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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EDT Sat Oct 24 2026
NCZ018-250800-
RAWS 311941
36.22N 81.63W Elev. 3254 ft
831 PM EDT Sat Oct 24 2026
Date 10/24/26 Sun 10/25/26 Mon 10/26/26 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 37 58 35 65 41
TEMP 42 39 39 37 48 55 56 48 44 41 39 38 52 61 63 51 47 45 44 43
DEWPT 39 37 37 37 42 41 41 43 42 40 37 35 40 40 42 44 43 40 38 36
MIN/MAX RH 100 55 96 44 85
RH 89 92 92100 80 59 57 83 93 96 92 89 63 46 46 77 86 82 79 76
WIND DIR E E E E E E E E NE NW NW NW N N N NW NW NW NW NW
WIND SPD 3 3 3 2 4 4 4 2 2 2 2 2 0 0 0 2 2 1 1 1
CLOUDS FW FW B1 B1 SC FW CL CL FW SC FW CL FW CL CL FW FW FW FW CL
CLOUDS(%) 6 18 67 63 42 13 5 5 20 32 8 0 6 1 1 10 13 12 8 2
VSBY 10 10 10 4 10 10 10 10 10 7 2 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
Obvis PF
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1
T WIND DIR E E E E E E NE E E E NW NW N N NW NW NW NW NW NW
T WIND SPD 3 3 9 6 5 3 2 5 5 2 3 5 4 2 4 3 8 8 9 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 4 7 14 11 7 3 3 1 2 6 8 8 12 2
MAX LVORI 6 7 6 8 4 2 3 5 6 8 7 5 3 2 2 4
STABILITY G G F B B B B G G G G B A A A G
CEILING None None None None None None None None None
STA PRES 27.28 27.28 27.31 27.24 27.23 27.18 27.16 27.10
Date 10/27Wed 10/28/26Thu 10/29/26Fri 10/30/26Sat 10/31/26
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 66 42 61 42 66 44 69 47 67
TEMP 65 54 46 44 60 53 46 44 64 55 47 46 67 59 50 48 65 58
DEWPT 43 46 44 44 48 48 45 44 50 49 46 44 49 50 48 47 53 53
RH 45 74 93100 64 83 96100 60 80 96 93 52 72 93 96 65 83
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW SC B1 B1 B1 B1 SC FW FW FW FW FW FW SC SC SC
POP 12HR 0 0 0 0 0 0 0 5 5
$$
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