Chemical Downwind Message for KEDW

This product is derived from 10 SEP 2026 06Z NAM model data.

DD/HH  DDD FFF A TT H W C
10/06  043 009 2 28 4 - 0
10/08  066 009 2 24 5 - 0
10/10  051 009 3 23 5 - 0
10/12  038 009 3 22 6 - 0
10/14  037 009 3 22 5 - 0
10/16  066 007 3 29 3 - 0
10/18  071 009 3 36 2 - 0
10/20  065 014 3 39 1 - 0
10/22  075 022 3 39 1 - 0
11/00  091 027 3 38 1 - 0
11/02  091 022 3 34 2 - 0
11/04  069 014 2 29 3 - 0
11/06  056 014 2 26 3 - 0
11/08  061 014 2 24 4 - 0
11/10  060 014 2 22 4 - 0
11/12  057 016 2 21 4 - 0
11/14  058 014 2 21 3 - 0
11/16  078 020 2 29 1 - 0
11/18  091 024 2 35 1 - 0
11/20  087 027 2 37 1 - 0
11/22  083 029 3 37 1 - 0
12/00  075 029 3 36 1 - 0
12/02  058 025 3 30 3 - 0
12/04  052 022 4 26 4 - 0
12/06  051 018 4 23 5 - 0
12/08  051 016 4 20 6 - 0
12/10  051 012 4 18 6 - 0
12/12  047 012 4 17 6 - 0
12/14  046 011 5 16 6 - 0
12/16  057 018 5 25 3 - 0
12/18  051 024 5 31 2 - 0
12/20  049 031 6 34 1 - 0
12/22  049 033 6 33 1 - 0
13/00  051 033 6 31 1 - 0
13/02  055 025 5 26 3 - 0
13/04  055 020 4 21 5 - 0
13/06  051 016 4 18 6 - 0
13/08  054 014 3 16 6 - 0
13/10  066 014 3 14 6 - 0
13/12  051 014 3 11 6 - 0
13/14  047 014 3 11 7 - 0
13/16  068 018 3 18 4 - 0
13/18  075 024 3 25 2 - 0

Legend:

DD/HH  DDD FFF A TT H W C

DD   Valid Time Forecast Day (UTC)
HH   Valid Time Forecast Hour (UTC)
DDD  Surface Wind Direction (to a point, not from; e.g. 090 means towards the east
FFF  Wind Speed (km/hr)
A    Air Stability Code (from Lifted Index)
      LI   <= -1.5       A = 1
     -1.5  <  LI <  1.5  A = 2
      1.5  <= LI <  4.5  A = 3
      4.5  <= LI <  7.5  A = 4
      7.5  <= LI < 10.5  A = 5
     10.5  <= LI < 13.5  A = 6
     13.5  <= LI         A = 7
TT   Air Temperature Code (deg C) (temperatures greater than 50 are encoded as 50,
     temperatures less than -49 are encoded as 99, temperatures less than 0 are
     encoded by adding 50 to the absolute value of the temperature.
H    Relative Humidity Code (encoded with the 10s digit of the value where 100% = 9
     for example, 19% is 1, 56% is 5, 6% is 0
W    Significant Weather Code (Fog or BR is 4, Rain and Freezing Rain is 6,
     Mixed/Ice and Snow is 7, TRW or Svr TRW is 9, no precip is '-'.
     ***Note*** Code 9 is not evaluated in this output.
C    Total Cloud Cover is evaluated on a column directly above the model grid point
     and does not account for a horizon to horizon view.  If any of low, mid or hi cloud
     cover is evaluated as greater than 50%, cloud cover is encoded 2, otherwise
     it is encoded as 0.