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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sat Sep 26 2026
NCZ006-270800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 PM EDT Sat Sep 26 2026
Date 09/26/26 Sun 09/27/26 Mon 09/28/26 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 54 77 57 77 58
TEMP 79 69 63 60 57 57 68 74 76 69 64 62 60 60 69 75 76 70 65 63 61 62
DEWPT 46 48 49 50 50 51 54 48 48 48 51 52 52 53 56 57 57 58 58 57 56 56
MIN/MAX RH 87 37 82 52 90
RH 31 47 60 69 77 80 61 40 37 47 63 70 75 78 63 54 52 66 78 81 84 81
WIND DIR N N N W NW W NW NW NW NW NW W W W NW NW NW N N N N N
WIND SPD 8 3 3 3 4 4 8 10 10 5 3 1 2 2 4 4 3 0 0 0 0 0
CLOUDS CL CL CL FW FW FW FW FW FW SC FW FW FW FW FW SC SC SC SC FW FW FW
CLOUDS(%) 1 2 5 17 15 10 13 19 20 27 14 16 11 21 19 32 47 46 34 17 15 9
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 6 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR N N N NW W W NW NW NW NW NW NW W W NW NW NW W
T WIND SPD 19 4 4 4 5 6 14 14 17 6 12 12 5 4 8 9 11 3
DISPERSION VP VP VP VP PR VP VP VP VP VP VP VP
ADI 135 2 2 2 3 7 49 60 73 3 6 6 3 5 31 56 67 2
MAX LVORI 1 3 3 4 5 5 1 1 1 2 3 3 4 5 1 1 1 3
STABILITY B G G G F B B C C F G G G B B B B F
CEILING None None None None None None None None None None
STA PRES 29.25 29.28 29.25 29.22 29.18 29.22 29.25 29.28 29.28
Date 09/29Wed 09/30/26Thu 10/01/26Fri 10/02/26Sat 10/03/26
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 83 59 87 62 88 65 86 66 80
TEMP 79 72 62 60 85 76 66 63 86 78 69 66 84 77 69 66 78 73
DEWPT 59 62 61 59 62 62 61 63 64 64 64 65 67 66 66 65 68 67
RH 50 71 97 96 46 62 84100 48 62 84 97 57 69 90 97 71 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL CL FW SC SC SC FW SC SC B1 SC SC SC B1 B1
POP 12HR 0 0 0 0 0 5 20 20 40
RAIN SHWRS IS IS IS IS 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