EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Mon May 11 2026
VAZ081-112000-
James River NWR RAWS-Prince George VA
37.25N 77.25W Elev. 50 ft
510 AM EDT Mon May 11 2026
Date Mon 05/11/26 Tue 05/12/26 Wed 05/13/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN 60 44 73 52 78
TEMP 59 59 57 55 53 49 46 44 49 63 70 72 65 56 53 52 56 70 76 75 67
DEWPT 49 51 50 50 50 48 46 44 46 45 41 41 46 45 45 45 48 51 51 53 56
MIN/MAX RH 70 100 33 79 43
RH 70 74 78 84 90 97100100 89 53 35 33 50 67 75 78 74 52 43 47 68
WIND DIR N N N N NE NW NW NW N N NW W SE S S S S SW SW S SW
WIND DIR DEG 02 01 01 01 03 33 30 31 34 01 33 25 13 16 17 19 20 21 21 20 20
WIND SPD 10 10 9 5 2 1 1 2 3 4 3 3 2 3 3 3 5 12 12 10 4
CLOUDS OV OV OV OV B1 FW FW FW FW FW CL CL CL FW FW FW FW SC B2 B1 OV
CLOUDS(%) 88 94 95 94 55 18 19 25 17 7 4 4 3 6 10 13 15 33 72 64 96
VSBY 7 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 6
POP 12HR 80 0 0 0 40
QPF 12HR 0.12 0 0 0 0.11
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D C C C D
TSTMS C
MIX HGT 2600 2400 600 1100 6500 6700 500 1500 6100 5600
T WIND DIR N N W NW N SW S S SW SW
T WIND SPD 18 11 3 3 5 4 6 10 23 12
SMOKE DISP FR PR PR PR PR PR PR PR VG VG
ADI 60 51 3 5 46 46 4 28 108 69
MAX LVORI 3 6 10 10 4 2 4 4 1 3
STABILITY D C F F A A F F C D
CEILING 1000 1000 30000 30000 30000 30000 5500 20800 20600 5000
PRESSURE 29.98 30.01 30.02 30.05 30.10 30.02 30.02 29.97 29.92 29.73
Date Thu 05/14/26Fri 05/15/26Sat 05/16/26Sun 05/17/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX 55 74 50 75 55 87 63 91
TEMP 58 57 72 66 54 53 72 68 57 59 84 78 66 66 88 81
DEWPT 57 56 49 50 46 46 46 50 48 51 54 58 56 58 59 60
MAX/MIN RH 100 41 81 34 80 33 79 34
RH 98 97 45 57 74 78 39 52 73 76 37 50 69 76 38 50
WIND DIR S W NW N NW NW NW N SW SW SW SW SW SW SW S
WIND SPD 3 3 5 2 2 3 5 0 1 1 6 3 2 2 4 3
AVG CLOUDS OV SC FW SC FW FW CL FW FW FW FW FW FW FW FW FW
POP 12HR 90 10 0 0 0 5 5 5
RAIN SHWRS D S
TSTMS C
$$
disswamp-112000-
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
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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