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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon Sep 7 2026
VAZ046-072000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
131 PM 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 82 59 85 60 89
TEMP 80 82 75 66 62 59 61 77 83 84 74 67 63 60 62 79 87 88 81
DEWPT 60 58 60 59 59 58 60 61 59 58 59 57 57 57 59 65 64 64 64
MAX/MIN RH 45 98 40 94 44
RH 51 44 60 78 90 96 97 58 44 41 59 70 81 90 90 62 46 45 56
WIND DIR E E E E SE NW N S S SE SE S S SW SW SW SW SW S
WIND SPD 6 5 3 3 1 1 1 2 3 3 2 3 3 3 4 8 9 9 6
CLOUDS FW FW SC SC FW FW FW SC SC B1 FW FW FW FW FW FW FW FW FW
CLOUDS(%) 24 22 26 40 22 12 19 37 50 55 21 17 25 19 17 14 17 14 6
VSBY 10 10 10 10 9 4 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 6 7 <1 <1 <1 <1 <1 4 5 6 <1 <1 <1 <1 <1 3 6 6 <1
T WIND DIR NE NE E E E NE E E SE SE SE S S SW SW SW SW SW S
T WIND SPD 9 8 4 2 1 2 1 2 2 3 3 4 3 3 3 13 11 12 5
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 63 58 2 1 1 1 1 11 15 22 2 2 2 2 3 56 72 84 3
MAX LVORI 1 1 3 5 8 10 10 2 2 2 3 3 5 7 6 1 1 1 3
STABILITY B B G G G G A A A B G G G G A B B B F
CEILING None None None None None None None None None
STA PRES 29.43 29.51 29.55 29.59 29.55 29.57 29.57 29.55 29.44
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 66 87 64 87 65 90
TEMP 70 69 92 82 71 67 84 78 67 65 84 79 69 67 88 81
DEWPT 64 66 67 69 68 67 65 64 63 64 68 67 66 67 68 66
RH 81 90 44 65 90100 53 62 87 97 59 67 90100 52 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW B1 B1 SC SC SC SC SC SC SC SC SC SC FW
POP 12HR 0 30 30 20 20 20 10 5
RAIN SHWRS SC SC IS IS IS 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