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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 PM EST Mon Dec 1 2025
VAZ018-020900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
201 PM EST Mon Dec 1 2025
Date 12/01/25 Tue 12/02/25 Wed 12/03/25 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 30 45 23 44 28
TEMP 40 32 31 31 31 33 38 44 39 33 30 28 25 24 34 43 42 31 29 29 30 31
DEWPT 20 20 20 22 27 30 35 38 32 26 22 21 19 18 23 25 26 24 22 22 22 22
MIN/MAX RH 93 73 79 49 76
RH 44 61 63 69 85 89 89 79 76 75 72 75 78 77 64 49 53 75 75 75 72 69
WIND DIR SE SE S S S S W NW NW NW NW NW NW NW W SW SW W W W W W
WIND SPD 4 3 2 3 2 1 2 6 8 8 6 5 3 2 2 2 2 2 2 2 3 5
WIND GUST 13 14 17 25 28 25 18 14 12 14 19
CLOUDS SC SC B1 OV OV OV OV B2 SC SC B1 B1 SC FW CL FW CL FW FW SC SC SC
CLOUDS(%) 35 37 62 94 98 97 94 76 42 43 66 54 28 14 4 6 4 6 11 31 35 36
VSBY 10 10 10 4 2 3 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 100 0 0 0
FRZG RAIN C D
RAIN D C
SLEET S
MIX HGT 2 <1 <1 <1 <1 <1 <1 2 2 1 2 <1 <1 <1 1 2 2 <1
T WIND DIR SE SE SE SE SE N NW NW NW NW NW NW NW NW NW SW S S
T WIND SPD 9 9 10 12 10 2 3 23 29 29 25 20 14 8 5 4 8 2
DISPERSION VP VP VP VP PR PR PR VP VP VP VP VP
ADI 22 4 5 6 5 2 3 43 66 33 17 14 7 8 10 13 16 1
MAX LVORI 2 3 3 3 5 6 6 3 3 3 3 3 4 4 2 2 2 3
STABILITY C G F F F C C D C D E E G B B B B G
CEILING 4500 900 500 None 1200 None None None None
STA PRES 27.86 27.66 27.51 27.50 27.65 27.71 27.79 27.75
Date 12/04Fri 12/05/25Sat 12/06/25Sun 12/07/25Mon 12/08/25
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 43 23 37 29 46 31 46 29 41
TEMP 42 31 26 25 37 31 31 33 45 37 35 32 46 37 35 30 41 32
DEWPT 28 22 18 17 22 23 24 26 35 30 28 28 32 30 28 25 27 23
RH 57 69 71 71 54 72 75 75 68 75 75 85 58 75 75 81 57 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B1 SC
POP 12HR 5 5 20 40 20 20 10 20 10
FRZG RAIN C C
RAIN S S S S S
RAIN SHWRS IS
SNOW S S C C S
SNOWSHWRS IS
$$
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
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