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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Tue Sep 22 2026

VAZ020-230800-
RAWS 441801
37.99N  79.76W Elev. 2160 ft
231 AM EDT Tue Sep 22 2026

Date           09/21/26      Tue 09/22/26            Wed 09/23/26            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                 63          66          55          59          51
TEMP                      64 64 66 66 64 61 60 59 58 56 57 59 58 55 56 56 53 51
DEWPT                     64 64 65 63 61 56 57 57 56 56 57 58 57 51 51 52 51 50
MIN/MAX RH                  100          84         100          88          98
RH                       100100 97 90 90 84 90 93 93100100 96 96 86 83 86 93 96
WIND DIR                  NE NE NE  E NE NE NE NE NE NE NE NE NE NE NE NE NE NE
WIND SPD                   1  2  1  2  3  5  9  9  9  6  3  3  3  5  9  9  9  6
WIND GUST                                18 21 21 21 19          18 21 21 20 17
CLOUDS                    OV OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%)                 89 89 92 91 88 94 94 93 95 87 87 83 75 81 80 82 84 81
VSBY                       0  1  1  1  1  1  1  2  2  3  2  6  6  6  6  6  6   
POP 12HR                     90          70          70          60          60
RAIN                                                  L  L  C  C  L  L  L  L  S
RAIN SHWRS                SC SC SC SC NM NM SC NM NM                           
TSTMS                     IS IS IS SC                                          
Obvis                     PF PF                PF PF PF PF                     
MIX HGT                   <1 <1  1  1  1  1  1  1  1  1  1  2  2  1  2  2  1  2
T WIND DIR                 E NE  E  E NE NE NE NE NE NE NE NE NE NE NE NE NE NE
T WIND SPD                 4  3  5 12 14 12 13 14 14 13 12 12 12 12 12 12 12 11
DISPERSION                VP             PR PR PR PR             PR PR PR PR   
ADI                        2  3  8 24 27  8 15 17 13 21 25 27 27  8 14 14 14 19
MAX LVORI                  9  9  6  4  4  4  5  4  5  5  5  4  4  5  4  4  5  5
STABILITY                  F  C  C  C  C  E  D  D  D  D  C  C  C  E  D  D  D  D
CEILING                     600   700   700   300     0   100   100   100   100
STA PRES                  27.88 27.93 27.97 28.02 28.03 28.09 28.10 28.10 28.07


Date           09/24Fri 09/25/26Sat 09/26/26Sun 09/27/26Mon 09/28/26
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       62      46      71      45      70      48      72      49      74
TEMP          61 56 50 47 69 58 49 47 69 59 52 49 70 60 53 50 73 62
DEWPT         53 48 46 44 45 42 43 43 44 45 46 45 48 47 48 47 55 52
RH            75 74 86 89 42 55 80 86 40 60 80 86 45 62 83 89 53 70
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B1 SC FW FW FW FW FW FW FW FW FW FW SC SC FW SC SC
POP 12HR           20       0       0       0       0       0       0       0       5
RAIN           S                                                   

$$


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