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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 AM EDT Thu Sep 24 2026
NCZ003-250800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
101 AM EDT Thu Sep 24 2026
Date 09/23/26 Thu 09/24/26 Fri 09/25/26 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 53 63 46 72 46
TEMP 55 54 53 54 59 61 56 52 50 48 47 60 70 69 59 53 50 48 48
DEWPT 55 54 53 54 54 53 52 50 47 45 44 45 43 44 45 43 42 41 41
MIN/MAX RH 100 72 92 37 80
RH 100100100100 83 75 86 93 89 89 89 58 38 40 60 69 74 77 77
WIND DIR NE NE NE NE NE NE NE NE NE N N N N NE N N N NW NW
WIND SPD 14 14 12 10 9 8 6 6 8 6 6 5 5 5 3 4 4 5 5
WIND GUST 21 19
CLOUDS B2 OV B2 B2 B1 B1 SC FW CL CL CL CL CL FW CL FW CL CL CL
CLOUDS(%) 86 91 80 75 62 62 29 7 4 5 0 1 3 6 5 6 4 2 1
VSBY 6 7 4 5 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 60 5 0 0
RAIN L D L S
RAIN SHWRS
Obvis PF PF PF
MIX HGT <1 <1 1 2 3 3 <1 <1 <1 <1 <1 3 4 5 <1
T WIND DIR NE NE NE NE NE NE NE NE N N N N NE N NE
T WIND SPD 13 14 14 16 12 13 4 5 5 5 4 10 11 12 2
DISPERSION GD GD PR PR PR PR VP VP VP PR
ADI 12 13 23 30 30 53 2 3 3 3 5 38 55 68 1
MAX LVORI 5 5 5 4 4 3 6 6 6 6 6 1 1 1 3
STABILITY D D D D D B F F F F B B B B G
CEILING 600 700 None None None None None None
STA PRES 29.18 29.18 29.11 29.13 29.12 29.10 29.03
Date 09/26Sun 09/27/26Mon 09/28/26Tue 09/29/26Wed 09/30/26
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 78 49 77 51 77 52 79 56 81
TEMP 77 62 53 50 77 63 54 52 77 63 56 53 78 67 59 57 80 70
DEWPT 46 48 46 46 49 50 48 48 52 56 52 51 57 61 57 56 64 64
RH 33 60 77 86 37 62 80 86 42 78 86 93 48 81 93 96 58 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL 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 0 10
$$
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