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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 AM EDT Tue Jul 21 2026

VAZ012-212000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
831 AM EDT Tue Jul 21 2026

Date             Tue 07/21/26            Wed 07/22/26            Thu 07/23/26
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                 79          69          79          55          77
TEMP                77 79 78 74 71 70 69 69 72 76 79 72 64 59 56 58 68 73 76 70
DEWPT               70 69 69 68 67 68 68 67 69 67 66 65 62 59 56 58 61 61 61 61
MAX/MIN RH                   70          95          65         100          60
RH                  79 72 74 82 87 93 97 93 90 74 64 79 93100100100 78 66 60 73
WIND DIR             W  W SW  W SW  W  W  W  W  W  W NW  N  N  N  N  E  E  E  E
WIND SPD             5  5  4  4  4  4  4  3  3  3  3  2  2  1  1  1  2  1  1  2
WIND GUST              16 14 14 16 16                                          
CLOUDS              B1 B2 B1 B2 B2 OV B2 B1 B2 B1 B2 SC SC B1 B1 B1 B1 B1 B1 SC
CLOUDS(%)           65 79 56 75 85 90 86 58 73 69 72 39 49 52 58 60 56 55 52 33
VSBY                 7  6  7  3  3  3  6  7  9  9 10 10 10 10 10  7  7  7  7  7
POP 12HR                     60          90          70          10          30
RAIN SHWRS          SC NM SC NM  O  O  O SC NM SC NM                   SC SC   
TSTMS               SC NM SC SC SC SC IS    IS SC SC                           
MIX HGT              3  3  3  1 <1 <1 <1  1  2  4  3 <1 <1 <1 <1  1  3  4  4  1
T WIND DIR           W SW SW  S SW SW  W  W SW NW NW  N  N  N  N NE  E SE  E  E
T WIND SPD          14 20 24  8  8  8 12 19 11 14 10  9  9  6  4 10  5  2  4 10
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 44 69 87  5  5  5  8 27 34 65 40  4  4  3  2 14 22 10 22  5
MAX LVORI            3  1  1  3  6  6  8  4  4  3  1  4  6  9  9  5  3  3  2  3
STABILITY            C  C  B  E  E  E  E  B  B  B  B  G  F  F  F  A  B  B  B  G
CEILING              1300  5000  2000   700  1200  1700  None  1600  None  None
STA PRES            27.18 27.15 27.11 27.11 27.15 27.17 27.21 27.25 27.30 27.29


Date          Fri 07/24/26Sat 07/25/26Sun 07/26/26Mon 07/27/26
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       54      76      58      77      60      83      61      84
TEMP          58 58 72 69 62 60 72 71 63 63 78 74 64 64 79 75
DEWPT         57 58 61 62 60 60 65 65 62 63 66 66 63 64 66 65
RH            96100 68 78 93100 79 81 97100 67 76 97100 64 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B1 B1 B2 B2 B2 B1 SC B1 B1 B1 SC SC B1
POP 12HR           10      30      60      60      30      40      30      40
RAIN SHWRS          IS SC SC NM NM NM SC IS SC SC SC IS IS SC
TSTMS                  IS IS       SC IS       IS 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