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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Wed Aug 26 2026
VAZ018-270800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Wed Aug 26 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 57 85 66 88 65
TEMP 61 60 62 75 84 82 73 70 68 67 67 81 86 81 71 68 67 65 67
DEWPT 54 54 55 60 63 63 63 63 63 63 64 67 67 67 66 65 64 63 64
MIN/MAX RH 80 48 89 52 95
RH 78 81 78 60 49 53 71 78 84 87 90 63 53 63 84 90 90 93 90
WIND DIR N N SW S S S S SW SW SW SW SW S SW W W W NW NW
WIND SPD 0 0 1 3 4 4 3 3 2 2 1 2 3 3 2 1 1 2 2
WIND GUST 14
CLOUDS FW FW B1 SC B1 B2 B2 B1 SC SC B1 B1 B1 B2 B2 B1 B1 SC B1
CLOUDS(%) 24 24 53 26 66 78 76 69 43 35 57 61 58 73 85 54 56 50 59
VSBY 10 9 6 10 10 10 10 9 7 5 4 10 7 7 7 7 7 7 10
POP 12HR 0 5 10 70 30
RAIN SHWRS SC SC SC SC
TSTMS IS SC IS
MIX HGT <1 <1 <1 3 6 4 <1 <1 <1 <1 <1 3 6 3 <1 <1 <1 <1 <1
T WIND DIR NE NW W S S S S S SE S S W SW S S SW W NW NW
T WIND SPD 2 1 1 11 11 11 10 3 1 3 4 6 5 9 9 3 3 3 4
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 44 52 45 5 2 1 2 5 28 37 34 4 2 2 2 5
MAX LVORI 4 4 4 1 1 1 3 4 6 6 5 2 1 1 5 7 7 7 6
STABILITY G G B A C C F F F G B B B B F F F F B
CEILING None None 2700 2800 None 2200 2300 700 None
STA PRES 27.89 27.89 27.82 27.81 27.80 27.80 27.77 27.78 27.80
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 84 65 83 65 85 66 90 68 91
TEMP 83 71 66 66 82 71 67 67 84 73 68 68 89 76 70 70 90 76
DEWPT 67 65 63 63 67 66 64 65 67 66 64 65 67 66 64 65 68 67
RH 59 81 90 90 61 84 90 93 57 79 87 90 48 71 81 84 49 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW FW SC
POP 12HR 50 10 20 10 10 0 5 0 10
RAIN SHWRS SC IS
TSTMS SC 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