Hanna, advisory 5
Tropical Storm Hanna Advisory Number 5
Public advisory
National Hurricane Center · public advisory 5 · issued Sep 29, 2:49 PM UTCsource ↗
000 WTNT33 KNHC 291449 TCPAT3 BULLETIN Tropical Storm Hanna Advisory Number 5 NWS National Hurricane Center Miami FL AL082026 1100 AM AST Tue Sep 29 2026 ...HANNA MOVING SOUTHEASTWARD AND SLIGHTLY WEAKER... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...34.6N 45.5W ABOUT 1120 MI...1805 KM ENE OF BERMUDA ABOUT 1055 MI...1695 KM W OF THE AZORES MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...SE OR 125 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Hanna was located near latitude 34.6 North, longitude 45.5 West. Hanna is moving toward the southeast near 12 mph (19 km/h) and and this motion is forecast to continue over the next day or so followed by a turn to the east-northeast. Recent satellite wind data indicates that maximum sustained winds are 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 by the latter part of this week. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Beven
Forecast discussion
National Hurricane Center · forecast discussion 5 · issued Sep 29, 2:49 PM UTCsource ↗
000 WTNT43 KNHC 291449 TCDAT3 Tropical Storm Hanna Discussion Number 5 NWS National Hurricane Center Miami FL AL082026 1100 AM AST Tue Sep 29 2026 Satellite imagery this morning shows that Hanna continues as a sheared tropical cyclone with the low-level center mostly exposed to the west of the main convective area. The cyclone also remains just south of a weak frontal boundary. Based on a just received ASCAT overpass, the initial intensity is reduced to 35 kt. The scatterometer data also suggests that the circulation is becoming less well defined as it interacts with the frontal boundary. The initial motion is now 125/10 kt. There is little change to the track forecast reasoning from the previous advisory. Hanna is embedded in the flow between a broad mid-latitude trough to its northeast and a larger subtropical ridge to its south. This synoptic pattern should result in a southeastward or east-southward motion over the next 12-24 h with a gradual decrease in forward speed. An east-northeastward motion is then expected as the cyclone becomes vertically shallow and influenced by a low-level ridge centered south of the Azores. The new forecast track is similar to the previous track and is in best agreement with the HFIP Corrected Consensus model. Hanna should gradually weaken due to shear and dry air entrainment, and the system is likely to stop producing convection and degenerate to a remnant low between 36-48 h based on global model simulated satellite imagery. The system is expected to weaken to a trough by 96 h. FORECAST POSITIONS AND MAX WINDS INIT 29/1500Z 34.6N 45.5W 35 KT 40 MPH 12H 30/0000Z 34.0N 44.2W 35 KT 40 MPH 24H 30/1200Z 33.9N 43.0W 35 KT 40 MPH 36H 01/0000Z 34.5N 41.6W 35 KT 40 MPH 48H 01/1200Z 35.3N 39.5W 30 KT 35 MPH...POST-TROP/REMNT LOW 60H 02/0000Z 36.4N 37.0W 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 02/1200Z 37.4N 34.1W 30 KT 35 MPH...POST-TROP/REMNT LOW 96H 03/1200Z...DISSIPATED $$ Forecaster Beven
