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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EST Thu Dec 11 2025
WVZ043-112100-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
731 AM EST Thu Dec 11 2025
Date Thu 12/11/25 Fri 12/12/25 Sat 12/13/25
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 27 22 34 28 35
TEMP 25 27 26 24 23 24 24 26 29 33 33 32 32 32 30 28 30 33 34 29
DEWPT 21 21 20 20 20 21 22 23 26 30 30 30 30 29 28 26 26 25 25 25
MAX/MIN RH 75 97 87 93 68
RH 84 78 78 84 88 88 92 88 88 89 89 92 92 88 92 92 85 72 69 85
WIND DIR NW W W W W W W SW S SW W SW W W W W W W W W
WIND SPD 11 11 10 5 4 3 2 3 4 5 5 4 4 6 8 8 8 8 5 5
WIND GUST 24 21
CLOUDS B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B1 B2
CLOUDS(%) 77 79 71 74 75 87 89 92 98 96 93 89 88 84 78 82 74 60 62 81
VSBY 10 10 10 10 10 5 1 4 3 4 8 6 2 6 10 10 10 10 10 10
POP 12HR 20 60 90 40 5
FLURRIES SC
SNOWSHWRS IS IS NM NM O O NM SC SC IS IS SC
MIX HGT 3 3 3 <1 <1 1 <1 <1 1 1 1 <1 <1 1 2 2 2 2 2 1
T WIND DIR NW NW W W W W SW S S SW SW SW SW SW W W W W W W
T WIND SPD 27 20 16 13 11 8 3 6 6 9 4 3 3 4 10 20 21 14 13 6
DISPERSION PR VP VP VP VP VP PR PR PR
ADI 66 53 36 9 8 4 2 5 9 13 7 2 2 3 12 36 41 29 23 5
MAX LVORI 4 3 3 5 5 6 7 6 5 4 5 6 6 6 5 4 4 3 3 4
STABILITY D D D E E F F C D D D E E E D D D D D E
CEILING 1100 1400 700 700 700 700 0 100 900 5400
STA PRES 27.51 27.51 27.55 27.50 27.48 27.49 27.55 27.60 27.71 27.71
Date Sun 12/14/25Mon 12/15/25Tue 12/16/25Wed 12/17/25
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 15 17 4 26 16 38 25 45
TEMP 28 17 11 8 6 4 21 18 19 18 35 29 27 28 43 36
DEWPT 25 16 4 2 0 1 6 9 5 8 14 19 19 22 30 30
RH 88 96 73 76 76 87 52 67 54 64 41 66 71 78 60 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 B1 SC SC FW FW SC SC SC SC B1 B1 B2
POP 12HR 80 40 20 5 0 0 5 10
SNOWSHWRS SC O 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