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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EST Mon Dec 8 2025
VAZ046-082100-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1231 PM EST Mon Dec 8 2025
Date Mon 12/08/25 Tue 12/09/25 Wed 12/10/25
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 29 12 35 27 47
TEMP 28 26 25 23 19 14 13 25 31 34 32 30 30 29 28 38 44 45 39
DEWPT 26 23 21 18 15 11 8 16 20 23 24 25 27 28 28 34 35 35 35
MAX/MIN RH 84 89 60 100 65
RH 92 88 84 81 84 88 80 68 63 64 72 81 88 96100 85 70 68 85
WIND DIR NE NE NE N N NW NW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 11 10 6 5 3 2 2 3 6 6 6 8 8 10 11 12 12 12 10
WIND GUST 23 17 18 19 21 23 26 25 24 23
CLOUDS OV OV OV B1 SC SC SC FW SC SC SC B1 B1 B1 B1 B2 B2 B2 B1
CLOUDS(%) 95 95 94 55 31 26 34 25 31 32 48 54 61 61 64 74 77 75 51
VSBY 1 1 2 6 6 7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 30 0 0 5
SNOW D C C
MIX HGT 2 2 1 <1 <1 <1 <1 <1 2 1 <1 <1 <1 <1 <1 1 2 1 <1
T WIND DIR NE NE N N N W W SW SW SW S SW SW SW SW SW SW SW SW
T WIND SPD 23 21 17 14 3 1 1 3 11 14 9 10 10 10 19 20 19 13 11
DISPERSION PR PR VP VP PR PR PR FR FR
ADI 45 36 12 10 2 1 1 4 27 28 6 9 9 9 21 33 34 19 10
MAX LVORI 4 4 4 4 6 6 5 3 2 2 3 4 5 6 5 4 3 3 4
STABILITY D D E E G G B B C C E D D D D D D D D
CEILING 3200 None None None None None 9600 11800 7300
STA PRES 29.49 29.55 29.53 29.50 29.35 29.27 29.13 29.00 28.95
Date Thu 12/11/25Fri 12/12/25Sat 12/13/25Sun 12/14/25
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 29 42 25 42 23 35 17 34
TEMP 35 30 40 35 31 26 40 34 29 23 34 28 23 17 31 26
DEWPT 30 26 26 26 23 23 26 26 23 17 11 9 7 6 8 8
RH 82 85 57 69 72 88 57 72 78 77 38 44 50 61 37 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC SC FW SC SC SC FW
POP 12HR 5 5 20 20 10 5 5 5
RAIN S
SNOW S S S
$$
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