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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Sun Sep 6 2026
VAZ012-062000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
431 AM EDT Sun Sep 6 2026
Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26
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 82 56 78 53 82
TEMP 62 63 73 77 76 67 63 61 59 58 67 74 75 67 61 57 54 56 70 77 80 71
DEWPT 61 63 68 68 67 65 63 60 58 58 62 61 62 60 58 55 54 55 61 61 61 59
MAX/MIN RH 66 100 60 100 51
RH 97100 84 74 74 93100 97 96100 84 64 64 78 90 93100 96 73 58 52 66
WIND DIR N NW N NE NE E E E E E SE SE SE SE SE SE SE SE SE S S SE
WIND SPD 0 1 1 1 2 2 3 3 3 3 3 3 2 2 2 2 1 1 2 2 1 2
CLOUDS SC B1 B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 SC B1 FW FW SC SC SC SC SC SC
CLOUDS(%) 46 67 66 87 76 70 80 72 73 64 77 53 33 55 16 20 26 32 27 30 26 27
VSBY 2 2 10 10 10 10 8 9 8 9 10 10 10 10 10 10 10 0 10 10 10 10
POP 12HR 70 30 5 0 0
RAIN SHWRS IS IS SC NM IS
TSTMS IS IS IS IS
Obvis PF PF
MIX HGT <1 <1 3 4 3 1 1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR W SW S NE E E E E E E E SE SE SE SE SE S SE S S S S
T WIND SPD 2 2 2 3 14 10 11 6 11 12 17 12 10 4 6 6 8 9 12 10 10 6
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 2 7 17 57 5 5 3 5 15 59 65 51 2 3 3 4 9 51 65 63 3
MAX LVORI 10 8 5 3 3 6 9 8 9 5 4 1 1 4 6 6 9 6 3 1 1 3
STABILITY F B B B B F F F F B B B A F G G G A A A A G
CEILING 0 1900 500 1500 600 None None None None None
STA PRES 18.12 27.20 27.26 27.30 27.36 27.37 27.42 27.44 27.49 27.46
Date Wed 09/09/26Thu 09/10/26Fri 09/11/26Sat 09/12/26
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 54 86 61 86 59 82 54 82
TEMP 58 57 82 74 64 63 82 73 63 60 77 69 59 56 78 70
DEWPT 55 54 62 61 58 58 65 64 61 59 61 59 56 55 61 61
RH 90 90 51 64 81 84 56 73 93 96 58 70 90 96 56 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW FW FW FW B1 B1 SC SC B1 FW SC SC B1
POP 12HR 0 0 0 30 30 30 10 30
RAIN SHWRS SC SC SC IS SC SC
TSTMS 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