State College, PA 1. Overview A 500 hpa short-wave moved over the eastern United States (Fig. 1) brought a surge of
More informationBenjamin J. Moore. Education. Professional experience
Benjamin J. Moore Department of Atmospheric and Environmental Sciences University at Albany, State University of New York 1400 Washington Avenue Albany, New York, 12222 phone: +1 507 398 7427 email: bjmoore@albany.edu
More informationExperimental Research in Subseasonal Forecasting of Atmospheric Rivers
Experimental Research in Subseasonal Forecasting of Atmospheric Rivers Mike DeFlorio 1, Duane Waliser 2,3, F. Martin Ralph 1, Luca Delle Monache 1, Bin Guan 2,3, Alexander Goodman 2, Aneesh Subramanian
More informationInternational Snow Science Workshop
FLOOD FIGHT: THE PINEAPPLE EXPRESS AND FLOODING IN WESTERN WASHINGTON Larry Schick * U.S. Army Corps of Engineers, Seattle, Washington ABSTRACT: Major flood risk, in Western Washington, typically begins
More informationLAB J - WORLD CLIMATE ZONES
Introduction LAB J - WORLD CLIMATE ZONES The objective of this lab is to familiarize the student with the various climates around the world and the climate controls that influence these climates. Students
More informationAtmospheric Moisture, Precipitation, and Weather Systems
Atmospheric Moisture, Precipitation, and Weather Systems 6 Chapter Overview The atmosphere is a complex system, sometimes described as chaotic in nature. In this chapter we examine one of the principal
More informationHydrologic Research Laboratory Department of Civil and Environmental Engineering University of California, Davis
Physically-Based Estimation of Maximum Precipitation: Preliminary Results on Application to American River Basin for the December,1996-January,1997 Flood Event Hydrologic Research Laboratory Department
More informationMinor Winter Flooding Event in northwestern Pennsylvania January 2017
1. Overview Minor Winter Flooding Event in northwestern Pennsylvania 12-13 January 2017 By Richard H. Grumm National Weather Service State College, PA A combination of snow melt, frozen ground, and areas
More informationPresentation Overview. Southwestern Climate: Past, present and future. Global Energy Balance. What is climate?
Southwestern Climate: Past, present and future Mike Crimmins Climate Science Extension Specialist Dept. of Soil, Water, & Env. Science & Arizona Cooperative Extension The University of Arizona Presentation
More informationDEPARTMENT OF EARTH & CLIMATE SCIENCES Name SAN FRANCISCO STATE UNIVERSITY Nov 29, ERTH 360 Test #2 200 pts
DEPARTMENT OF EARTH & CLIMATE SCIENCES Name SAN FRANCISCO STATE UNIVERSITY Nov 29, 2018 ERTH 360 Test #2 200 pts Each question is worth 4 points. Indicate your BEST CHOICE for each question on the Scantron
More informationFlood Risk Assessment
Flood Risk Assessment February 14, 2008 Larry Schick Army Corps of Engineers Seattle District Meteorologist General Assessment As promised, La Nina caused an active winter with above to much above normal
More informationProjected Impacts of Climate Change in Southern California and the Western U.S.
Projected Impacts of Climate Change in Southern California and the Western U.S. Sam Iacobellis and Dan Cayan Scripps Institution of Oceanography University of California, San Diego Sponsors: NOAA RISA
More informationNRC Workshop - Probabilistic Flood Hazard Assessment Jan 2013
Regional Precipitation-Frequency Analysis And Extreme Storms Including PMP Current State of Understanding/Practice Mel Schaefer Ph.D. P.E. MGS Engineering Consultants, Inc. Olympia, WA NRC Workshop - Probabilistic
More informationClimate and the Atmosphere
Climate and Biomes Climate Objectives: Understand how weather is affected by: 1. Variations in the amount of incoming solar radiation 2. The earth s annual path around the sun 3. The earth s daily rotation
More informationCW3E Atmospheric River Outlook
CW3E Atmospheric River Outlook For California DWR s AR Program Multiple ARs Forecast to impact the USWC in the coming Week - A shift into an active flow pattern may result in the landfall of successive
More information3) What is the difference between latitude and longitude and what is their affect on local and world weather and climate?
