National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Thu Jul 3 2025

VAZ012-040800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
832 PM EDT Thu Jul 3 2025

Date           07/03/25      Fri 07/04/25            Sat 07/05/25            Sun
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                 57          86          60          84          59
TEMP                64 61 59 64 81 84 85 75 67 63 60 64 80 83 83 74 66 62 59 63
DEWPT               59 58 57 60 61 59 60 62 61 59 57 61 63 62 62 63 61 59 58 60
MIN/MAX RH                   94          41          95          47          95
RH                  84 90 93 87 51 43 43 64 81 87 90 90 56 49 49 69 84 90 96 90
WIND DIR             N  N  N NE  E  E  E  E  E SE  E SE SE SE SE SE  S SE  S SE
WIND SPD             1  1  1  1  2  2  1  2  1  1  1  1  2  2  2  2  2  1  1  2
CLOUDS              CL CL FW FW FW FW FW SC FW FW CL CL FW FW FW FW FW FW FW FW
CLOUDS(%)            3  1  8  9  6 22 17 28 20  8  4  5  8 20 23 14 11 13 25 21
VSBY                10 10  1 10 10 10 10 10                                    
POP 12HR                      0           5           5           5           5
Obvis                     PF                                                   
MIX HGT             <1 <1 <1 <1  4  6  7 <1 <1 <1 <1 <1  5  7  8  2            
T WIND DIR          NW NW NW  N  E SE  N  S  S  S SW  S  S  S  S  S            
T WIND SPD           4  3  2  1  5  1  1  4  3  3  2  2  4  8  8 10            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  1  1 32  9  9  2  2  2  1  2 27 67 75  5            
MAX LVORI            5  7  7  6  1  2  2  3  5  5  7  6  2  1  1  3            
STABILITY            G  G  G  A  A  A  A  G  G  G  G  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.33 27.38 27.42 27.39 27.41 27.43 27.44 27.41            


Date           07/06Mon 07/07/25Tue 07/08/25Wed 07/09/25Thu 07/10/25
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       84      62      85      63      84      63      83      63      81
TEMP          83 75 65 65 84 74 65 67 83 74 65 66 82 73 64 65 80 73
DEWPT         64 65 63 65 66 67 64 66 68 67 64 65 66 67 63 65 67 66
RH            53 71 93100 55 79 97 97 61 79 97 97 58 81 97100 65 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC FW SC B1 SC FW SC B1 SC SC SC B1 B1 B1 B1 B2
POP 12HR           20      10      40      20      50      30      50      40      70
RAIN SHWRS       IS       IS SC IS    IS SC SC    IS SC SC IS SC NM
TSTMS            IS       IS SC IS    IS SC IS    IS 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