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 Sun Jul 26 2026

VAZ018-262000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
801 AM EDT Sun Jul 26 2026

Date             Sun 07/26/26            Mon 07/27/26            Tue 07/28/26
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                 83          63          84          68          85
TEMP                75 80 81 74 69 67 64 68 77 82 84 77 71 69 68 70 79 84 82 74
DEWPT               63 64 64 64 64 63 62 64 66 65 64 65 65 65 66 67 72 73 72 69
MAX/MIN RH                   55          95          52          93          69
RH                  66 58 56 71 84 87 93 87 69 56 51 67 81 87 93 90 79 70 72 84
WIND DIR            NW  W NW NW NW NW NW NW NW NW NW NW  W  W  W  W  W  W  W  W
WIND SPD             3  3  4  4  4  2  3  3  4  4  5  4  4  3  4  6  8  9  9  8
WIND GUST                                                     18 20 24 27 26 26
CLOUDS              SC SC SC SC SC FW FW B1 FW B1 SC SC SC B2 B2 OV OV B2 B2 B1
CLOUDS(%)           45 41 40 33 34 25 22 56 22 59 43 43 43 80 80100100 86 86 54
VSBY                10 10 10 10 10 10 10 10 10 10 10  7  7  6  6  6  6  6  6  7
POP 12HR                     20          10           5          60          80
RAIN SHWRS                                           IS IS NM NM  O  O NM NM SC
TSTMS                                                IS       IS IS SC NM NM IS
MIX HGT              3  5  5 <1 <1 <1 <1 <1  3  6  5 <1 <1 <1 <1 <1  2  3  3  1
T WIND DIR           N NW  W NW  N NW NW NW  N NW NW NW NW  W  W  W  W SW SW  W
T WIND SPD           4  6  5 10  2  2  2  2  8  8 14 10 10  3  2  3 12 10 12  8
DISPERSION                   VP VP VP VP             VP VP VP VP             PR
ADI                 18 44 33  5  1  1  1  2 35 36100  7  7  2  2  4 26 35 42  7
MAX LVORI            3  1  1  3  5  6  7  6  3  1  1  3  4  5  7  6  3  3  3  4
STABILITY            A  A  A  F  F  G  G  B  A  C  A  E  E  F  E  D  D  C  C  D
CEILING              None  None  None  None  None  None  None 20200  1000  1400
STA PRES            27.75 27.67 27.68 27.68 27.69 27.67 27.65 27.62 27.56  27.5


Date          Wed 07/29/26Thu 07/30/26Fri 07/31/26Sat 08/01/26
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      82      61      81      61      83      64      83
TEMP          69 68 81 74 65 64 80 72 63 64 81 74 66 67 81 74
DEWPT         66 65 65 62 60 60 62 61 59 60 63 64 61 63 66 66
RH            90 90 58 66 84 87 54 68 87 87 54 71 84 87 60 76
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC SC FW FW FW FW FW FW SC SC SC B1 B1 B2
POP 12HR           30      10       5       5       0      10      10      40
RAIN SHWRS    SC                                        IS SC
TSTMS         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