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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EST Fri Dec 26 2025
VAZ018-270900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
201 AM EST Fri Dec 26 2025
Date 12/25/25 Fri 12/26/25 Sat 12/27/25 Sun
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 37 44 40 62 40
TEMP 44 40 39 42 43 41 44 51 51 52 56 62 60 49 45 42 41 41
DEWPT 39 33 31 31 33 37 43 50 49 49 48 46 45 42 41 39 38 37
MIN/MAX RH 96 66 97 55 88
RH 82 76 73 65 67 85 96 96 93 89 74 56 58 77 86 89 89 85
WIND DIR SE S S S S SW W W NW NW NW NW W SE SE SE SE SE
WIND SPD 2 4 4 5 4 3 3 5 6 6 5 3 2 2 2 2 2 2
WIND GUST 12 17 16 16 14 14 18 23 26 24 17
CLOUDS OV OV OV OV OV OV B1 B2 B1 B1 B1 SC SC SC B1 B2 B2 B2
CLOUDS(%) 92 99 92 92 90 93 69 70 65 54 54 35 43 42 59 80 84 86
VSBY 3 4 9 10 8 6 6 8 10 10 9 10 9 9 9 9 10 9
POP 12HR 30 50 40 0 10
RAIN C C S C C S
MIX HGT <1 1 1 1 1 <1 <1 2 1 1 1 2 1 <1 <1 <1 <1 <1
T WIND DIR E SE SE SE S S SW W W NW NW NW W S SE SE S SE
T WIND SPD 6 11 10 10 9 8 3 5 13 18 19 12 6 6 9 6 5 5
DISPERSION VP VP VP PR PR VP VP VP VP
ADI 3 15 14 16 13 4 2 4 9 26 32 28 12 3 4 3 3 4
MAX LVORI 5 4 3 3 3 6 8 8 6 4 3 2 2 4 5 6 6 5
STABILITY F D D D D F F E E D D B B F F F F C
CEILING 2100 600 500 500 None None 600 0
STA PRES 27.81 27.67 27.60 27.61 27.74 27.77 27.85 27.84
Date 12/28Mon 12/29/25Tue 12/30/25Wed 12/31/25Thu 01/01/26
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 56 47 62 23 33 24 42 26 39
TEMP 52 49 51 58 53 36 28 23 33 27 28 26 41 32 31 27 37 27
DEWPT 43 43 47 51 42 23 14 11 11 8 8 9 15 15 15 12 10 8
RH 71 80 86 77 66 59 55 59 39 44 42 48 34 49 51 53 32 44
WIND SPD <15 <15 <15 15> <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B2 B2 B2 B1 B1 B1 SC FW FW FW SC B1 B1 B1 SC SC
POP 12HR 10 40 80 20 5 0 5 5 5
RAIN C D C S
SNOW 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