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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Jul 22 2026

VAZ046-230800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 PM EDT Wed Jul 22 2026

Date           07/22/26      Thu 07/23/26            Fri 07/24/26            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                 63          76          60          79          62
TEMP                70 67 65 65 71 74 73 71 65 62 61 63 72 77 78 73 67 64 62 65
DEWPT               70 67 63 59 58 59 60 63 62 61 59 61 63 63 64 64 64 63 62 64
MIN/MAX RH                  100          59          96          62          99
RH                 100100 93 81 63 59 64 76 90 97 93 93 73 62 62 73 90 97100 97
WIND DIR            SW NE NE NE NE NE NE  E NE NE  N NE NE  E  E NE  E  E  N NE
WIND SPD             3  5 10  9  9  8  5  3  2  2  3  4  6  6  5  2  2  1  2  2
WIND GUST                 20 19                                                
CLOUDS              B2 B2 B2 B2 B2 B2 B2 SC FW FW B1 SC B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%)           72 77 79 72 77 72 70 31 13 17 57 32 72 79 83 79 82 74 78 78
VSBY                 6  7  7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                     60          10           5          10          20
RAIN SHWRS          SC SC SC                                     IS IS IS IS IS
TSTMS                                                                          
MIX HGT             <1 <1 <1  1  3  3  4 <1 <1 <1 <1 <1  3  3  4 <1            
T WIND DIR          SW NW NE NE NE NE NE NE  N  N  N NE  E  E  E  E            
T WIND SPD          10  5 20 23 19 11  5  3  2  2  3  4 10  5  4  8            
DISPERSION          VP PR FR             VP VP VP VP             VP VP VP VP   
ADI                  5  4 19 38 56 38 21  2  1  1  2  5 34 20 17  4            
MAX LVORI            9  9  5  3  1  1  2  4  7  7  8  6  3  2  2  3            
STABILITY            F  E  D  C  C  C  C  G  G  G  F  A  C  C  C  F            
CEILING             10300  2000  2700  4300  None  None  5900  3500  3500      
STA PRES            29.24 29.31 29.41 29.40 29.43 29.43 29.46 29.39            


Date           07/25Sun 07/26/26Mon 07/27/26Tue 07/28/26Wed 07/29/26
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      63      84      66      87      67      90      67      87
TEMP          76 72 65 66 81 77 67 69 85 80 70 70 87 81 70 70 84 79
DEWPT         65 66 64 66 69 71 67 69 70 71 68 69 72 71 68 68 69 69
RH            69 81 97100 67 82100100 61 74 93 97 61 72 93 93 61 72
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B1 B1 B1 SC SC SC SC SC SC B1 SC SC B1 SC SC SC SC
POP 12HR           20      30      20      20      20      30      40      30      30
RAIN SHWRS    IS IS SC SC    IS IS       IS SC IS    SC SC       SC
TSTMS                        IS IS       IS SC IS    SC 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