National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Fri Jul 24 2026

NCZ006-250800-
RAWS 310801
36.37N  79.29W Elev. 580 ft
401 PM EDT Fri Jul 24 2026

Date           07/24/26      Sat 07/25/26            Sun 07/26/26            Mon
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                 64          76          62          85          64
TEMP          75 73 70 67 66 66 70 73 75 74 68 66 65 66 77 83 84 80 71 68 65 68
DEWPT         67 68 67 67 66 66 70 71 71 70 68 66 65 66 71 70 69 71 69 68 65 68
MIN/MAX RH                  100          84         100          59         100
RH            76 84 90100100100100 93 87 87100100100100 82 65 61 74 93100100100
WIND DIR       E  N  N  N NE NE NE NE NE  N  N  N  N  N NW  N NW  N  N  N  N  N
WIND SPD       3  0  0  0  1  2  4  4  3  0  0  0  0  0  2  3  1  0  0  0  0  0
CLOUDS        OV OV B2 B2 OV B2 OV B1 B2 SC FW SC SC B1 FW FW FW FW FW FW FW FW
CLOUDS(%)     88 94 86 86 94 86 90 67 80 50 24 31 44 54 24 21 19 25 25 16 19 21
VSBY          10  7  6  1  1  1  7  7 10 10  9  8  2  2  6  7  7  7  7 10 10   
POP 12HR                     90          60           5           5          20
RAIN              C  L  D  D  L                                                
RAIN SHWRS                      SC IS                            IS IS         
TSTMS                              IS                            IS IS         
Obvis                  PF PF PF                                                
MIX HGT        2 <1 <1  1 <1  1  1  2  2 <1 <1 <1 <1 <1  3  5  6 <1            
T WIND DIR     E  E NE  E  E NE NE NE  N NE NW  W  W  W  N  N NW  W            
T WIND SPD     9  6  4  5  5  6  9  8  3  4  1  2  2  1  9  5  3  2            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           29  3  2  3  3 11 16 19 10  2  1  1  1  1 34 35 24  1            
MAX LVORI      3  5  6  9  9  7  5  5  5  6 10 10 10 10  3  1  2  3            
STABILITY      B  F  F  F  F  B  C  C  B  F  G  G  F  B  A  A  A  G            
CEILING              2200  1200   700  1300  None  None  None  None  None      
STA PRES            29.45 29.42 29.45 29.40 29.37 29.34 29.31 29.25            


Date           07/27Tue 07/28/26Wed 07/29/26Thu 07/30/26Fri 07/31/26
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       88      69      90      68      89      66      86      66      87
TEMP          86 82 73 72 88 84 73 71 87 82 71 69 84 81 70 70 85 81
DEWPT         71 72 69 71 75 75 72 71 72 72 67 68 69 71 67 69 71 71
RH            61 72 87 97 66 74 97100 61 72 87 97 61 72 90 97 63 72
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC B1 B1 B1 FW FW FW SC FW FW SC FW FW SC SC
POP 12HR            5      10      40      50      20      10      10      10      20
RAIN SHWRS                   SC SC IS    IS                      IS
TSTMS                        SC SC       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