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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Mon Sep 7 2026
NCZ006-072000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
731 AM EDT Mon Sep 7 2026
Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26
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 85 60 87 61 90
TEMP 64 77 83 84 76 69 64 61 61 78 85 86 76 68 64 61 63 80 88 89 82
DEWPT 62 61 58 57 59 61 60 59 59 58 56 55 56 58 59 60 61 63 61 63 64
MAX/MIN RH 39 96 34 97 41
RH 93 58 43 40 56 76 87 93 93 50 37 35 50 70 84 97 93 56 40 42 55
WIND DIR NE E E E E E SE N N E E E N N N N N SW SW SW S
WIND SPD 2 6 6 5 2 2 1 0 0 3 3 2 0 0 0 0 0 3 5 5 3
CLOUDS CL FW FW SC SC FW CL CL SC SC FW SC SC FW SC FW FW FW FW FW FW
CLOUDS(%) 3 11 18 29 33 20 4 3 45 31 25 31 49 23 27 24 21 22 15 18 13
VSBY 9 10 10 10 10 10 10 9 8 10 10 10 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 0 0
MIX HGT <1 4 6 6 <1 <1 <1 <1 <1 4 5 6 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NE E E E E E E E E E E E SE SE S S S SW SW SW S
T WIND SPD 4 14 11 9 11 5 3 2 2 9 4 2 4 3 3 2 2 8 6 9 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 70 78 71 5 3 2 1 2 48 30 17 2 2 2 1 2 36 48 63 3
MAX LVORI 9 1 1 1 3 4 8 10 9 1 1 2 2 3 6 10 9 1 1 1 3
STABILITY A B B A G G G G A A A A F G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 29.50 29.48 29.57 29.61 29.66 29.62 29.64 29.65 29.64 29.53
Date Thu 09/10/26Fri 09/11/26Sat 09/12/26Sun 09/13/26
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 67 92 68 90 65 87 66 91
TEMP 70 69 92 84 73 69 88 80 69 66 85 79 70 68 89 83
DEWPT 65 67 68 69 70 69 68 68 68 66 70 70 69 68 69 68
RH 84 93 46 61 90100 52 67 97100 61 74 97100 52 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW SC SC SC B1 B1 SC B1 B1 SC SC SC FW
POP 12HR 0 10 10 30 40 40 20 10
RAIN SHWRS SC SC SC SC IS
TSTMS IS 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