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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Wed Aug 19 2026

VAZ024-200800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
731 PM EDT Wed Aug 19 2026

Date           08/19/26      Thu 08/20/26            Fri 08/21/26            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
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                 68          90          65          84          64
TEMP             80 74 72 70 71 83 88 86 77 71 68 66 68 78 83 78 72 69 67 65 67
DEWPT            67 66 66 66 66 68 69 70 69 69 68 66 68 70 71 71 69 68 67 65 67
MIN/MAX RH                   91          53         100          67         100
RH               65 76 81 87 84 61 54 59 76 93100100100 76 67 79 90 97100100100
WIND DIR          W  W NE  N  N SW  W  W NW  N  N  N  N  E  E SE  N  N  N  N  N
WIND SPD          3  1  1  1  0  2  4  3  1  1  0  0  1  1  2  2  0  0  0  0  0
CLOUDS           FW CL SC FW SC SC B1 SC SC B1 SC B1 B1 B2 OV OV B2 B2 B2 B2 B1
CLOUDS(%)         9  4 28 15 29 42 57 38 26 53 35 55 65 80 88 88 83 83 72 72 64
VSBY             10 10  9  9 10 10 10 10 10  6  7  7  7  7 10 10 10            
POP 12HR                      0          40          30          80          70
RAIN SHWRS                         SC IS    SC IS IS SC SC  O  O NM NM IS IS IS
TSTMS                              SC IS                   SC SC SC IS         
MIX HGT          <1 <1 <1 <1 <1  3  5  4 <1 <1 <1 <1 <1  2  2  2 <1            
T WIND DIR        W NW NW  N  E  S SW SW  N  N  N  N NE  N SE  S  E            
T WIND SPD        4  3  2  2  1 11  8 10 12  5 11  6  5  2  1  2  2            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI               2  2  1  1  1 41 34 50  6  3  5  3  6  5  3  7  1            
MAX LVORI         3  3  4  5  5  1  1  1  4  6  9  9  8  4  3  4  7            
STABILITY         G  G  G  G  A  A  C  A  G  F  G  F  B  B  B  B  F            
CEILING              None  None  None  None  None  None   800  1500  4100      
STA PRES            28.48 28.49  28.5 28.46 28.51 28.57 28.58 28.54            


Date           08/22Sun 08/23/26Mon 08/24/26Tue 08/25/26Wed 08/26/26
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       86      62      88      59      86      59      86      62      88
TEMP          85 76 66 66 86 76 64 63 85 75 63 62 84 76 65 65 86 77
DEWPT         70 67 65 64 64 60 61 60 60 59 59 59 63 63 63 64 68 67
RH            61 74 97 93 48 58 90 90 43 58 87 90 49 64 93 97 55 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 SC FW FW FW FW FW FW FW FW SC FW SC SC SC SC B1
POP 12HR           40      10       5       0       5      10      20      10      40
RAIN SHWRS    IS SC                                  IS       IS SC
TSTMS            SC                                              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