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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 PM EDT Sun Oct 11 2026
NCZ003-120800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1101 PM EDT Sun Oct 11 2026
Date 10/11/26 Mon 10/12/26 Tue 10/13/26 Wed
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 60 76 55 83 59
TEMP 61 61 61 68 73 76 65 61 58 56 57 75 82 81 69 63 61 60 61
DEWPT 59 58 59 63 62 63 60 57 57 56 56 66 65 67 65 61 59 58 58
MIN/MAX RH 100 66 100 57 93
RH 93 90 93 84 68 64 84 87 96100 96 74 56 63 87 93 93 93 90
WIND DIR W NW NW NW NW NW W NW NW NW NW W SW SW W W NW NW NW
WIND SPD 5 10 11 14 11 8 3 2 2 2 2 1 4 3 1 1 1 2 2
WIND GUST 17 26 27 28 23 18
CLOUDS FW FW FW FW FW CL FW FW CL FW FW FW CL CL CL CL CL CL CL
CLOUDS(%) 18 15 16 10 6 2 9 14 4 7 15 9 2 2 1 1 3 5 4
VSBY 7 9 9 10 10 10 10 10 10 10 8 10 10 10 10
POP 12HR 20 5 0 0 0
RAIN SHWRS
MIX HGT <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 5 3 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW W SW SW
T WIND SPD 13 18 21 32 24 19 8 6 5 6 6 4 4 5 3
DISPERSION PR FR VP VP VP VP VP VP VP VP
ADI 6 12 17 70 75 52 4 3 3 3 7 9 25 19 2
MAX LVORI 6 5 5 4 1 1 6 6 9 9 8 3 2 2 6
STABILITY F E C D C B G G G G B A B B G
CEILING None None None None None None None None
STA PRES 28.01 28.08 28.10 28.13 28.16 28.18 28.15
Date 10/14Thu 10/15/26Fri 10/16/26Sat 10/17/26Sun 10/18/26
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 86 62 81 60 80 47 59 36 59
TEMP 85 75 65 63 79 72 63 61 77 65 54 47 57 48 40 37 57 49
DEWPT 68 68 62 61 69 68 62 60 66 60 48 39 40 38 33 31 38 40
RH 57 79 90 93 72 87 97 97 69 84 80 74 53 68 76 79 49 71
WIND SPD <15 <15 <15 <15 <15 15> 15> <15 <15
AVG CLOUDS CL CL CL FW SC SC SC SC SC SC SC SC SC SC FW FW FW FW
POP 12HR 0 5 20 20 10 10 5 5 5
RAIN SHWRS IS IS
$$
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