National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun May 10 2026

VAZ046-102000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 AM EDT Sun May 10 2026

Date             Sun 05/10/26            Mon 05/11/26            Tue 05/12/26
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                 83          52          64          44          72
TEMP                76 82 82 74 65 61 56 53 58 59 62 58 51 48 45 48 61 69 71 65
DEWPT               52 50 50 53 54 54 51 47 49 50 50 49 48 45 42 41 40 40 40 42
MAX/MIN RH                   33          82          64          92          32
RH                  43 33 33 48 68 78 83 80 72 72 65 72 89 89 89 77 46 35 32 43
WIND DIR             W  W  W  W NE NE NE NE NE NE  E  E  N  N  N  N NE NE  S SE
WIND SPD             5  6  8  3  2  4  8 10  8  5  4  2  1  3  4  5  5  3  3  3
WIND GUST                             18 20                                    
CLOUDS              CL CL FW SC B1 B1 SC B2 OV OV OV B2 SC FW SC FW CL FW FW FW
CLOUDS(%)            2  3  9 41 68 58 43 79 90 92 88 77 32 25 28 19  3  6  7 14
VSBY                10 10 10 10 10 10  7 10  9  7  9 10  8  6 10 10 10 10 10 10
POP 12HR                      5          20          70           5           0
RAIN SHWRS                      IS    IS SC NM SC                              
MIX HGT              5  8  8 <1 <1 <1 <1  1  2  2  2 <1 <1 <1 <1  1  5  6  6 <1
T WIND DIR           W  W  W SW  N NE NE NE  N  N  N  N  N  N NW  N  N  N NE SE
T WIND SPD          10 12 13  4  3 16  9 21 21 18 10 11  9  3  1  3 13  5  1  2
DISPERSION                   VP VP VP PR             VP VP VP VP             VP
ADI                 65108117  2  2 11  8 30 49 42 25  5  4  2  1  5 83 41  8  1
MAX LVORI            1  1  1  2  3  4  4  3  3  3  3  3  6  7  7  4  1  1  2  2
STABILITY            A  B  B  F  F  E  D  C  C  C  C  F  G  G  F  A  A  A  A  G
CEILING              None  None  5900  1700  4600  2200  None  None  None  None
STA PRES            29.28 29.24 29.30 29.36 29.45 29.41 29.43 29.45 29.50 29.45


Date          Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
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       50      74      50      71      48      75      53      84
TEMP          52 54 73 67 56 53 69 65 51 52 73 69 57 58 82 77
DEWPT         42 45 52 55 53 51 45 45 43 45 47 49 48 50 53 55
RH            69 71 48 65 90 93 42 48 74 77 40 49 72 75 37 47
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW SC B1 B2 SC FW FW FW FW FW FW FW SC FW FW
POP 12HR            0      50      70      10       0       0       5       5
RAIN SHWRS             SC NM IS                              
TSTMS                  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