Alert archive / Maryland / Flash Flood Watches in 2014
Flash Flood Watch 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Jul 10, 2014, 3:14 PM EDT for 5 counties in Maryland; 4 counties in New Jersey; Kent County, New Castle County, Sussex County, Delaware. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2014, 3:14 PM EDT (19:14 UTC)
- Expired
- Jul 11, 2014, 12:00 AM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 42 km from the middle of the area, began a volume at 19:17 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, 7.2 hours before the alert went out and 57 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
- 881 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.9
The text
As transmitted, in the capitals the NWS used until 2016.
510 WGUS61 KPHI 101914 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 314 PM EDT THU JUL 10 2014 DEZ001>004-MDZ008-012-015-019-020-NJZ016-021>024-110400- /O.NEW.KPHI.FF.A.0006.140710T1914Z-140711T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON... DENTON...PENNSVILLE...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...OCEAN CITY 314 PM EDT THU JUL 10 2014 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF DELAWARE...NORTHEAST MARYLAND AND SOUTHERN NEW JERSEY...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX...KENT AND NEW CASTLE. IN NORTHEAST MARYLAND...CAROLINE...CECIL... KENT MD...QUEEN ANNES AND TALBOT. IN SOUTHERN NEW JERSEY... ATLANTIC...ATLANTIC COASTAL CAPE MAY...CAPE MAY...CUMBERLAND AND SALEM. * UNTIL MIDNIGHT EDT TONIGHT * SLOW MOVING SCATTERED THUNDERSTORMS WITH TORRENTIAL DOWNPOURS HAVE THE POTENTIAL TO DROP 2 TO 4 INCHES OF RAIN IN A SHORT PERIOD OF TIME WHERE THEY OCCUR THE REST OF THIS AFTERNOON INTO THIS EVENING. * QUICK FLOODING OF FIELDS, LOW LYING AREAS, CREEKS AND ROADWAYS ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ ROBERTSON/GIGI
2 follow-up statements
714 WGUS61 KPHI 110300 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1100 PM EDT THU JUL 10 2014 DEZ002>004-MDZ012-015-019-020-NJZ016-021>024-110400- /O.CAN.KPHI.FF.A.0006.000000T0000Z-140711T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE-SALEM-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CHESTERTOWN...CENTREVILLE...EASTON...DENTON...PENNSVILLE... MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY 1100 PM EDT THU JUL 10 2014 ...FLASH FLOOD WATCH IS CANCELLED... THE THREAT OF FLASH FLOODING HAS ENDED IN THE MARYLAND COUNTIES OF KENT, QUEEN ANNE'S, TALBOT AND CAROLINE, IN THE DELAWARE COUNTIES OF KENT AND SUSSEX AND IN THE NEW JERSEY COUNTIES OF SALEM, CUMBERLAND, ATLANTIC AND CAPE MAY. AS A RESULT, THE FLASH FLOOD WATCH HAS BEEN CANCELLED FOR THOSE COUNTIES. $$ DEZ001-MDZ008-110400- /O.CON.KPHI.FF.A.0006.000000T0000Z-140711T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL- INCLUDING THE CITIES OF...WILMINGTON...ELKTON 1100 PM EDT THU JUL 10 2014 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * CECIL COUNTY IN MARYLAND AND NEW CASTLE COUNTY IN DELAWARE. * UNTIL MIDNIGHT EDT TONIGHT * THUNDERSTORMS MOVING SLOWLY SOUTHEASTWARD HAVE THE POTENTIAL TO PRODUCE 1 TO 3 INCHES OF RAINFALL IN A SHORT AMOUNT OF TIME ACROSS CECIL COUNTY AND NORTHERN NEW CASTLE COUNTY UNTIL AROUND MIDNIGHT. THE THUNDERSTORMS ARE FORECAST TO WEAKEN AFTER MIDNIGHT. * THERE IS THE POSSIBILITY OF RAPID FLOODING OF FIELDS, LOW LYING AREAS, CREEKS AND ROADWAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. PLEASE MONITOR THE FORECAST AND BE PREPARED TO TAKE ACTION IF A FLASH FLOOD WARNING IS ISSUED. && $$
623 WGUS61 KPHI 110358 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1158 PM EDT THU JUL 10 2014 DEZ001-MDZ008-110500- /O.EXP.KPHI.FF.A.0006.000000T0000Z-140711T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL- INCLUDING THE CITIES OF...WILMINGTON...ELKTON 1158 PM EDT THU JUL 10 2014 ...FLASH FLOOD WATCH WILL EXPIRE AT MIDNIGHT EDT TONIGHT... WHILE MODERATE TO HEAVY RAIN WILL CONTINUE OVER PARTS OF NORTHERN NEW CASTLE COUNTY UNTIL AROUND 100 AM, THE THREAT OF FLASH FLOODING WILL CONTINUE TO DECREASE. AS A RESULT, THE FLASH FLOOD WATCH FOR CECIL COUNTY AND NEW CASTLE COUNTY WILL EXPIRE AT MIDNIGHT. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 1:32 PM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's | 3 hr |
| Jul 10, 2:28 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's | 3 hr |
| Jul 10, 3:39 PM EDT | Areal Flood Advisory | PHI | Caroline | 3 hr |
| Jul 10, 4:02 PM EDT | Flash Flood Warning | PHI | Caroline | 4 hr |
| Jul 10, 8:19 AM EDT | Special Marine Warning | PHI | 86 min | |
| Jul 10, 8:33 AM EDT | Special Marine Warning | PHI | 42 min | |
| Jul 10, 8:36 AM EDT | Special Weather Statement | PHI | Cumberland | 39 min |
| Jul 10, 9:23 AM EDT | Flash Flood Warning | PHI | Atlantic, Cape May | 4 hr |
| Jul 10, 9:55 AM EDT | Special Weather Statement | PHI | Cape May | 65 min |
| Jul 10, 4:39 PM EDT | Special Marine Warning | PHI | 96 min | |
| Jul 10, 6:27 PM EDT | Special Weather Statement | PHI | Morris | 63 min |
| Jul 10, 7:02 PM EDT | Flash Flood Warning | PHI | Morris, Somerset | 3 hr |
| Jul 10, 3:00 PM EDT | Special Weather Statement | PHI | Kent | 60 min |
| Jul 10, 4:36 PM EDT | Special Weather Statement | PHI | Sussex | 54 min |
| Jul 10, 4:59 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
Nearby
Flash Flood Watches in Maryland, 2014Flash Flood Watches in New Jersey, 2014Flash Flood Watches in Delaware, 2014Every flash flood watch in 2014
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.