EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Fri Sep 20 2024
VAZ096-210800-
Great Dismal Swamp RAWS-Suffolk VA
36.61N 76.55W Elev. 35 ft
510 PM EDT Fri Sep 20 2024
Date 09/20/24 Sat 09/21/24 Sun 09/22/24 Mon
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX 61 80 64 78 61
TEMP 71 66 64 62 63 73 78 78 72 69 67 65 66 73 76 76 70 66 64 62 64
DEWPT 65 64 63 61 63 65 64 64 65 64 64 63 64 66 66 65 64 63 62 62 62
MAX/MIN RH 100 58 97 67 100
RH 81 93 97 98 99 77 63 62 79 84 90 94 93 79 71 70 81 90 93100 94
WIND DIR E E NE N N NE N E SE SE S S SE SE E E E E NE NE NE
WIND DIR DEG 07 06 03 34 35 03 02 07 12 13 15 18 14 12 08 08 07 07 06 05 05
WIND SPD 3 3 1 1 1 2 3 3 2 2 1 2 3 3 4 5 3 3 2 2 2
CLOUDS FW FW FW SC SC FW FW SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC
CLOUDS(%) 9 11 22 44 39 21 18 30 35 44 53 55 57 60 63 58 52 47 42 39 36
VSBY 7 7 5 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 5 20 10 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
Obvis PF PF
LAL 1 1 1 1 1 1 1 1 1 1
HAINES 4 4 4 4 3 3 3 2 2 2
MIX HGT 400 500 4600 4300 500 500 3000 2700 800 600
T WIND DIR E NW NW W SE SE SE E NE NE
T WIND SPD 2 1 2 3 5 8 11 12 8 4
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 3 1 31 25 3 9 28 26 9 8
MAX LVORI 9 10 7 4 6 8 5 4 7 9
STABILITY F F B B F F C D F F
CEILING 30000 300 300 26600 5000 4000 3200 2300 4000 4700
PRESSURE 29.92 29.92 29.95 29.92 29.92 29.89 29.92 29.92 29.97 29.96
Date 09/23Tue 09/24/24Wed 09/25/24Thu 09/26/24Fri 09/27/24
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN 77 60 78 63 80 64 80 64 78
TEMP 75 68 63 63 76 71 66 66 78 72 67 67 78 72 67 66 76 71
DEWPT 61 60 58 60 62 63 63 65 68 67 67 67 68 67 65 65 64 64
MIN/MAX RH 59 97 60 100 67 100 67 100 62
RH 63 76 84 90 62 76 90 97 71 84100100 71 84 94 98 66 79
WIND DIR E E E NE E E E SE SE SE S N E E S NE E E
WIND SPD 5 3 1 2 3 2 1 2 3 2 2 2 3 3 2 2 5 3
AVG CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 10 10 10 20 30 30 30 30 30
RAIN SHWRS S S S C C C S C C S S C
TSTMS S S
$$
EXPERIMENTAL ONLY...THIS PRODUCT IS FOR PLANNING AND REVIEW PURPOSES ONLY AND
IS NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT
FORECAST.
BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT.
(NOTE...WINDS DO NOT REFLECT LOCAL TERRAIN EFFECTS.)
DAY 1 THROUGH 3...
MAX/MIN TEMP or MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP(F).............................AIR TEMPERATURE
DEWPT(F)............................DEW POINT TEMPERATURE
MIN/MAX RH or MAX/MIN RH(%).........MAXIMUM/MINIMUM HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
RELATIVE TO DUE NORTH.
EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
VSBY................................VISIBILITY VALUE IN STATUTE MILES
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
O..............OCCASIONAL
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
AF.............VOLCANIC ASHFALL
LAL(CAT)............................LIGHTNING ACTIVITY LEVEL
HAINES(CAT).........................HAINES INDEX
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISPERSION....................SMOKE DISPERSION CATEGORY
VALUES: VP = VERY POOR; PR = POOR; FR = FAIR; GD = GOOD
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
PRESSURE (INCHES MERCURY)...........STATION PRESSURE
MAX LVORI (INDEX)...................LOW VISIBILITY OCCURRENCE RISK INDEX
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
DAY 4 THROUGH 7...
MAX/MIN TEMP or MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP(F).............................AIR TEMPERATURE
DEWPT(F)............................DEW POINT TEMPERATURE
RH(%)...............................RELATIVE HUMIDITY
WIND DIR............................20 FT. WIND DIRECTION
WIND SPD(MPH).......................20 FT. WIND SPEED
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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