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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sat Sep 26 2026
NCZ003-270800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
401 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 52 74 54 75 53
TEMP 75 67 61 58 55 55 65 71 72 66 61 59 57 57 67 72 74 66 61 58 56 57
DEWPT 49 50 49 49 48 48 52 47 49 47 50 51 50 50 54 57 57 56 55 54 53 53
MIN/MAX RH 82 43 84 56 94
RH 40 54 65 72 77 77 63 42 44 50 67 75 77 77 63 59 55 70 81 86 90 86
WIND DIR NW NW N NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 9 9 10 8 10 9 12 12 12 8 5 4 5 6 9 6 6 4 3 2 2 2
WIND GUST 19 17 14 16 19
CLOUDS CL CL CL FW FW FW FW FW FW SC FW FW SC FW FW FW FW FW FW FW FW FW
CLOUDS(%) 1 1 0 9 7 7 6 15 16 29 6 19 26 23 15 24 23 12 8 8 7 6
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 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR N N N N NW NW NW N NW NW NW NW NW NW NW NW NW NW
T WIND SPD 18 11 11 9 9 10 23 21 21 11 19 11 11 13 19 16 17 9
DISPERSION PR FR PR FR PR PR VP PR VP VP VP VP
ADI 55 8 8 6 6 8 59 72 64 8 9 5 5 14 56 79 87 4
MAX LVORI 1 3 4 4 4 5 1 1 1 3 3 4 5 4 1 1 1 3
STABILITY C E E E E C C C C E F F F B C B B F
CEILING None None None None None None None None None
STA PRES 28.08 28.04 28.02 27.99 28.01 28.02 28.06 28.06
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 79 57 81 59 83 62 81 63 77
TEMP 76 69 60 58 79 71 62 60 80 73 65 63 79 73 66 64 74 70
DEWPT 59 63 58 57 64 64 58 58 66 67 63 63 68 69 64 63 68 68
RH 56 81 93 96 60 79 87 93 62 81 93100 69 87 93 97 82 93
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL CL CL SC FW SC SC SC SC SC SC B1 B1 B1 B1 B2
POP 12HR 0 0 0 0 0 5 20 30 50
RAIN SHWRS IS IS SC SC 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