National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 PM EDT Sun Sep 27 2026

VAZ018-280800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
931 PM EDT Sun Sep 27 2026

Date           09/27/26      Mon 09/28/26            Tue 09/29/26            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                 53          72          55          79          55
TEMP                56 56 55 54 64 71 71 60 58 57 55 55 70 78 77 64 59 58 57 57
DEWPT               51 50 50 50 53 55 56 54 54 54 53 53 58 59 58 57 57 56 55 55
MIN/MAX RH                   86          57          91          51          97
RH                  83 80 83 86 67 57 59 81 86 90 93 93 66 52 52 78 93 93 93 93
WIND DIR            NW NW NW NW NW NW NW NW NW NW NW NW NW SW SW SE  N  N  N  N
WIND SPD             8  6  8  8  6  6  6  4  3  2  2  2  1  1  1  1  0  0  0  0
WIND GUST           19    18 19 17       16                                    
CLOUDS              SC B2 OV B2 OV B2 B2 B1 SC FW FW FW FW SC SC FW FW FW FW FW
CLOUDS(%)           50 85 92 86 89 78 78 60 36 24 17 24 25 41 29 25 16  7  6 14
VSBY                10 10 10  8 10 10 10  9  7  6  7  7  7  7  7  7  7  7  7  7
POP 12HR                      5           5           0           0           0
MIX HGT             <1 <1 <1 <1  2  3  3 <1 <1 <1 <1 <1  3  5  5 <1            
T WIND DIR          NW NW NW NW NW NW NW NW NW NW NW NW NW  W NW  N            
T WIND SPD          12  6  6  8 14 12 11 11  8  4  4  5  1  2  3  0            
DISPERSION          PR PR PR             VP VP VP VP             VP VP VP VP   
ADI                  8  3  6 10 27 47 38  5  4  2  2  6  5 13 20  0            
MAX LVORI            3  4  4  4  3  1  1  4  6  6  6  5  3  2  2  4            
STABILITY            E  F  D  D  D  B  B  F  G  G  G  B  A  A  A  G            
CEILING                    3600  2500  2200  None  None  None  None  None      
STA PRES                  27.67 27.73 27.73 27.80 27.81 27.87 27.86            


Date           09/30Thu 10/01/26Fri 10/02/26Sat 10/03/26Sun 10/04/26
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       84      57      86      61      84      59      72      54      68
TEMP          81 69 61 58 84 72 64 62 81 71 64 60 70 62 57 55 66 60
DEWPT         57 58 56 56 60 58 57 58 64 62 60 58 61 57 54 54 61 58
RH            44 68 84 93 44 61 78 87 56 73 87 93 73 84 90 96 84 93
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW SC FW SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1
POP 12HR            0       0       0       0      20      30      40      50      50
RAIN SHWRS                               IS IS SC SC SC SC SC SC 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