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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Aug 17 2026

VAZ018-180800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
801 PM EDT Mon Aug 17 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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          86          62          87          67
TEMP                72 71 70 70 79 84 82 73 68 65 63 66 80 86 85 75 71 69 67 69
DEWPT               69 68 67 68 70 68 67 65 64 62 60 62 64 64 63 64 63 63 62 64
MIN/MAX RH                   93          57          90          46          85
RH                  90 90 90 93 74 59 61 76 87 90 90 87 58 48 48 69 76 81 84 84
WIND DIR             W  W NW NW NW NW NW NW NW NW NW NW  W  W NW NW NW  W  W  W
WIND SPD             3  3  4  4  4  4  6  4  2  2  1  2  2  3  4  2  1  1  1  1
WIND GUST           13    14 16          16                                    
CLOUDS              B2 SC SC SC B1 SC FW FW FW CL FW SC FW FW FW FW FW FW SC SC
CLOUDS(%)           79 49 42 37 51 40 20 12 14  5 24 26 11 10 16 20 21 20 31 40
VSBY                 8  5  3  2 10 10 10 10  9  7  5 10 10 10 10 10 10 10 10  7
POP 12HR                     30          10           0           0           5
RAIN SHWRS                                                                   IS
TSTMS                                                                          
Obvis                F  F  F F+                                                
MIX HGT             <1 <1 <1 <1  3  4  4 <1 <1 <1 <1 <1  3  5  6 <1            
T WIND DIR          NW NW NW  N NE  S  W NW NW NW NW NW NW NW NW NW            
T WIND SPD           3  2  2  2  3  4  5 10  5  5  5  5 12 10 13 11            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  1  2  2 10 23 31  5  3  3  3  6 53 59 98  5            
MAX LVORI            7  7  7  6  3  2  1  4  5  5  6  5  1  1  1  3            
STABILITY            F  G  E  A  C  A  A  F  G  G  G  A  A  A  A  G            
CEILING              3300  None  None  None  None  None  None  None  None      
STA PRES            27.75 27.74 27.77 27.72 27.76 27.76 27.78 27.76            


Date           08/20Fri 08/21/26Sat 08/22/26Sun 08/23/26Mon 08/24/26
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       85      66      82      65      80      64      81      60      80
TEMP          85 75 69 67 79 71 68 66 79 71 67 65 79 70 63 61 78 69
DEWPT         69 68 66 66 71 68 65 65 69 66 63 63 65 61 59 58 61 58
RH            59 79 90 97 77 90 90 97 72 84 87 93 62 73 87 90 56 68
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC FW SC SC SC
POP 12HR           70      50      60      50      30      30      20       5       5
RAIN SHWRS    IS NM SC SC SC NM SC IS IS SC SC       IS            
TSTMS         IS SC IS    IS NM 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