National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sat May 2 2026

VAZ046-030800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
731 PM EDT Sat May 2 2026

Date           05/02/26      Sun 05/03/26            Mon 05/04/26            Tue
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                 39          66          43          77          55
TEMP             58 52 44 40 43 55 61 65 56 50 47 44 49 65 73 76 70 62 59 56 59
DEWPT            33 31 30 30 31 28 28 27 30 31 32 33 35 42 44 46 48 48 47 47 49
MIN/MAX RH                   67          24          64          34          74
RH               39 44 57 67 62 35 28 24 37 48 56 65 58 43 35 34 45 60 64 72 69
WIND DIR          N  N NW  W NW NW  W  W  W SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD          3  4  2  2  3  5  8  6  1  3  3  4  5  9 11 10  6  8  9  9  9
WIND GUST        13    13 13 13                                  17 18 19 19   
CLOUDS           B1 SC CL CL CL CL CL CL FW FW SC SC SC SC FW FW SC FW SC SC FW
CLOUDS(%)        54 41  5  5  3  5  4  4  9 16 42 44 31 28 24 21 36 19 44 31 21
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0           0          10          10
MIX HGT           3  2 <1 <1  2  6  7  7 <1 <1 <1 <1 <1  4  6  6 <1            
T WIND DIR        N NW NW NW  N NW  W  W SW  S  S SW SW  W  W  W  S            
T WIND SPD       13  6  4  4 17 12 12 11  3  3  4  4  4 20 19 17  6            
DISPERSION       VP VP VP VP             VP VP VP VP             PR PR PR PR   
ADI               9  5  2  2 46 79 91 87  2  2  2  3  4101 85116  3            
MAX LVORI         2  2  2  3  1  1  1  1  2  2  3  3  3  1  1  1  2            
STABILITY         E  E  F  F  A  B  B  B  G  G  F  E  A  B  C  B  F            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            29.23 29.32 29.38 29.32 29.31 29.31 29.30 29.21            


Date           05/05Wed 05/06/26Thu 05/07/26Fri 05/08/26Sat 05/09/26
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       82      61      79      61      76      45      69      48      74
TEMP          81 76 66 63 73 74 67 62 70 65 49 49 66 63 53 52 71 68
DEWPT         49 47 51 55 60 58 59 60 61 49 40 39 38 41 42 45 47 50
RH            33 36 58 75 64 57 75 93 73 56 71 68 36 44 66 77 42 52
WIND SPD          <15     <15     15>     <15     15>     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B2 B2 B2 B2 B2 B2 SC FW FW SC SC SC SC SC
POP 12HR            0      20      40      70      80      10      10      10      20
RAIN SHWRS             IS SC SC SC NM  O NM                      IS
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