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 PM EDT Sun Sep 13 2026

VAZ018-132000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
131 PM EDT Sun Sep 13 2026

Date             Sun 09/13/26            Mon 09/14/26            Tue 09/15/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 85          66          83          56          81
TEMP                   83 83 73 69 68 67 67 77 83 81 67 62 60 57 57 70 79 81 70
DEWPT                  70 69 66 65 64 64 65 64 61 55 54 53 51 49 49 54 60 61 58
MAX/MIN RH                   62          93          41          77          50
RH                     65 63 79 87 87 90 93 64 47 41 63 72 72 75 75 57 52 51 66
WIND DIR               NW NW NW NW NW NW NW  N  N  N  N NE  E  E SE SE SE SE SE
WIND SPD                5  6  5  3  3  4  4  4  5  5  3  2  2  1  1  3  3  4  2
WIND GUST                 17 18       14 17 16                                 
CLOUDS                 FW FW FW FW SC FW SC FW FW FW FW FW FW FW FW FW FW FW FW
CLOUDS(%)              22 25 12 20 46 20 26  7  6 10 19 22 18  9 22 14 12  9  7
VSBY                   10 10 10 10  8  5  2  9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      5           0           0           0           0
MIX HGT                 4  4 <1 <1 <1 <1  1  4  5  5 <1 <1 <1 <1 <1  2  3  3 <1
T WIND DIR             NW NW NW NW  W NW NW  N  N  N  N  N  E  E  E SE  S SE SE
T WIND SPD             19 17 14  9  4 13 12 17 12 10  4  4  3  3  2  5  3  3  3
DISPERSION                   PR VP VP VP             VP VP VP VP             VP
ADI                    96 83  7  4  2  6 19 76 78 57  2  2  2  2  2 18 14 15  2
MAX LVORI               1  1  4  5  6  5  4  1  1  1  3  3  3  4  4  2  2  2  3
STABILITY               B  B  F  G  F  F  B  B  B  B  G  G  G  G  A  B  B  B  G
CEILING                    None  None  None  None  None  None  None  None  None
STA PRES                  27.76 27.81 27.83 27.92 27.93 28.00 28.04 28.11 28.07


Date          Wed 09/16/26Thu 09/17/26Fri 09/18/26Sat 09/19/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       57      88      62      89      65      88      65      84
TEMP          61 59 87 73 66 64 88 73 68 66 87 73 69 66 83 71
DEWPT         54 54 64 62 59 58 66 63 61 61 67 66 64 63 67 65
RH            78 83 46 68 78 81 48 71 78 84 52 79 84 90 59 81
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW CL CL FW FW FW FW B1 FW FW SC B1 SC SC SC B1
POP 12HR            0       5       0      30       5      40      20      30
RAIN SHWRS                         SC          SC IS       SC
TSTMS                              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