www.discoveryeducation.com 1) Describe the difference between climate and weather citing an example of each. Describe how water (ocean, lake, river) has a local effect on weather and climate and provide
More informationINVISIBLE WATER COSTS
Every Drop Every Counts... Drop Counts... INVISIBLE WATER COSTS Corn - 108.1 gallons per pound How much water it takes to produce... Apple - 18.5 gallons to grow Beef - 1,581 gallons per pound Oats - 122.7
More informationAssessing the Climate-Scale Variability and Seasonal Predictability of Atmospheric Rivers Affecting the West Coast of North America
Assessing the Climate-Scale Variability and Seasonal Predictability of Atmospheric Rivers Affecting the West Coast of North America Alexander Gershunov, Tamara Shulgina, Marty Ralph, David Lavers CW3E
More informationDavid W. Reynolds * National Weather Service WFO San Francisco Bay Area Monterey, CA
3.2 THE MADDEN JULIAN OSCILLATION: ITS POTENTIAL FOR WEEK TWO FLOOD OUTLOOKS AND RESERVOIR MANAGEMENT DECISIONS IN CALIFORNIA David W. Reynolds * National Weather Service WFO San Francisco Bay Area Monterey,
More informationCW3E Atmospheric River Update
CW3E Atmospheric River Update Update on ARs Currently Impacting and Forecast to Impact West Coast Precipitation continues to fall over a majority of California The Transverse Mountains (north of Santa
More informationMaximization of Historical Severe Precipitation Events over American, Yuba and Feather River Basins
Maximization of Historical Severe Precipitation Events over merican, Yuba and Feather River Basins M. L. Kavvas 1, K. Ishida 1, S. Jang 1, N. Ohara 2, Z.Q.Chen 3, and M. nderson 3 1 University Of California,
More informationImpacts of the April 2013 Mean trough over central North America
Impacts of the April 2013 Mean trough over central North America By Richard H. Grumm National Weather Service State College, PA Abstract: The mean 500 hpa flow over North America featured a trough over
More informationWater Year 2019 Wet or Dry?? Improving Sub-seasonal to Seasonal Precipitation Forecasting Jeanine Jones, Department of Water Resources
Water Year 2019 Wet or Dry?? Improving Sub-seasonal to Seasonal Precipitation Forecasting Jeanine Jones, Department of Water Resources Sub-Seasonal to Seasonal (S2S) Precipitation Forecasting Operational
More informationDEPARTMENT OF GEOSCIENCES SAN FRANCISCO STATE UNIVERSITY. Metr Fall 2012 Test #1 200 pts. Part I. Surface Chart Interpretation.
DEPARTMENT OF GEOSCIENCES SAN FRANCISCO STATE UNIVERSITY NAME Metr 356.01 Fall 2012 Test #1 200 pts Part I. Surface Chart Interpretation. Figure 1. Surface Chart for 1500Z 7 September 2007 1 1. Pressure
More informationCW3E Atmospheric River Outlook
CW3E Atmospheric River Outlook Update on Atmospheric River Forecast to Impact California Next Week - The terminus of the atmospheric river plume is approaching coastal CA and precipitation will begin today
More informationClimatic Change Implications for Hydrologic Systems in the Sierra Nevada
Climatic Change Implications for Hydrologic Systems in the Sierra Nevada Part Two: The HSPF Model: Basis For Watershed Yield Calculator Part two presents an an overview of why the hydrologic yield calculator
More informationWinter Climate Forecast
Winter 2018-2019 Climate Forecast 26 th Winter Weather Meeting, OMSI and Oregon AMS, Portland Kyle Dittmer Hydrologist-Meteorologist Columbia River Inter-Tribal Fish Commission Portland, Oregon Professor
More informationThe Climate of Oregon Climate Zone 4 Northern Cascades
/05 E55 Unbound issue No. 9/ is Does not circulate Special Report 916 May 1993 The Climate of Oregon Climate Zone 4 Property of OREGON STATE UNIVERSITY Library Serials Corvallis, OR 97331-4503 Agricultural
More informationWinter Climate Forecast
Winter 2017-2018 Climate Forecast 25 th Winter Weather Meeting, OMSI and Oregon AMS, Portland Kyle Dittmer Hydrologist-Meteorologist Columbia River Inter-Tribal Fish Commission Portland, Oregon Professor
More information2011 Year in Review TORNADOES
2011 Year in Review The year 2011 had weather events that will be remembered for a long time. Two significant tornado outbreaks in April, widespread damage and power outages from Hurricane Irene in August
More informationAtmospheric Rivers, Floods and the Water Resources of California
Water 2011, 3, 445-478; doi:10.3390/w3020445 OPEN ACCESS water ISSN 2073-4441 www.mdpi.com/journal/water Article Atmospheric Rivers, Floods and the Water Resources of California Michael D. Dettinger 1,
More informationLecture 5: Precipitation
Lecture 5: Precipitation Key Questions 1. What physical concepts control the formation of precipitation (air pressure, expanding gases and cooling, and vapor pressure)? 2. What are some air mass lifting
More informationLake Mendocino Forecast Informed Reservoir Operations
Lake Mendocino Forecast Informed Reservoir Operations F. Martin Ralph Center for Western Weather and Water Extremes UC San Diego/Scripps Institution of Oceanography California Extreme Precipitation Symposium
More informationA Synopsis of the December 1-4, 2007 Storm Events
A Synopsis of the December 1-4, 27 Storm Events An aerial view of the flooded I-5 overpass looking south Flooding in Chehalis. (Associated Press ) Maryanne Reiter, Hydrologist Weyerhaeuser Co. The Wind
More information1 What Is Climate? TAKE A LOOK 2. Explain Why do areas near the equator tend to have high temperatures?
