EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
410 PM EST Sat Dec 21 2024
VAZ064-220900-
Ft AP Hill RAWS - Caroline VA
38.10N 77.27W Elev. 201 ft
410 PM EST Sat Dec 21 2024
Date 12/21/24 Sun 12/22/24 Mon 12/23/24 Tue
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX 20 34 15 38 23
TEMP 30 27 24 23 21 28 33 32 24 21 20 17 17 28 36 38 29 26 25 25 26
DEWPT 14 14 13 12 12 12 10 8 10 10 10 9 11 14 13 14 17 17 17 16 18
MAX/MIN RH 66 36 75 37 71
RH 51 58 61 63 68 50 38 36 54 62 66 70 77 54 38 38 59 67 71 68 71
WIND DIR NW N NW N N N N N NE NE NE E E S S S S S S SW SW
WIND DIR DEG 33 34 33 34 34 35 34 35 04 05 04 07 10 15 17 17 16 18 20 21 21
WIND SPD 4 3 3 3 3 6 5 3 2 1 1 1 1 2 3 3 2 2 3 3 2
CLOUDS SC B1 SC FW FW FW CL CL CL CL FW CL CL FW FW FW FW FW FW SC B1
CLOUDS(%) 37 51 30 19 14 7 2 1 3 5 8 5 5 7 16 14 12 15 22 45 60
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 0 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S
SNOW S
LAL 1 1 1 1 1 1 1 1 1 1
HAINES 4 5 4 4 4 4 4 4 4 4
MIX HGT 2000 1700 4100 3900 1000 400 2500 2100 400 500
T WIND DIR N N N N NE E SE S S SW
T WIND SPD 14 12 13 8 4 2 5 8 8 6
SMOKE DISP PR PR FR PR PR PR PR PR PR PR
ADI 11 29 55 39 3 3 23 22 4 7
MAX LVORI 3 3 1 2 3 5 3 3 3 3
STABILITY E F C C F F B C F F
CEILING 4600 4000 30000 30000 30000 20800 17100 13800 18200 30000
PRESSURE 30.17 30.22 30.32 30.34 30.39 30.42 30.45 30.37 30.32 30.21
Date 12/24Wed 12/25/24Thu 12/26/24Fri 12/27/24Sat 12/28/24
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN 47 28 45 29 46 32 50 37 51
TEMP 44 37 33 29 44 37 32 31 45 39 34 33 47 43 38 39 49 45
DEWPT 26 30 29 28 32 32 31 30 34 34 33 33 38 38 37 38 42 41
MIN/MAX RH 49 96 62 97 64 100 68 99 71
RH 49 75 84 96 63 81 96 97 66 83 96100 70 82 96 99 77 85
WIND DIR W N N N N NE N N NE NE N NE E E NE NE NE NE
WIND SPD 3 2 1 2 3 2 1 1 3 2 1 1 3 1 1 1 3 2
AVG CLOUDS B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2
POP 12HR 20 5 10 20 20 20 40 40 40
RAIN S S S S S S C C C C C C
SNOW 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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