Alert archive / Maryland / Flash Flood Warnings in 2016
Flash Flood Warning 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 13, 2016, 3:02 PM EDT for Caroline County, Maryland; Sussex County, Delaware. It was in force for 4 hr. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 13, 2016, 3:02 PM EDT (19:02 UTC)
- Expired
- Jul 13, 2016, 7:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Sussex County, DE, Caroline County, MD
The radar
The Dover AFB radar (KDOX), 28 km from the middle of the area, began a volume at 19:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 13, 3:20 PM EDT | HEAVY RAIN 1.5 | Delmar, DE | WITHIN THE LAST 90 MINUTES |
| Jul 13, 3:40 PM EDT | FLOOD | Seaford, DE | CARS STRANDED IN WATER ON ROADWAYS |
| Jul 13, 3:40 PM EDT | FLASH FLOOD | Seaford, DE | MULTIPLE CARS STRANDED IN WATER ON ROADWAYS |
| Jul 13, 4:06 PM EDT | HEAVY RAIN 2.27 | 4 E Delmar, DE | WITHIN THE LAST 2 HOURS |
| Jul 13, 4:48 PM EDT | FLASH FLOOD | Seaford, DE | RT. 20 CLOSED BETWEEN ATLANTA ROAD AND WOODPECKER ROAD |
| Jul 13, 4:49 PM EDT | HEAVY RAIN 5.49 | Seaford, DE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.0 hours before the alert went out and 82 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
- 361 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
682
WGUS51 KPHI 131902
FFWPHI
DEC005-MDC011-132300-
/O.NEW.KPHI.FF.W.0020.160713T1902Z-160713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
302 PM EDT WED JUL 13 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN SUSSEX COUNTY IN SOUTHERN DELAWARE...
SOUTHEASTERN CAROLINE COUNTY IN EASTERN MARYLAND...
* UNTIL 700 PM EDT
* AT 300 PM EDT...DOPPLER RADAR INDICATED A CLUSTER OF THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN. UP TO FOUR INCHES IS POSSIBLE. BECAUSE
THIS AMOUNT OF RAIN WILL FALL IN A SHORT PERIOD OF TIME, FLASH
FLOODING IS LIKELY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SEAFORD...LAUREL...BRIDGEVILLE...SYCAMORE...AGNER...SMITHVILLE...
BLADES AND BETHEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW.
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAT YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.
&&
LAT...LON 3864 7571 3869 7577 3880 7583 3880 7556
3846 7540 3846 7569
$$
KRUZDLO2 follow-up statements
888
WGUS71 KPHI 132002
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT WED JUL 13 2016
DEC005-MDC011-132300-
/O.CON.KPHI.FF.W.0020.000000T0000Z-160713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX DE-CAROLINE MD-
402 PM EDT WED JUL 13 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
SOUTHWESTERN SUSSEX AND SOUTHEASTERN CAROLINE COUNTIES...
AT 400 PM EDT...HEAVY RAIN CONTINUES ACROSS PORTIONS OF THE WARNED
AREA. STRANDED CARS IN HIGH WATER HAVE BEEN REPORTED IN SEAFORD.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SEAFORD...LAUREL...BRIDGEVILLE...SYCAMORE...AGNER...SMITHVILLE...
BLADES AND BETHEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3864 7571 3869 7577 3880 7583 3880 7556
3846 7540 3846 7569
$$
KRUZDLO766
WGUS71 KPHI 132252
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
652 PM EDT WED JUL 13 2016
DEC005-MDC011-132301-
/O.EXP.KPHI.FF.W.0020.000000T0000Z-160713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX DE-CAROLINE MD-
652 PM EDT WED JUL 13 2016
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN SUSSEX AND SOUTHEASTERN
CAROLINE COUNTIES WILL EXPIRE AT 700 PM EDT...
FLOOD WATERS CONTINUE TO RECEDE. NO NEW FLOODING IS EXPECTED. PLEASE
CONTINUE TO HEED ANY ROAD CLOSURES.
LAT...LON 3864 7571 3869 7577 3880 7583 3880 7556
3846 7540 3846 7569
$$
KRUZDLOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 1:13 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 4 hr |
| Jul 13, 2:16 PM EDT | Areal Flood Advisory | PHI | Caroline | 4 hr |
| Jul 13, 2:34 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 4 hr |
| Jul 13, 2:44 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Jul 13, 2:44 PM EDT | Excessive Heat Warning | PHI | New Castle | 52 hr |
| Jul 13, 4:03 PM EDT | Special Weather Statement | PHI | Sussex | 27 min |
| Jul 13, 4:39 PM EDT | Special Weather Statement | PHI | Sussex | 51 min |
| Jul 13, 5:02 PM EDT | Special Weather Statement | PHI | Sussex | 58 min |
Nearby
Flash Flood Warnings in Maryland, 2016Flash Flood Warnings in Delaware, 2016Every flash flood warning in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.