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 Wed Jul 29 2026

VAZ024-292000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 AM EDT Wed Jul 29 2026

Date             Wed 07/29/26            Thu 07/30/26            Fri 07/31/26
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                 87          61          88          61          90
TEMP                81 86 86 77 68 65 61 64 78 86 88 80 70 65 62 65 81 88 89 82
DEWPT               65 63 62 61 62 61 60 60 61 60 60 60 61 60 59 61 64 62 61 64
MAX/MIN RH                   45          95          39          93          38
RH                  58 46 45 58 81 87 97 87 56 42 39 51 73 84 90 87 56 42 39 55
WIND DIR            NW NW NW NW  W  W  W  W NW NW NW NW NW NW NW  N  N SW  S SE
WIND SPD             5  6  8  6  2  2  2  2  3  4  4  4  2  1  1  0  0  2  2  1
WIND GUST                 19 21                      17                        
CLOUDS              FW SC FW CL FW FW CL CL CL FW CL FW CL CL CL CL CL FW FW FW
CLOUDS(%)            8 27  7  3 13  7  4  4  2 10  2  6  5  1  3  4  4 15 12 22
VSBY                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           0           0
MIX HGT              4  5  5 <1 <1 <1 <1 <1  3  6  6 <1 <1 <1 <1 <1  5  7  7 <1
T WIND DIR          NW NW NW NW NW NW NW NW  N NW NW NW NW NW NW NW NW NW NW NE
T WIND SPD          16 13 17 14  9  4  4  9  8  8 10 10  6  3  3  3  3  3  4  4
DISPERSION                   PR VP VP VP             VP VP VP VP             VP
ADI                 80 85 97  7  4  2  2  9 36 62 81  5  3  2  2  3 20 28 36  2
MAX LVORI            1  1  1  3  4  6  6  5  1  1  1  2  3  5  7  6  2  2  1  3
STABILITY            A  B  B  F  G  G  G  A  A  A  A  F  G  G  G  A  A  A  A  G
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.28 28.30 28.36 28.38 28.41 28.39 28.46 28.47 28.48 28.44


Date          Sat 08/01/26Sun 08/02/26Mon 08/03/26Tue 08/04/26
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       66      88      67      85      68      86      67      88
TEMP          68 69 88 80 71 69 83 79 71 69 84 79 70 70 86 80
DEWPT         63 65 66 67 68 69 71 71 70 69 72 72 70 70 72 72
RH            84 87 48 65 90100 67 77 97100 67 79100100 63 77
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR            0      30      50      70      60      60      30      50
RAIN SHWRS             SC SC SC SC NM NM SC SC NM SC       SC
TSTMS                  SC IS    IS SC IS       SC 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