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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 PM EDT Wed Aug 26 2026
NCZ003-270800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
331 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 67 87 67 86 67
TEMP 83 76 70 68 67 68 77 84 83 75 70 69 67 68 79 84 81 74 69 68 67 67
DEWPT 68 68 67 68 67 68 70 70 70 70 70 69 67 68 69 69 69 70 69 68 67 67
MIN/MAX RH 100 61 100 60 100
RH 61 76 90100100100 79 63 65 84100100100100 72 61 67 87100100100100
WIND DIR S S S SW SW W SW S W SE W NW W NW N SW S SW N N NE NE
WIND SPD 5 1 2 2 1 2 3 4 4 2 2 2 2 2 2 2 2 1 2 2 4 4
CLOUDS B1 B1 B1 SC B1 B1 SC SC B1 B1 B2 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B1
CLOUDS(%) 61 69 53 43 54 52 47 44 57 69 76 61 56 55 45 64 60 66 64 52 55 51
VSBY 10 10 10 10 8 8 10 10 10 10 9 8 9 10 10 10 10 10
POP 12HR 10 40 40 40 20
RAIN SHWRS SC IS SC SC SC IS IS
TSTMS SC IS IS SC SC IS
MIX HGT 6 <1 <1 <1 <1 <1 2 5 4 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR S S S S S S SW SW SW SW W W W W W W NW S
T WIND SPD 10 4 3 6 3 4 6 6 5 4 2 2 1 1 3 3 3 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 45 2 2 3 2 5 20 41 22 2 1 1 1 1 11 21 14 2
MAX LVORI 1 3 7 9 10 9 3 1 3 5 10 10 10 10 3 2 3 5
STABILITY C F F F F B A A C F F F F B A B B F
CEILING None None None 3000 2800 13200 None 3700 3700
STA PRES 28.96 28.97 28.97 28.92 28.93 28.95 28.99 28.95
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 84 66 85 68 90 70 92 71 92
TEMP 81 75 67 67 82 78 69 69 86 82 72 71 89 83 74 72 90 83
DEWPT 70 70 67 67 70 69 68 68 68 69 68 68 68 69 68 68 69 70
RH 69 84100100 67 74 97 97 55 65 87 90 50 63 82 87 50 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC FW FW FW FW SC FW FW FW FW SC FW FW SC
POP 12HR 20 20 10 0 5 0 5 5 10
RAIN SHWRS IS IS
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