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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Mon Dec 8 2025
NCZ001-090900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
701 PM EST Mon Dec 8 2025
Date 12/08/25 Tue 12/09/25 Wed 12/10/25 Thu
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 17 32 26 42 22
TEMP 24 21 19 18 23 30 30 26 26 29 33 35 37 40 37 34 32 28 25 23
DEWPT 23 20 18 16 17 19 22 21 20 20 21 22 24 28 30 30 29 24 22 20
MIN/MAX RH 100 62 80 60 91
RH 96 96 96 92 77 63 72 81 78 69 61 59 59 62 75 85 88 85 88 88
WIND DIR W W W W W W W W W W W W SW W W W W W NW W
WIND SPD 4 4 5 5 5 6 6 9 11 13 17 21 20 20 21 34 37 35 33 28
WIND GUST 32 32
CLOUDS OV OV OV B2 B2 B1 B1 FW SC B1 B1 B1 B1 B1 SC B1 B2 B2 B1 B1
CLOUDS(%) 100100100 73 80 60 53 15 27 58 60 63 65 57 50 67 71 74 63 68
VSBY 2 2 2 4 10 9 9 10 7 10 10 10 10 10 10 10
POP 12HR 30 0 0 10 30
SNOW C C
Obvis PF PF PF
MIX HGT <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 2 3 2 1
T WIND DIR NE W W W SW W SW SW W W W W W W W W
T WIND SPD 1 3 4 4 5 13 11 6 9 9 11 12 27 37 32 13
DISPERSION VP VP PR PR FR FR GD GD GD GD GD
ADI 1 2 3 4 4 22 12 5 6 8 10 14 51 85 58 12
MAX LVORI 9 8 8 6 4 2 3 4 4 3 2 2 1 1 3 4
STABILITY E E E C C D C E E D D D D D D D
CEILING 300 11400 20200 None None 10100 9400 None 800
STA PRES 26.70 26.69 26.69 26.61 26.58 26.49 26.41 26.35
Date 12/11Fri 12/12/25Sat 12/13/25Sun 12/14/25Mon 12/15/25
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 28 23 35 23 33 22 33 21 34
TEMP 26 25 25 26 32 30 28 24 31 25 25 23 32 25 23 22 33 26
DEWPT 20 20 19 20 24 24 24 21 20 18 18 17 21 18 16 16 19 19
RH 78 81 78 78 72 78 85 88 63 74 74 77 63 74 74 77 56 74
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 SC SC SC SC SC B1
POP 12HR 5 20 20 20 5 10 5 5 5
SNOW S 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