CHAPTER 17 1 What Is Climate? SECTION Climate BEFORE YOU READ After you read this section, you should be able to answer these questions: What is climate? What factors affect climate? How do climates differ
More informationWeather and Climate Summary and Forecast November 2017 Report
Weather and Climate Summary and Forecast November 2017 Report Gregory V. Jones Linfield College November 7, 2017 Summary: October was relatively cool and wet north, while warm and very dry south. Dry conditions
More informationA Synoptic Climatology of Heavy Precipitation Events in California
A Synoptic Climatology of Heavy Precipitation Events in California Alan Haynes Hydrometeorological Analysis and Support (HAS) Forecaster National Weather Service California-Nevada River Forecast Center
More informationObserved Climate Variability and Change: Evidence and Issues Related to Uncertainty
Observed Climate Variability and Change: Evidence and Issues Related to Uncertainty David R. Easterling National Climatic Data Center Asheville, North Carolina Overview Some examples of observed climate
More information1 What Is Climate? TAKE A LOOK 2. Explain Why do areas near the equator tend to have high temperatures?
CHAPTER 3 1 What Is Climate? SECTION Climate BEFORE YOU READ After you read this section, you should be able to answer these questions: What is climate? What factors affect climate? How do climates differ
More informationAnticipating Extreme Precipitation Events: Atmospheric Rivers and Scripps/CW3E Weather Modeling for the Bay Area
16 inches of rain in 1 day in Central California Anticipating Extreme Precipitation Events: Atmospheric Rivers and Scripps/CW3E Weather Modeling for the Bay Area F. Martin Ralph Center for Western Weather
More informationExtreme Rainfall in the Southeast U.S.
Extreme Rainfall in the Southeast U.S. David F. Zierden Florida State Climatologist Center for Ocean Atmospheric Prediction Studies The Florida State University March 7, 2016 Causes of Extreme Rainfall
More informationAgricultural Outlook Forum Presented: February 17, 2006 THE SCIENCE BEHIND THE ATLANTIC HURRICANES AND SEASONAL PREDICTIONS
Agricultural Outlook Forum Presented: February 17, 2006 THE SCIENCE BEHIND THE ATLANTIC HURRICANES AND SEASONAL PREDICTIONS Gerald Bell Meteorologist, National Centers for Environmental Prediction NOAA,
More informationGrade 9 Geography Chapter 11 - Climate Connections
Grade 9 Geography Chapter 11 - Climate Connections 1. Define: Weather. 2. In what way has weather affected your activities in the last two weeks? 3. Define: Climate. 4. Canada s climate is a function of
More informationMET Lecture 20 Mountain Snowstorms (CH16)
MET 4300 Lecture 20 Mountain Snowstorms (CH16) Learning Objectives Provide an overview of the importance and impacts of mountain snowstorms in the western US Describe how topography influence precipitation
More informationCW3E Atmospheric River Outlook
CW3E Atmospheric River Outlook For California DWR s AR Program Update on the ARs Currently Impacting and Forecast to Impact the U.S. West Coast - Precip. has begun in association with AR 1, where as much
More informationTrends in the Character of Hurricanes and their Impact on Heavy Rainfall across the Carolinas
Trends in the Character of Hurricanes and their Impact on Heavy Rainfall across the Carolinas Chip Konrad Carolina Integrated Science and Assessments (CISA) The Southeast Regional Climate Center Department
More informationCW3E Atmospheric River Outlook
CW3E Atmospheric River Outlook For California DWR s AR Program Update on the ARs forecast to Impact California this Week - Forecast confidence within the GEFS has continued to increase for the two ARs
More informationIntroduction to Climatology. GEOG/ENST 2331: Lecture 1
Introduction to Climatology GEOG/ENST 2331: Lecture 1 Us Graham Saunders graham.saunders@lakeheadu.ca Jason Freeburn (RC 2004) jtfreebu@lakeheadu.ca Graham Saunders Australian Weather Bureau Environment
