Alert archive / Maryland / Coastal Flood Statements in 2011
Coastal Flood Statement 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this coastal flood statement at Mar 6, 2011, 3:30 AM EST for 4 states. It took effect at Mar 7, 2011, 12:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 6, 2011, 3:30 AM EST (08:30 UTC)
- In effect from
- Mar 7, 2011, 12:00 PM EST
- Expired
- Mar 6, 2011, 8:34 PM EST
- In force
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 08:34 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 8.5 hours before the alert went out and 172 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
- 1354 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
592 WHUS41 KPHI 060830 CFWPHI COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 330 AM EST SUN MAR 6 2011 ...LOCALIZED MINOR TIDAL FLOODING MAY OCCUR THIS AFTERNOON AND THIS EVENING ON THE LOWER DELAWARE RIVER AS WELL AS THE NORTHEAST MARYLAND SHORE... .AN INCREASING SOUTHERLY FLOW TODAY WILL PUSH WATER LEVELS HIGHER AND MAY CAUSE MINOR TIDAL FLOODING AROUND THE TIME OF HIGH TIDE THIS AFTERNOON AND THIS EVENING ON THE LOWER DELAWARE RIVER AND FOR THE NORTHEAST MARYLAND SHORE AREAS ON UPPER CHESAPEAKE BAY. DEZ001-NJZ016>019-PAZ070-071-062100- /O.NEW.KPHI.CF.S.0009.110307T1700Z-110307T2200Z/ NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA- 330 AM EST SUN MAR 6 2011 ...SOME MINOR TIDAL FLOODING IS POSSIBLE THIS AFTERNOON... AN INCREASING SOUTH-SOUTHEAST FLOW WILL PUSH WATER UP DELAWARE BAY TODAY. THIS...COUPLED WITH EXPECTED HEAVY RAIN AND RESULTANT RUNOFF...MAY CAUSE LOCALIZED MINOR TIDAL FLOODING AROUND THE TIME OF HIGH TIDE THIS AFTERNOON, WHICH GENERALLY OCCURS BETWEEN 1:30 PM AND 3:30 PM. IF WATER IS UNABLE TO DRAIN FOR THE NEXT HIGH TIDE EARLY MONDAY MORNING...ADDITIONAL LOCALIZED MINOR TIDAL FLOODING COULD OCCUR. DO NOT PARK YOUR VEHICLE IN AN AREA PRONE TO TIDAL FLOODING... AND DO NOT TRY TO DRIVE ACROSS FLOODED ROADS. $$ MDZ008-012-015-019-020-062100- /O.NEW.KPHI.CF.S.0009.110307T2000Z-110308T0300Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 330 AM EST SUN MAR 6 2011 ...SOME MINOR TIDAL FLOODING IS POSSIBLE LATER THIS AFTERNOON AND THIS EVENING... AN INCREASING SOUTH-SOUTHEAST FLOW WILL PUSH WATER UP CHESAPEAKE BAY TODAY AND EARLY TONIGHT. THIS...COUPLED WITH EXPECTED HEAVY RAIN AND RESULTANT RUNOFF...MAY CAUSE LOCALIZED MINOR TIDAL FLOODING AROUND THE TIME OF HIGH TIDE LATER THIS AFTERNOON, WHICH GENERALLY OCCURS BETWEEN 5:00 PM AND 8:30 PM. DO NOT PARK YOUR VEHICLE IN AN AREA PRONE TO TIDAL FLOODING... AND DO NOT TRY TO DRIVE ACROSS FLOODED ROADS. $$
3 follow-up statements
030 WHUS41 KPHI 062101 CFWPHI URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 401 PM EST SUN MAR 6 2011 DEZ001-NJZ016>019-PAZ070-071-070300- /O.CON.KPHI.CF.S.0009.110307T1700Z-110307T2200Z/ NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA- 401 PM EST SUN MAR 6 2011 THE SOUTH-SOUTHEAST FLOW BROUGHT TIDAL DEPARTURES UP TO AROUND 1 1/2 FEET ABOVE NORMAL THIS AFTERNOON. HIGH TIDE, WHICH IS CURRENTLY OCCURRING, IS PEAKING AROUND 1 FOOT BELOW MINOR TIDAL FLOOD HEIGHTS. WITH THE WINDS SHIFTING LATER THIS EVENING, THE THREAT FOR ANY TIDAL FLOODING FROM SUBSEQUENT HIGH TIDES WILL BE GREATLY REDUCED. $$ MDZ008-012-015-019-020-070300- /O.CON.KPHI.CF.S.0009.110307T2000Z-110308T0300Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 401 PM EST SUN MAR 6 2011 ...HIGH WATER IS POSSIBLE THIS EVENING... THE SOUTH-SOUTHEAST FLOW HAS CAUSED TIDAL DEPARTURES TO INCREASE TO AROUND 1 1/2 FEET ABOVE NORMAL THIS AFTERNOON. THIS FLOW HAS PUSHED WATER UP CHESAPEAKE BAY AND COMBINED WITH THE RUNOFF FROM THE HEAVY RAIN, WATER LEVELS COULD APPROACH MINOR TIDAL FLOOD HEIGHTS AROUND THE TIME OF HIGH TIDE THIS EVENING, WHICH GENERALLY OCCURS BETWEEN 5:00 PM AND 8:30 PM. DO NOT PARK YOUR VEHICLE IN AN AREA PRONE TO TIDAL FLOODING... AND DO NOT TRY TO DRIVE ACROSS FLOODED ROADS. $$ RPW
