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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 PM EDT Fri Aug 21 2026

VAZ018-220800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
1101 PM EDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            Mon
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                 64          83          63          79          57
TEMP                   66 66 66 72 80 79 70 67 65 64 63 72 78 75 66 62 59 57 58
DEWPT                  65 65 65 69 69 68 66 64 62 61 61 62 60 58 55 55 54 54 55
MIN/MAX RH                  100          66          93          52          91
RH                     97 97 97 90 69 69 87 90 90 90 93 71 54 55 68 78 83 90 90
WIND DIR                N  N  N SE SE  S NW  W  W  W NW NW NW NW NW  W  W  W  W
WIND SPD                0  0  0  1  2  3  2  3  4  6  6  8  8  8  4  3  3  3  3
WIND GUST                                      17 21 24 23 20 21 17            
CLOUDS                 B2 B2 B2 B2 B1 B1 SC SC B1 FW FW FW FW FW CL FW CL CL CL
CLOUDS(%)              85 84 78 72 53 58 35 27 57 21 13  9  8  8  3  6  2  0  3
VSBY                    4  5  4  9 10  9 10  8 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     70          40          30           0           0
RAIN SHWRS                      IS SC SC IS                                    
TSTMS                           IS SC SC IS                                    
Obvis                  PF PF PF                                                
MIX HGT                <1 <1 <1  2  4  3 <1 <1 <1 <1  1  3  5  6  1            
T WIND DIR              E  E  E SE  W  S SE SW SW  W  W NW NW  W  W            
T WIND SPD              5  4  3  2  3  4  3  3  2  6 14 19 19 14 13            
DISPERSION             VP VP             VP VP VP PR             VP VP VP VP   
ADI                     3  2  4  6 16 17  2  2  2  3 25 81119101  6            
MAX LVORI               8  8  9  6  3  3  6  7  7  6  5  3  1  1  3            
STABILITY               F  F  B  B  B  B  G  G  E  F  B  B  B  B  F            
CEILING                     400   700  None  None  None  None  None  None      
STA PRES                  27.81 27.81 27.75 27.74 27.73 27.78 27.78            


Date           08/24Tue 08/25/26Wed 08/26/26Thu 08/27/26Fri 08/28/26
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       79      55      82      61      84      65      83      65      85
TEMP          78 67 57 57 79 70 62 63 82 73 67 66 80 72 67 66 83 74
DEWPT         56 53 52 53 59 59 57 58 66 65 64 64 69 67 64 65 68 66
RH            47 61 83 86 50 68 84 84 58 76 90 93 69 84 90 97 61 76
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW SC SC FW SC B1 B1 B1 B1 B1 SC SC SC SC
POP 12HR            0       0       5       5      30      40      50      20      20
RAIN SHWRS                               SC SC SC SC SC IS       IS
TSTMS                                    SC IS       SC          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