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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Thu Oct 15 2026
NCZ003-160800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
431 PM EDT Thu Oct 15 2026
Date 10/15/26 Fri 10/16/26 Sat 10/17/26 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 62 84 47 58 36
TEMP 83 73 68 65 63 62 75 82 81 68 58 53 49 47 52 55 56 48 44 41 38 37
DEWPT 71 70 67 65 63 62 68 67 66 63 52 46 44 42 44 41 39 36 34 32 30 29
MIN/MAX RH 100 58 84 53 75
RH 67 90 97100100100 79 61 60 84 80 77 83 83 74 59 53 63 68 70 73 72
WIND DIR SE SE N N N N S SW SW NW NW NW NW N N N N N N N N N
WIND SPD 4 1 0 0 0 0 3 6 5 10 16 13 12 12 14 13 12 8 6 3 2 2
WIND GUST 24 29 28 28 27 28 24 24 19
CLOUDS SC SC SC SC SC SC FW FW FW SC SC B1 B1 SC SC FW FW FW CL CL CL CL
CLOUDS(%) 31 31 33 38 40 28 24 18 23 45 36 56 53 43 35 18 17 9 5 4 5 4
VSBY 10 10 10 9 7 4 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 10 20 10 5
MIX HGT 1 <1 <1 <1 <1 <1 2 4 3 1 2 2 2 3 4 5 4 <1
T WIND DIR S SE SE SE SW W SW SW W NW NW NW NW N N N N N
T WIND SPD 6 3 3 2 1 2 8 16 19 26 36 34 27 34 32 28 25 17
DISPERSION VP VP VP VP FR GD FR FR PR PR VP VP
ADI 13 2 2 1 1 2 18 81 67 24 49 46 37108 90114 98 12
MAX LVORI 3 7 10 10 10 9 3 1 1 4 3 3 3 4 3 1 1 3
STABILITY B G G G G A B B B D D D D C D C C E
CEILING None None None None None None None None None
STA PRES 28.17 28.12 28.06 27.97 28.06 28.15 28.32 28.41
Date 10/18Mon 10/19/26Tue 10/20/26Wed 10/21/26Thu 10/22/26
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 59 38 64 43 70 46 71 46 70
TEMP 57 48 41 39 62 54 46 44 67 59 50 47 68 60 50 47 68 60
DEWPT 34 36 32 32 45 46 42 41 50 51 46 44 51 52 47 45 54 54
RH 42 63 70 76 54 74 86 89 54 75 86 89 54 75 89 93 61 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL FW FW FW FW FW FW FW FW FW FW CL CL FW FW
POP 12HR 5 5 5 5 0 0 0 0 0
$$
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