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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Tue Sep 8 2026
VAZ018-082000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1001 AM EDT Tue Sep 8 2026
Date Tue 09/08/26 Wed 09/09/26 Thu 09/10/26
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 80 61 88 66 89
TEMP 71 79 80 70 66 64 62 62 78 85 85 73 70 68 67 68 82 87 84 73
DEWPT 60 61 60 58 56 55 54 55 61 63 63 61 59 59 59 60 66 68 68 66
MAX/MIN RH 51 78 44 77 52
RH 68 54 51 66 70 73 75 78 56 48 48 66 68 73 75 76 58 53 59 79
WIND DIR S S S SE SW W W W SW SW SW SW SW SW W W W W W W
WIND SPD 3 3 2 2 3 3 2 2 2 3 4 3 5 5 5 5 8 8 6 5
WIND GUST 17 18 18 19 23 21 21 18
CLOUDS FW SC B1 FW FW FW FW SC SC SC SC FW CL CL CL CL FW B1 B1 B1
CLOUDS(%) 21 47 57 14 17 19 18 39 27 38 28 25 5 2 0 3 15 52 52 65
VSBY 10 10 10 10 10 9 8 5 9 10 9 9 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 30
RAIN SHWRS SC SC SC
TSTMS IS IS IS
MIX HGT 3 5 6 <1 <1 <1 <1 <1 3 7 7 <1 <1 <1 <1 <1 4 6 5 <1
T WIND DIR S S SW SE S SW W W W W SW S SW SW W W W W W NW
T WIND SPD 4 4 3 5 3 3 3 2 8 9 10 4 6 5 5 6 27 19 13 9
DISPERSION VP VP VP VP VP PR PR PR PR
ADI 18 28 22 3 2 2 2 2 34 68 74 2 3 3 3 7134 65 41 6
MAX LVORI 3 2 2 3 3 3 4 4 1 1 1 3 3 3 4 4 1 1 1 4
STABILITY B B B G G G G B B B B G F F F B B D D E
CEILING None None None None None None None None None
STA PRES 28.03 28.04 28.05 28.02 27.94 27.90 27.86 27.84 27.79
Date Fri 09/11/26Sat 09/12/26Sun 09/13/26Mon 09/14/26
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 67 83 65 81 66 86 65 86
TEMP 70 67 82 72 68 66 78 72 68 68 83 75 68 67 83 74
DEWPT 66 66 69 66 64 64 70 68 66 66 71 67 65 64 67 65
RH 87 97 65 81 87 93 76 87 93 93 67 76 90 90 59 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B1 B2 B2 B2 SC B1 B1 B1 FW SC SC SC
POP 12HR 50 60 40 70 20 30 10 30
RAIN SHWRS SC IS IS NM SC SC SC NM IS SC SC
TSTMS IS SC IS IS 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