National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 PM EDT Sat Sep 5 2026

VAZ024-060800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
1031 PM EDT Sat Sep 5 2026

Date           09/05/26      Sun 09/06/26            Mon 09/07/26            Tue
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                 65          81          58          83          57
TEMP                70 68 67 66 72 77 78 72 67 63 60 60 76 82 80 72 65 60 57 59
DEWPT               69 68 67 66 68 67 65 63 62 61 59 60 63 62 61 61 59 59 57 58
MIN/MAX RH                  100          62         100          49         100
RH                  97100100100 87 71 64 73 84 93 96100 64 51 52 68 81 96100 96
WIND DIR             N  N  N NE NE  E  E  E NE NE  N  N  E  E  E  E  N  N  N  N
WIND SPD             0  0  1  2  3  4  3  2  1  1  1  1  2  4  4  1  0  0  0  0
CLOUDS              B1 B2 B2 B1 B2 B2 B1 SC B1 SC SC FW FW SC FW FW FW FW FW FW
CLOUDS(%)           62 71 72 69 87 75 69 44 51 35 37 20 25 38 20 14 16 15 11 15
VSBY                10  6  2  3  8  7 10 10  6  6  5  6 10 10 10 10 10 10 10   
POP 12HR                     60          40           0           0           0
RAIN SHWRS          SC SC SC SC SC                                             
TSTMS               IS                                                         
Obvis                  PF PF PF                                                
MIX HGT             <1 <1 <1 <1  2  3  2 <1 <1 <1 <1 <1  4  6  6 <1            
T WIND DIR          NE NE NE NE NE NE NE NE NE  E  E NE  E  E  E  E            
T WIND SPD           5  2  4  8 11 11 12  6  4  6  6  5 11  5  4  4            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  3  1  2 10 24 36 33  3  2  3  3  6 59 40 32  2            
MAX LVORI            9 10  9  7  4  3  1  3  5  6  9  9  1  1  1  3            
STABILITY            F  F  F  B  B  C  B  F  F  G  G  A  A  A  A  G            
CEILING                    1500  1100  2200  None  None  None  None  None      
STA PRES                  28.41 28.47 28.48 28.53 28.58 28.64 28.63            


Date           09/08Wed 09/09/26Thu 09/10/26Fri 09/11/26Sat 09/12/26
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       86      58      91      65      93      63      86      57      85
TEMP          83 75 63 61 89 79 68 67 91 81 68 64 83 75 62 59 83 75
DEWPT         61 60 58 58 64 63 62 62 67 65 63 62 62 60 58 57 61 61
RH            47 60 84 90 44 58 81 84 45 58 84 93 49 60 87 93 47 62
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC FW FW FW FW FW FW FW SC SC B1 SC SC FW SC SC SC
POP 12HR            0       0       0       0      10      20      20      10      10
RAIN SHWRS                                  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