National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Sep 25 2026

VAZ012-260800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
801 PM EDT Fri Sep 25 2026

Date           09/25/26      Sat 09/26/26            Sun 09/27/26            Mon
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                 38          70          41          65          45
TEMP                46 42 39 39 59 67 68 54 48 45 43 46 58 63 63 58 50 48 46 47
DEWPT               42 39 37 38 45 46 48 47 46 44 42 43 49 48 49 48 47 46 45 46
MIN/MAX RH                   97          44         100          58         100
RH                  86 89 92 96 60 47 49 77 93 96 96 89 72 58 60 69 89 93 96 96
WIND DIR             N  N  N  N  N  N  N  N NW NW NW NW NW NW NW NW NW  W  W  W
WIND SPD             2  2  2  2  2  3  3  3  2  2  2  3  3  4  4  3  2  2  2  2
CLOUDS              FW FW FW CL FW FW CL CL FW CL FW FW FW FW SC FW SC SC SC SC
CLOUDS(%)           11  6  6  4 10  6  5  2 15  4 11 22 22 19 30 20 42 35 33 41
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      0           0           0           0           5
MIX HGT             <1 <1 <1 <1  2  3  3 <1 <1 <1 <1 <1  2  3  4 <1            
T WIND DIR          NW NW NW NW NW  N NW NW NW NW NW NW NW NW NW NW            
T WIND SPD           8  6  6  8 13 18 19  9  8  6  6 10 16 24 25 11            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  4  3  3  8 28 64 69  4  4  3  3 11 44 90109  5            
MAX LVORI            5  6  6  6  2  1  1  4  6  8  9  5  3  1  1  3            
STABILITY            G  G  G  B  B  B  B  G  G  G  G  B  B  B  B  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.30 27.25 27.25 27.22 27.23 27.18 27.17 27.13            


Date           09/28Tue 09/29/26Wed 09/30/26Thu 10/01/26Fri 10/02/26
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       68      46      78      49      81      53      81      56      81
TEMP          66 61 49 48 71 64 52 50 74 68 56 55 75 69 59 58 75 69
DEWPT         56 56 49 48 57 57 51 50 59 60 54 55 63 62 58 57 64 64
RH            70 84100100 61 78 96100 59 76 93100 66 78 96 96 69 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 SC FW FW FW FW CL FW FW SC SC SC SC SC SC B1 B1
POP 12HR            0       0       0       0       0       0      10      10      30
RAIN SHWRS                                                    IS 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