National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Sep 6 2026

VAZ018-070800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
231 PM EDT Sun Sep 6 2026

Date           09/06/26      Mon 09/07/26            Tue 09/08/26            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                 60          78          59          82          61
TEMP          74 71 67 64 63 63 71 76 77 68 64 62 60 61 74 81 79 69 65 63 62 63
DEWPT         69 64 62 60 60 60 64 63 62 60 57 56 56 57 64 64 63 61 58 57 57 58
MIN/MAX RH                   97          60          89          55          87
RH            84 79 84 87 90 90 79 64 60 76 78 81 87 87 71 56 58 76 78 81 84 84
WIND DIR       E  E  E  E  E  E  E  E SE SE  E  E  E  E  S  S  S  S  S SW SW SW
WIND SPD       5  4  4  4  4  4  4  4  5  3  1  1  1  1  3  3  4  2  3  2  2  2
CLOUDS        B1 B2 B1 SC SC SC SC SC SC FW FW CL FW B1 FW SC FW FW FW FW FW FW
CLOUDS(%)     68 84 52 34 28 41 34 44 29 11 15  5 11 53 23 35 22 22 20 16 10 14
VSBY           9  9  9  8  4  2  9 10 10 10 10 10  3  0 10 10 10 10 10 10 10   
POP 12HR                     10           5           5           0           0
Obvis                     PF PF                                                
MIX HGT        2 <1 <1 <1 <1 <1  3  4  4 <1 <1 <1 <1 <1  3  5  5 <1            
T WIND DIR     E  E NE  E  E  E  E  E SE SE SE  E  E SE  S SW SW SE            
T WIND SPD    10  6  3  9  9  8 10  8  5  9 11  4  3  6  4  3  2  8            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           29  5  2  4  4  8 37 38 30  4  5  2  2  7 19 20 14  4            
MAX LVORI      4  4  5  5  6  5  3  1  1  4  4  5  6  5  3  2  2  3            
STABILITY      C  E  E  F  F  A  A  A  A  G  G  G  G  B  A  A  A  G            
CEILING        2100  None  None  None  None  None  None  None  None  None      
STA PRES      27.79 27.83 27.88 27.93 27.93 27.99 28.03 28.07 28.04            


Date           09/09Thu 09/10/26Fri 09/11/26Sat 09/12/26Sun 09/13/26
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       87      66      87      65      83      61      83      63      86
TEMP          86 77 69 68 85 75 68 65 80 71 64 63 80 72 66 65 84 75
DEWPT         65 63 62 62 69 67 64 63 65 62 59 60 66 64 62 62 66 64
RH            50 62 78 81 59 76 87 93 60 73 84 90 62 76 87 90 55 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC FW FW FW B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC SC
POP 12HR            5       0      40      40      40      20      30      10      20
RAIN SHWRS                   SC SC    SC SC    IS IS SC          IS
TSTMS                        IS IS                   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