Alert archive / Maryland / Coastal Flood Statements in 2011
Coastal Flood Statement 17, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this coastal flood statement at May 11, 2011, 3:08 PM EDT for 5 counties in Maryland. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- May 11, 2011, 3:08 PM EDT (19:08 UTC)
- Expired
- May 12, 2011, 3:32 AM EDT
- In force
- 12 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 59 km from the middle of the area, began a volume at 19:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.1 hours before the alert went out and 43 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
100 WHUS41 KPHI 111908 CFWPHI COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 308 PM EDT WED MAY 11 2011 MDZ008-012-015-019-020-121000- /O.NEW.KPHI.CF.S.0017.110511T1908Z-110512T1000Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 308 PM EDT WED MAY 11 2011 DUE TO THE PERSISTENT NORTHEAST TO EAST FLOW ALONG THE COAST, WATER LEVELS REMAIN HIGH ALONG THE EASTERN SHORE OF THE CHESAPEAKE BAY IN MARYLAND. LATER LEVELS WILL LIKELY REMAIN ELEVATED OVER THE NEXT COUPLE OF DAYS AND MAY APPROACH THE MINOR TIDAL FLOODING LEVEL DURING SUBSEQUENT HIGH TIDE CYCLES. WE WILL CONTINUE TO MONITOR THE LEVEL IN CASE AN ADVISORY IS NEEDED AT A LATER TIME. $$ ROBERTSON
1 follow-up statement
115 WHUS41 KPHI 120732 CFWPHI URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 332 AM EDT THU MAY 12 2011 ...HIGHER THAN NORMAL TIDES WILL APPROACH MINOR TIDAL INUNDATION FLOOD THRESHOLDS FROM TIME TO TIME BETWEEN THIS COMING THURSDAY NIGHT AND NEXT WEDNESDAY... .A PERSISTENTLY SOUTH TO SOUTH SOUTHEAST FLOW OVER THE NEXT 5 TO 6 DAYS COMBINED WITH THE APPROACHING FULL MOON HAS SET THE STAGE FOR EPISODES OF MOSTLY MINOR COASTAL FLOODING ON PORTIONS OF CHESAPEAKE BAY. MDZ008-012-015-019-020-120845- /O.CAN.KPHI.CF.S.0017.000000T0000Z-110512T1000Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 332 AM EDT THU MAY 12 2011 NO TIDAL INUNDATION FLOODING OCCURRED OVERNIGHT ALONG THE EASTERN SHORE OF THE CHESAPEAKE BAY IN MARYLAND. WATER LEVELS WILL REMAIN ELEVATED THROUGH THIS COMING TUESDAY OR WEDNESDAY. NEW STATEMENTS OR ADVISORIES WILL BE ISSUED ONCE THERE IS MORE CERTAINTY OF THE NEXT POSSIBLE FLOOD EPISODE. THERE IS A CHANCE OF VERY MINOR TIDAL FLOODING THIS COMING THURSDAY NIGHT. EVENTUALLY THERE WILL BE A MUCH BETTER CHANCE FOR AN EXTENSIVE MINOR COASTAL FLOOD EPISODE...PROBABLY CENTERED ON EARLY SUNDAY OR MONDAY MORNING. $$ DRAG
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 9:00 AM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 5 hr |
Nearby
Coastal Flood Statements in Maryland, 2011Every coastal flood statement in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.