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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Sep 10 2026
VAZ012-110800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Thu Sep 10 2026
Date 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun
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 61 84 60 79 61
TEMP 67 65 63 63 75 79 78 69 65 64 63 63 74 78 74 69 66 65 63 63
DEWPT 66 64 62 63 68 69 69 68 65 64 63 63 69 69 70 67 65 65 63 63
MIN/MAX RH 100 64 100 73 100
RH 97 97 97100 79 72 74 97100100100100 84 74 87 93 97100100100
WIND DIR W W NW W W W NW N N SE SE SE SE S S N N W W W
WIND SPD 2 2 2 1 2 1 1 0 0 1 1 1 1 2 1 0 0 1 1 2
CLOUDS SC B2 B1 B1 B1 B1 B1 B2 B1 SC B2 B2 B1 OV OV B2 B2 B1 B1 SC
CLOUDS(%) 50 71 59 68 59 69 67 74 58 50 77 76 63 90 90 78 75 57 64 45
VSBY 10 7 6 6 10 9 9 10 10 9 8 7 7 3 3 6 6 10 10 10
POP 12HR 10 50 20 80 50
RAIN SHWRS SC SC IS SC SC O O SC SC
TSTMS SC SC IS SC SC SC
Obvis PF PF
MIX HGT <1 <1 <1 <1 3 4 2 <1 <1 <1 <1 <1 2 4 2 <1
T WIND DIR SW W W W W W SW S SE SE SE SE S SW S S
T WIND SPD 5 4 4 3 8 11 8 4 2 1 1 1 8 11 9 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 3 23 43 22 2 1 1 1 1 19 41 24 2
MAX LVORI 9 9 9 9 3 3 3 6 10 10 10 10 4 3 4 8
STABILITY F F F A C C C F F F F C C C C F
CEILING None 2700 None 2500 None 100 100 1200 100
STA PRES 27.28 27.28 27.31 27.27 27.29 27.30 27.33 27.29
Date 09/13Mon 09/14/26Tue 09/15/26Wed 09/16/26Thu 09/17/26
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 82 59 83 57 81 58 85 60 84
TEMP 78 72 62 61 78 70 61 59 77 69 60 60 81 72 63 62 80 71
DEWPT 69 67 62 61 64 63 59 58 65 64 60 59 67 66 62 62 68 67
RH 74 84100100 62 78 93 96 67 84100 96 63 81 97100 67 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 FW FW SC FW FW FW SC SC FW FW SC B1 SC FW B1 B1
POP 12HR 40 5 5 0 20 5 30 10 50
RAIN SHWRS SC IS IS SC SC SC
TSTMS 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