Tropical Weather Update August 31, 2011 0730 CDT
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Tropical Weather Update August 31, 2011 0730 CDT National Weather Service National Weather Service Weather Forecast Office Weather Forecast Office Slidell, LA Slidell, LA
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Tropical Weather Update August 31, 2011 0730 CDT. National Weather Service Weather Forecast Office Slidell, LA. Overview. - PowerPoint PPT Presentation
Transcript of Tropical Weather Update August 31, 2011 0730 CDT
Tropical Weather Update August 31, 2011
0730 CDT
National Weather Service National Weather Service Weather Forecast OfficeWeather Forecast Office
Slidell, LASlidell, LA
Overview
Tropical wave currently located over the Tropical wave currently located over the northwestern Caribbean may develop further as it northwestern Caribbean may develop further as it moves through the central and moves through the central and western/northwestern Gulf late this week/over the western/northwestern Gulf late this week/over the weekendweekend
Main local threats:Main local threats: Heavy rainfallHeavy rainfall Higher than normal tidesHigher than normal tides Strong winds over the coastal watersStrong winds over the coastal waters
Tropical Weather Outlook
Satellite Image 615am
5 Day Rainfall Forecast(through Sunday morning)
Other Threats - Wind
Marine Areas:Marine Areas: Sustained winds increasing over the next couple daysSustained winds increasing over the next couple days Expect winds 15-20 knots by Friday with 20-25 knots Expect winds 15-20 knots by Friday with 20-25 knots
over the weekend (higher gusts)over the weekend (higher gusts) Small Craft Advisories likelySmall Craft Advisories likely
Land Areas:Land Areas: Gusts 25 to 35 mph in squalls and thunderstormsGusts 25 to 35 mph in squalls and thunderstorms
Other Threats - Tides
A prolonged period of moderate to strong easterly A prolonged period of moderate to strong easterly or southeasterly winds will lead to elevated tide or southeasterly winds will lead to elevated tide levels by Friday and through the weekendlevels by Friday and through the weekend
Tides may rise up to 1 to 2 feet above Tides may rise up to 1 to 2 feet above astronomical over the weekend (could be higher astronomical over the weekend (could be higher depending on how strong the winds are)depending on how strong the winds are)
Summary
There is still much uncertainty concerning the There is still much uncertainty concerning the development, eventual track, and intensity of this development, eventual track, and intensity of this system. Future forecasts will continue to refine system. Future forecasts will continue to refine the details.the details.
Main local threats for the northern Gulf coast will Main local threats for the northern Gulf coast will be:be: heavy rainfallheavy rainfall higher than normal tideshigher than normal tides strong winds over the coastal watersstrong winds over the coastal waters
NWS New Orleans Baton RougeNWS New Orleans Baton Rouge
www.weather.gov/lixwww.weather.gov/lix
http://www.srh.noaa.gov/lix?n=embrief2http://www.srh.noaa.gov/lix?n=embrief2*Tropical Briefing Section*Tropical Briefing Section
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