Tropical Cyclone Information Statements
2:31 AM ADT Sunday 19 September 2021
Tropical cyclone information statement for:
Newfoundland and Labrador:
- Burin Peninsula - Southern Avalon
- St. John's - Bonavista Peninsula
For Tropical Storm Odette.
This is the last statement on post-tropical storm Odette.
Post-tropical Storm Odette will spread rain and wind over southeastern Newfoundland this afternoon into Monday.
1. Summary of basic information at 3:30 a.m. NDT.
Location: 40.8 North 61.5 West.
About 200 kilometres south-southwest of Sable Island.
Maximum sustained winds: 85 kilometres per hour.
Present movement: Northeast at 32 kilometres per hour.
Minimum central pressure: 999 millibars.
2. Public weather impacts and warnings summary.
Discussion: This storm which is leaving the warm waters of the Gulf Stream exhibits the characteristics of a strong fall storm that produces strong northerly winds and heavy rain. A sharp cold front moving across Newfoundland today will interact with the moisture from the post-tropical storm to enhance the rainfall over southeastern portions of the Island late this afternoon and into the overnight hours. Rainfall and Wind warnings have been issued for southeastern Newfoundland. A rainfall warning is also in effect for Burgeo - Ramea.
There will be some minor influence in Nova Scotia's weather with gusty northerly winds today - gusts up to 60 km/h are expected in eastern Cape Breton. Some enhanced rainfall totals of around 20 to 40 mm is likely over eastern Nova Scotia.
For Newfoundland, strong northerly winds gusting between 80 to 100 km/h are likely with coastal gusts to 120 km/h over the southern Avalon peninsula beginning this evening. These severe winds will begin to diminish late overnight and early Monday morning. These winds could have some impacts on trees, but also on weakened infrastructures in the aftermath of hurricane Larry. This could lead to additional power interruptions.
Wind warnings are in effect for the Avalon and Burin peninsulas.
An area of rain associated directly with the storm is forecast to produce 40 to 75 mm with the possibility of 90 mm late this afternoon through Monday morning over southeastern most portions of Newfoundland. If the higher amounts materialize, some local flash-type flooding may occur in prone areas. A second area of heavy rainfall with persistent thunderstorms is extending along the cold front from the southwest coast into central Newfoundland this morning. Rainfall amounts of up to 60 mm are possible in this band.
Rainfall warnings are in effect for the Avalon Peninsula and Burgeo - Ramea.
Along the Atlantic Coast of Nova Scotia, waves could reach 2 to 3 metres starting this morning. These waves are expected to subside overnight tonight.
As the storm enters the southern Grand Banks, heavy wave action accompanying the winds can be expected along northeast-facing coasts in eastern Newfoundland. Waves of 2 to 3 metres will reach the south coast of Newfoundland Sunday evening, and then increase to 3 to 5 metres along the east coast of the Avalon Peninsula overnight Sunday into Monday. These waves are expected to gradually subside Monday night.
Storm Surge is not expected to be severe.
3. Marine weather impacts and warnings summary.
Gale to Storm-force winds are expected over many offshore marine areas including the Grand Banks, Scotian Slope waters, and the South Coast and East Coast marine regions of Newfoundland. Waves of 6 to 8 metres are forecast to develop in Laurentian Fan tonight and subside on Monday. Waves will build to 6 to 8 metres overnight in the southern Grand Banks and build further to 8 to 10 metres on Monday. These waves will begin to subside on Monday night and Tuesday morning as the remnants of Odette push off to the southeast.
For up to date information on the impacts of Odette, please monitor your local forecasts and alerts provided by the Newfoundland and Labrador Weather Office.
Please continue to monitor alerts issued by the Canadian Hurricane Centre and forecasts issued by Environment Canada.
For more comprehensive information about track tables and forecast rationale, please see the Technical Discussion
Visit the Canadian Hurricane Centre to learn more about hurricanes.
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