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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Thu Aug 13 2026

VAZ012-140800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
231 PM EDT Thu Aug 13 2026

Date           08/13/26      Fri 08/14/26            Sat 08/15/26            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
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08

MIN/MAX TEMP                 66          87          68          88          67
TEMP          80 74 69 68 68 68 77 82 85 78 72 70 69 69 80 86 83 76 71 70 69 68
DEWPT         70 70 68 67 67 68 70 70 70 69 69 68 67 69 73 72 72 71 69 68 67 68
MIN/MAX RH                  100          62          98          64         100
RH            72 87 97 97 97100 79 67 61 74 90 93 93100 79 63 70 85 93 93 93100
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W NW NW NW  W SW SW  W SW
WIND SPD       4  3  2  3  3  2  2  3  2  1  2  2  2  1  2  2  2  1  1  1  2  2
CLOUDS        B1 B1 B1 SC B1 B1 B1 B1 SC SC B1 B1 SC B1 B1 B2 B2 SC SC SC B1 SC
CLOUDS(%)     55 58 55 48 65 63 68 60 43 33 53 53 45 64 55 76 76 43 35 44 56 49
VSBY          10 10 10  7  6  5 10 10 10 10 10 10 10  9 10  3  6 10 10  7  0   
POP 12HR                     10          40          40          60          20
RAIN SHWRS    IS             SC IS IS IS    SC IS    IS IS NM NM IS IS         
TSTMS         IS                IS IS IS    SC IS       IS SC SC IS            
Obvis                     PF PF                                                
MIX HGT        3 <1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  3  5  3 <1            
T WIND DIR     W  W  W SW  W  W NW  W  W  W  W NW  N SW  W NW  W  W            
T WIND SPD    11  4  4  4  4  5  8  8 13  8  5  5  1  1  5  9  6  1            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           40  2  2  2  2  6 23 35 71  4  3  3  1  1 21 53 29  1            
MAX LVORI      3  6  8  8  8  8  3  3  1  3  6  6  8 10  3  1  3  6            
STABILITY      C  F  F  F  F  B  B  B  A  G  F  F  F  B  B  B  B  F            
CEILING        None  None  3600  1300  None  7400  None  None  2700  None      
STA PRES      27.28 27.31 27.32 27.39 27.35 27.38 27.40 27.43 27.41            


Date           08/16Mon 08/17/26Tue 08/18/26Wed 08/19/26Thu 08/20/26
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MAX/MIN TEMP       90      68      88      65      85      63      87      64      88
TEMP          86 80 72 70 83 77 68 66 80 75 66 65 83 77 68 66 83 77
DEWPT         70 68 66 66 68 68 65 66 67 66 63 64 66 65 63 63 66 65
RH            59 67 81 87 61 74 90100 65 74 90 97 57 67 84 90 57 67
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC FW SC SC B2 SC SC B1 B1 SC SC SC SC FW FW SC SC
POP 12HR           20      20      60      20      40      20      20      10      20
RAIN SHWRS       IS    IS IS NM IS    IS SC IS       IS          IS
TSTMS            IS    IS    SC IS       SC          IS          IS

$$


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