EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
950 AM EDT Sun Aug 17 2025
VAZ081-172000-
James River NWR RAWS-Prince George VA
37.25N 77.25W Elev. 50 ft
950 AM EDT Sun Aug 17 2025
Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25
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 93 72 86 69 82
TEMP 83 91 93 86 78 74 72 74 81 84 82 76 72 71 71 71 78 81 82 76
DEWPT 70 70 70 72 71 71 71 72 73 73 73 72 72 70 70 71 73 72 71 70
MIN/MAX RH 48 100 70 100 71
RH 65 51 48 63 79 89 96 93 77 70 75 87100 97 99 99 84 75 71 83
WIND DIR SW SW S S S SE S N N NE NE NE NE NE NE NE NE NE NE NE
WIND DIR DEG 23 20 19 17 18 12 16 34 02 03 04 03 05 05 04 04 05 05 06 06
WIND SPD 2 2 2 2 2 2 2 2 3 4 4 3 2 2 2 3 4 5 5 3
CLOUDS FW FW FW FW B1 SC SC SC SC B1 B1 B1 SC SC B1 B1 SC B1 B1 SC
CLOUDS(%) 24 16 14 25 55 44 39 33 43 57 57 55 45 47 52 53 43 51 51 34
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 5 30 40 20 30
QPF 12HR 0 0.01 0.11 0.02 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C S S C C
TSTMS S C C C S S S
MIX HGT 5200 600 800 3500 2900 800 1000 4700 4600
T WIND DIR W S N NE NE NE N N NE
T WIND SPD 5 3 5 13 14 11 10 13 12
SMOKE DISP PR PR PR PR PR PR PR FR FR
ADI 47 2 14 45 43 7 16 70 59
MAX LVORI 3 7 9 4 5 9 9 4 5
STABILITY A F F A C F F A C
CEILING 6300 7500 7200 7200 4000 1000 1000 1000 1700
PRESSURE 29.77 29.76 29.78 29.87 29.88 29.95 29.95 29.96 29.90
Date Wed 08/20/25Thu 08/21/25Fri 08/22/25Sat 08/23/25
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 70 84 68 84 66 82 66 83
TEMP 71 71 82 76 70 70 82 75 68 68 80 74 68 68 81 76
DEWPT 70 71 73 72 69 68 68 68 66 67 68 68 65 67 68 69
MAX/MIN RH 100 73 100 63 97 66 96 64
RH 98100 74 88 97 94 63 79 93 97 67 82 91 96 65 79
WIND DIR NE NE NE NE N N N NE NE N E SE SE SE S SE
WIND SPD 2 3 4 3 2 4 6 3 2 2 4 2 2 2 3 2
AVG CLOUDS SC SC SC SC SC SC SC B1 SC SC B1 B1 B1 B1 B1 B1
POP 12HR 10 20 20 30 20 20 20 30
RAIN SHWRS S S C S S S S S S C
TSTMS S S S S S
$$
VAZ096-172000-
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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