National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Wed Jul 29 2026

NCZ003-300800-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
231 AM EDT Wed Jul 29 2026

Date           07/28/26      Wed 07/29/26            Thu 07/30/26            Fri
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                 67          83          63          82          61
TEMP                      68 69 77 81 81 74 68 65 63 65 73 80 82 76 68 64 62 64
DEWPT                     65 67 67 65 64 63 61 61 60 61 61 61 62 63 59 58 58 61
MIN/MAX RH                   92          55          90          50          92
RH                        90 93 71 58 56 69 78 87 90 87 66 52 51 64 73 81 87 90
WIND DIR                  NW NW NW NW NW NW NW  N NW NW  N NW NW NW  N NW  N  N
WIND SPD                   8  5  6  8  9  8  6  6  6  5  4  4  4  5  6  5  4  4
CLOUDS                    FW FW CL CL CL CL CL CL CL CL CL FW CL CL CL CL CL CL
CLOUDS(%)                 11  8  2  4  2  1  4  3  3  1  4  9  2  1  2  3  2  2
VSBY                       9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     10           0           0           0           0
MIX HGT                   <1  1  4  5  5 <1 <1 <1 <1  1  4  6  6 <1 <1 <1 <1 <1
T WIND DIR                NW NW NW NW NW NW  N NW NW NW NW NW NW NW  N  N NW  N
T WIND SPD                 6 11 16 14 14 10  5  4  4  6  9 10 10  5  6  4  4  4
DISPERSION                PR             PR PR PR PR             PR PR PR VP   
ADI                        5 15 70 93 88  7  3  2  2  9 44 71 79  3  3  2  2  4
MAX LVORI                  6  5  3  1  1  3  4  5  6  5  1  1  1  3  3  5  6  6
STABILITY                  E  A  B  B  B  E  F  F  F  A  A  A  A  F  F  F  F  A
CEILING                    None  None  None  None  None  None  None  None  None
STA PRES                  28.67 28.73 28.74 28.81 28.84 28.87 28.84 28.90 28.91


Date           07/31Sat 08/01/26Sun 08/02/26Mon 08/03/26Tue 08/04/26
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       84      66      82      67      78      67      79      68      81
TEMP          81 77 68 68 79 76 70 69 76 73 70 69 75 74 70 70 79 76
DEWPT         64 66 63 65 70 69 69 69 73 71 70 69 73 73 70 70 73 73
RH            56 69 84 90 74 79 97100 90 93100100 94 97100100 82 90
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW SC SC B1 B2 B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR            0       0      30      50      70      70      70      30      40
RAIN SHWRS                   SC SC SC SC NM NM SC SC NM SC    IS SC
TSTMS                        SC IS    IS SC SC       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