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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EDT Tue Sep 1 2026
VAZ018-012000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1101 AM 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 87 70 93 71 95
TEMP 87 86 78 73 73 70 74 87 93 92 79 77 73 71 73 89 95 92 80
DEWPT 68 67 66 65 65 65 66 69 69 68 67 66 66 65 66 69 69 68 67
MAX/MIN RH 53 83 45 83 43
RH 53 53 67 76 76 84 76 55 46 46 67 69 79 81 79 52 43 46 65
WIND DIR W NW NW W NW NW NW NW W W W NW W W W W W W W
WIND SPD 4 4 3 2 2 2 3 2 2 2 2 1 2 2 2 2 4 4 2
CLOUDS SC SC FW FW FW FW FW CL FW SC FW FW CL CL CL CL FW FW FW
CLOUDS(%) 31 26 20 21 15 8 10 1 19 29 20 8 3 3 5 5 25 25 13
VSBY 10 10 10 9 8 6 6 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT 6 5 <1 <1 <1 <1 <1 4 7 6 <1 <1 <1 <1 <1 5 7 7 <1
T WIND DIR NW W W W W W NW NW W W W W W W W NW W W W
T WIND SPD 8 10 4 4 4 4 4 6 4 5 3 4 4 5 4 13 10 10 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 56 68 2 2 2 2 4 37 38 41 2 2 2 3 4 85 87 85 3
MAX LVORI 1 1 3 3 3 4 4 1 1 1 3 3 4 5 4 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 27.86 27.87 27.88 27.92 27.85 27.85 27.85 27.87 27.80
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 71 92 70 89 65 82 62 80
TEMP 73 73 92 80 72 71 86 76 68 66 79 72 66 64 78 70
DEWPT 67 67 69 65 66 67 68 65 64 63 67 63 61 61 65 61
RH 81 81 47 60 81 87 55 69 87 90 67 73 84 90 64 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC FW SC SC B1 B1 B1 B1 B1 SC B1 B1 SC
POP 12HR 0 10 10 30 30 30 30 20
RAIN SHWRS IS SC SC IS SC SC IS
TSTMS 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