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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Tue Dec 2 2025
WVZ043-030900-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
801 PM EST Tue Dec 2 2025
Date 12/02/25 Wed 12/03/25 Thu 12/04/25 Fri
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 TEMP 22 39 25 35 23
TEMP 27 27 24 23 29 36 37 30 27 27 27 26 32 35 34 28 26 25 25 25
DEWPT 25 23 22 21 24 25 25 24 23 22 22 23 25 25 23 22 21 19 20 21
MIN/MAX RH 100 56 87 64 84
RH 92 85 92 92 81 64 61 78 85 81 81 88 75 66 64 78 81 78 81 84
WIND DIR NW NW NW W W W W W W W W W W NW NW NW N SE SE SE
WIND SPD 8 5 3 3 3 3 4 2 2 2 3 4 6 10 8 4 2 2 3 4
WIND GUST 19 17
CLOUDS OV OV B1 SC FW FW FW FW FW FW SC B1 B1 B2 B1 B1 B1 B1 B2 B2
CLOUDS(%) 88 88 60 47 25 8 9 7 6 22 29 51 65 83 64 68 59 64 77 74
VSBY 9 10 7 3 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 0 5 30
FLURRIES SC
RAIN S
SNOW C C C
SNOWSHWRS
MIX HGT 2 2 2 1 2 2 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NW NW NW NW NW W W W W W W W NW NW NW NW
T WIND SPD 23 17 13 10 6 4 6 2 3 5 10 13 20 19 14 10
DISPERSION PR PR VP VP VP VP VP VP VP VP VP
ADI 26 12 6 18 14 12 14 1 2 3 5 15 40 45 30 7
MAX LVORI 4 5 5 5 4 2 2 4 5 5 4 4 3 1 2 4
STABILITY D E F B B B C G G G G D D D D E
CEILING 700 None None None None 900 900 1000
STA PRES 27.61 27.66 27.64 27.69 27.69 27.76 27.78
Date 12/05Sat 12/06/25Sun 12/07/25Mon 12/08/25Tue 12/09/25
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 TEMP 35 29 38 25 39 26 33 23 36
TEMP 34 33 31 31 37 33 29 26 38 32 28 27 33 30 26 24 35 31
DEWPT 27 29 29 31 32 28 25 25 29 27 25 25 25 24 21 22 25 25
RH 75 85 92100 82 82 85 96 70 81 88 92 72 78 81 92 66 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B2
POP 12HR 50 40 10 20 10 40 30 30 30
FRZG RAIN S
RAIN S C C S
RAIN SHWRS SC
SNOW C C
SNOWSHWRS SC SC SC IS SC IS IS
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
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 humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
FRZG RAIN......Freezing rain
FRZG DRZL......Freezing drizzle
COVERAGE...
IS.............Isolated
SC.............Scattered
NM.............Numerous
O..............Occasional
S..............Slight chance
C..............Chance
L..............Likely
WD.............Widespread
D..............Definite
AR.............Areas
PA.............Patchy
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
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 SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions
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