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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
256 PM EDT Sun Aug 30 2026
VAZ012-310800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
256 PM EDT Sun Aug 30 2026
Date 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed
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 63 85 65 87 67
TEMP 82 73 68 65 64 65 79 83 83 76 70 68 65 67 81 86 86 78 72 69 68 69
DEWPT 66 65 64 63 61 62 66 65 65 65 64 63 62 63 67 66 66 66 65 64 62 64
MIN/MAX RH 92 53 88 50 85
RH 58 76 87 93 90 90 64 55 55 69 81 84 90 87 63 51 51 67 79 84 81 84
WIND DIR SW W N N W W NW NW NW N N N W W NW NW W N N W W W
WIND SPD 1 1 0 0 1 1 1 1 1 0 0 0 1 1 1 1 1 0 0 1 1 1
CLOUDS FW FW FW SC SC FW SC SC SC FW FW FW SC SC FW SC FW FW FW CL CL FW
CLOUDS(%) 25 15 24 28 28 22 27 49 43 14 10 24 28 32 16 26 24 15 12 5 3 10
VSBY 10 10 10 7 7 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 0 0 0
MIX HGT 4 <1 <1 <1 <1 <1 4 6 4 <1 <1 <1 <1 <1 4 6 5 <1
T WIND DIR SW S S SW W W NW NW NW W SW W W W NW NW W NW
T WIND SPD 3 3 3 2 2 2 8 10 8 2 3 3 4 4 17 11 12 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 18 2 2 1 1 2 41 70 43 1 2 2 2 4 86 81 80 3
MAX LVORI 2 4 6 7 7 6 1 1 1 3 5 5 6 5 1 1 1 3
STABILITY A G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 27.40 27.41 27.41 27.44 27.39 27.38 27.38 27.38 27.35
Date 09/02Thu 09/03/26Fri 09/04/26Sat 09/05/26Sun 09/06/26
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 68 93 66 90 62 86 58 82
TEMP 87 78 69 69 88 78 69 66 83 76 65 63 81 73 62 60 78 70
DEWPT 65 66 64 64 67 67 66 65 67 66 63 63 65 63 61 60 63 61
RH 48 67 84 84 50 69 90 97 59 71 93100 58 71 97100 60 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW SC B1 SC FW SC B1 SC SC SC B1 B1 SC SC B1
POP 12HR 5 5 30 20 40 20 40 30 40
RAIN SHWRS SC IS IS SC IS IS SC SC IS SC
TSTMS SC IS SC IS SC 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