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

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

Date           07/21/26      Wed 07/22/26            Thu 07/23/26            Fri
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                 73          85          63          76          61
TEMP                   74 73 74 81 84 83 77 73 70 65 64 70 74 76 72 66 63 61 64
DEWPT                  72 71 72 73 73 74 73 71 68 63 60 60 61 62 63 62 60 58 60
MIN/MAX RH                   99          69          97          62          92
RH                     93 93 93 77 70 74 87 93 93 93 87 71 64 62 73 87 90 90 87
WIND DIR               SW SW SW SW SW SW SW SW  N NE NE NE NE  E  E NE NE NE NE
WIND SPD               11 10 10 10  9  8  4  3  6 10  9  9  8  6  3  2  3  4  5
WIND GUST              24 21                      20 19                        
CLOUDS                 B2 SC B1 B1 B1 B2 B1 B1 B1 B1 B1 B2 B2 B1 SC SC SC B1 B1
CLOUDS(%)              85 50 62 59 65 76 66 66 62 68 56 78 74 61 49 41 33 59 56
VSBY                    7  7  8  9 10 10 10  7  6 10 10 10  7  7 10 10  7  7   
POP 12HR                     90          60          70           5          10
RAIN SHWRS              O IS SC SC SC NM SC SC SC                            IS
TSTMS                  SC       IS SC SC SC IS                                 
MIX HGT                <1 <1 <1  3  4  3 <1 <1 <1 <1  1  2  3  4 <1 <1 <1 <1 <1
T WIND DIR             SW SW SW  W  W  W  S  S NE NE NE NE NE NE NE  N  N NE NE
T WIND SPD             21 20 20 18 13  8  4  1 12 20 20 18  8  3  2  1  2  3  4
DISPERSION             FR FR             VP VP PR FR             VP VP VP VP   
ADI                    20 19 16 57 52 31  3  1  8 19 34 52 27 15  1  1  1  2  5
MAX LVORI               5  5  5  3  3  3  6  8  6  4  4  3  2  2  3  6  7  6  5
STABILITY               D  D  C  C  C  B  E  F  E  D  C  C  C  B  F  F  G  E  B
CEILING                    1200  5800  5600  2700  2100  3400 17800  None  None
STA PRES                  29.08 29.15 29.17 29.21 29.29 29.39 29.37 29.42 29.44


Date           07/24Sat 07/25/26Sun 07/26/26Mon 07/27/26Tue 07/28/26
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      63      79      64      87      67      90      68      90
TEMP          78 72 65 66 77 75 66 68 85 81 69 71 89 81 71 71 88 80
DEWPT         63 64 64 65 67 67 66 67 71 71 68 69 71 71 68 69 72 71
RH            60 76 97 97 71 76100 97 63 72 97 93 56 72 90 93 59 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC B1 SC SC B1
POP 12HR           20      30      30      20      20      10      20      40      40
RAIN SHWRS    IS IS SC SC SC SC IS IS    IS          IS SC IS    SC
TSTMS                                    IS          IS 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