National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Wed Sep 9 2026

NCZ003-100800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
401 PM EDT Wed Sep 9 2026

Date           09/09/26      Thu 09/10/26            Fri 09/11/26            Sat
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                 64          89          66          86          67
TEMP          84 78 70 68 66 67 80 87 88 80 73 70 68 69 81 85 81 76 71 69 67 69
DEWPT         70 68 66 64 62 63 67 66 67 67 66 65 64 65 71 72 74 72 70 69 67 69
MIN/MAX RH                   88          50          89          63         100
RH            63 71 87 87 87 87 65 50 50 65 79 84 87 87 72 65 79 87 97100100100
WIND DIR      SW SW SW SW NW SW  W SW SW  W  W NW NW NW NW SE  N NE  N  N  N  N
WIND SPD       4  2  1  1  1  1  4  5  5  2  1  1  1  1  1  2  2  1  0  0  0  0
CLOUDS        SC SC SC FW FW FW FW SC SC SC FW FW FW SC SC B2 B2 B1 B1 B2 B2 B2
CLOUDS(%)     47 35 28 16  9 15 18 33 43 26 22 17 18 33 49 82 82 63 63 71 85 85
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  3  3  6  6 10 10   
POP 12HR                      0           0           5          70          50
RAIN SHWRS                                                 NM NM SC SC       SC
TSTMS                                                      SC SC SC            
MIX HGT        3 <1 <1 <1 <1 <1  3  6  4 <1 <1 <1 <1 <1  4  6  2 <1            
T WIND DIR    SW  S SW SW  W  W  W  W SW  W NW NW NW NW  W  W SW NW            
T WIND SPD     8  6  4  5  3  4 13 10 12  4  2  3  3  3 10  6  2  2            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           31  3  2  3  2  4 56 73 57  2  1  2  2  3 52 30  5  1            
MAX LVORI      1  3  5  5  6  5  1  1  1  3  4  5  6  6  3  2  4  7            
STABILITY      B  G  G  G  G  A  B  B  B  G  G  G  G  A  A  C  C  F            
CEILING              None  None  None  None  None  None  None  3700  3700      
STA PRES            28.25 28.22 28.20 28.11 28.12 28.12 28.14 28.10            


Date           09/12Sun 09/13/26Mon 09/14/26Tue 09/15/26Wed 09/16/26
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       83      66      87      66      87      66      86      67      89
TEMP          79 76 70 68 83 78 69 68 84 79 69 68 84 79 70 69 86 80
DEWPT         74 73 69 68 73 72 67 67 71 70 67 67 72 71 68 68 72 72
RH            85 90 97100 72 82 93 97 65 74 93 97 67 77 93 97 63 77
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    OV B2 B2 B1 SC B1 SC FW FW SC FW FW SC B1 FW FW FW B1
POP 12HR           80      40      50       5      20      10      30       5      30
RAIN SHWRS    SC  O SC       SC          IS          SC          SC
TSTMS         IS SC SC       SC          IS          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