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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EST Wed Dec 3 2025
NCZ001-032100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
101 PM EST Wed Dec 3 2025
Date Wed 12/03/25 Thu 12/04/25 Fri 12/05/25
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 36 27 37 24 32
TEMP 33 28 28 29 29 29 31 34 34 29 29 29 26 27 24 27 30 32
DEWPT 22 22 20 16 15 16 18 20 21 22 22 23 24 24 24 26 29 30
MAX/MIN RH 59 77 54 92 89
RH 63 78 71 58 55 58 58 56 58 75 75 78 92 88100 96 96 92
WIND DIR W W W W W W W NW NW NW S S SE SE SE S S SW
WIND SPD 5 5 8 10 11 12 11 11 6 4 4 9 12 12 8 5 3 4
CLOUDS FW FW FW FW SC SC SC B1 B2 B2 B2 OV OV OV OV OV OV OV
CLOUDS(%) 6 19 6 22 32 37 45 66 76 70 83 91 91 95 94 95 89 92
VSBY 10 10 10 10 10 10 10 10 10 10 10 3 3 2 1 2 2 4
POP 12HR 0 0 5 70 80
FRZG RAIN L D D C C C
SLEET D
SNOW C L D D C
MIX HGT <1 <1 <1 <1 <1 <1 <1 2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
T WIND DIR W NW NW NW NW NW NW NW NW N SE SE SE SE SE S S SW
T WIND SPD 6 4 5 6 6 6 12 14 9 2 3 10 10 8 9 4 1 2
DISPERSION PR PR FR FR VP VP PR FR VP
ADI 7 2 4 5 5 8 15 26 11 2 2 9 9 9 10 5 1 2
MAX LVORI 3 4 3 3 2 3 2 2 2 3 3 4 6 5 7 9 9 7
STABILITY C F E E E D D D D E E D D D D D C E
CEILING None None None None 5500 6800 1000 300 200
STA PRES 26.65 26.70 26.69 26.73 26.74 26.74 26.68 26.63 26.52
Date Sat 12/06/25Sun 12/07/25Mon 12/08/25Tue 12/09/25
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 31 37 30 38 26 31 20 33
TEMP 32 33 36 32 31 30 35 33 31 26 30 24 22 22 32 27
DEWPT 32 32 33 31 29 28 31 29 27 24 23 20 18 17 21 20
RH 100 96 89 96 92 92 85 85 85 92 75 84 84 81 63 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B2 B2 B1 B1 B1 B1 B1 B2 B1 B1 SC SC SC SC
POP 12HR 40 10 20 20 30 20 5 5
FRZG RAIN C S
RAIN S S S S S
SNOW S C 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
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