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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
205 AM EST Tue Dec 9 2025
WVZ043-100900-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
205 AM EST Tue Dec 9 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 20 38 29 42 25
TEMP 23 21 27 35 36 32 30 32 34 36 40 41 40 36 32 30 27 25
DEWPT 23 20 23 24 27 23 24 25 26 27 30 32 34 33 30 27 24 22
MIN/MAX RH 100 64 78 68 90
RH 100 96 85 64 69 69 78 75 72 69 67 70 79 89 92 88 88 88
WIND DIR S S S SW SW SW SW SW SW SW SW W W W W W W W
WIND SPD 3 4 4 5 5 5 6 6 10 12 13 14 13 13 13 13 13 11
WIND GUST 16 17 18 24 28 31 29 28 28 28 27 26 25
CLOUDS OV B2 B2 SC B1 SC SC SC B1 B1 B2 B2 OV OV OV B2 B2 B2
CLOUDS(%) 90 78 71 45 59 41 30 44 63 61 79 82 98100100 82 77 81
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 6 2 1 5 5 6
POP 12HR 40 0 5 80 90
RAIN C D D
SNOW D D C C S
MIX HGT 1 <1 1 2 1 <1 <1 <1 <1 <1 2 3 3 2 2 2 2 2
T WIND DIR S S S SW SW S SW SW SW SW SW W W W W NW NW NW
T WIND SPD 4 4 9 10 12 8 9 9 11 11 24 32 18 20 14 26 26 24
DISPERSION VP PR PR PR FR FR FR FR FR
ADI 2 5 14 25 18 5 4 6 10 13 46 72 43 23 17 30 30 43
MAX LVORI 9 7 4 3 3 3 4 4 3 3 1 1 3 4 4 4 4 4
STABILITY F D D C D E F E D D D D D D D D D D
CEILING 200 None None 8000 7500 800 500 600
STA PRES 27.69 27.58 27.52 27.40 27.29 27.28 27.37 27.45
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 29 24 35 27 38 21 26 9 30
TEMP 28 27 26 25 33 33 32 27 35 33 30 22 25 17 12 10 26 25
DEWPT 20 21 21 22 26 28 29 25 25 24 24 19 14 8 5 3 10 12
RH 71 78 81 88 75 82 88 92 66 69 78 88 62 67 73 73 50 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 SC SC SC SC
POP 12HR 20 40 40 30 20 40 20 10 10
RAIN C C S C
SNOW S S S C C C C S S 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