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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Thu Dec 25 2025
VAZ024-260900-
RAWS 441631
37.63N 79.51W Elev. 865 ft
701 PM EST Thu Dec 25 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 36 41 40 65 38
TEMP 51 46 43 38 36 38 40 40 42 45 45 48 55 64 64 51 44 41 39 38
DEWPT 46 41 36 32 29 28 30 33 39 44 45 46 49 46 45 43 40 38 37 36
MIN/MAX RH 83 67 97 49 92
RH 83 83 76 79 75 67 67 76 89 96100 93 80 52 50 74 86 89 92 92
WIND DIR N NE E E E SE S SE S W W NW NW NW N E E SE SE S
WIND SPD 3 3 2 2 2 3 4 2 2 2 2 2 2 2 2 2 1 1 1 1
WIND GUST 13
CLOUDS B1 B2 B2 OV OV B2 OV B2 B2 B1 B1 SC SC SC SC B1 B1 B2 OV OV
CLOUDS(%) 58 76 75 91 91 86 88 85 75 55 54 43 31 26 34 56 56 81 89 91
VSBY 10 10 10 10 10 8 8 7 6 5 6 10 8 8 8 8 8 8 10
POP 12HR 10 20 20 0 5
RAIN S S S S
MIX HGT <1 <1 <1 1 2 2 2 1 <1 <1 1 1 2 3 2 <1
T WIND DIR NE E E E SE S S S SW SW NW NW NW NW S SE
T WIND SPD 4 9 5 6 8 9 10 8 5 3 3 6 12 5 2 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 4 3 13 16 18 19 4 3 2 2 10 35 22 5 4
MAX LVORI 6 5 5 4 3 2 2 3 5 8 8 5 3 2 2 3
STABILITY G F F C C D D F F F F B B B B F
CEILING 18900 10600 3200 1900 200 None None None 1000
STA PRES 28.57 28.60 28.59 28.46 28.34 28.33 28.45 28.49
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 54 45 61 25 39 23 45 24 45
TEMP 49 49 47 52 58 43 32 25 38 32 25 24 44 38 30 26 44 38
DEWPT 39 42 44 48 46 27 16 12 11 11 12 12 14 16 18 18 19 20
RH 68 77 89 86 64 53 51 57 32 41 57 60 29 40 60 71 36 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV B2 B2 B2 B2 B1 SC FW FW FW FW FW FW SC SC SC FW
POP 12HR 10 30 60 10 0 0 0 5 0
RAIN C L C
$$
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