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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Sep 3 2026
VAZ018-032000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Thu Sep 3 2026
Date Thu 09/03/26 Fri 09/04/26 Sat 09/05/26
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 94 70 93 70 88
TEMP 88 93 90 78 76 73 72 73 87 90 89 77 76 73 71 72 85 88 84 74
DEWPT 70 69 69 68 68 67 67 68 71 70 70 68 67 67 67 68 71 70 70 68
MAX/MIN RH 45 85 48 88 55
RH 55 46 50 71 76 81 84 84 59 52 54 74 74 81 87 87 63 55 63 82
WIND DIR NW W NW NW NW W W W W W W W W W W NW NW NW NW NW
WIND SPD 2 3 3 2 2 2 2 3 3 5 5 3 3 3 4 4 5 6 6 3
WIND GUST 16 13 14 18 18 18
CLOUDS CL FW FW FW SC FW CL CL FW SC FW SC FW FW FW FW SC B1 B1 B1
CLOUDS(%) 3 14 16 25 49 17 0 3 7 34 22 35 19 23 13 23 28 51 51 67
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 20 20 5 30
RAIN SHWRS IS SC SC SC
TSTMS IS SC SC
MIX HGT 4 7 6 <1 <1 <1 <1 <1 4 5 4 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR NW NW W W NW NW W W NW NW W N W NW W NW NW NW NW NW
T WIND SPD 6 5 4 2 3 3 4 4 17 18 13 11 4 4 3 3 5 8 13 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 37 46 32 1 2 2 2 4 86105 72 5 2 2 2 3 22 30 46 2
MAX LVORI 1 1 1 3 3 5 5 5 1 1 1 3 3 5 6 5 2 2 1 5
STABILITY A A A G F G G A A A A G G G F A A C C F
CEILING None None None None None None None None None None
STA PRES 27.88 27.82 27.83 27.82 27.83 27.77 27.77 27.77 27.79 27.75
Date Sun 09/06/26Mon 09/07/26Tue 09/08/26Wed 09/09/26
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 64 79 61 78 61 84 63 88
TEMP 69 66 78 71 64 62 76 70 64 62 82 73 66 65 85 77
DEWPT 66 64 67 62 59 59 64 60 57 58 64 62 59 60 66 63
RH 90 93 69 73 84 90 66 71 78 87 55 68 78 84 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 SC B1 B1 B1 FW SC SC SC FW SC SC SC
POP 12HR 50 40 20 10 5 5 5 10
RAIN SHWRS SC IS SC SC IS
TSTMS 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