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

VAZ024-230800-
RAWS 441631
37.63N  79.51W Elev. 865 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          72          55          64          52
TEMP                      64 65 70 71 69 65 62 61 58 57 60 62 63 58 56 56 54 52
DEWPT                     64 65 69 67 64 62 61 60 58 57 60 61 60 58 56 56 54 52
MIN/MAX RH                  100          84         100          91         100
RH                       100100 97 87 84 90 97 97100100100 97 90100100100100100
WIND DIR                   N NE NE NE NE  N NE NE  N  N NE NE NE NE NE NE NE NE
WIND SPD                   0  1  1  4  5  5  5  4  5  6  5  5  5  6  5  4  5  5
WIND GUST                                17 19 20 21 21 16 16 16 19 23 21 23 21
CLOUDS                    B2 B2 OV OV OV OV OV OV OV B2 B2 OV OV OV B2 B2 B2 B2
CLOUDS(%)                 79 78 91 89 91 96 97 96 91 85 84 89 88 92 86 84 75 73
VSBY                       2  1  2  3  3  3  1  3  4  4  3  6  6  6  6  6  6   
POP 12HR                     90          80          80          70          60
RAIN                                                  L  L  C  C  L  L  C  C  C
RAIN SHWRS                SC SC SC SC NM  O NM  O 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  2  2  2  1 <1  1  1  1
T WIND DIR                 E  E  E NE NE  N  N NE NE NE NE NE NE NE NE NE NE  N
T WIND SPD                 3  3  6 10 14 12 12 13 13 14 11 12 12 12 12 12 13 12
DISPERSION                VP             PR PR VP PR             PR PR VP PR   
ADI                        2  3  9 16 23  8  8  9  9 22 19 22 22  8  8  8  9 20
MAX LVORI                 10  9  6  4  4  5  6  6  8  5  5  5  4  8  8  8  8  5
STABILITY                  F  C  C  D  D  E  E  E  E  D  D  D  D  E  E  E  E  D
CEILING                     300   300  1100   500   500  1000  1200  1300   800
STA PRES                  28.54 28.59 28.63 28.68 28.69 28.75 28.76 28.76 28.74


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       65      46      73      46      75      48      77      49      77
TEMP          64 59 50 47 71 62 50 48 73 63 52 50 74 64 54 50 75 65
DEWPT         55 53 49 46 49 48 45 44 48 50 48 47 51 52 50 49 57 59
RH            73 80 96 96 46 60 83 86 41 62 86 89 44 65 86 96 54 81
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 FW SC SC FW SC
POP 12HR           30       0       0       0       0       0       0       0       0
RAIN           C                                                   

$$


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