National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EDT Sat Aug 15 2026

NCZ003-160800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
1001 PM EDT Sat Aug 15 2026

Date           08/15/26      Sun 08/16/26            Mon 08/17/26            Tue
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                 70          89          71          91          70
TEMP                74 72 71 72 82 87 87 81 76 74 72 74 86 90 88 81 75 72 70 72
DEWPT               72 70 69 72 76 75 75 75 73 70 68 70 74 71 72 72 71 70 69 70
MIN/MAX RH                   98          65          91          54          96
RH                  93 93 93100 82 68 68 82 90 87 87 87 68 54 59 74 87 93 97 93
WIND DIR             W NW  W  N  S  W SW SW  W  W  W  W  W  W NW NW NW NW NW  N
WIND SPD             2  2  2  0  2  3  3  1  1  1  2  2  5  5  5  3  2  2  2  3
CLOUDS              SC B1 SC SC SC B2 SC FW FW SC SC B1 FW B1 B1 SC SC SC SC SC
CLOUDS(%)           39 62 40 30 33 73 48  7  9 27 26 58 21 55 55 39 46 42 29 32
VSBY                 9  8  5  6 10 10 10 10 10 10 10 10 10 10 10  6 10 10 10   
POP 12HR                     40          20          10          30          10
RAIN SHWRS                         IS IS                   SC SC               
TSTMS                              IS IS                   SC SC               
Obvis                     PF PF                                                
MIX HGT             <1 <1 <1 <1  2  4  3 <1 <1 <1 <1 <1  4  6  4 <1            
T WIND DIR           N NE  E  S  W SW SW  S SW  W NW NW NW NW NW NW            
T WIND SPD           1  1  2  2  5  5  6  3  4  4  6 11 13 14 12  6            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  1  1  2 18 32 26  2  2  2  3 11 69 66 50  3            
MAX LVORI            9 10 10  9  3  3  3  5  6  6  6  5  1  1  1  4            
STABILITY            F  G  F  A  A  A  A  G  G  G  G  A  A  C  C  G            
CEILING                    None  None  None  None  None  None  None  None      
STA PRES                  28.23 28.21 28.12 28.09 28.07 28.09 28.05            


Date           08/18Wed 08/19/26Thu 08/20/26Fri 08/21/26Sat 08/22/26
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       88      65      88      68      88      66      83      64      82
TEMP          85 82 69 68 86 82 71 70 85 80 68 69 80 76 67 66 79 75
DEWPT         69 68 64 64 67 69 65 66 69 68 65 65 66 66 63 64 66 66
RH            59 63 84 87 53 65 81 87 59 67 90 87 62 71 87 93 64 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW FW FW FW FW FW SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR           10       0       5      10      40      30      50      50      40
RAIN SHWRS                            IS SC SC SC IS SC SC IS SC SC
TSTMS                                    SC 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