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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Sep 7 2026
VAZ018-080800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Mon Sep 7 2026
Date 09/07/26 Tue 09/08/26 Wed 09/09/26 Thu
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 59 84 60 86 66
TEMP 64 62 60 61 74 81 81 69 65 63 61 62 78 85 84 72 70 68 66 68
DEWPT 56 55 55 57 61 60 59 57 55 54 54 55 60 60 61 60 60 60 59 60
MIN/MAX RH 87 46 79 42 79
RH 75 78 84 87 64 49 47 66 70 72 78 78 54 43 46 66 71 76 78 76
WIND DIR E S N N S SE SE S SW SW W W SW SW SW S SW SW W W
WIND SPD 1 1 0 0 2 3 3 2 2 2 2 2 2 3 4 3 5 5 5 5
WIND GUST 17 18 17 18
CLOUDS FW FW FW SC SC SC SC FW FW FW FW SC FW FW FW FW FW CL CL FW
CLOUDS(%) 11 16 24 39 50 32 30 6 20 14 17 37 13 19 13 7 6 3 3 8
VSBY 10 10 10 10 10 10 10 10 10 10 10 3 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR E E E SE S S S SE S SW W W W W W S
T WIND SPD 4 2 2 1 4 3 3 4 3 3 3 3 9 10 9 4
DISPERSION VP VP VP VP VP VP VP VP PR PR PR
ADI 2 1 1 1 18 21 21 2 2 2 2 3 42 81 81 2
MAX LVORI 4 4 5 6 3 2 2 3 3 3 4 4 1 1 1 3
STABILITY G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.99 28.04 28.06 28.04 28.05 28.05 28.03 27.94
Date 09/10Fri 09/11/26Sat 09/12/26Sun 09/13/26Mon 09/14/26
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 87 66 84 64 82 65 85 63 85
TEMP 87 75 69 67 81 72 67 66 79 72 68 67 83 74 67 64 83 73
DEWPT 67 66 66 65 68 65 63 64 70 68 65 66 69 66 64 63 65 62
RH 52 74 90 93 65 79 87 93 74 87 90 97 63 76 90 97 55 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC SC FW FW FW SC
POP 12HR 30 40 50 20 60 30 20 5 20
RAIN SHWRS SC SC IS IS SC IS IS SC NM SC IS IS
TSTMS IS IS IS 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