947 WHUS41 KPHI 062216 CFWPHI URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 516 PM EST SUN MAR 6 2011 DEZ001-NJZ016>019-PAZ070-071-062330- /O.CAN.KPHI.CF.S.0009.110307T1700Z-110307T2200Z/ NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA- 516 PM EST SUN MAR 6 2011 HIGH TIDE HAS ALREADY OCCURRED ON THE TIDAL DELAWARE. THE THREAT FOR ANY TIDAL FLOODING IS OVER. $$ MDZ008-012-015-019-020-070630- /O.CON.KPHI.CF.S.0009.110307T2000Z-110308T0300Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 516 PM EST SUN MAR 6 2011 ...HIGH WATER IS POSSIBLE THIS EVENING... THE SOUTH-SOUTHEAST FLOW HAS CAUSED TIDAL DEPARTURES TO INCREASE TO AROUND 1 1/2 FEET ABOVE NORMAL THIS AFTERNOON. THIS FLOW HAS PUSHED WATER UP CHESAPEAKE BAY AND COMBINED WITH THE RUNOFF FROM THE HEAVY RAIN... WATER LEVELS COULD APPROACH MINOR TIDAL FLOOD HEIGHTS AROUND THE TIME OF HIGH TIDE THIS EVENING... WHICH GENERALLY OCCURS BETWEEN 5:00 PM AND 8:30 PM. DO NOT PARK YOUR VEHICLE IN AN AREA PRONE TO TIDAL FLOODING... AND DO NOT TRY TO DRIVE ACROSS FLOODED ROADS. $$
712 WHUS41 KPHI 070134 CFWPHI URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 834 PM EST SUN MAR 6 2011 MDZ008-012-015-019-020-070245- /O.CAN.KPHI.CF.S.0009.110307T2000Z-110308T0300Z/ CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE- 834 PM EST SUN MAR 6 2011 ...THE THREAT FOR TIDAL FLOODING HAS PASSED... LOW PRESSURE AND ITS ASSOCIATED FRONT HAVE PASSED EAST OF THE CHESAPEAKE BAY AND WINDS HAVE SWITCHED AROUND TO NORTH. THE HIGH TIDE HAS ALREADY OCCURRED AT TOLCHESTER BEACH AND THE WATER LEVELS HAVE REMAINED BELOW MINOR TIDAL FLOODING LEVELS. THE THREAT FOR ANY FURTHER FLOODING HAS PASSED. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 3:37 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 28 hr |
| Mar 6, 2:19 PM EST | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 6 hr |
| Mar 6, 3:14 PM EST | Special Weather Statement | PHI | Chester, Delaware, Montgomery | 61 min |
| Mar 6, 3:32 PM EST | Areal Flood Warning | PHI | Berks, Monroe | 41 days |
| Mar 6, 4:55 PM EST | Areal Flood Warning | PHI | Carbon, Lehigh, Northampton | 12 hr |
| Mar 6, 5:33 PM EST | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Mar 6, 4:41 PM EST | Areal Flood Advisory | PHI | Sussex, Warren | 4 hr |
| Mar 6, 5:01 PM EST | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset | 12 hr |
| Mar 6, 5:54 PM EST | Special Weather Statement | PHI | Burlington, Camden | 66 min |
| Mar 6, 6:00 PM EST | Areal Flood Warning | PHI | Sussex, Warren | 6 hr |
| Mar 6, 6:17 PM EST | Areal Flood Warning | PHI | Morris | 32 hr |
| Mar 6, 6:30 PM EST | Areal Flood Advisory | PHI | Atlantic, Camden, Cape May, Cumberland, Middlesex, Monmouth and 2 more | 4 hr |
Nearby
Coastal Flood Statements in Maryland, 2011Coastal Flood Statements in New Jersey, 2011Coastal Flood Statements in Pennsylvania, 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.