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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sat Aug 29 2026
NCZ003-300800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
401 PM EDT Sat Aug 29 2026
Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue
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 66 86 67 92 70
TEMP 82 76 70 68 67 68 77 83 85 79 72 70 67 69 86 90 89 81 76 72 71 72
DEWPT 71 70 69 68 67 68 71 71 71 71 69 68 66 66 69 67 69 69 68 66 65 65
MIN/MAX RH 100 63 94 47 83
RH 69 82 97100100100 82 67 63 77 90 93 97 90 57 47 52 67 76 81 81 79
WIND DIR SE E N N N N S S S N N N N NW NW NW W N N N NW NW
WIND SPD 4 1 0 0 0 0 1 3 3 0 0 0 0 2 1 1 2 0 0 0 1 2
CLOUDS SC FW FW SC B1 B1 B1 FW SC FW FW FW FW FW FW FW SC SC FW FW FW FW
CLOUDS(%) 31 17 21 39 53 61 51 17 35 20 8 11 19 21 8 24 28 29 20 8 11 9
VSBY 10 10 10 7 5 3 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 10 0 5 0
RAIN SHWRS IS
TSTMS IS
Obvis PF PF PF PF
MIX HGT 4 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 4 7 5 <1
T WIND DIR SE SE SE SE SE NE SE SW S S SW W W NW NW NW NW NW
T WIND SPD 10 8 4 2 2 1 2 1 1 4 2 2 2 5 12 8 8 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 58 4 2 1 1 1 7 6 5 2 1 1 1 6 69 67 51 2
MAX LVORI 3 5 8 10 10 10 4 3 3 4 7 7 7 6 1 1 1 3
STABILITY A G G G F B B A A G G G G A A A A G
CEILING None 1000 None None None None None None None
STA PRES 28.30 28.32 28.33 28.27 28.27 28.25 28.27 28.23
Date 09/01Wed 09/02/26Thu 09/03/26Fri 09/04/26Sat 09/05/26
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 94 72 95 72 94 71 91 68 88
TEMP 93 83 75 74 92 85 75 74 91 84 74 73 89 81 71 70 85 79
DEWPT 67 70 67 67 68 70 68 67 69 71 69 68 69 69 67 66 68 68
RH 43 65 76 79 46 61 79 79 49 65 84 84 52 67 87 87 57 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC FW FW FW SC FW FW SC SC FW FW B1 SC SC SC B1
POP 12HR 5 0 5 5 20 10 40 20 40
RAIN SHWRS IS SC IS SC
TSTMS 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