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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EDT Mon Aug 24 2026
VAZ012-250800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
831 PM EDT Mon Aug 24 2026
Date 08/24/26 Tue 08/25/26 Wed 08/26/26 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 51 82 55 84 61
TEMP 57 53 51 53 70 78 81 70 60 58 56 59 76 83 80 71 66 63 61 63
DEWPT 50 48 46 48 52 51 51 53 52 51 51 54 61 61 63 62 62 61 60 61
MIN/MAX RH 86 35 86 49 97
RH 77 83 83 83 53 39 35 55 75 77 83 83 60 47 56 73 87 93 97 93
WIND DIR N N N NW N W W NW N N N S S S S S S S SW SW
WIND SPD 1 0 0 1 0 1 1 1 0 0 0 1 2 2 2 1 1 1 1 1
CLOUDS FW SC SC SC FW FW FW FW FW SC SC B1 SC B1 B1 B1 B1 B1 B1 B1
CLOUDS(%) 11 29 29 39 16 17 20 14 8 36 44 53 34 56 52 56 60 51 54 59
VSBY 10 10 10 10 10 10 10 10 10 10 10 5 10 10 10 10 10 0 2 10
POP 12HR 0 0 0 30 20
RAIN SHWRS SC SC IS IS SC
TSTMS SC SC
MIX HGT <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 4 6 4 <1
T WIND DIR N N NW W NW NW NW E E S S S SW SW S S
T WIND SPD 3 2 1 1 4 6 3 2 2 2 2 3 12 10 10 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 1 16 40 22 1 1 1 1 3 69 69 53 3
MAX LVORI 4 5 6 5 2 1 2 2 4 4 5 5 1 1 1 3
STABILITY G G G A A A A G G G F A A B B F
CEILING None None None None None None None None None
STA PRES 27.34 27.35 27.37 27.33 27.35 27.35 27.34 27.31
Date 08/27Fri 08/28/26Sat 08/29/26Sun 08/30/26Mon 08/31/26
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 84 60 83 59 84 60 86 62 88
TEMP 82 71 63 62 79 72 62 62 80 73 63 63 81 75 65 65 83 76
DEWPT 65 65 62 62 65 63 60 61 63 63 61 62 63 63 62 63 65 64
RH 56 81 97100 62 73 93 97 56 71 93 97 54 66 90 93 55 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR 60 30 30 5 20 5 10 5 20
RAIN SHWRS SC NM SC IS SC IS IS
TSTMS IS SC IS SC 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