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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Jul 31 2026

VAZ024-312000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 AM EDT Fri Jul 31 2026

Date             Fri 07/31/26            Sat 08/01/26            Sun 08/02/26
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                 91          64          90          68          84
TEMP                80 87 88 81 71 67 65 69 82 88 88 81 75 72 71 71 75 82 81 76
DEWPT               59 57 56 59 60 59 59 61 64 65 67 67 68 68 67 68 71 71 72 71
MAX/MIN RH                   33          83          47          93          70
RH                  49 36 34 47 68 75 81 76 55 47 50 63 79 87 87 90 87 69 74 85
WIND DIR             N  W  S SE  N  N  N  N  S  S  S  S SE  S SE SE SE  S  S  S
WIND SPD             0  1  2  1  0  0  0  0  2  6  6  4  4  3  3  3  4  5  4  2
WIND GUST                                      17 18 18 18 18 13               
CLOUDS              FW SC FW FW SC B1 SC B1 B1 OV B2 B1 B2 B2 B2 B2 B2 OV B2 B2
CLOUDS(%)            7 36 23 20 43 52 36 53 66 90 79 63 76 81 83 81 86 93 82 80
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0          30          50          70
RAIN SHWRS                                           IS IS SC SC SC SC  O  O NM
TSTMS                                                IS IS       IS IS SC SC SC
MIX HGT              4  6  6 <1 <1 <1 <1 <1  4  7  5 <1 <1  1 <1 <1  2  3  2 <1
T WIND DIR           W  W  W SE  E  E NE SE  S  S  S  S  S  S  S SE  S  S  S SW
T WIND SPD           3  3  3  2  2  2  2  1 16 19 20 12 10 11 10  8 10 19 19 12
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 18 25 25  1  1  1  1  1 74 91 87  8  7  5  5 10 23 62 55  6
MAX LVORI            2  2  2  2  3  4  5  4  1  1  1  3  4  5  6  5  4  3  3  5
STABILITY            A  A  A  G  F  F  G  B  B  C  C  E  E  F  F  B  C  C  C  F
CEILING              None  None  None  None  6000  4100  4300  1900   100  2000
STA PRES            28.53 28.48 28.47 28.45 28.44 28.36 28.36 28.33 28.31 28.30


Date          Mon 08/03/26Tue 08/04/26Wed 08/05/26Thu 08/06/26
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       68      86      66      85      67      86      68      89
TEMP          71 71 83 79 69 69 83 78 70 70 84 79 70 71 87 81
DEWPT         70 71 73 72 69 69 72 72 70 70 72 72 70 70 72 72
RH            97100 72 79100100 70 82100100 67 79100 97 61 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 B2 B1 B1 B2 B2 B1 B1 B1 B1 SC SC B1 B1
POP 12HR           70      60      40      60      30      50      20      50
RAIN SHWRS    NM SC SC NM SC    IS NM SC    IS SC IS    IS SC
TSTMS         SC    IS SC SC    IS SC IS       SC IS       SC

$$


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