I was able to determine a little more of Allison's history based upon the CARQ positions from the model file which I don't think get reviewed after 24 hours. (So they are subject to being off of course and are not official values for the storm.) For each new CARQ position in the model file the 6, 12, 18, and 24 hour ago positions are also posted again. At that time they might be adjusted. I don't think they change them after that because there is no reason to and the model start positions don't change. Best track data is what gets adjusted later. You can add this to the other file you posted to get a little more track. For reference, I also included two best track positions that line up with the previous file you posted.
Here is the Google Earth file of the below:
http://tropicalatlantic.com/temp/2011/06-01/Tropical_Storm_Allison_Early_On.kmz
The text from the Google Earth file:
June 4, 2001 6Z
CARQ (from model file)
23.4N 93.7W
No intensity noted.
Invest
June 4, 2001 12Z
CARQ (from model file)
24.0N 94.0W
20kts
Invest
June 4, 2001 18Z
CARQ (from model file)
24.7N 94.3W
20kts
Invest
June 5, 2001 0Z
CARQ (from model file)
25.4N 94.6W
25 kts
Invest
June 5, 2001 6Z
CARQ (from model file)
26.3N 94.8W
25kts
June 5, 2001 12Z
BEST (best track)
27.5N 95.0W
40kts
1007mb
Tropical Storm
June 5, 2001 18Z
BEST (best track)
28.5N 95.3W
50kts
1002mb
Tropical Storm
The raw data:
AL, 01, 2001060506, 01, CARQ, -24, 234N, 937W, 0, 0, XX, 35, AAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, L, 0, X, 0, 0, INVEST , ,
AL, 01, 2001060506, 01, CARQ, -18, 240N, 940W, 20, 0, XX, 35, AAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, L, 0, X, 0, 0, INVEST , ,
AL, 01, 2001060506, 01, CARQ, -12, 247N, 943W, 20, 0, XX, 35, AAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, L, 0, X, 339, 8, INVEST , ,
AL, 01, 2001060506, 01, CARQ, -6, 254N, 946W, 25, 0, XX, 35, AAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, L, 0, X, 0, 0, INVEST , ,
AL, 01, 2001060518, 01, CARQ, -12, 263N, 948W, 25, 0, XX, 35, AAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, L, 0, X, 349, 10, ALLISON , ,
AL, 01, 2001060512, , BEST, 0, 275N, 950W, 40, 1007, TS, 0, , 0, 0, 0, 0,
AL, 01, 2001060518, , BEST, 0, 285N, 953W, 50, 1002, TS, 35, NEQ, 175, 175, 0, 30, 1012, 120, 50, 0, 0,
Extracted from these two files:
aal012001.dat.gz
bal012001.dat.gz
In:
ftp://ftp.tpc.ncep.noaa.gov/atcf/archive/2001/ |