National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Tue Sep 15 2026

NCZ003-160800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
131 AM EDT Tue Sep 15 2026

Date           09/14/26      Tue 09/15/26            Wed 09/16/26            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                 62          79          61          87          60
TEMP                   68 65 63 70 77 79 73 67 64 61 62 75 84 87 78 69 64 61 62
DEWPT                  62 58 54 58 62 66 64 62 60 58 58 64 66 67 65 62 60 57 58
MIN/MAX RH                   80          60          89          52          89
RH                     81 78 72 66 60 64 73 84 87 90 87 69 55 52 64 78 87 87 87
WIND DIR               NE NE  E  E SE SE  N  N  N  N  N SE SE SE  N  N  N  N  N
WIND SPD                4  4  1  3  4  3  0  0  0  0  0  1  3  4  0  0  0  0  0
CLOUDS                 B1 SC B1 B1 B1 FW SC FW FW FW FW FW FW FW CL CL FW FW FW
CLOUDS(%)              56 48 52 62 54 23 28 25 20 20 17 13 10  6  0  3  6  6 10
VSBY                   10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  6  0  0
POP 12HR                      0           0           0           0           0
MIX HGT                <1 <1 <1  2  3  3 <1 <1 <1 <1 <1  2  4  4 <1            
T WIND DIR              E  E  E  E SE  S SE SE  S NW  S NW  N  E  S            
T WIND SPD             16 12  9  5  3  3  5  3  2  1  1  1  3  1  4            
DISPERSION             VP VP             VP VP VP VP             VP VP VP VP   
ADI                     7  6  7 15  8 13  3  2  1  1  1  3 15  5  2            
MAX LVORI               4  4  3  3  3  2  4  5  6  7  6  3  2  2  3            
STABILITY               F  F  C  C  D  B  G  G  G  G  A  A  B  B  G            
CEILING                    None  None  None  None  None  None  None  None      
STA PRES                  28.36 28.45 28.42 28.44 28.45 28.47 28.43            


Date           09/17Fri 09/18/26Sat 09/19/26Sun 09/20/26Mon 09/21/26
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       88      64      91      66      89      66      90      66      83
TEMP          85 79 68 66 89 81 70 67 86 80 70 68 86 80 70 67 80 76
DEWPT         62 62 58 58 65 67 63 63 67 68 65 65 69 70 66 66 69 69
RH            46 56 70 75 45 63 78 87 53 67 84 90 57 72 87 97 69 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW CL FW SC SC SC FW SC FW FW SC B1 B1 SC SC B2
POP 12HR            5       0      20       5      30      10      40      30      60
RAIN SHWRS                   IS          SC       IS SC SC IS IS NM
TSTMS                        IS          SC          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