T Number for Ivan rises to T5.5/5.5

[cycloneye]

07/1145 UTC 11.6N 59.2W T5.5/5.5 IVAN -- Atlantic Ocean

Below is the chart of the T numbers and the wind profile by satellite estimates.

Code: Select all

CI        MWS         MSLP           MSLP          Saffir-Simpson   
Number    (Knots)    (Atlantic)    (NW Pacific)         Category     
 1         25 KTS                                     (Approximate)
 1.5       25 KTS
 2         30 KTS      1009 mb        1000 mb
 2.5       35 KTS      1005 mb         997 mb
 3         45 KTS      1000 mb         991 mb
 3.5       55 KTS       994 mb         984 mb
 4         65 KTS       987 mb         976 mb        1  (64-83 KTS)
 4.5       77 KTS       979 mb         966 mb        1  (64-83 KTS); 2  (84-96 KTS)
 5         90 KTS       970 mb         954 mb        2  (84-96 KTS); 3  (97-113 KTS)
 5.5      102 KTS       960 mb         941 mb        3  (97-113 KTS)
 6        115 KTS       948 mb         927 mb        4  (114-135 KTS)
 6.5      127 KTS       935 mb         914 mb        4  (114-135 KTS)
 7        140 KTS       921 mb         898 mb        5  (136+  KTS)
 7.5      155 KTS       906 mb         879 mb        5  (136+  KTS)
 8        170 KTS       890 mb         858 mb        5  (136+  KTS)

CI -- Current Intensity
MWS -- Mean Wind Speed
MSLP -- Mean Sea Level Atmospheric Pressure in Millibars

[ColinD]

Yup, could see that coming. The temp difference between the eye and the surrounding ring of cloudtops has increased.

[wx247]

Maybe the next advisory will include these T Numbers.

[ColinD]

Maybe the next advisory will include these T Numbers.

T5.5 = 102 KTS =~ 115 mph.

[AussieMark]

T5.5 is close enough to what he is now 115 mph.

right

???

[ColinD]

T5.5 is close enough to what he is now 115 mph.

right

???

Exactly.

[x-y-no]

An SFMR mission will be on station this early afternoon, so we should have some good surface data in the 2pm.