Sunday, August 27, 2017

TEAM NORFOLK - 8-27-17 - Potential Impacts from Tropical System Monday through Tuesday


Ladies and Gentlemen,



Please see the following from Bill Sammler, Warning Coordination Meteorologist with the National Weather Service in Wakefield:



“At 5 pm, the National Hurricane Center will be initiating advisories on an area of low pressure east of the Georgia coast that could become tropical storm Irma by tomorrow. As a result, a Tropical Storm Watch has been issued along the North Carolina coast as far north as Currituck Beach Light. This system's greatest impacts will be in southeast Virginia and coastal northeast North Carolina, although rain and gusty winds could extend well inland, and potential coastal flooding could impact our entire coastal/Chesapeake Bay area. Below are some potential impacts and timing.


Coastal Flooding - Minor flooding possible entire area, with moderate flooding possible in the lower Chesapeake Bay and tidal portions of the James River (at least as far upstream as Jamestown). Expect coastal flooding to begin later Monday and continue into Tuesday. Detailed forecasts are available on our Tides and Coastal flooding page.

Rainfall - Most areas will receive one half inch of rain or less during the event. The exception will be along and east of a Chincoteague to Roanoke Rapids line, where 1 to 2 inches of rain will be possible. Some areas near the coast could receive 2 to 4 inches of rain, within slightly higher localized amounts possible. See our Rain and Snow Forecasts page for details.

Winds - Edenton to Chincoteague eastward - Wind gusts Monday night through Tuesday could get in the 40 to 45 mph range, depending upon how much the area of low pressure intensifies. Elsewhere, wind gusts will be in the 20-30 mph range, highest near the Bay, and Lower Maryland Eastern Shore.

There remains a fair amount of uncertainty with regard to the intensity of this system, and whether the center remains over water as it lifts along the coast. We hope to have more details to provide you by tomorrow morning. If so, a detailed briefing may be issued.”

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I’ve attached the Tropical Storm graphic which reflects the TS Watch Bill mentioned, the hourly graph, 3-day rainfall forecast and tidal forecast for your review.  Again, currently, timing for such impacts begins tomorrow (Monday).  Minor flooding expected with Monday’s 2:55pm high tide (a couple hours before and after), nuisance flooding during the early morning (3:10am) high tide Tuesday and then moderate flooding associated with Tuesday afternoon’s high tide which peaks at 3:49pm. 

All subject to change; we’ll continue to monitor and keep you posted.  In the meantime, feel free to contact us with any questions.

Thanks!

Jim

Jim Redick
Director, Norfolk EOC
james.redick@norfolk.gov







 


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