National Weather Service United States Department of Commerce

Severe Storms Possible Tuesday

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
401 PM EDT Mon Jul 27 2026

VAZ018-280800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
401 PM EDT Mon Jul 27 2026

Date           07/27/26      Tue 07/28/26            Wed 07/29/26            Thu
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          85          65          80          61
TEMP          87 78 71 68 69 70 77 82 82 74 70 68 66 66 75 80 77 70 66 64 62 63
DEWPT         64 66 63 63 64 66 72 72 71 68 65 64 63 62 64 63 62 61 59 59 57 58
MIN/MAX RH                   91          68          89          56          86
RH            46 67 76 84 84 87 85 72 69 82 84 87 90 87 69 56 60 73 78 84 84 84
WIND DIR      NW NW  W  W  W  W  W  W  W NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD       2  2  1  2  4  6  8  9 10  9  8  6  8 10 11 10 10 10  8  8  9  9
WIND GUST                 16 23 25 27 28 27 27 25 28 32 29 29 28 28 26 27 29 28
CLOUDS        FW SC B1 SC B1 OV B2 B2 B2 SC SC SC FW SC FW FW FW FW FW FW FW FW
CLOUDS(%)     21 41 56 31 51 90 85 75 70 36 28 28 22 49 19 19 20 16 18 21 25 22
VSBY          10 10 10 10 10  5  5  6  7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     30          60          10           0           0
RAIN SHWRS                   SC SC NM SC                                       
TSTMS                           IS SC SC                                       
MIX HGT        5 <1 <1 <1 <1 <1  2  3  3  1 <1 <1 <1  2  4  5  5  2            
T WIND DIR     W SW  W  W NW SW  W  W  W NW NW NW NW NW NW NW NW NW            
T WIND SPD     4  3  2  3  6 13 18 21 18 14  9  6 11 14 21 20 20 18            
DISPERSION       VP VP VP VP             PR PR PR PR             FR PR PR PR   
ADI           31  2  1  2  5 15 49 70 58 10  6  3  8 33 76116129 12            
MAX LVORI      1  3  4  5  5  4  4  3  3  4  4  6  5  4  1  1  1  3            
STABILITY      A  F  F  G  E  C  C  C  C  E  E  F  E  B  C  B  B  E            
CEILING              None  5600   900  2000  None  None  None  None  None      
STA PRES            27.63 27.58 27.49 27.44 27.49 27.53 27.58 27.61            


Date           07/30Fri 07/31/26Sat 08/01/26Sun 08/02/26Mon 08/03/26
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       81      61      84      63      84      66      84      66      82
TEMP          80 73 64 63 82 75 66 66 83 74 69 68 82 75 69 67 80 73
DEWPT         61 60 58 59 61 62 60 61 64 64 63 65 68 68 66 66 69 68
RH            52 64 81 87 49 64 81 84 53 71 81 90 63 79 90 97 69 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW FW FW SC SC SC SC B2 B2 B2 B1 B2 B2 B1 B1 B1 B1
POP 12HR            0       0       5       5      20      30      60      40      50
RAIN SHWRS                               IS SC SC SC NM SC    IS SC
TSTMS                                    IS 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