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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Aug 24 2026
VAZ018-250800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 PM EDT Mon Aug 24 2026
Date 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu
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 53 82 59 84 66
TEMP 76 66 60 56 54 56 72 81 80 69 64 61 60 62 77 84 81 72 69 67 66 67
DEWPT 55 50 49 49 48 50 53 53 52 53 53 53 53 54 62 65 66 63 63 63 63 64
MIN/MAX RH 82 37 78 53 93
RH 48 56 67 77 80 80 51 38 38 57 67 75 78 75 60 53 60 73 81 87 90 90
WIND DIR NW NW NW NW NW NW NW NW NW N NW N N E SE S S S S S SW SW
WIND SPD 6 5 3 2 2 3 2 1 2 1 1 1 0 1 3 4 4 2 2 1 1 1
WIND GUST 19 18
CLOUDS CL FW FW FW FW SC FW FW FW FW SC FW SC B1 SC B1 B1 B1 B1 B1 B1 B1
CLOUDS(%) 4 8 23 18 6 31 25 13 23 13 28 24 35 67 40 53 53 68 56 56 54 59
VSBY 10 10 10 10 9 4 10 10 10 10 10 10 10 10 10 10 10 4 10 10 10 0
POP 12HR 0 0 0 30 30
RAIN SHWRS SC SC IS IS SC SC SC
TSTMS IS SC IS
MIX HGT 5 <1 <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 3 6 3 <1
T WIND DIR W NW N NW NW NW NW NW NW S S NW W N S S S S
T WIND SPD 13 9 4 3 3 2 9 8 4 2 2 1 1 0 10 11 11 3
DISPERSION PR VP VP VP VP VP VP VP VP VP VP VP
ADI 81 4 2 2 2 2 35 49 33 1 1 1 1 0 42 50 38 2
MAX LVORI 1 3 3 4 5 5 1 1 1 3 3 4 4 4 1 1 1 4
STABILITY B F G G G A A A A G G G G B A C C F
CEILING None None None None None None None None 3500 1500
STA PRES 27.82 27.87 27.89 27.91 27.86 27.89 27.89 27.88 27.84
Date 08/27Fri 08/28/26Sat 08/29/26Sun 08/30/26Mon 08/31/26
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 85 65 84 64 83 65 85 67 88
TEMP 84 73 67 66 82 72 66 66 82 73 67 67 83 75 69 67 86 77
DEWPT 68 67 64 64 67 64 62 63 67 65 63 64 67 65 64 65 67 65
RH 59 81 90 93 61 76 87 90 61 76 87 90 59 71 84 93 53 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 SC SC B1 SC SC SC SC SC SC B1 SC SC SC SC SC
POP 12HR 60 30 30 10 20 10 10 5 10
RAIN SHWRS SC NM SC SC IS
TSTMS IS SC IS 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