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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Sep 10 2026
VAZ018-102000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM 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 88 68 84 67 81
TEMP 81 87 84 74 72 70 68 68 78 83 80 71 69 68 67 68 74 79 77 70
DEWPT 68 69 70 67 66 66 65 66 70 70 71 68 67 66 66 67 72 72 73 69
MAX/MIN RH 56 93 66 97 78
RH 65 55 63 79 81 87 90 93 76 65 74 90 93 93 97 97 93 79 87 97
WIND DIR W W W W W W W NW N NE E E SE SE E SE SE SE SE S
WIND SPD 8 6 6 3 3 3 3 2 2 2 2 2 1 1 1 2 2 3 2 1
WIND GUST 24 20 19 13
CLOUDS FW SC B1 B1 B1 SC SC B1 B1 B2 B2 B1 B2 B2 B2 B2 B2 OV OV B2
CLOUDS(%) 25 33 55 57 52 31 32 63 69 79 72 59 74 75 75 82 85 88 88 74
VSBY 10 10 10 10 7 6 5 4 8 3 3 6 6 7 7 10 10 10 10 10
POP 12HR 20 20 70 40 80
RAIN SHWRS IS IS IS SC NM SC SC IS IS O O SC
TSTMS IS IS IS SC SC IS IS SC SC SC
MIX HGT 3 5 3 <1 <1 <1 <1 <1 2 3 1 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR W W W W W NW N E E E E NE E E E SE SE S S S
T WIND SPD 10 14 11 9 2 1 1 1 6 8 5 3 3 2 2 3 3 6 8 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 38 82 29 4 1 1 1 1 17 25 11 2 2 1 1 3 5 19 18 2
MAX LVORI 1 1 2 4 5 6 7 8 3 3 3 7 7 7 8 8 6 3 4 8
STABILITY B B D F F G G C C C C F F F F C C C C F
CEILING None None None None 500 800 0 0 100 500
STA PRES 27.83 27.78 27.79 27.80 27.85 27.83 27.87 27.86 27.89 27.85
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 67 85 64 86 63 86 65 88
TEMP 69 68 83 74 67 66 83 74 67 65 83 75 69 67 86 76
DEWPT 67 67 70 67 64 64 67 65 62 62 68 66 64 64 69 67
RH 93 97 65 79 90 93 59 74 84 90 61 74 84 90 57 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 B1 SC FW SC SC SC FW SC SC SC FW FW FW B1
POP 12HR 50 20 5 10 5 20 5 40
RAIN SHWRS SC IS IS SC
TSTMS 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