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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EST Fri Nov 13 2026
VAZ046-140900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
131 AM EST Fri Nov 13 2026
Date 11/12/26 Fri 11/13/26 Sat 11/14/26 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 41 55 29 52 29
TEMP 42 41 51 54 54 45 39 34 31 29 45 51 51 42 37 34 31 30
DEWPT 35 33 33 30 25 27 28 28 26 25 28 26 25 26 26 26 25 25
MIN/MAX RH 79 32 83 35 83
RH 76 73 50 40 32 49 64 78 81 85 51 37 36 53 64 72 78 81
WIND DIR W W N NW N N NW NW NW W NW NW NW W W W W W
WIND SPD 9 8 10 9 8 6 4 4 5 5 10 11 11 6 5 5 5 5
WIND GUST 19 17 21 21 17
CLOUDS FW FW FW SC B1 SC FW FW CL CL CL SC FW CL CL CL CL CL
CLOUDS(%) 16 17 18 35 63 29 14 22 4 1 1 38 15 3 3 0 1 0
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 5 6 7 1 <1 <1 <1 <1 4 7 5 <1 <1 <1 <1 <1
T WIND DIR W W N NW N N N NW NW NW NW NW NW NW W W W NW
T WIND SPD 11 10 14 12 13 13 8 8 9 9 14 18 18 11 10 10 9 10
DISPERSION PR PR VP VP PR PR PR PR PR
ADI 8 11 60 58 47 6 4 4 4 10 58 86 79 5 5 5 4 11
MAX LVORI 4 3 1 1 1 2 3 3 4 4 1 1 1 2 3 3 4 4
STABILITY E B C C D F F F F B C C C F F F F B
CEILING None None None None None None None None None
STA PRES 28.93 28.99 29.03 29.13 29.19 29.28 29.33 29.44 29.50
Date 11/15Mon 11/16/26Tue 11/17/26Wed 11/18/26Thu 11/19/26
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 28 56 28 58 28 63 28 65
TEMP 55 46 34 30 54 45 33 29 56 46 33 29 60 47 34 30 63 50
DEWPT 30 31 29 27 32 32 30 27 33 33 30 26 32 32 29 26 31 33
RH 38 55 82 88 43 60 89 92 42 60 89 88 35 56 82 85 30 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW CL FW FW FW FW FW CL CL CL CL CL CL CL FW FW
POP 12HR 0 0 0 0 0 0 0 0 0
$$
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