An onshore flow persisted around high pressure over the Western Atlantic during the morning hours of the 17th. The onshore flow caused tidal anomalies to increase which caused water levels to reach thresholds for moderate coastal flooding at Annapolis.
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The episode as NWS LWX wrote it up.
An onshore flow persisted around high pressure over the Western Atlantic during the morning hours of the 17th. The onshore flow caused tidal anomalies to increase which caused water levels to reach thresholds for moderate coastal flooding at Annapolis.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before the first event at Jun 17, 2:56 AM EST, 1 hour 28 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 coastal flood. Local standard time, as filed.
Water levels reached thresholds for moderate coastal flooding at Annapolis.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2011Every state in 2011This day in weather historyWarnings in Maryland, June 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 324965.