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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Tue Sep 1 2026
WVZ043-012000-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
131 PM EDT Tue Sep 1 2026
Date Tue 09/01/26 Wed 09/02/26 Thu 09/03/26
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 84 68 87 68 88
TEMP 83 84 77 74 72 70 71 80 85 86 80 75 73 71 71 80 86 87 80
DEWPT 67 67 66 65 64 64 64 66 66 65 66 65 65 65 65 68 67 67 68
MAX/MIN RH 57 85 50 87 51
RH 59 57 69 74 76 81 79 62 53 50 62 71 76 81 81 67 53 52 67
WIND DIR NW NW W W W W W W W W W W W W SW W W W W
WIND SPD 8 6 2 1 1 1 1 2 3 3 2 1 2 1 1 2 4 4 2
CLOUDS SC SC FW FW FW CL FW FW SC FW FW CL CL CL FW FW FW FW FW
CLOUDS(%) 27 27 15 6 6 3 7 11 33 12 11 3 5 5 7 15 20 6 12
VSBY 10 10 10 9 8 7 7 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 0 0 0 5
MIX HGT 6 5 <1 <1 <1 <1 <1 4 6 6 <1 <1 <1 <1 <1 5 7 6 <1
T WIND DIR W W W SW W W W NW W W W W W W W NW W W W
T WIND SPD 9 9 2 3 2 2 1 8 5 6 3 2 2 2 1 12 8 10 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 63 60 1 2 1 1 1 45 44 48 2 1 1 1 1 81 64 76 2
MAX LVORI 1 1 3 4 5 5 7 1 1 1 3 4 5 6 6 1 1 1 3
STABILITY A 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 27.75 27.76 27.77 27.80 27.74 27.74 27.73 27.76 27.69
Date Fri 09/04/26Sat 09/05/26Sun 09/06/26Mon 09/07/26
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 69 87 67 82 63 79 60 78
TEMP 71 70 86 75 70 68 81 71 66 64 77 71 63 61 77 69
DEWPT 67 67 69 69 68 68 70 68 66 64 65 62 61 61 64 62
RH 87 90 57 82 93100 69 90100100 67 73 93100 64 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW B1 SC SC B1 B1 B1 SC B1 B1 SC SC B1 SC
POP 12HR 5 40 20 50 30 30 20 30
RAIN SHWRS SC IS IS SC SC SC IS SC SC IS IS SC
TSTMS SC 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