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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Tue Sep 8 2026
VAZ024-082000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
1001 AM EDT Tue Sep 8 2026
Date Tue 09/08/26 Wed 09/09/26 Thu 09/10/26
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 83 58 91 64 93
TEMP 72 82 83 73 66 62 59 60 79 88 89 77 71 67 65 66 84 92 90 78
DEWPT 61 61 60 60 58 57 56 57 62 63 63 61 60 61 60 61 67 68 67 67
MAX/MIN RH 45 91 40 88 44
RH 68 49 46 64 75 84 90 90 56 43 42 58 68 81 84 84 57 46 47 69
WIND DIR SW SW S S N N N N SW SW S S SW SW SW W W W W W
WIND SPD 3 4 3 2 1 0 0 0 2 4 5 4 3 2 2 2 4 6 6 3
WIND GUST 14 13 12 14 17 17 13
CLOUDS FW SC SC FW SC SC FW FW SC SC FW FW FW CL CL CL FW SC SC B1
CLOUDS(%) 25 42 31 15 26 28 13 25 31 50 9 24 10 3 1 1 15 38 38 68
VSBY 10 10 10 10 9 6 7 9 7 10 7 7 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 20
RAIN SHWRS IS IS SC
TSTMS IS IS
MIX HGT 3 5 5 <1 <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 4 6 5 <1
T WIND DIR SW SW SW S SW SW NW NW SW SW SW S SW SW SW SW W W NW NW
T WIND SPD 4 5 4 3 2 2 2 1 9 9 11 6 6 5 3 4 23 17 11 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 19 36 28 2 1 1 1 1 30 62 74 3 3 3 2 5 99118 63 2
MAX LVORI 3 1 2 3 4 5 7 7 2 1 1 3 3 5 5 5 1 1 1 3
STABILITY A B B G G G G A B B B F G G G B B B B F
CEILING None None None None None None None None None
STA PRES 28.75 28.75 28.76 28.74 28.65 28.60 28.56 28.52 28.48
Date Fri 09/11/26Sat 09/12/26Sun 09/13/26Mon 09/14/26
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 66 85 63 83 65 89 64 89
TEMP 70 66 82 75 66 65 80 74 67 67 86 78 68 66 86 76
DEWPT 68 66 69 67 65 65 71 70 67 67 72 70 67 66 69 67
RH 93100 65 76 97100 74 87100100 63 76 97100 57 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B2 B1 B2 B1 B1 SC SC FW SC SC SC
POP 12HR 50 50 40 60 30 20 10 20
RAIN SHWRS SC SC IS SC SC SC SC NM SC IS IS
TSTMS IS SC IS IS SC 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