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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Aug 29 2026
VAZ024-292000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Sat Aug 29 2026
Date Sat 08/29/26 Sun 08/30/26 Mon 08/31/26
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 84 65 91 67 96
TEMP 76 81 83 77 71 69 68 67 81 89 90 79 74 70 67 69 88 95 94 82
DEWPT 65 65 65 65 64 64 64 67 69 68 67 67 67 67 66 66 68 66 67 68
MAX/MIN RH 54 100 47 97 38
RH 69 58 55 67 79 84 87100 67 50 47 67 79 90 97 90 52 39 41 63
WIND DIR E E SE SE SE S SE SE SW S S S SW N N NW NW NW W NW
WIND SPD 2 4 4 3 1 1 1 1 2 3 3 2 1 0 0 1 1 2 2 1
CLOUDS SC SC FW FW FW FW SC SC FW FW FW FW FW FW FW FW FW SC SC SC
CLOUDS(%) 39 32 20 7 11 23 32 39 21 18 18 12 20 12 12 11 15 26 35 28
VSBY 10 10 10 10 9 7 5 4 8 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 5 0 5
Obvis PF PF
MIX HGT 3 4 4 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 4 7 5 <1
T WIND DIR E E SE E E NE N W SW W SW S S SW W NW NW NW NW W
T WIND SPD 8 5 9 4 2 1 1 1 3 5 4 2 3 2 2 3 5 5 6 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 30 31 47 2 1 1 1 1 14 37 25 1 2 1 1 3 32 47 43 1
MAX LVORI 3 1 1 3 4 6 6 10 3 1 2 3 5 7 8 6 1 1 1 3
STABILITY A A A G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 28.71 28.67 28.69 28.71 28.70 28.61 28.61 28.60 28.63 28.58
Date Tue 09/01/26Wed 09/02/26Thu 09/03/26Fri 09/04/26
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 70 97 71 98 71 96 69 93
TEMP 73 72 96 85 74 73 96 85 74 73 94 84 72 71 91 81
DEWPT 67 67 68 69 68 69 68 68 69 69 68 68 69 68 67 66
RH 81 84 40 59 82 87 40 57 84 87 43 59 90 90 45 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC SC FW FW FW SC FW FW SC SC SC SC SC
POP 12HR 0 5 5 10 10 20 10 30
RAIN SHWRS IS SC
TSTMS 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