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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Wed Aug 12 2026

VAZ024-122000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
631 AM EDT Wed Aug 12 2026

Date             Wed 08/12/26            Thu 08/13/26            Fri 08/14/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 86          69          94          71          92
TEMP             69 78 85 86 80 75 72 70 72 86 92 92 82 76 73 71 73 84 89 90 83
DEWPT            65 66 65 66 66 70 69 68 70 72 71 72 72 72 71 70 72 73 74 74 73
MAX/MIN RH                   50          96          50          99          58
RH               87 67 51 51 62 84 90 93 93 63 51 52 72 87 93 97 97 70 61 60 72
WIND DIR          W NW NW NW  W SW  W  W  W  W  W  W  W  W  N  N  W  W  W  W NW
WIND SPD          2  3  3  3  2  1  1  1  1  3  4  4  2  1  0  0  1  2  4  4  1
CLOUDS           B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 SC
CLOUDS(%)        69 44 37 49 39 48 50 44 29 30 58 59 53 63 57 59 62 63 71 71 48
VSBY              9 10 10 10 10 10  9  5 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     20          20          30          30          60
RAIN SHWRS                                        SC SC SC IS IS IS IS NM NM IS
TSTMS                                             SC IS                SC SC   
Obvis            PF                                                            
MIX HGT          <1  3  4  3 <1 <1 <1 <1 <1  3  5  4 <1 <1 <1 <1 <1  3  4  4 <1
T WIND DIR        W NW NW  N  W  W NW NW NW  N SW SW  W  W  W  W NW NW NW NW NW
T WIND SPD       12 11 18  9  6  4  5  4  3  2  9 12  8  4  4  3  4  9 12  8  2
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI              12 47102 40  3  2  3  2  3  9 53 65  4  2  2  2  5 32 48 29  1
MAX LVORI         5  1  1  1  3  6  6  8  6  3  1  1  3  6  6  8  7  3  1  2  3
STABILITY         A  A  A  A  G  F  F  F  A  A  B  B  F  F  F  F  B  B  C  C  F
CEILING              None  None  None  None  None  None  4100  3200  2600  3600
STA PRES            28.46 28.41 28.42 28.42 28.46 28.42 28.46 28.50 28.55 28.55


Date          Sat 08/15/26Sun 08/16/26Mon 08/17/26Tue 08/18/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       69      90      69      94      72      94      68      90
TEMP          72 71 87 82 72 71 91 85 75 74 92 84 72 70 88 81
DEWPT         71 69 70 69 68 69 72 72 71 71 71 70 69 68 67 67
RH            97 93 57 65 87 93 54 65 87 90 51 63 90 93 50 63
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC SC B1 SC FW FW SC SC SC SC FW SC
POP 12HR           20      20      20      20      10      20      10      20
RAIN SHWRS    IS IS    IS IS       IS          IS          IS
TSTMS                              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