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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Tue Aug 25 2026
VAZ012-260800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
501 PM EDT Tue Aug 25 2026
Date 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri
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 56 81 61 81 61
TEMP 67 60 58 57 59 75 80 77 70 65 64 62 64 75 79 77 70 66 64 63 64
DEWPT 53 52 51 51 53 61 61 63 62 62 61 59 61 66 65 66 64 63 61 60 62
MIN/MAX RH 82 52 92 61 94
RH 61 75 77 80 80 62 52 62 76 90 90 90 90 74 62 69 81 90 90 90 93
WIND DIR NW N N N SE S SW S S S S SW SW SW SW SW S N N N W
WIND SPD 1 0 0 0 1 2 2 2 1 1 1 1 1 1 2 1 1 0 0 0 1
CLOUDS CL FW FW SC SC FW B1 SC FW SC B1 B1 B2 B1 B2 B2 B1 B2 B2 B2 B2
CLOUDS(%) 4 9 12 30 39 22 60 49 22 43 53 59 72 55 70 70 69 74 76 71 75
VSBY 10 10 10 10 10 10 10 10 10 10 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 10 10 60 40
RAIN SHWRS IS NM SC SC IS SC
TSTMS IS SC SC IS
MIX HGT <1 <1 <1 <1 <1 4 6 4 <1 <1 <1 <1 <1 3 6 3 <1
T WIND DIR E SE S SW SW S SW SW S S S SW S W SW S SW
T WIND SPD 2 2 2 1 1 13 10 10 5 4 4 3 3 11 8 2 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 1 63 65 47 3 2 2 2 4 42 51 10 3
MAX LVORI 3 3 4 6 5 1 1 1 4 6 6 7 6 3 1 3 5
STABILITY G G G G A A B A G F F F B B B B F
CEILING None None None None None 100 1000 2000 100
STA PRES 27.35 27.34 27.36 27.31 27.30 27.28 27.28 27.25
Date 08/28Sat 08/29/26Sun 08/30/26Mon 08/31/26Tue 09/01/26
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 78 59 80 61 84 62 85 63 85
TEMP 77 70 62 61 78 70 63 63 81 74 64 64 82 76 66 66 83 76
DEWPT 66 65 61 61 65 64 62 63 64 64 62 63 64 64 63 63 65 64
RH 69 84 97100 64 81 97100 56 71 93 97 55 66 90 90 55 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 B1 B1 SC B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR 60 10 40 5 20 5 10 0 20
RAIN SHWRS SC NM IS SC IS IS IS
TSTMS IS SC SC 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