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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Thu Sep 10 2026
VAZ012-102000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
131 PM EDT Thu Sep 10 2026
Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26
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 84 61 85 61 83
TEMP 80 80 70 67 65 63 63 75 79 79 70 65 64 62 63 73 80 75 69
DEWPT 66 66 65 63 61 61 62 68 68 68 67 65 64 62 63 70 70 70 68
MAX/MIN RH 56 100 61 100 71
RH 62 62 84 87 87 93 97 79 69 69 90100100100100 90 72 84 97
WIND DIR W W W W W W W W W NW E N E SE SE SE S S N
WIND SPD 3 3 2 2 2 2 2 2 1 1 1 0 1 1 1 1 1 1 0
CLOUDS B1 B1 B1 SC B1 B2 SC B1 SC B2 SC B1 B1 B2 B2 B1 OV OV B2
CLOUDS(%) 60 60 52 34 56 70 41 57 49 73 43 56 59 73 77 69 92 92 80
VSBY 7 7 10 10 10 10 1 10 7 6 7 7 10 10 6 6 3 3 7
POP 12HR 30 10 70 20 90
RAIN SHWRS IS IS IS NM IS IS SC SC O O SC
TSTMS IS IS SC IS IS SC SC IS
Obvis PF
MIX HGT 4 3 <1 <1 <1 <1 <1 3 4 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR W W W SW W W W W W SW SE SE E E E S S S S
T WIND SPD 12 14 2 2 4 3 2 3 5 1 2 4 5 2 2 4 5 6 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 62 62 1 1 2 2 2 10 29 3 1 2 3 1 2 11 19 17 3
MAX LVORI 1 1 5 6 6 7 6 4 3 3 7 9 9 10 10 5 3 4 9
STABILITY B B F G G F B C A C F F F F C C C C F
CEILING 1700 None None None 1700 None 100 200 1700
STA PRES 27.27 27.26 27.28 27.32 27.27 27.31 27.32 27.35 27.31
Date Sun 09/13/26Mon 09/14/26Tue 09/15/26Wed 09/16/26
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 61 84 58 82 58 83 60 84
TEMP 65 63 78 72 62 60 80 71 61 61 80 72 64 62 81 72
DEWPT 65 63 68 66 62 60 65 64 61 60 66 65 61 61 68 67
RH 100100 71 81100100 60 79100 97 62 79 90 97 65 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 B1 B1 FW SC SC B1 FW FW FW B1 FW FW SC B1
POP 12HR 30 30 5 30 5 30 5 50
RAIN SHWRS SC SC SC IS SC IS SC
TSTMS 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