EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Mon Jul 20 2026

VAZ046-210800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
301 PM EDT Mon Jul 20 2026

Date           07/20/26      Tue 07/21/26            Wed 07/22/26            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                 70          87          69          86          64
TEMP          83 79 73 72 72 73 82 86 83 79 75 73 72 72 79 84 83 78 72 69 66 65
DEWPT         72 72 71 71 70 72 75 74 73 74 73 72 72 72 75 74 73 72 69 66 62 60
MIN/MAX RH                   97          68         100          70          92
RH            70 79 93 97 93 97 79 68 72 85 94 97100100 88 72 72 82 90 90 87 84
WIND DIR      SE SE  S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  N NE NE NE
WIND SPD       4  5  4  4  5  8 10 12 12 11 10 10 11 10 10 10  9  5  4  5  9  8
WIND GUST                          25 24    21 21 21 20    20             19   
CLOUDS        B1 B1 OV B2 OV B2 B1 B1 B2 OV B1 OV B2 B2 B2 B2 B2 B1 B1 SC B1 B1
CLOUDS(%)     61 55 89 71 88 71 62 68 86 93 63 93 86 83 83 73 73 54 54 47 54 54
VSBY          10 10  9  7  7  8 10 10 10 10  6  3  3 10 10 10  3 10 10  1 10   
POP 12HR                     50          60          90          70          30
RAIN SHWRS    SC SC SC IS IS    IS SC NM SC SC  O  O NM NM NM NM SC SC         
TSTMS         SC SC SC          IS SC NM SC SC SC IS    IS SC SC SC            
MIX HGT        4  1 <1 <1 <1  1  3  4  3 <1 <1 <1 <1  1  3  4  3 <1            
T WIND DIR    SE SE  S  S  S SW SW SW SW SW SW SW  S SW  W SW  W  W            
T WIND SPD     8 16 10  9  6 12 17 26 28  9 26  3 18 18 28 19 12  6            
DISPERSION       PR VP VP PR             FR FR FR FR             PR VP PR PR   
ADI           31 11  7  6  5 20 54 98 98  8 24  3 16 25 94 72 41  5            
MAX LVORI      3  4  6  6  7  5  3  1  3  4  5  8  5  4  4  3  3  4            
STABILITY      C  E  E  E  E  C  C  C  C  D  D  D  D  C  C  C  C  E            
CEILING              3100  1500  2100 11000  7300   200  1400  1700  None      
STA PRES            29.20 29.16 29.17 29.16 29.16 29.11 29.13 29.14            


Date           07/23Fri 07/24/26Sat 07/25/26Sun 07/26/26Mon 07/27/26
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       80      60      80      62      80      64      85      67      91
TEMP          78 73 61 63 78 74 65 65 78 74 66 67 83 79 70 71 89 84
DEWPT         61 61 59 59 62 63 63 64 66 67 66 67 70 71 68 69 72 71
RH            56 66 93 87 58 69 93 97 67 79100100 65 77 93 93 57 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC SC B1 B2 B1 B1 SC SC SC SC FW FW SC SC
POP 12HR           10      20      10      30      30      20      20      10      20
RAIN SHWRS             IS       IS SC IS SC IS IS IS IS          IS
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