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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Tue Sep 8 2026
VAZ012-090800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
301 PM EDT Tue Sep 8 2026
Date 09/08/26 Wed 09/09/26 Thu 09/10/26 Fri
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 54 85 58 85 60
TEMP 77 66 60 58 56 57 75 81 81 70 64 62 60 61 76 81 83 74 66 63 61 62
DEWPT 62 62 60 57 55 56 62 61 61 61 60 57 55 56 64 65 65 64 63 63 61 62
MIN/MAX RH 100 47 92 54 100
RH 60 87100 96 96 96 64 51 51 73 87 84 84 84 66 58 55 71 90100100100
WIND DIR S S S S SW W W SW SW SW SW SW W W W W W W W W W W
WIND SPD 3 2 1 1 1 1 2 1 2 2 2 2 3 3 3 3 3 3 2 1 1 1
CLOUDS B1 SC FW SC SC SC FW SC SC FW FW CL CL CL FW FW FW B1 B1 SC B1 B1
CLOUDS(%) 57 26 25 33 38 35 20 42 36 8 12 0 0 0 15 23 16 54 54 47 62 58
VSBY 10 10 10 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 10 30
RAIN SHWRS SC SC SC
TSTMS IS
MIX HGT 5 <1 <1 <1 <1 <1 3 6 5 <1 <1 <1 <1 <1 4 5 5 <1
T WIND DIR S S S S S SW W SW SW S SW SW SW SW W W W SW
T WIND SPD 5 4 5 4 3 2 11 10 11 5 4 5 5 5 17 12 10 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 23 2 3 2 2 2 47 74 62 3 2 3 3 6 76 72 57 3
MAX LVORI 2 5 9 6 7 6 1 1 1 3 6 5 5 4 1 1 1 3
STABILITY C G G G G A B A B G G G G B B B B F
CEILING None None None None None None None None None
STA PRES 27.50 27.50 27.51 27.44 27.40 27.37 27.35 27.26
Date 09/11Sat 09/12/26Sun 09/13/26Mon 09/14/26Tue 09/15/26
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 83 59 83 60 84 60 85 58 86
TEMP 81 71 63 62 77 71 64 62 79 72 64 62 80 72 62 61 81 72
DEWPT 68 66 63 62 69 67 64 62 68 67 63 62 66 64 61 60 66 65
RH 65 84100100 76 87100100 69 84 97100 62 76 97 97 60 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B2 B1 B2 B1 B1 B1 B1 SC SC SC B1 FW FW FW B1
POP 12HR 70 30 80 20 50 5 30 5 30
RAIN SHWRS SC NM SC SC O IS SC SC SC
TSTMS SC IS IS SC IS 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