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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Aug 23 2026
VAZ012-240800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Sun Aug 23 2026
Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed
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 52 78 50 82 56
TEMP 58 55 53 55 68 73 74 65 56 52 50 52 69 77 80 70 59 56 56 58
DEWPT 51 49 49 51 55 53 52 51 50 49 47 48 52 51 50 53 52 51 51 53
MIN/MAX RH 85 43 88 35 86
RH 77 80 86 86 63 49 46 60 80 89 89 86 55 40 35 55 78 83 83 83
WIND DIR NW W W W W W NW NW N N N N N W NW N N N N N
WIND SPD 1 1 2 2 2 3 2 1 0 0 0 0 0 1 1 1 0 0 0 0
CLOUDS FW SC FW SC SC SC SC FW SC SC SC SC FW FW FW FW SC FW FW SC
CLOUDS(%) 22 27 19 28 36 29 40 22 28 35 32 40 14 16 13 9 27 16 23 35
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR SW SW W W W NW NW NW N NW NW W NW NW W N
T WIND SPD 3 3 3 4 14 11 9 4 2 2 2 1 5 3 3 0
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 4 73 71 57 2 1 1 1 1 23 22 23 0
MAX LVORI 4 4 5 5 1 1 1 3 5 6 6 5 2 2 2 2
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 27.27 27.27 27.31 27.30 27.33 27.35 27.35 27.31
Date 08/26Thu 08/27/26Fri 08/28/26Sat 08/29/26Sun 08/30/26
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 86 60 84 60 84 58 85 60 85
TEMP 83 74 62 62 77 72 63 62 79 72 61 61 80 73 63 63 81 74
DEWPT 58 60 60 61 65 65 62 62 64 63 60 60 62 61 60 61 63 63
RH 43 62 93 97 67 79 97100 60 73 97 97 54 66 90 93 54 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC B1 B2 SC SC B1 SC FW SC FW SC SC SC B1 B1
POP 12HR 10 20 60 20 20 5 20 5 20
RAIN SHWRS IS SC NM IS IS IS IS
TSTMS IS SC 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