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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
234 PM EST Tue Dec 2 2025
NCZ003-030900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
234 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 25 45 28 48 28
TEMP 47 38 34 31 28 26 35 42 43 35 32 30 29 29 41 47 46 39 35 32 31 30
DEWPT 42 33 28 25 23 23 27 27 29 29 29 27 24 23 27 27 28 28 27 26 24 25
MIN/MAX RH 90 53 87 45 80
RH 83 82 78 78 81 88 72 55 57 78 88 88 81 78 57 45 49 64 72 78 75 81
WIND DIR NW NW N NW NW NW W SW SW SW W W W NW NW NW NW N N NE NE NE
WIND SPD 4 11 9 6 4 2 1 2 2 1 2 2 2 3 3 5 4 4 4 4 5 5
CLOUDS SC FW CL FW CL CL CL FW FW FW CL FW FW SC B1 B2 B2 B2 B1 B2 B2 B2
CLOUDS(%) 31 8 4 6 4 3 3 6 6 7 2 15 23 33 55 73 84 79 56 74 85 87
VSBY 10 10 10 10 10 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 30
RAIN L
SNOW C C L
MIX HGT 1 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR NW NW NW NW NW NW N SW SW SW W W W W NW NW NW N
T WIND SPD 8 11 9 8 8 3 1 5 5 2 3 2 2 2 11 14 11 8
DISPERSION FR PR PR VP VP VP VP VP VP VP VP PR
ADI 12 8 6 4 4 4 2 19 14 1 2 1 1 2 16 29 21 5
MAX LVORI 4 4 4 4 5 6 3 2 2 5 5 6 5 4 2 2 2 3
STABILITY C E E F F B B B B G G G G B C D D E
CEILING None None None None None None 6800 7100 7700
STA PRES 28.88 28.95 29.03 29.01 29.06 29.05 29.09 29.12
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 30 48 30 45 30 41 24 43
TEMP 34 34 33 33 45 42 35 30 44 39 33 30 40 34 29 25 40 37
DEWPT 27 31 31 31 36 34 31 29 31 32 29 27 28 27 24 23 26 28
RH 75 89 92 92 70 73 85 96 60 76 85 88 62 75 81 92 57 70
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 SC SC SC B1 B1
POP 12HR 70 40 20 20 5 20 20 10 10
RAIN L L C S S S S
RAIN SHWRS IS IS
SNOW L S
SNOWSHWRS 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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