Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Aug 24 2026
VAZ046-242000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Mon Aug 24 2026
Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 86 57 86 60 88
TEMP 79 85 84 73 65 61 57 61 77 81 84 74 67 63 61 63 79 85 87 80
DEWPT 57 56 54 53 53 53 52 52 54 54 53 54 54 55 54 57 63 64 65 65
MAX/MIN RH 35 83 34 83 47
RH 47 37 36 49 65 75 83 72 45 39 34 50 63 75 78 81 58 50 48 60
WIND DIR W W W NW N N NW N NE NW S SE SE NW N N S S S S
WIND SPD 3 4 4 3 3 2 1 0 2 2 2 2 1 1 1 1 4 8 6 4
WIND GUST 13
CLOUDS CL FW FW FW FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC B1
CLOUDS(%) 2 8 9 11 8 12 23 18 17 15 30 31 8 19 16 18 34 36 44 54
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
RAIN SHWRS SC
TSTMS IS
MIX HGT 5 7 8 <1 <1 <1 <1 <1 4 5 6 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR W W W NW NW N NW NW N SW SW E SE W NW NW S SW SW S
T WIND SPD 12 11 11 4 3 4 3 1 4 2 3 1 2 1 2 1 5 9 10 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 77102105 2 2 2 2 1 23 15 25 1 1 1 1 1 29 65 81 3
MAX LVORI 1 1 1 2 3 3 5 3 2 2 2 2 3 4 4 5 2 1 1 3
STABILITY A A A G G G G A A A A G G G G A A B B E
CEILING None None None None None None None None None None
STA PRES 29.30 29.28 29.34 29.37 29.41 29.35 29.37 29.37 29.38 29.32
Date Thu 08/27/26Fri 08/28/26Sat 08/29/26Sun 08/30/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 67 88 66 88 67 88 67 89
TEMP 70 69 86 77 70 68 85 79 70 68 84 79 69 69 85 81
DEWPT 66 67 70 70 69 68 70 70 68 67 69 68 68 68 70 69
RH 87 93 59 79 97100 61 74 93 97 61 69 97 97 61 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 SC SC SC FW SC SC SC SC SC
POP 12HR 30 50 50 20 10 10 20 20
RAIN SHWRS SC SC SC SC SC IS IS IS IS IS
TSTMS IS IS 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
