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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EST Sat Dec 6 2025
WVZ043-070900-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
1001 PM EST Sat Dec 6 2025
Date 12/06/25 Sun 12/07/25 Mon 12/08/25 Tue
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 27 41 27 31 19
TEMP 28 27 27 32 40 41 34 32 32 30 29 30 30 30 27 24 22 20 20
DEWPT 23 23 24 29 31 33 31 30 31 30 28 28 26 25 23 20 19 17 19
MIN/MAX RH 94 69 100 81 93
RH 81 85 88 88 70 73 89 92 96100 96 92 85 81 85 84 88 88 96
WIND DIR N N SE S S S W W NW N N N N N N S S S S
WIND SPD 0 0 1 3 2 2 2 2 2 3 4 4 5 4 2 2 2 2 2
CLOUDS B2 B2 OV OV OV SC B1 B2 B2 B2 B2 OV OV B2 B2 B1 B1 B1 SC
CLOUDS(%) 86 84 93 89 89 49 55 72 85 84 86 91 89 76 74 61 67 61 49
VSBY 10 9 9 10 10 10 9 8 4 4 3 3 3 3 7 7 10
POP 12HR 0 10 40 40 10
FRZG RAIN C
RAIN S S
SNOW C C C C C
MIX HGT <1 <1 <1 <1 1 <1 <1 <1 <1 <1 1 1 2 2 <1
T WIND DIR SW SE S SE SE SW N NW NW N N N NW W W
T WIND SPD 5 2 3 4 2 1 0 1 2 8 8 5 2 5 3
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 1 3 4 4 1 0 1 1 4 11 9 4 10 2
MAX LVORI 6 7 8 6 3 4 7 7 8 9 7 6 5 4 5
STABILITY F F C C C C F F F F D D D D F
CEILING 300 100 None 2800 100 100 3700 900
STA PRES 27.60 27.61 27.60 27.62 27.64 27.72 27.72
Date 12/09Wed 12/10/25Thu 12/11/25Fri 12/12/25Sat 12/13/25
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 39 29 44 30 39 28 34 15 23
TEMP 38 33 31 34 43 38 35 31 38 36 35 29 33 27 22 16 22 17
DEWPT 24 25 25 25 31 32 31 28 31 30 32 29 25 20 16 12 10 6
RH 57 72 78 69 62 79 85 88 76 79 89100 72 74 77 84 59 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR 0 5 20 50 50 60 40 30 10
RAIN S C C L C C
SNOW C C C C L C C C 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