BACKPACKING vs. WX MOUNTAIN WEATHER. READING WX s SIGNS PREDICTING WEATHER RESOURCES SUMMARY

Transcription

1 1

2 BACKPACKING vs. WX MOUNTAIN WEATHER READING WX s SIGNS PREDICTING WEATHER RESOURCES SUMMARY

3 3

4 I M TRAPPED

5 WEST SIDE EAST SIDE AIR GETS COLDER AS IT RISES

6 o ADD 4 DEGREES PER FEET OF ALTITUDE LOSS o SUBTRACT 4 DEGREES PER FEET OF ALTITUDE GAIN 6

7 DAY BLOWS UPHILL NIGHT BLOWS DOWNHILL

8 COLD AIR IS HEAVIER AND RUNS DOWNHILL

9 Some valleys are so COLD that the trees are stunted IT WILL BE WARMER INSIDE THE TREE LINE 9

10 Clear Skies Especially, if the stars are bright and are FURIOUSLY TWINKLING. 10

11 1. HEAT 2. FLASH FLOODS 3. WIND STORMS 4. LIGHTNING 5. BLIZZARDS 6. FIRE STORMS 11

12 12

13

14

15 DON T CAMP OR HIKE IN NARROW WASHES! RAIN SEVERAL MILES AWAY CAN PRODUCE FLOOD LEVELS PAST WATER LEVEL 15

16 AVOID SNAGS, DEAD OVERHEAD LIMBS, FOREST EDGES, and COULTER PINE CONES 16

17 Initial stages are mostly in-cloud-strikes Positive-strikes only 5% (ground up) - can occur 10 miles away and are very bright Most strikes (95%) are Negative from the cloud down BOTH KILL! If they are less than 5 SECONDS away you are n the KILL ZONE

18 Lightning follows ionized gamma ray tracks

19 IF IT S 5+ SECONDS AWAY YOU RE WELL INSIDE THE DANGER ZONE 19

20

21

22

23

24

25 25

26 HEELS TOUCHING 26

27 TOUCH YOUR HEELS TOGETHER

28 28

29

30 30

31

32

33 LOOK OUT FOR CORNICES, SLAB, and SLUFF (loose) SWIM FOR ALL YOUR WORTH AND MAKE AN AIR POCKET. 33

34 34

35 Lightning and carelessness starts Fires! 35

36 IF IT S TOO DANGEROUS RESCHEDULE!

37 37

38 PERSISTENT CONTRAILS INDICATE THAT THE AIR IS WET (HUMID) 38

39 = THE HUMIDITY IS HIGH THUS AFTERNOON THUNDER STORMS ARE POSSIBLE PROBABLY GOOD WEATHER FOR A WHILE - MAY INDICATE STRONG BREEZES 39

40 SURFACE MOISTURE (DEW) RISES WHEN HEATED. LOOK AT THE SHAPE OF THE ANVIL TO TELL IF IT S COMING AT YOU! IN THE AFTERNOON. CLOUDS FORM. IF THEY GROW TALL WATCH OUT!

41 THEY FALL APART ONCE THEY REACH THE STRATOSPHERE WHERE THEIR TOPS GETS SHEARED OFF

42 MAMMATUS CLOUDS (SINKING CLOUDS)

43 It Corkscrews It has a rain free base Its cloud top overshoot lasts more 10 min It has a long flanking cloud

44

45

46 NOTE THAT THE CLOUDS AE MOVING RAPIDLY IN DIFFERENT DIRECTIONS EXPECT A MAJOR CHANGE IN THE WEATHER

47 LOOKING WEST MOST FRONTS APPROACH US FROM THE WEST. PROGRESSIVELY LOWER CLOUDS ARE A STRONG INDICATOR OF APPROACHING BAD WEATHER 47

48 IF YOU SEE HIGH MARE S TAILS BECOMING A MACKEREL SKY YOU BETTER LOOK FOR A CAMPSITE SOON

49 WHEN STRATUS DARKENS IT WILL RAIN SOON - IT CAN STAY THAT WAY FOR 2-3 DAYS

50 IT MAY BRING A SEVERE STORM BUT, IS SHORT LIVED

51 IF THE FRONT IS PUSHING OVER THE RIDGE IT CAN GET VERY WINDY AND VIOLENT

52

53

54 NOAA WX RECEIVER MANY AMATEUR (HAM) RADIOS RECEIVE NOAA PLUS THEY CAN CALL FOR HELP WHERE CELL PHONES CAN T 54

55

56 UT s WEATHER MAP TUESDAY FEB. 17, 2014 DOES THE WORLD REALLY END HERE? MOST WEATHER MAPS DON T TELL US WHAT S COMING!

57 ??? TUES WED THUR

58 sat_products.html Yesterday: Monday 0900 Z Today: Tuesday 1500 Z In 30 Hours it moved ~20 degrees longitude to the East or ~1300 miles; for an average speed = 44 mph.

59

60 Don't seek shelter by LONE TREES or on high points; don't stand on WET GRANITE or be near WATER in a lightning storm. UNDER TREES that are dead, or have dead limbs or huge cones (Coulter Pines). Don't camp in a WASH or gully. Seek out or build a SHELTER IN A SNOWSTORM, - get out of the wind and stay warm! DON T GET SOAKING WET; if you do, change to drier clothes. DRINK LOTS OF WATER AND TAKE ELECTROLYTES

61 'MARE'S TAILS' (Cirrus Clouds) high in the sky Bad weather possible in HOURS MACKEREL SKIES and MARES TAILS Be wary, it may rain the NEXT DAY FAST CLOUDS going in DIFFERENT DIRECTIONS Bad weather: IT s COMING DEW at sunrise, it's a hot day, and cumulus towers are building: Expect AFTERNOON THUNDERSTORMS. MAMMATUS CLOUDS expect a VIOLENT STORM. STARS TWINKLE FURIOUSLY Expect a COLD NIGHT and winds.

62 TOMORROWS WEATHER WILL BE MUCH LIKE TODAY S 62

63

64

65

66 66

67

68 (BEWARE IT EXISTS ) (IT IS VERY POSSIBLE ) (LIKELY) OR JUST AN INCONVENIENCE ) (IT MAY or MAY NOT OCCUR )

69 TUESDAY 21 FEB

70 TODAY - TUESDAY WEDNESDAY THURSDAY FRIDAY

71 SATURDAY SUNDAY MONDAY TUESDAY

72 MONDAY 20 Feb 17 SATELLITE WEATHER MAP SHOWING EASTERN PACIFIC RAIN Giant Commas are LOW PRESSURE AREAS Most weather moves about 500 miles per day Our weather comes from the Gulf of Alaska or via the Pineapple Express

73 Cirrus Cirrostratus Alto- Stratus Cirrocumulus Alto- Cumulus Nimbo- Stratus Strato- Cumulus Stratus Cumulus Cumulonimbus 73

74

75 POLAR AREA EXPANDS IN THE WINTER Jet Streams and their Storm Tracks Move With The Seasons SUMMER WINTER 75

76

77 LIGHTNING CAN STRIKE TWICE IN THE SAME PLACE

78

79

80

81

82

83

84

85

86

87

88 88