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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Sep 24 2026
NCZ003-242000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Thu Sep 24 2026
Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26
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 65 45 73 46 77
TEMP 57 61 64 59 52 49 46 46 61 72 71 60 54 50 48 48 68 77 74 62
DEWPT 57 57 56 54 50 47 45 44 47 45 46 47 45 42 41 41 47 46 49 49
MAX/MIN RH 75 96 38 79 33
RH 100 87 75 83 93 93 96 93 60 38 41 62 71 74 77 77 47 33 41 62
WIND DIR NE NE NE NE N N NW N N N N N NW NW NW NW N N N NW
WIND SPD 5 5 5 2 1 2 3 5 5 6 6 5 4 3 4 5 4 5 5 5
WIND GUST 17
CLOUDS B2 B2 B1 SC CL CL CL CL CL CL CL CL CL FW FW CL CL CL CL CL
CLOUDS(%) 85 78 64 32 2 5 5 2 2 3 3 5 2 8 6 5 4 5 5 5
VSBY 5 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 5 0 0 0
RAIN C
Obvis PF
MIX HGT 2 3 3 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR N N N N NE N N N N N N N N N NW NW NW N N N
T WIND SPD 13 13 11 6 9 6 5 6 11 10 9 5 9 8 6 5 8 10 12 8
DISPERSION VP VP VP VP PR VP VP VP PR
ADI 26 32 28 3 4 3 3 7 31 47 48 3 4 4 3 6 21 47 65 4
MAX LVORI 4 4 3 5 6 6 8 5 1 1 1 3 3 4 4 4 2 1 1 3
STABILITY D D D G G G G B B B B F F G F B B B B F
CEILING 300 None None None None None None None None None
STA PRES 28.32 28.28 28.29 28.27 28.26 28.18 28.20 28.17 28.17 28.13
Date Sun 09/27/26Mon 09/28/26Tue 09/29/26Wed 09/30/26
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 48 77 50 78 51 78 56 81
TEMP 52 50 76 66 54 52 76 67 54 53 76 68 59 58 78 72
DEWPT 46 45 49 50 48 47 52 55 51 50 59 62 56 55 66 66
RH 80 83 39 56 80 83 43 65 90 89 56 81 90 90 67 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC
POP 12HR 0 0 0 0 0 0 0 5
$$
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