National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EDT Fri Aug 14 2026

NCZ003-150800-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
1231 AM EDT Fri Aug 14 2026

Date           08/13/26      Fri 08/14/26            Sat 08/15/26            Sun
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                 71          91          72          89          72
TEMP                   72 72 73 83 88 87 81 76 74 73 73 81 86 84 79 75 73 72 73
DEWPT                  70 69 71 74 74 74 74 73 72 71 72 74 74 74 73 73 72 71 72
MIN/MAX RH                   95          61          94          65          98
RH                     93 90 93 74 63 65 79 90 93 93 97 79 68 72 82 94 97 97 97
WIND DIR                W NW NW NW NW  W  W  W  N  N NE  N  N NE NE  E NE NE  S
WIND SPD                3  3  3  3  4  3  2  3  3  3  3  3  4  3  2  2  2  2  2
CLOUDS                 B1 B1 SC SC B1 B2 B1 B2 SC SC SC SC B1 B2 B1 B2 B1 B1 SC
CLOUDS(%)              53 56 37 46 61 72 62 84 48 43 49 26 63 76 66 71 55 61 47
VSBY                   10 10 10 10 10 10 10 10 10 10 10 10 10  7 10 10 10  7  8
POP 12HR                      5          30          20          60          30
RAIN SHWRS                         IS SC    IS                SC SC SC         
TSTMS                              IS SC    IS                SC SC IS         
MIX HGT                <1 <1 <1  3  4  3 <1 <1 <1 <1 <1  3  4  3 <1 <1 <1 <1 <1
T WIND DIR              W NW NW NW NW NW  W  W  W  N  W NW NW NW NE NE NE  E SE
T WIND SPD              2  2  2  6 13  4  2  2  2  1  1  6  8  5  8  9  5  3  2
DISPERSION             VP VP             VP VP VP VP             VP VP VP VP   
ADI                     1  1  2 25 53 18  1  1  1  1  1 26 30 19  4  4  3  2  2
MAX LVORI               7  7  6  3  1  3  4  7  7  8  7  3  3  3  5  6  9  8  8
STABILITY               F  F  A  A  C  B  F  F  F  F  A  A  C  B  F  F  F  F  A
CEILING                    None  None  4300  8600  None  None  3000  3800  None
STA PRES                  28.97 29.02 28.99 29.01 29.01 29.03 29.00 29.04 29.03


Date           08/16Mon 08/17/26Tue 08/18/26Wed 08/19/26Thu 08/20/26
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       90      73      93      71      88      69      88      70      91
TEMP          87 83 75 74 92 82 73 73 87 79 71 70 85 81 72 72 90 80
DEWPT         74 73 72 71 72 71 71 70 70 69 67 67 70 69 69 69 69 69
RH            65 72 90 90 52 69 93 90 57 72 87 90 61 67 90 90 50 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR           30       5      10      20      10      20      20      10      20
RAIN SHWRS       SC             IS          IS       IS          IS
TSTMS            SC             IS                   IS          IS

$$


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