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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Wed Sep 9 2026
VAZ012-092000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Wed Sep 9 2026
Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26
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 85 59 86 60 84
TEMP 75 80 83 73 64 62 61 62 76 81 81 71 66 64 61 63 75 81 78 69
DEWPT 63 64 64 63 61 58 56 57 64 65 66 64 64 62 61 62 68 69 69 67
MAX/MIN RH 52 93 54 100 65
RH 66 58 53 71 90 87 84 84 66 58 60 79 93 93100 97 79 67 74 93
WIND DIR W SW SW SW SW W W W W W W W W W W W W W NW N
WIND SPD 2 2 2 2 2 2 3 4 4 3 3 2 2 1 1 1 1 1 1 0
CLOUDS FW SC FW CL FW FW CL FW FW FW FW B1 B1 SC B1 B1 B2 B2 B2 B2
CLOUDS(%) 20 26 23 5 20 9 4 7 14 22 13 56 56 46 54 58 71 79 79 70
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 7 8 10
POP 12HR 5 0 20 30 70
RAIN SHWRS SC SC SC SC NM NM SC
TSTMS IS SC SC IS
MIX HGT 3 5 5 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 3 4 2 <1
T WIND DIR W W W S SW SW SW W W W W W W SW W SW W W SW SE
T WIND SPD 8 6 9 5 4 5 8 9 20 19 11 3 2 5 4 3 12 8 6 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 30 40 49 3 2 3 4 10 86107 60 2 1 3 2 3 38 30 19 2
MAX LVORI 3 1 1 3 6 6 5 4 1 1 1 4 7 8 9 9 3 3 3 7
STABILITY B B B G G G G B B B B F F F F C C C C F
CEILING None None None None None None None None 2000 2500
STA PRES 27.50 27.42 27.38 27.34 27.34 27.28 27.26 27.25 27.27 27.25
Date Sat 09/12/26Sun 09/13/26Mon 09/14/26Tue 09/15/26
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 60 83 60 84 59 85 60 86
TEMP 63 62 80 70 63 62 79 72 63 62 80 72 64 62 81 73
DEWPT 63 62 70 68 63 62 69 67 63 62 67 66 63 62 69 67
RH 100100 72 93100100 72 84100100 65 81 97100 67 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 OV B1 SC B1 B1 SC FW FW B1 FW FW FW B1
POP 12HR 30 90 20 50 0 30 5 40
RAIN SHWRS SC SC O IS IS SC SC SC
TSTMS IS IS SC 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