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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Sep 28 2026
NCZ003-282000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Mon Sep 28 2026
Date Mon 09/28/26 Tue 09/29/26 Wed 09/30/26
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 75 53 79 56 82
TEMP 66 74 74 66 61 57 55 54 70 77 78 67 62 58 57 57 73 80 81 72
DEWPT 55 57 57 59 58 55 54 53 59 59 58 61 58 55 54 54 60 59 60 62
MAX/MIN RH 53 99 50 92 47
RH 68 55 55 78 90 93 96 96 68 54 50 81 87 90 90 90 64 49 49 71
WIND DIR NW N N NW NW NW NW NW N S S N N N N N S S S N
WIND SPD 8 6 6 4 3 2 2 2 0 2 2 0 0 0 0 0 1 5 4 0
CLOUDS SC FW FW FW CL FW FW FW SC SC SC SC FW CL FW FW CL FW FW CL
CLOUDS(%) 42 13 9 6 3 7 22 16 41 50 31 26 9 5 7 6 3 19 10 5
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 7 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 4 4 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR NW NW NW N N N N N NE N N E E E NW NW SW SW S S
T WIND SPD 11 12 16 14 13 6 5 4 3 0 2 3 1 1 2 2 4 3 5 1
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 31 63 74 7 6 3 3 5 14 0 10 2 1 1 1 2 14 16 25 1
MAX LVORI 3 1 1 4 5 6 8 7 3 2 2 5 7 7 7 6 2 2 2 4
STABILITY B B B F G G G B A B B G G G G A A B B G
CEILING None None None None None None None None None None
STA PRES 28.06 28.06 28.12 28.13 28.18 28.16 28.21 28.21 28.27 28.23
Date Thu 10/01/26Fri 10/02/26Sat 10/03/26Sun 10/04/26
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 57 84 59 85 62 75 59 71
TEMP 61 59 82 73 63 60 83 75 65 62 73 69 61 59 70 66
DEWPT 55 54 60 63 58 57 64 66 61 59 63 62 58 57 63 64
RH 81 83 47 71 84 90 53 74 87 90 71 78 90 93 78 93
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC B1 B1 B1 B1 B1 B2 B2 B2 B2
POP 12HR 0 0 0 30 30 40 30 50
RAIN SHWRS SC IS SC SC SC SC SC SC SC
$$
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