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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Fri Aug 28 2026
VAZ012-282000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
301 AM EDT Fri Aug 28 2026
Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26
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 58 82 61 86
TEMP 63 64 74 79 80 72 63 60 59 60 71 78 78 69 64 62 61 62 74 82 84 75
DEWPT 62 60 65 63 62 62 61 59 58 60 65 65 65 64 63 62 61 62 66 64 64 64
MAX/MIN RH 54 100 61 100 49
RH 97 87 74 58 54 71 93 96 96100 81 64 64 84 97100100100 76 55 51 69
WIND DIR NW NW N N N N NE E NE E E SE SE SE SE SE SE SE S SW S S
WIND SPD 1 1 3 4 5 4 5 4 1 1 2 2 2 1 1 1 1 1 1 1 1 1
CLOUDS B1 SC SC B1 SC SC FW FW SC B1 B1 SC SC SC SC B1 B1 B1 SC SC SC SC
CLOUDS(%) 59 45 43 66 50 27 9 13 40 66 57 36 40 30 34 58 57 52 37 28 26 28
VSBY 3 1 10 9 9 10 10 9 7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 10 0 10
RAIN SHWRS IS IS
TSTMS IS
Obvis PF PF
MIX HGT <1 <1 3 4 4 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR W NW N N N N N N NE E SE SE SE SE SE SE S S SW W W S
T WIND SPD 1 2 4 8 6 5 4 2 3 4 12 9 10 9 6 8 8 8 5 8 5 2
DISPERSION VP VP PR VP VP VP VP VP VP VP
ADI 1 2 19 31 35 3 2 1 2 5 42 49 47 4 3 4 4 8 24 46 38 1
MAX LVORI 9 6 3 1 1 3 6 8 10 9 3 1 1 5 9 9 9 8 3 1 1 3
STABILITY F A A C A F F F G B B A A G G F F B A A A G
CEILING None None None None None None None None None None
STA PRES 27.32 27.31 27.36 27.39 27.43 27.41 27.43 27.43 27.44 27.39
Date Mon 08/31/26Tue 09/01/26Wed 09/02/26Thu 09/03/26
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 62 89 65 90 66 90 66 90
TEMP 64 64 84 77 67 67 85 78 69 68 85 78 69 67 84 78
DEWPT 62 62 64 64 62 62 65 66 64 63 66 66 64 64 66 65
RH 93 93 51 64 84 84 51 67 84 84 53 67 84 90 55 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW FW CL FW SC FW FW FW SC FW SC SC B1
POP 12HR 0 5 0 20 5 30 10 40
RAIN SHWRS IS SC IS SC
TSTMS 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