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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Mon Sep 21 2026

VAZ024-220800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
131 AM EDT Mon Sep 21 2026

Date           09/20/26      Mon 09/21/26            Tue 09/22/26            Wed
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                 66          82          64          75          55
TEMP                   70 68 68 76 80 81 75 71 68 67 65 71 73 72 66 63 61 58 56
DEWPT                  67 66 66 69 69 70 69 67 67 66 65 70 69 68 66 63 61 58 56
MIN/MAX RH                   94          68         100          85         100
RH                     90 93 93 79 69 69 82 87 97 97100 97 87 87100100100100100
WIND DIR                N  N NE  E SE SE  E NE NE NE  N  E NE NE NE NE NE NE NE
WIND SPD                0  0  1  2  3  2  2  2  1  1  1  2  3  4  5  5  4  5  5
WIND GUST                                                        17 19 20 21 21
CLOUDS                 SC B1 B2 B2 B2 B2 B2 OV OV B2 B2 OV B2 OV OV OV B2 B2 B2
CLOUDS(%)              28 52 77 78 75 74 84 89 97 87 84 88 83 94 96 90 85 78 86
VSBY                    8  2  2  9  9  9  5  3  2  2  3  4  3  3  6  6  3  3  6
POP 12HR                      5          50          90          90          80
RAIN                                                              D  D  L  L  D
RAIN SHWRS                         SC SC  O NM  O SC SC NM NM NM               
TSTMS                              IS SC SC IS             IS                  
Obvis                     PF PF                                                
MIX HGT                <1 <1 <1  2  3  2 <1 <1 <1 <1 <1  1  2  2  1            
T WIND DIR             NW  N  N  E  E  E NE NE NE NE  N NE NE NE NE            
T WIND SPD              2  2  3  5  6 10 10  8  5  6  9  9 12 13 12            
DISPERSION             VP VP             VP VP VP VP             PR PR VP PR   
ADI                     1  1  3 13 20 22  5  7  3  3  7 15 25 24 14            
MAX LVORI               7  8  9  4  3  3  5  6  6  8  6  4  3  4  5            
STABILITY               G  G  A  C  C  C  F  D  F  F  C  C  D  D  D            
CEILING                   12400  1300  1700   300   300  1100  1800  1100      
STA PRES                  28.46 28.51 28.50 28.57 28.57 28.60 28.62            


Date           09/23Thu 09/24/26Fri 09/25/26Sat 09/26/26Sun 09/27/26
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       65      52      66      48      71      47      75      48      77
TEMP          63 59 56 52 63 59 52 49 69 61 51 48 72 63 53 49 74 65
DEWPT         61 59 56 52 57 55 51 48 51 50 47 45 50 51 49 48 54 55
RH            93100100100 81 87 96 96 53 67 86 89 46 65 86 96 50 70
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 OV B2 B2 B2 B1 SC SC SC SC FW FW FW SC SC FW SC
POP 12HR           80      70      30       5       5       5       5       0       0
RAIN           D  D  L  C                                          
RAIN SHWRS                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