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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Thu Nov 12 2026
VAZ046-130900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1231 AM EST Thu Nov 12 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 46 67 39 56 31
TEMP 50 48 47 59 66 63 54 49 46 42 40 50 55 54 45 39 35 32 32
DEWPT 46 44 45 49 48 44 43 41 40 39 36 36 30 27 31 31 30 29 28
MIN/MAX RH 93 50 88 35 91
RH 86 86 93 69 52 50 66 74 79 89 85 58 38 35 58 73 82 88 85
WIND DIR SW SW SW W W W NW W W W W NW NW NW NW NW NW W W
WIND SPD 3 3 4 6 13 13 11 9 9 8 6 9 9 10 8 6 4 5 6
WIND GUST 24 23 20 18
CLOUDS CL FW B2 SC SC SC SC SC FW SC FW FW SC B2 B1 SC SC SC CL
CLOUDS(%) 5 11 86 28 39 41 40 47 21 39 20 25 44 78 62 37 43 28 5
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 20 10 5 5
RAIN SHWRS IS IS
MIX HGT <1 <1 <1 2 5 3 1 2 <1 <1 <1 4 6 6 <1
T WIND DIR SW W W W W W W NW NW NW NW NW NW NW NW
T WIND SPD 9 8 8 16 19 20 17 12 11 10 9 12 12 12 9
DISPERSION VP VP FR PR PR PR PR PR VP PR
ADI 4 4 9 45 83 52 12 17 8 7 10 50 58 41 8
MAX LVORI 5 6 6 3 1 1 3 3 4 5 4 1 1 1 2
STABILITY F G D B C D E D E E B C C D D
CEILING None None None None None None 4500 None
STA PRES 28.91 28.85 28.81 28.88 28.92 28.98 29.01
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 52 29 54 29 54 30 54 29 57
TEMP 52 41 33 30 52 41 33 30 52 41 34 31 53 41 33 30 56 42
DEWPT 25 27 27 26 30 30 30 28 32 31 31 29 32 32 29 27 32 31
RH 35 57 78 85 43 65 89 92 46 67 89 92 44 70 85 88 40 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL CL CL FW FW FW FW SC SC SC SC SC FW FW FW
POP 12HR 0 0 0 0 0 0 5 5 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