National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 AM EDT Sat Sep 5 2026

VAZ046-052000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
831 AM EDT Sat Sep 5 2026

Date             Sat 09/05/26            Sun 09/06/26            Mon 09/07/26
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                 89          66          80          61          83
TEMP                84 84 87 77 72 70 68 67 73 77 79 74 68 64 62 63 75 80 82 75
DEWPT               66 65 67 72 70 70 68 67 68 67 66 65 64 63 62 63 65 62 62 62
MAX/MIN RH                   43         100          64         100          50
RH                  55 53 52 85 93100100100 84 71 64 74 87 97100100 71 54 51 64
WIND DIR             N  N  N NE NE NE NE NE NE NE NE NE NE NE NE NE NE  E  E  E
WIND SPD             4  5  6  4  3  3  4  6  9  9  8  4  4  3  4  5  6  6  5  4
CLOUDS              B1 B2 B2 B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC SC SC FW SC SC FW
CLOUDS(%)           69 70 73 64 73 57 55 63 61 69 56 36 36 35 27 32 21 30 27 18
VSBY                10 10 10 10  8  6  3  6 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     40          60          40           5           5
RAIN SHWRS          IS SC SC SC NM SC SC    SC SC SC                           
TSTMS               IS SC SC SC SC                                             
MIX HGT              3  5  4 <1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  4  6  6 <1
T WIND DIR          NW  W  W  N NE  N  N NE NE NE NE NE NE  N  N NE  E  E  E  E
T WIND SPD           4 10 13 14 11  5  4 12 11 11 11  5  4  3  4 10 13 11  6  3
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 14 62 62 10  5  3  3 10 32 42 44  3  2  2  2 10 62 73 50  2
MAX LVORI            2  1  1  4  7  9  9  8  3  1  1  3  6  8  9  7  3  1  1  3
STABILITY            C  B  B  E  F  F  E  C  C  C  C  F  F  G  F  A  B  B  A  F
CEILING              None  5100  3300   300   300  None  None  None  None  None
STA PRES            29.18 29.10 29.19 29.21 29.27 29.27 29.34 29.40 29.46 29.46


Date          Tue 09/08/26Wed 09/09/26Thu 09/10/26Fri 09/11/26
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       59      85      61      90      69      94      65      87
TEMP          62 62 82 77 65 63 87 82 72 70 92 84 70 66 84 78
DEWPT         61 61 61 60 58 60 64 63 62 63 67 65 64 63 62 61
RH            97 97 49 56 78 90 46 53 71 78 44 53 81 90 48 56
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW SC FW FW FW FW FW FW SC SC FW SC
POP 12HR            0       0       0       0       0      10      20      20
RAIN SHWRS                                        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