storms.report

Hanna, advisory 7

Tropical Storm Hanna Advisory Number 7

Public advisory

National Hurricane Center · public advisory 7 · issued Sep 30, 2:34 AM UTCsource ↗

000
WTNT33 KNHC 300234
TCPAT3
 
BULLETIN
Tropical Storm Hanna Advisory Number   7
NWS National Hurricane Center Miami FL       AL082026
300 AM GMT Wed Sep 30 2026
 
...HANNA HOLDING STEADY WHILE MAINTAINING A SOUTHEASTWARD TRACK...
 
 
SUMMARY OF 300 AM GMT...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...33.7N 43.6W
ABOUT 1230 MI...1980 KM E OF BERMUDA
ABOUT 975 MI...1565 KM WSW OF THE AZORES
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...SE OR 130 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 300 AM GMT (0300 UTC), the center of Tropical Storm Hanna was 
located near latitude 33.7 North, longitude 43.6 West. Hanna is 
moving toward the southeast near 12 mph (19 km/h). This 
motion is forecast to continue with a decrease in forward speed 
through morning, followed by a turn to the east-northeast.
 
Maximum sustained winds remain near 40 mph (65 km/h) with higher 
gusts. Gradual weakening is expected during the next couple of days, 
and Hanna is likely to become a post-tropical cyclone tonight or 
Thursday.
 
Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.
 
The estimated minimum central pressure is 1005 mb (29.68 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
None.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 900 AM GMT.
 
$$
Forecaster Pierce/Cangialosi
 

Forecast discussion

National Hurricane Center · forecast discussion 7 · issued Sep 30, 2:35 AM UTCsource ↗

000
WTNT43 KNHC 300235
TCDAT3
 
Tropical Storm Hanna Discussion Number   7
NWS National Hurricane Center Miami FL       AL082026
300 AM GMT Wed Sep 30 2026

Visible and infrared satellite imagery shows that the low-level 
center remains exposed to the west of the main convection area. 
The convective pattern has become even more elongated west-east, 
likely influenced by the nearby frontal boundary. A 0032 UTC 
METOP-C scatterometer pass shows peak winds of 33 kt in the 
northeast quadrant. The latest TAFB Dvorak fix was T2.5/35 kt, 
aligning well with the mostly unchanged UW-CIMSS objective 
estimates. Based on all of these data, the initial intensity remains 
35 kt.
 
The initial motion remains southeastward, now 130/10 kt, as Hanna is 
moving along the southern edge of the mid-latitude westerlies to the 
southwest of a large trough over the northeastern Atlantic. During 
the next 1224 h, the flow near the cyclone will become more 
west-to-east, and as Hanna weakens vertically a low-level ridge 
centered south of the Azores will become the main steering 
influence. This should result in the cyclone, or its remnants, 
turning east-northeastward. The updated NHC forecast track was 
largely unchanged from the previous advisory and remains close to 
the corrected multi-model consensus (HCCA).

Hanna is forecast to gradually weaken as it persists in a 
moisture-starved environment, with moderate to strong vertical wind 
shear prevailing over the next 48 to 72 h. The latest GFS/ECMWF 
simulated satellite imagery now forecasts the system to stop 
producing convection in 24-36 h, at which time it would degenerate 
into a remnant low. After that, the remnant low is expected to open 
into a trough by 96 h.  However, it is possible that the system 
becomes a post-tropical system sooner if it merges with the nearby 
front.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  30/0300Z 33.7N  43.6W   35 KT  40 MPH
 12H  30/1200Z 33.6N  42.8W   30 KT  35 MPH
 24H  01/0000Z 34.1N  41.4W   30 KT  35 MPH
 36H  01/1200Z 34.7N  39.4W   30 KT  35 MPH...POST-TROP/REMNT LOW
 48H  02/0000Z 35.4N  36.8W   30 KT  35 MPH...POST-TROP/REMNT LOW
 60H  02/1200Z 36.1N  34.1W   25 KT  30 MPH...POST-TROP/REMNT LOW
 72H  03/0000Z 36.6N  31.5W   25 KT  30 MPH...POST-TROP/REMNT LOW
 96H  04/0000Z...DISSIPATED
 
$$
Forecaster Pierce/Cangialosi
 

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