More informationCH. 3: Climate and Vegetation
CH. 3: Climate and Vegetation GROUP WORK RUBRIC Score of 50 (5): Superior - 100% A 5 is superior work, and has completed all requirements of the assignments, it is in order and its presentation is almost
More informationMonthly Long Range Weather Commentary Issued: SEPTEMBER 19, 2016 Steven A. Root, CCM, Chief Analytics Officer, Sr. VP,
Monthly Long Range Weather Commentary Issued: SEPTEMBER 19, 2016 Steven A. Root, CCM, Chief Analytics Officer, Sr. VP, sroot@weatherbank.com SEPTEMBER 2016 Climate Highlights The Month in Review The contiguous
More informationNational Weather Service-Pennsylvania State University Weather Events
National Weather Service-Pennsylvania State University Weather Events Heavy rainfall of 23 November 2011 by Richard H. Grumm National Weather Service State College PA 16803 Abstract:. A fast moving mid-tropospheric
More informationWeather and Climate Summary and Forecast Summer 2017
Weather and Climate Summary and Forecast Summer 2017 Gregory V. Jones Southern Oregon University August 4, 2017 July largely held true to forecast, although it ended with the start of one of the most extreme
More informationAlluvial Fan Flooding Workshop. Barry Pierce National Weather Service, Las Vegas
Alluvial Fan Flooding Workshop Barry Pierce National Weather Service, Las Vegas Death Valley NP, August 15, 2004 Outline National Weather Service Alluvial Fan/Flash Flooding Weather Regimes Conducive For
More informationClimate Outlook through 2100 South Florida Ecological Services Office Vero Beach, FL September 9, 2014
Climate Outlook through 2100 South Florida Ecological Services Office Vero Beach, FL September 9, 2014 Short Term Drought Map: Short-term (
More informationSatellites, Weather and Climate Module??: Polar Vortex
Satellites, Weather and Climate Module??: Polar Vortex SWAC Jan 2014 AKA Circumpolar Vortex Science or Hype? Will there be one this year? Today s objectives Pre and Post exams What is the Polar Vortex
More informationWEEKEND WEATHER OUTLOOK BELIZE, CENTRAL AMERICA
WEEKEND WEATHER OUTLOOK BELIZE, CENTRAL AMERICA PERIOD: Friday, July 13 until Monday, July 16, 2012 DATE ISSUED: Friday, June 13, 2012, 9:00 am RFrutos SYNOPSIS: A weak pressure gradient over the NW Caribbean
More informationATMOSPHERIC MODELLING. GEOG/ENST 3331 Lecture 9 Ahrens: Chapter 13; A&B: Chapters 12 and 13
ATMOSPHERIC MODELLING GEOG/ENST 3331 Lecture 9 Ahrens: Chapter 13; A&B: Chapters 12 and 13 Agenda for February 3 Assignment 3: Due on Friday Lecture Outline Numerical modelling Long-range forecasts Oscillations
More informationCharles Jones ICESS University of California, Santa Barbara CA Outline
The Influence of Tropical Variations on Wintertime Precipitation in California: Pineapple express, Extreme rainfall Events and Long-range Statistical Forecasts Charles Jones ICESS University of California,
More informationCW3E Atmospheric River Outlook Update on the Multiple ARs forecast to Impact California this Week - Forecast confidence in the onset, duration, and
CW3E Atmospheric River Outlook Update on the Multiple ARs forecast to Impact California this Week - Forecast confidence in the onset, duration, and magnitude of AR conditions has increased since the last
More informationClimate Variability and Change, and Southern California Water San Gabriel Valley Water Forum, Pomona, CA, October 2, 2014
Climate Variability and Change, and Southern California Water San Gabriel Valley Water Forum, Pomona, CA, October 2, 2014 Dan Cayan (with Mike Dettinger, David Pierce, Suraj Polade, Mary Tyree, Alexander
More informationSENSITIVITY OF SPACE-BASED PRECIPITATION MEASUREMENTS
SENSITIVITY OF SPACE-BASED PRECIPITATION MEASUREMENTS JP7.2 TO CHANGES IN MESOSCALE FEATURES Joseph Hoch *, Gregory J. Tripoli, Mark Kulie University of Wisconsin, Madison, Wisconsin 1. INTRODUCTION The
More informationWhat Determines the Amount of Precipitation During Wet and Dry Years Over California?
