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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Aug 26 2026
NCZ001-270800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 PM EDT Wed Aug 26 2026
Date 08/26/26 Thu 08/27/26 Fri 08/28/26 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 61 75 61 73 60
TEMP 62 62 62 62 68 72 71 64 63 62 61 61 67 72 69 63 62 61 61 61
DEWPT 61 61 60 61 62 63 63 62 62 61 60 61 62 62 63 61 61 60 59 60
MIN/MAX RH 100 70 98 73 97
RH 97 97 93 97 81 73 76 93 97 97 97100 84 71 81 93 97 97 93 97
WIND DIR S S SW W W S S S W W W NW NW NW NW NW N N N NE
WIND SPD 5 6 5 5 4 4 3 3 4 5 5 5 2 2 2 2 3 4 3 3
CLOUDS SC SC SC SC SC B1 B1 B2 B1 B1 B1 SC SC B1 B1 B1 SC SC SC SC
CLOUDS(%) 49 45 50 31 39 61 58 73 63 56 59 44 49 65 65 55 36 46 31 43
VSBY 10 9 5 6 10 10 10 10 10 4 2 3 10 10 10 10
POP 12HR 30 50 20 50 5
RAIN SHWRS SC SC IS IS IS IS SC SC
TSTMS SC SC IS IS SC SC
Obvis PF PF PF PF
MIX HGT <1 <1 <1 <1 4 4 2 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR SW SW S S W W SW S SW W NW NW NW NW N N
T WIND SPD 3 2 3 2 6 4 3 6 3 3 3 3 3 5 9 5
DISPERSION PR PR PR VP VP PR PR VP VP VP VP
ADI 2 2 2 2 32 17 10 3 2 2 2 3 13 32 33 3
MAX LVORI 9 10 8 8 3 3 4 8 8 8 8 9 4 3 3 8
STABILITY E E E A A C B F E E E A A B B F
CEILING None None None 1700 500 None None 600 None
STA PRES 26.76 26.74 26.76 26.73 26.74 26.76 26.80 26.77
Date 08/29Sun 08/30/26Mon 08/31/26Tue 09/01/26Wed 09/02/26
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 73 60 74 61 77 64 78 65 78
TEMP 71 64 61 60 71 66 62 62 73 69 65 64 75 70 66 65 75 69
DEWPT 63 62 61 60 62 62 61 61 62 62 61 61 62 63 62 61 63 63
RH 76 93100100 73 87 97 97 68 78 87 90 64 78 87 87 66 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 SC SC SC SC FW SC FW SC SC FW FW SC SC FW FW B1
POP 12HR 50 20 20 0 20 0 20 5 40
RAIN SHWRS SC IS IS IS IS SC
TSTMS SC IS IS 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