EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
410 PM EST Mon Jan 13 2025
VAZ081-140900-
James River NWR RAWS-Prince George VA
37.25N 77.25W Elev. 50 ft
410 PM EST Mon Jan 13 2025
Date 01/13/25 Tue 01/14/25 Wed 01/15/25 Thu
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 23 40 19 36 16
TEMP 36 33 30 26 24 32 38 37 32 29 25 21 20 28 34 33 26 23 20 18 18
DEWPT 30 27 24 21 19 18 15 16 17 15 11 9 9 10 9 12 15 14 14 14 12
MAX/MIN RH 83 38 62 35 83
RH 79 78 78 81 82 56 39 42 55 55 55 59 63 46 35 41 61 69 78 83 78
WIND DIR W W W W W W W W W NW NW NW W NW NW NW NW NW NW W SW
WIND DIR DEG 26 27 28 29 29 28 27 27 29 31 31 30 29 30 30 30 30 33 32 26 21
WIND SPD 4 3 4 3 3 6 10 11 10 10 9 8 5 9 10 8 3 3 2 2 3
CLOUDS CL CL CL CL CL CL CL CL SC SC FW CL CL CL CL CL CL CL CL CL CL
CLOUDS(%) 5 2 4 4 3 4 4 4 29 40 13 3 3 3 4 3 2 2 3 2 3
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 5 0 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
LAL 1 1 1 1 1 1 1 1 1 1
HAINES 5 4 4 4 4 5 4 5 5 4
MIX HGT 400 700 3300 3100 500 600 3800 3900 400 500
T WIND DIR W W NW W NW NW NW NW NW W
T WIND SPD 6 6 12 11 12 10 18 10 4 4
SMOKE DISP PR PR PR PR PR PR FR FR PR PR
ADI 3 4 42 35 12 10 66 62 3 8
MAX LVORI 5 5 3 3 3 3 2 3 5 6
STABILITY F F C D E E C C F F
CEILING 30000 30000 30000 30000 6300 30000 30000 30000 30000 30000
PRESSURE 29.98 30.02 30.10 30.05 30.07 30.18 30.29 30.22 30.23 30.17
Date 01/16Fri 01/17/25Sat 01/18/25Sun 01/19/25Mon 01/20/25
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 42 26 49 33 51 36 49 29 41
TEMP 39 34 29 28 46 41 36 34 49 44 39 37 47 39 33 30 40 31
DEWPT 15 23 25 25 28 30 31 34 42 42 39 36 38 36 32 28 23 20
MIN/MAX RH 36 91 46 100 72 100 64 99 46
RH 37 63 85 87 50 65 82100 78 93100 97 71 90 99 95 51 64
WIND DIR SW SW W W W S S S SW SW W N NE N NW NW NW NW
WIND SPD 10 6 4 3 5 3 5 6 12 6 3 3 4 3 3 3 6 3
AVG CLOUDS FW FW FW CL CL FW SC B1 B2 B2 B1 B1 B1 B1 B2 B1 SC SC
POP 12HR 0 0 0 20 50 30 30 40 30
RAIN S C C C S S C C C C
SNOW C C S
$$
VAZ096-140900-
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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