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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
532 PM EDT Thu Aug 27 2026
NCZ003-280800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
532 PM EDT Thu Aug 27 2026
Date 08/27/26 Fri 08/28/26 Sat 08/29/26 Sun
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 64 85 64 83 67
TEMP 75 69 67 65 66 78 83 79 74 68 67 65 66 75 80 82 76 69 68 67 68
DEWPT 72 69 67 65 66 71 71 72 71 68 67 65 66 71 71 72 71 69 68 67 68
MIN/MAX RH 100 66 100 71 100
RH 90100100100100 79 67 79 90100100100100 87 74 72 85100100100100
WIND DIR N N N NW NW NE E N N N N N N E SE SE N N N N N
WIND SPD 0 0 0 1 2 1 2 1 0 0 0 0 1 2 4 3 0 0 0 0 0
CLOUDS B1 SC SC SC B1 B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 SC SC SC B1 B1
CLOUDS(%) 67 33 47 45 53 59 70 69 64 68 65 75 78 59 53 53 31 37 37 53 51
VSBY 10 10 9 5 4 10 10 8 10 10 10 10 10 10 10 10 10
POP 12HR 20 70 20 30 10
RAIN SHWRS IS NM SC IS IS IS IS SC SC
TSTMS IS SC SC IS IS SC
MIX HGT <1 <1 <1 <1 <1 2 4 2 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR S SW SW W NW W S SE SW SW W NW NW NE SE SE S
T WIND SPD 2 1 2 2 1 2 1 3 4 2 2 2 2 2 2 2 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 1 7 6 9 2 1 1 1 2 7 8 11 3
MAX LVORI 7 10 10 10 10 4 3 4 6 10 10 10 9 5 3 3 5
STABILITY F G F F B B B B F F F F B B C B G
CEILING None None 4700 4400 4200 3400 1400 None None
STA PRES 28.14 28.14 28.18 28.17 28.20 28.22 28.27 28.25
Date 08/30Mon 08/31/26Tue 09/01/26Wed 09/02/26Thu 09/03/26
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 86 67 90 69 92 70 92 70 91
TEMP 83 78 69 68 87 81 72 71 89 83 73 72 90 83 73 72 89 82
DEWPT 71 71 68 67 69 70 67 67 69 70 68 67 69 71 69 68 70 72
RH 67 79 97 97 55 69 84 87 52 65 84 84 50 67 87 87 54 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW FW FW FW FW SC FW FW FW SC SC SC FW B1
POP 12HR 10 0 5 0 5 0 10 20 30
RAIN SHWRS IS SC
TSTMS SC
$$
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