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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EST Sun Dec 7 2025
WVZ043-080900-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
1001 PM EST Sun Dec 7 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 29 29 20 39 31
TEMP 32 31 30 29 28 26 24 23 23 21 21 29 37 38 34 32 33 34 36
DEWPT 30 30 30 29 28 26 24 23 21 19 21 25 25 26 26 26 27 27 27
MIN/MAX RH 100 96 100 58 79
RH 92 96100100100100100100 92 92100 85 61 62 72 78 78 75 69
WIND DIR NE NE NE E E E E SE SW S S SW SW SW SW SW SW SW SW
WIND SPD 2 3 4 5 5 4 3 2 2 2 2 4 8 8 6 6 6 9 11
WIND GUST 18 18 18 21 26
CLOUDS OV OV OV OV OV OV B2 B2 B2 B1 B1 SC SC SC SC SC B1 B1 B1
CLOUDS(%) 94 91 93 94 96 95 86 72 79 69 68 45 47 50 43 32 52 59 69
VSBY 10 7 1 0 1 1 4 9 6 10 10 10 10 10 10
POP 12HR 60 90 20 0 0
SNOW C D L D C S
MIX HGT <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR N N E E E E E SE SW W SW SW SW SW SW
T WIND SPD 2 4 9 12 9 8 4 2 2 3 4 4 12 13 9
DISPERSION VP VP VP VP VP VP PR PR PR PR
ADI 1 2 7 20 16 13 2 1 1 2 4 7 36 30 6
MAX LVORI 7 9 8 5 5 5 9 10 7 7 9 4 1 2 3
STABILITY F F C D D D F F F F C C C C E
CEILING 2900 100 800 200 200 None None None
STA PRES 27.62 27.66 27.70 27.75 27.73 27.73 27.60
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 45 29 34 24 32 12 22 11 23
TEMP 44 40 33 29 34 32 30 25 31 25 20 13 20 17 14 11 21 18
DEWPT 32 33 30 26 27 26 26 23 22 18 13 7 8 6 5 6 6 6
RH 62 76 89 88 75 78 85 92 69 74 74 76 59 61 67 80 52 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 B1 B1 B1 SC
POP 12HR 20 40 40 60 40 40 20 20 10
RAIN S C C
SNOW C S S C L L C C C C 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