Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Tue Sep 1 2026
VAZ012-020800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
431 PM EDT Tue Sep 1 2026
Date 09/01/26 Wed 09/02/26 Thu 09/03/26 Fri
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 66 92 67 92 68
TEMP 84 77 73 70 69 70 81 88 90 82 76 73 70 71 82 89 91 82 72 71 69 69
DEWPT 65 66 64 63 63 64 66 66 66 67 65 64 63 64 68 68 67 68 66 65 63 65
MIN/MAX RH 88 46 86 47 87
RH 53 69 73 78 81 81 60 48 45 61 69 73 78 79 63 50 45 63 81 81 81 87
WIND DIR NW W NW W NW W NW W W SW SW W W W W W W W W W W W
WIND SPD 3 1 1 1 2 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2
CLOUDS SC CL CL CL CL FW FW SC SC FW FW FW CL CL FW FW FW FW FW CL CL FW
CLOUDS(%) 26 2 3 5 2 6 9 34 30 9 8 6 4 5 12 15 14 12 16 4 2 9
VSBY 10 10 10 10 7 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 5
MIX HGT 5 <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR W W W W W W NW W NW SW W W W W NW W W SW
T WIND SPD 6 3 3 3 3 2 4 5 3 2 3 3 3 2 4 4 4 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 47 2 2 2 2 2 25 37 23 1 2 2 2 2 25 35 35 2
MAX LVORI 1 3 4 4 5 5 2 1 2 3 3 3 4 4 2 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
STA PRES 27.36 27.38 27.40 27.35 27.35 27.36 27.38 27.33
Date 09/04Sat 09/05/26Sun 09/06/26Mon 09/07/26Tue 09/08/26
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 92 65 88 60 84 58 82 56 83
TEMP 89 79 70 65 81 74 65 61 77 71 61 59 77 70 61 59 78 72
DEWPT 68 67 65 65 68 66 64 61 64 62 59 59 63 62 58 57 62 61
RH 50 67 84100 65 76 97100 64 73 93100 62 76 90 93 58 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW FW SC B1 B1 SC SC B1 SC SC SC B1 SC SC B1 B1
POP 12HR 20 10 40 30 30 20 30 10 20
RAIN SHWRS IS IS SC SC IS SC IS SC IS
TSTMS IS 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