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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 17 2026
NCZ003-172000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Sat Oct 17 2026
Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 57 36 60 37 67
TEMP 52 56 55 48 44 41 38 37 50 58 58 49 44 41 39 38 55 63 66 56
DEWPT 45 40 39 34 33 31 29 27 30 32 35 34 31 29 27 28 37 41 45 43
MAX/MIN RH 54 70 37 66 44
RH 77 55 55 58 65 67 70 67 46 37 42 56 60 62 62 67 51 44 47 62
WIND DIR N N N N N N N N NE NE E NE N N N N N NE N N
WIND SPD 13 12 11 8 5 4 4 5 6 6 6 2 3 2 3 5 4 4 4 2
WIND GUST 26 24 24
CLOUDS B2 SC CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW FW FW FW
CLOUDS(%) 73 28 2 3 1 3 3 2 2 3 2 5 5 6 7 11 8 11 10 11
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 0 0 0
RAIN SHWRS
MIX HGT 3 4 4 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N N N N N N N N NE NE NE NE NE N N N NE NE NE N
T WIND SPD 28 24 24 14 10 8 6 6 14 14 11 4 5 5 5 5 13 12 13 6
DISPERSION PR PR VP VP VP VP VP VP VP
ADI 71 94 90 10 5 4 3 7 46 66 43 2 3 3 3 6 33 47 46 3
MAX LVORI 3 1 1 2 3 3 3 3 1 1 1 3 3 3 3 3 1 1 1 3
STABILITY D C C E F F F 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 28.27 28.35 28.46 28.52 28.59 28.54 28.55 28.50 28.48 28.39
Date Tue 10/20/26Wed 10/21/26Thu 10/22/26Fri 10/23/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 43 72 45 72 44 72 47 72
TEMP 46 44 70 60 50 47 69 60 49 46 70 62 52 48 70 62
DEWPT 38 35 43 45 39 38 47 48 44 42 49 52 47 45 52 51
RH 73 70 38 58 66 71 45 64 83 86 47 70 83 89 53 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 0 0 0 0 5 5 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