National Weather Service United States Department of Commerce

Severe Storms Possible Tonight Through Tuesday Night

Thunderstorms are expected across portions of the area late tonight into Tuesday, and then Tuesday afternoon into Tuesday evening. Visit this link for details on what is expected. Read More >

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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Jul 27 2026

VAZ018-272000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
801 AM EDT Mon Jul 27 2026

Date             Mon 07/27/26            Tue 07/28/26            Wed 07/29/26
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                 88          67          85          65          81
TEMP                79 85 87 79 71 69 69 70 78 82 82 74 71 69 67 66 76 80 79 71
DEWPT               68 66 64 66 63 63 64 66 72 72 71 68 66 64 63 63 64 63 63 60
MAX/MIN RH                   46          92          67          90          55
RH                  69 53 46 64 76 81 84 87 82 72 69 82 84 84 87 90 66 56 58 68
WIND DIR             N  N NW NW NW  W  W  W  W  W  W NW NW NW NW NW NW NW NW NW
WIND SPD             3  3  4  2  1  2  3  6  9  9 10 10  9  8  8 10 10 10 10  9
WIND GUST                             14 21 26 26 28 28 29 28 29 32 29 28 28 27
CLOUDS              SC SC SC SC FW SC B2 B2 B1 B2 B1 SC SC SC SC SC FW FW FW FW
CLOUDS(%)           30 32 39 34 21 32 71 83 62 86 61 31 34 32 35 27 22 24 22 15
VSBY                10 10 10 10 10  8  8  7  8 10 10 10 10 10  7 10 10 10 10 10
POP 12HR                      0          20          80           5           0
RAIN SHWRS                               SC SC  O SC                           
TSTMS                                       SC SC SC                           
MIX HGT              3  5  6 <1 <1 <1 <1 <1  3  3  3  2 <1 <1 <1  2  4  5  6  2
T WIND DIR           N  N  W  W  W  W  W  W  W SW  W NW  N NW NW NW  N NW NW NW
T WIND SPD           8  5  6  6  3  2  3 13 11 11 10 14 12  8 11 18 20 17 14 17
DISPERSION                   VP VP VP VP             FR PR PR PR             PR
ADI                 33 38 47  3  2  1  2 11 34 40 30 10  8  5  8 44 91101 96 12
MAX LVORI            3  1  1  3  4  5  5  5  3  3  3  4  4  5  5  4  1  1  1  3
STABILITY            A  A  A  G  G  G  F  C  C  C  C  E  E  E  E  B  B  B  B  E
CEILING              None  None  None     0     0     0  None  None  None  None
STA PRES            27.69 27.64 27.61 27.57 27.57 27.48 27.51 27.53 27.59 27.59


Date          Thu 07/30/26Fri 07/31/26Sat 08/01/26Sun 08/02/26
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       61      82      61      84      64      83      66      78
TEMP          64 64 81 74 64 63 83 75 66 66 82 74 68 67 78 71
DEWPT         59 58 62 60 58 59 61 62 60 62 64 65 64 65 68 67
RH            84 81 53 62 81 87 47 64 81 87 55 74 87 93 71 87
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW FW SC SC B1 B2 B2 B1 B1 B1 B1
POP 12HR            0       0       0       0       5      30      50      50
RAIN SHWRS                                     SC SC SC SC SC
TSTMS                                          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