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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Fri Aug 14 2026

VAZ046-150800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
301 PM EDT Fri Aug 14 2026

Date           08/14/26      Sat 08/15/26            Sun 08/16/26            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                 70          87          70          90          73
TEMP          87 82 76 74 72 73 80 84 86 78 74 73 71 72 81 88 90 83 77 75 73 75
DEWPT         74 73 72 73 70 71 72 71 71 72 72 72 71 72 75 76 75 75 74 73 72 72
MIN/MAX RH                  100          61         100          63          96
RH            65 74 87 97 93 93 77 65 61 82 93 97100100 82 68 62 77 90 94 97 90
WIND DIR       W  N NE  N  N NE NE NE  E  E SE SE  S  S SW SW SW SW SW SW SW  W
WIND SPD       5  3  3  2  2  3  4  3  3  2  2  1  2  3  5  6  8  5  6  5  5  5
CLOUDS        B1 B1 B2 B1 B2 SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 FW FW FW FW FW
CLOUDS(%)     57 66 71 64 72 45 65 67 55 55 51 55 59 61 67 54 54 22 23 12 21 24
VSBY           8  9  9  6  4  5 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                     60          40          30          30          10
RAIN SHWRS    SC SC SC SC SC IS    SC IS IS SC IS IS       SC SC               
TSTMS            SC SC             IS IS IS                SC SC               
Obvis                  PF PF PF                                                
MIX HGT        4 <1 <1 <1 <1 <1  3  3  4 <1 <1 <1 <1 <1  3  5  5 <1            
T WIND DIR     W NW NE  N NE NE NE NE  N  E  E  S  S  S SW SW SW SW            
T WIND SPD    16  8  8 10  8  8  6  3  4  5  2  8 10 10 16 17 19  9            
DISPERSION       VP VP VP VP             VP VP VP VP             PR PR PR PR   
ADI           59  4  4  5  4  9 20 14 23  3  1  4  5 11 49 72 79  4            
MAX LVORI      1  4  6  7  6  6  3  2  2  5  8  8  9  7  4  1  1  4            
STABILITY      C  F  F  F  F  A  C  B  B  F  F  F  F  B  C  C  C  F            
CEILING              4700   400  4400  3300  None  2100  2700  None  None      
STA PRES            29.35 29.40 29.43 29.40 29.39 29.35 29.29 29.15            


Date           08/17Tue 08/18/26Wed 08/19/26Thu 08/20/26Fri 08/21/26
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       92      70      89      68      90      71      92      68      86
TEMP          92 84 75 71 86 81 70 70 88 83 73 72 90 82 72 69 85 77
DEWPT         74 73 71 70 71 70 68 67 71 70 70 70 71 70 68 66 68 67
RH            56 70 87 97 61 69 93 90 57 65 90 93 54 67 87 90 57 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC B1 SC FW SC SC SC SC SC FW SC SC B1 B1 B1 B1 B1
POP 12HR           20      20      10      20       5      10      30      30      30
RAIN SHWRS       IS IS          IS                   SC SC       SC
TSTMS            IS IS                               IS          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