Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Wed Aug 12 2026
VAZ018-130800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 PM EDT Wed Aug 12 2026
Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat
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 67 88 69 87 69
TEMP 79 73 71 69 70 80 85 87 75 73 71 70 71 80 85 83 75 74 71 70 71
DEWPT 67 68 67 66 67 70 69 69 71 70 69 68 69 71 71 71 71 71 70 68 69
MIN/MAX RH 92 57 93 64 95
RH 67 84 87 90 90 72 59 55 87 90 93 93 93 74 63 67 87 90 97 93 93
WIND DIR W NW W W W W W NW NW NW NW W W W W W W NW NW NW NW
WIND SPD 3 4 5 5 6 6 5 5 3 2 2 2 2 3 5 5 3 2 2 2 2
WIND GUST 13 16 18 20 21 19 17 16
CLOUDS B1 SC SC SC SC SC SC SC SC B1 SC B1 B1 B1 B2 B2 B1 B1 B1 B1 B1
CLOUDS(%) 55 46 43 48 41 49 40 45 44 58 45 57 64 69 71 71 65 65 65 65 64
VSBY 10 9 8 5 3 10 10 10 7 10 10 4 1 4 10 10 10 10 10 10
POP 12HR 30 20 30 60 50
RAIN SHWRS SC IS IS IS IS IS SC SC NM NM SC SC SC SC IS
TSTMS IS IS SC SC IS
Obvis PF PF
MIX HGT <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR W W W W W NW W W NW W NW NW NW S W SW S
T WIND SPD 9 5 3 3 2 14 9 8 8 2 3 3 1 4 9 11 8
DISPERSION VP VP PR PR VP VP VP VP VP VP VP VP
ADI 4 4 2 2 3 49 52 40 4 1 2 2 1 15 36 40 4
MAX LVORI 3 5 6 6 6 3 1 1 6 7 7 7 7 3 1 3 6
STABILITY G E E E B B A A F F F F B B C C F
CEILING None None None None None 10300 3200 2900 11700
STA PRES 27.74 27.73 27.77 27.74 27.81 27.84 27.88 27.82
Date 08/15Sun 08/16/26Mon 08/17/26Tue 08/18/26Wed 08/19/26
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 69 88 71 88 68 86 66 87
TEMP 84 76 71 70 86 79 74 72 86 77 71 70 84 75 68 68 85 75
DEWPT 73 72 69 69 72 72 69 69 72 71 68 68 70 68 65 66 69 69
RH 70 87 93 97 63 79 84 90 63 82 90 93 63 79 90 93 59 82
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 SC B1 FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 60 30 30 10 20 20 20 20 20
RAIN SHWRS IS NM SC IS IS SC IS IS IS IS IS
TSTMS SC IS SC 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
Radar
Current Weather
Rivers & Lakes
Satellite
Forecast Maps
Hour by Hour Forecast
Tropical Weather
Graphical Hazards
Weather Briefing Page
Forecast Discussion
Text Products
Climate Plots
Submit A Storm Report
Fire Weather
Drought
Recreation Forecast
NOAA Weather Radio
Aviation
Follow us on X
Follow us on Facebook
Follow us on YouTube
RNK RSS Feed
