
Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >
Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Aug 10 2026
NCZ001-110800-
RAWS 310141
36.40N 81.29W Elev. 3009 ft
801 PM EDT Mon Aug 10 2026
Date 08/10/26 Tue 08/11/26 Wed 08/12/26 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 66 82 67 80 65
TEMP 71 69 68 69 75 79 81 76 72 70 69 69 75 79 80 75 70 68 66 68
DEWPT 63 63 63 64 66 66 65 65 66 65 66 66 67 67 67 67 66 66 65 66
MIN/MAX RH 89 60 94 64 97
RH 76 81 84 84 74 64 58 69 81 84 90 90 76 67 65 76 87 93 97 93
WIND DIR NW NW NW NW NW NW NW W NW W NW NW NW W W W W NW W W
WIND SPD 6 8 8 9 11 10 8 6 8 9 12 13 11 9 8 6 6 6 8 9
WIND GUST 19 20 23 20 24 24
CLOUDS SC SC SC SC SC B1 B1 SC SC SC SC B2 B1 SC SC SC SC SC SC B1
CLOUDS(%) 36 39 47 42 33 55 60 47 41 35 48 81 59 44 42 38 40 46 46 55
VSBY 10 10 9 10 10 10 8 10 10 5 10 10 10 10 10 10
POP 12HR 20 10 30 20 10
RAIN SHWRS IS IS IS
TSTMS IS IS IS
MIX HGT <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 1 3 3 4 <1
T WIND DIR NW N N N NW W NW W W W NW W W W NW SW
T WIND SPD 4 17 8 20 13 16 16 9 5 5 6 6 20 19 3 4
DISPERSION PR PR PR PR PR PR FR PR PR PR PR
ADI 4 12 7 22 42 59 60 6 5 4 6 10 45 78 15 2
MAX LVORI 4 4 4 4 3 1 1 3 5 5 5 5 3 1 3 3
STABILITY D E D B C C B E D E D D D B B F
CEILING None None None None None None 4900 None None
STA PRES 27.33 27.29 27.30 27.23 27.24 27.21 27.20 27.16
Date 08/13Fri 08/14/26Sat 08/15/26Sun 08/16/26Mon 08/17/26
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 81 67 81 65 79 65 82 67 81
TEMP 80 77 70 69 79 76 70 66 78 74 68 67 80 76 70 68 80 75
DEWPT 68 68 66 66 69 68 66 66 68 68 66 65 68 68 65 65 67 66
RH 67 74 87 90 72 76 87100 71 82 93 93 67 76 84 90 65 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 SC SC SC B1 SC SC SC B1
POP 12HR 10 5 30 20 60 20 30 10 30
RAIN SHWRS SC IS IS NM IS SC SC
TSTMS SC IS IS SC IS SC SC
$$
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