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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EST Wed Nov 11 2026
NCZ001-120900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
401 PM EST Wed Nov 11 2026
Date 11/11/26 Thu 11/12/26 Fri 11/13/26 Sat
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 44 47 30 35 27
TEMP 48 47 48 48 46 43 44 40 40 40 38 36 33 31 35 33 32 32 31 29 28
DEWPT 38 38 43 47 45 42 41 38 38 38 35 34 32 30 29 29 31 30 28 27 26
MIN/MAX RH 98 86 99 79 94
RH 68 71 83 96 96 96 89 92 92 92 89 92 96 96 78 85 96 92 88 92 92
WIND DIR W W W W W W W NW NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 8 10 13 16 20 19 17 17 20 21 21 21 21 18 17 16 19 20 20 25 28
WIND GUST 26 36 34 28 27 32 33 32 28 31 32
CLOUDS B1 CL SC B2 B1 B2 B2 OV B2 B2 B2 OV B2 B2 B1 B2 B1 SC B1 B1 B1
CLOUDS(%) 57 5 35 71 68 77 84 88 78 75 84 90 78 70 59 80 59 49 66 54 62
VSBY 10 10 9 9 9 8 10 10 6 4 3 3 4 4 6 6 7
POP 12HR 30 50 40 30 20
RAIN SHWRS IS SC SC SC SC SC SC
SNOWSHWRS SC SC SC SC IS IS
MIX HGT <1 <1 <1 <1 <1 2 2 2 2 2 2 2 2 2 3 3 2
T WIND DIR W W W W W W W NW NW NW NW NW NW NW NW NW NW
T WIND SPD 10 14 17 18 26 26 23 23 26 26 25 26 27 21 18 17 23
DISPERSION PR FR FR GD GD GD GD GD GD GD GD GD
ADI 9 10 15 16 31 57 48 49 30 30 28 30 51 47 43 39 26
MAX LVORI 3 3 4 5 4 4 4 4 4 4 4 4 4 4 3 4 4
STABILITY D E D D D D D D D D D D D D D D D
CEILING None 900 800 700 800 700 800 0 None
STA PRES 26.65 26.53 26.5 26.50 26.53 26.53 26.58 26.60
Date 11/14Sun 11/15/26Mon 11/16/26Tue 11/17/26Wed 11/18/26
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 33 26 41 27 43 29 45 29 51
TEMP 31 29 28 26 38 31 29 28 40 33 32 30 43 34 32 31 49 36
DEWPT 23 23 24 23 22 25 24 24 24 27 25 26 25 27 25 24 24 27
RH 72 78 85 88 52 78 81 85 52 78 75 85 49 75 75 75 37 69
WIND SPD 15> <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC FW FW FW FW SC SC SC SC SC FW FW FW FW FW
POP 12HR 0 0 0 0 5 10 5 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
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