NOAA Research Earth System Research Laboratory Physical Sciences Division What Determines the Amount of Precipitation During Wet and Dry Years Over California? Andy Hoell NOAA/Earth System Research Laboratory
More informationNational Weather Service-Pennsylvania State University Weather Events
National Weather Service-Pennsylvania State University Weather Events Abstract: Tropical Storm Debbie, standardized anomalies and heavy rainfall by Richard H. Grumm National Weather Service State College
More informationWeather & Climate of Virginia
Weather & Climate of Virginia Robert E. Davis Professor of Climatology Dept. of Environmental Sciences University of Virginia Email: red3u@virginia.edu Rivanna Master Naturalists March 14, 2017 Arctic
More informationSEPTEMBER 2013 REVIEW
Monthly Long Range Weather Commentary Issued: October 21, 2013 Steven A. Root, CCM, President/CEO sroot@weatherbank.com SEPTEMBER 2013 REVIEW Climate Highlights The Month in Review The average temperature
More informationCalifornia OES Atmospheric River Events Weather Threat Briefing
California OES Atmospheric River Events Weather Threat Briefing 23 February 2017 10:00 AM PST Day 1: Flooding continues along small streams and creeks and some main stem rivers. National Weather Service
More informationUPDATE OF REGIONAL WEATHER AND SMOKE HAZE (September 2017)
UPDATE OF REGIONAL WEATHER AND SMOKE HAZE (September 2017) 1. Review of Regional Weather Conditions in August 2017 1.1 Southwest Monsoon conditions continued to prevail in the region in August 2017. The
More informationSection 2 Rainfall and Climatic Data
Section 2 Rainfall and Climatic Data Introduction and General Program Description Monterey County agribusiness, residential water users, the tourist industry, and all other businesses depend on rainfall
More informationHaiti and Dominican Republic Flash Flood Initial Planning Meeting
Dr Rochelle Graham Climate Scientist Haiti and Dominican Republic Flash Flood Initial Planning Meeting September 7 th to 9 th, 2016 Hydrologic Research Center http://www.hrcwater.org Haiti and Dominican
More informationThe Field Research Facility, Duck, NC Warming Ocean Observations and Forecast of Effects
The Field Research Facility, Duck, NC Warming Ocean Observations and Forecast of Effects A potential consequence of a warming ocean is more frequent and more intense wind events (Hurricanes & Typhoons)
More informationWeather Studies Introduction to Atmospheric Science
Weather Studies Introduction to Atmospheric Science American Meteorological Society Chapter 1 Monitoring The Weather Credit: This presentation was prepared for AMS by Michael Leach, Professor of Geography
More informationNew Zealand Heavy Rainfall and Floods
New Zealand Heavy Rainfall and Floods 1. Introduction Three days of heavy rainfall associated with a deep upper-level low (Fig. 1) brought flooding to portions of New Zealand (Fig. 2). The flooding was
More informationOverview of a Changing Climate in Rhode Island
Overview of a Changing Climate in Rhode Island David Vallee, Hydrologist in Charge, National Weather Service Northeast River Forecast Center, NOAA Lenny Giuliano, Air Quality Specialist, Rhode Island Department
More informationCW3E Atmospheric River Outlook
CW3E Atmospheric River Outlook For California DWR s AR Program Potential for Atmospheric River Activity over California Next Week - Multiple systems are currently forecasted to potentially bring AR conditions
More informationSNOW CLIMATOLOGY OF THE EASTERN SIERRA NEVADA. Susan Burak, graduate student Hydrologic Sciences University of Nevada, Reno
SNOW CLIMATOLOGY OF THE EASTERN SIERRA NEVADA Susan Burak, graduate student Hydrologic Sciences University of Nevada, Reno David Walker, graduate student Department of Geography/154 University of Nevada
More information