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Post-Tropical Cyclone Tammy Forecast Discussion Number 39
Issued at 1100 PM AST Sat Oct 28 2023
000
WTNT45 KNHC 290243
TCDAT5
Tropical Storm Tammy Discussion Number 39
NWS National Hurricane Center Miami FL
AL202023
1100 PM AST Sat Oct 28 2023
Tammy's second time as a tropical cyclone appears near its end.
While some sheared puffs of moderate convection have attempted to
re-form off to the northeast of an increasingly elongated
circulation center...
Tropical Storm Tammy Forecast Discussion Number 37
Tropical Storm Tammy Forecast Discussion Number 37
Issued at 1100 AM AST Sat Oct 28 2023
213
WTNT45 KNHC 281449
TCDAT5
Tropical Storm Tammy Discussion Number 37
NWS National Hurricane Center Miami FL
AL202023
1100 AM AST Sat Oct 28 2023
Tammy has not changed much this morning. The impact of strong
westerly wind shear is evident, with an exposed low-level center
apparent in visible satellite imagery. Modest deep convection
remains confined to...
Tropical Storm Tammy Forecast Discussion Number 34
Tropical Storm Tammy Forecast Discussion Number 34
Issued at 500 PM AST Fri Oct 27 2023
000
WTNT45 KNHC 272034
TCDAT5
Tropical Storm Tammy Discussion Number 34
NWS National Hurricane Center Miami FL
AL202023
500 PM AST Fri Oct 27 2023
Tammy's cloud pattern hasn't changed much on satellite images since
earlier today. There has been some cooling of the convective cloud
tops to about -60 deg C near the center of circulation along with a
few ...
Tropical Storm Tammy Forecast Discussion Number 35
Tropical Storm Tammy Forecast Discussion Number 35
Issued at 1100 PM AST Fri Oct 27 2023
000
WTNT45 KNHC 280236
TCDAT5
Tropical Storm Tammy Discussion Number 35
NWS National Hurricane Center Miami FL
AL202023
1100 PM AST Fri Oct 27 2023
Strong southwesterly shear is taking a toll on Tammy tonight. Its
limited convection is confined to the northeastern portion of its
circulation, which is partially exposed in proxy-visible satellite
images....
Tropical Storm Tammy Forecast Discussion Number 36
Tropical Storm Tammy Forecast Discussion Number 36
Issued at 500 AM AST Sat Oct 28 2023
000
WTNT45 KNHC 280845
TCDAT5
Tropical Storm Tammy Discussion Number 36
NWS National Hurricane Center Miami FL
AL202023
500 AM AST Sat Oct 28 2023
Tammy continues to be a sheared system with limited convection this
morning. Cloud tops have been warming since last evening, with only
occasional burst near the center. A partial scatterometer pass that
arrived...
Tropical Storm Tammy Forecast Discussion Number 33
Tropical Storm Tammy Forecast Discussion Number 33
Issued at 1100 AM AST Fri Oct 27 2023
000
WTNT45 KNHC 271443
TCDAT5
Tropical Storm Tammy Discussion Number 33
NWS National Hurricane Center Miami FL
AL202023
1100 AM AST Fri Oct 27 2023
Tammy appears to have become separate from the frontal zone in
which it was formerly embedded. Satellite imagery shows that
moderately deep convection has developed in a fairly symmetrical
pattern near the...
Post-Tropical Cyclone Tammy Forecast Discussion Number 32
Issued at 500 AM AST Thu Oct 26 2023
000
WTNT45 KNHC 260843
TCDAT5
Post-Tropical Cyclone Tammy Discussion Number 32
NWS National Hurricane Center Miami FL
AL202023
500 AM AST Thu Oct 26 2023
Tammy appears to have completed its transition to a post-tropical
cyclone, merging with the nearby front. The cloud pattern has become
more comma shaped, with a long linear convective band, and is no
...
Hurricane Tammy Forecast Discussion Number 31
Hurricane Tammy Forecast Discussion Number 31
Issued at 1100 PM AST Wed Oct 25 2023
119
WTNT45 KNHC 260241
TCDAT5
Hurricane Tammy Discussion Number 31
NWS National Hurricane Center Miami FL
AL202023
1100 PM AST Wed Oct 25 2023
The extratropical transition of Tammy appears to be well underway.
The eye is no longer apparent in satellite images, and deep
convection has eroded over the western portion of the circulation. A
dry slot has b...
Hurricane Tammy Forecast Discussion Number 30
Hurricane Tammy Forecast Discussion Number 30
Issued at 500 PM AST Wed Oct 25 2023
000
WTNT45 KNHC 252051
TCDAT5
Hurricane Tammy Discussion Number 30
NWS National Hurricane Center Miami FL
AL202023
500 PM AST Wed Oct 25 2023
Tammy is beginning to interact with a front to its north. The eye
has lost some of its definition as the northern eyewall slowly
erodes. Outflow is now limited to the southern and eastern portions
of the circulati...
Hurricane Tammy Forecast Discussion Number 29
Hurricane Tammy Forecast Discussion Number 29
Issued at 1100 AM AST Wed Oct 25 2023
ZCZC MIATCDAT5 ALL
TTAA00 KNHC DDHHMM
Hurricane Tammy Discussion Number 29
NWS National Hurricane Center Miami FL
AL202023
1100 AM AST Wed Oct 25 2023
Tammy has improved its satellite presentation this morning. Since
the previous advisory, the hurricane briefly had a symmetric eye in
the satellite infrared and microwave imagery. A nearby deep-layer
tro...