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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sat Oct 17 2026
NCZ003-180800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
231 PM EDT Sat Oct 17 2026
Date 10/17/26 Sun 10/18/26 Mon 10/19/26 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 36 62 38 68 43
TEMP 57 49 44 41 38 38 52 60 61 51 44 41 39 39 56 65 67 56 49 46 44 45
DEWPT 38 36 34 32 29 27 29 31 35 35 32 29 27 27 34 39 43 41 38 36 34 33
MIN/MAX RH 69 34 62 38 69
RH 49 61 68 70 70 64 41 33 38 54 62 62 62 62 43 38 42 57 66 68 68 62
WIND DIR N N N N NW NW NE E E N N N N N N N N N N NW NW NW
WIND SPD 12 8 5 3 3 3 4 5 4 1 1 1 2 4 4 4 4 3 3 3 3 5
WIND GUST 23 19 16
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW CL CL CL CL
CLOUDS(%) 1 1 1 2 3 2 4 2 2 2 2 2 1 2 4 10 12 8 4 5 5 5
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 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N N N N N N NE NE NE NE N N N N NE NE NE N
T WIND SPD 26 16 10 8 6 6 14 13 11 3 4 5 5 6 13 13 14 5
DISPERSION PR PR VP VP VP VP VP VP VP VP VP VP
ADI 104 11 5 4 3 7 47 56 40 2 2 3 3 7 32 53 49 3
MAX LVORI 1 2 3 3 3 3 1 1 1 2 3 3 3 3 1 1 1 3
STABILITY C E F G G B B B B G G G G B B B B G
CEILING None None None None None None None None None None
STA PRES 28.34 28.46 28.51 28.57 28.51 28.51 28.46 28.43 28.34
Date 10/20Wed 10/21/26Thu 10/22/26Fri 10/23/26Sat 10/24/26
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 74 44 71 44 73 46 72 45 70
TEMP 71 59 49 45 69 60 48 46 70 62 51 48 69 58 50 47 67 59
DEWPT 40 42 38 36 45 46 43 40 46 47 44 41 48 48 45 43 51 50
RH 32 53 66 70 42 60 83 79 42 58 77 77 47 69 83 86 56 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW
POP 12HR 0 0 0 0 0 0 0 5 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