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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EDT Fri Sep 11 2026
VAZ018-112000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
901 AM EDT Fri Sep 11 2026
Date Fri 09/11/26 Sat 09/12/26 Sun 09/13/26
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 81 67 81 66 85
TEMP 75 80 77 70 69 68 68 67 73 78 77 70 69 69 68 67 75 82 84 75
DEWPT 71 70 70 69 67 66 66 67 72 72 72 69 68 67 66 67 72 71 70 67
MAX/MIN RH 70 99 79 100 62
RH 87 72 79 97 93 93 93100 97 82 85 97 97 93 93100 90 69 63 76
WIND DIR W W N E SE SE E E SE SE SE S N W W W NW NW NW NW
WIND SPD 3 2 3 1 2 2 1 2 2 3 3 1 0 1 2 3 3 3 4 3
WIND GUST 13
CLOUDS B1 B1 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC FW
CLOUDS(%) 66 65 89 72 82 80 78 85 71 74 86 81 85 63 60 52 37 38 38 14
VSBY 10 10 10 10 5 1 0 0 8 3 3 6 6 10 10 10 10 7 7 10
POP 12HR 70 30 80 70 20
RAIN SHWRS IS NM NM SC IS SC NM NM NM SC SC IS IS IS IS
TSTMS IS SC SC IS SC SC SC IS IS IS
Obvis PF PF PF
MIX HGT 3 4 2 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR W W N E SE SE E E E E SE E E SE SW W NW NW NW NW
T WIND SPD 5 6 8 3 6 8 3 4 5 5 4 3 2 2 2 8 14 17 12 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 17 26 20 2 3 4 2 4 10 17 10 2 1 1 1 6 47 89 59 2
MAX LVORI 4 3 3 8 9 8 10 9 8 3 5 10 8 8 8 8 4 1 1 4
STABILITY C C C F F F F C C C C F F F F C B B B G
CEILING 1500 0 0 100 0 0 700 None None
STA PRES 27.82 27.84 27.85 27.87 27.84 27.83 27.81 27.83 27.81
Date Mon 09/14/26Tue 09/15/26Wed 09/16/26Thu 09/17/26
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 64 86 63 83 63 88 65 88
TEMP 67 66 84 73 66 63 80 71 66 64 85 75 68 66 85 75
DEWPT 65 64 67 64 61 60 66 64 61 61 68 66 63 63 68 66
RH 93 93 57 73 84 90 62 79 84 90 57 74 84 90 57 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC FW SC SC SC FW FW FW SC FW FW SC B1
POP 12HR 0 5 0 5 0 10 10 30
RAIN SHWRS SC
TSTMS 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