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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Mon Dec 8 2025
NCZ005-090900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
1231 AM EST Mon Dec 8 2025
Date 12/07/25 Mon 12/08/25 Tue 12/09/25 Wed
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 30 34 18 40 30
TEMP 34 33 34 32 32 31 28 25 23 20 19 29 38 39 34 32 32 33 34
DEWPT 33 33 32 32 31 27 24 23 20 17 16 19 24 27 28 30 30 31 32
MIN/MAX RH 100 84 91 57 95
RH 96100 92100 96 85 85 92 88 88 88 66 57 62 78 92 92 92 92
WIND DIR NW NE NE NE NE NE NE N N N N SW SW SW SW SW SW SW SW
WIND SPD 1 2 6 10 10 9 8 5 4 2 1 2 5 5 5 5 6 9 10
WIND GUST 20
CLOUDS OV OV OV OV OV OV OV B2 SC FW FW SC SC SC SC SC SC B1 B1
CLOUDS(%) 91 96 96 96 96 96 93 74 38 24 24 28 35 37 39 36 46 54 62
VSBY 0 2 5 3 2 4 4 7 9 9 10 10 10 10 10
POP 12HR 30 90 10 0 0
RAIN S C
SNOW D L
MIX HGT <1 <1 <1 2 2 2 1 1 <1 <1 <1 1 2 2 <1
T WIND DIR NW NE NE NE NE NE N N NE N N W SW SW SW
T WIND SPD 1 2 18 16 23 20 17 14 11 5 3 2 8 12 6
DISPERSION VP VP PR PR VP VP PR PR PR PR
ADI 1 1 20 29 45 41 12 10 5 3 4 4 22 31 3
MAX LVORI 9 10 4 4 4 4 4 5 5 6 6 3 2 1 4
STABILITY F F D D D D E E G G B B C C F
CEILING 5600 400 900 1200 None None None None
STA PRES 29.30 29.38 29.44 29.51 29.51 29.52 29.39
Date 12/10Thu 12/11/25Fri 12/12/25Sat 12/13/25Sun 12/14/25
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 53 34 49 31 46 22 38 18 37
TEMP 51 48 41 34 48 43 37 32 44 38 29 22 35 29 22 19 35 29
DEWPT 34 35 35 31 31 31 32 29 26 23 19 12 10 10 9 8 8 10
RH 52 60 79 89 51 62 82 88 49 54 66 65 35 44 57 61 32 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW
POP 12HR 0 5 10 30 20 20 5 5 5
RAIN S C 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