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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Fri Nov 13 2026
VAZ012-140900-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EST Fri Nov 13 2026
Date 11/13/26 Sat 11/14/26 Sun 11/15/26 Mon
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 28 42 26 47 24
TEMP 33 32 31 29 34 39 40 34 32 31 29 27 38 43 46 38 33 30 27 25
DEWPT 28 27 25 22 27 24 22 24 25 24 26 26 30 29 26 28 27 25 24 22
MIN/MAX RH 83 45 96 45 93
RH 82 81 78 75 75 54 48 66 75 75 88 96 73 57 45 67 78 81 88 88
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW N N NW
WIND SPD 3 3 5 5 4 4 4 4 4 4 4 3 3 3 2 2 1 1 1 1
WIND GUST 16 14
CLOUDS B2 B2 B2 B2 B2 B2 SC SC SC SC B1 B2 B2 B2 B1 B1 B1 SC FW FW
CLOUDS(%) 77 81 77 86 86 73 40 38 36 47 63 73 84 72 64 61 56 39 22 24
VSBY 6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 10 0 0 0
RAIN SHWRS
SNOWSHWRS IS
MIX HGT <1 1 1 2 3 4 4 2 <1 <1 1 1 3 3 3 1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
T WIND SPD 10 11 14 16 19 18 18 14 13 12 14 12 16 13 12 9
DISPERSION VP VP PR VP VP VP VP VP VP VP VP
ADI 5 5 10 27 47 49 84 7 6 8 10 15 49 45 40 4
MAX LVORI 4 4 4 3 3 1 1 3 3 3 5 5 3 1 1 3
STABILITY F F E D D D B F F E E C C C C F
CEILING 600 1500 None None 1600 1700 1700 None
STA PRES 27.13 27.24 27.30 27.36 27.40 27.48 27.50
Date 11/16Tue 11/17/26Wed 11/18/26Thu 11/19/26Fri 11/20/26
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 25 62 27 66 29 68 33 69
TEMP 53 40 31 28 57 45 34 30 61 48 36 32 64 51 39 36 65 52
DEWPT 28 29 24 23 27 27 24 23 25 27 24 22 27 30 27 26 32 34
RH 38 64 75 81 31 49 66 75 25 44 61 66 24 44 62 67 29 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW CL CL CL CL CL CL CL FW FW SC SC SC FW
POP 12HR 0 0 0 0 0 0 0 0 5
$$
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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