Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Aug 31 2026
VAZ018-312000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Mon Aug 31 2026
Date Mon 08/31/26 Tue 09/01/26 Wed 09/02/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 90 69 93 70 94
TEMP 84 89 88 77 74 72 70 71 86 92 91 78 75 71 70 71 88 94 92 79
DEWPT 67 65 66 66 65 65 64 65 68 67 67 66 65 65 64 65 69 68 67 66
MAX/MIN RH 45 84 43 83 42
RH 57 45 48 69 74 79 81 81 55 44 45 67 71 81 81 81 54 43 44 64
WIND DIR NW NW NW NW NW W W NW NW NW W NW W W W NW NW W W W
WIND SPD 2 3 3 1 1 1 2 3 3 4 4 2 1 1 2 2 2 2 3 2
CLOUDS SC SC SC B1 SC FW FW FW FW FW FW CL FW CL CL CL FW FW FW FW
CLOUDS(%) 34 38 38 57 27 18 9 15 6 14 11 2 6 4 3 5 6 13 16 13
VSBY 10 10 10 10 9 7 8 6 9 10 10 10
POP 12HR 5 5 0 0 0
MIX HGT 4 6 4 <1 <1 <1 <1 <1 4 6 5 <1 <1 <1 <1 <1 5 7 7 <1
T WIND DIR NW NW NW NW W W W W NW NW NW NW W W W W NW W SW SW
T WIND SPD 5 9 8 3 3 3 4 5 17 10 10 4 4 4 3 3 6 3 6 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 31 67 46 2 2 2 2 6 92 78 70 2 2 2 2 3 44 30 60 1
MAX LVORI 1 1 1 3 3 4 5 4 1 1 1 3 3 5 5 5 1 2 1 3
STABILITY A A A F 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 27.94 27.90 27.90 27.89 27.90 27.85 27.87 27.88 27.91 27.83
Date Thu 09/03/26Fri 09/04/26Sat 09/05/26Sun 09/06/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 72 94 70 91 66 86 62 80
TEMP 73 73 94 81 72 71 88 78 68 67 84 74 65 63 78 71
DEWPT 66 66 68 68 67 67 68 66 65 64 64 62 60 59 63 59
RH 79 79 43 65 84 87 52 67 90 90 51 66 84 87 60 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW SC FW SC B1 SC SC SC SC SC SC SC SC
POP 12HR 5 10 20 40 10 20 20 20
RAIN SHWRS IS IS SC IS IS IS IS
TSTMS IS IS 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