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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Oct 21 2026
NCZ003-220800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Wed Oct 21 2026
Date 10/21/26 Thu 10/22/26 Fri 10/23/26 Sat
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 43 70 42 66 41
TEMP 54 50 48 46 59 67 68 59 53 49 47 42 58 64 65 55 47 45 42 41
DEWPT 46 44 43 39 42 34 35 41 40 39 38 41 48 49 47 50 47 45 42 41
MIN/MAX RH 92 28 100 53 100
RH 74 80 83 76 53 29 29 51 61 68 71 96 69 58 52 83100100100100
WIND DIR N N N N N NE NE N N N N N NE NE E E NE NE NE NE
WIND SPD 3 4 4 5 5 4 3 3 5 5 4 4 6 5 6 5 6 6 6 5
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL
CLOUDS(%) 0 0 0 0 0 0 0 0 0 1 1 0 2 3 1 2 3 5 4 3
VSBY 10 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 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR NW NW NW NW N N N N NW N N N NE NE NE NE
T WIND SPD 2 3 3 4 8 9 8 6 5 4 4 4 13 10 11 5
DISPERSION VP VP VP VP PR PR VP PR PR PR PR
ADI 1 2 2 5 19 44 30 3 3 2 2 5 45 47 56 3
MAX LVORI 3 5 5 4 2 1 1 2 3 3 3 7 1 1 1 5
STABILITY G F F B B B B G F F F B B B B F
CEILING None None None None None None None None None
STA PRES 29.07 29.05 29.08 29.06 29.11 29.15 29.23 29.23
Date 10/24Sun 10/25/26Mon 10/26/26Tue 10/27/26Wed 10/28/26
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 61 41 64 41 69 43 71 47 67
TEMP 59 51 43 42 61 53 45 42 66 56 46 44 69 60 49 48 65 58
DEWPT 43 46 43 42 47 49 45 42 46 49 46 43 48 52 49 47 50 53
RH 55 83100100 60 86100100 48 77100 96 47 75100 96 58 83
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL FW FW CL CL CL CL FW FW FW FW SC SC SC SC
POP 12HR 0 0 0 0 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