Alert archive / Delaware / Flash Flood Warnings in 2006

Flash Flood Warning 6, NWS Philadelphia/Mount Holly

June 2, 2006New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 2, 2006, 10:02 PM EDT for New Castle County, Delaware. It was in force for 3 hr. 2 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
Jun 2, 2006, 10:02 PM EDT (02:02 UTC)
Expired
Jun 3, 2006, 1:00 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 86 km from the middle of the area, began a volume at 02:06 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

TimeReportWhereRemark
Jun 2, 10:30 PM EDTFLASH FLOODWilmington, DEINTERSTATE 95 CLOSED DUE TO FLOODING.
Jun 2, 11:00 PM EDTFLASH FLOODPike Creek, DESTREAM ON FOX RUN DRIVE OUT OF ITS BANKS, FLOODING THE ROAD. SOME CARS ACTUALLY PUSHED AS A RESULT OF THE HIGH WATER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.0 hours before the alert went out and 165 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2006-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1897 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2006-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1897 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
1.2
Supercell composite
7.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KPHI 030204
FFWPHI
DEC003-030500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1002 PM EDT FRI JUN 2 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NEW CASTLE COUNTY IN NORTHERN DELAWARE
  THIS INCLUDES THE CITIES OF...WILMINGTON...NEWARK

* UNTIL 100 AM EDT

* AT 1000 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH TORRENTIAL DOWNPOURS ARE CONVERGING OVER
  NORTHERN NEW CASTLE COUNTY. TWO INCHES OF RAIN HAS FALLEN
  OVER THE RED CLAY CREEK BASIN OVER THE PAST HOUR AND ADDITIONAL
  HEAVY RAIN IS LIKELY DURING THE NEXT ONE TO TWO HOURS. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELSMERE AND
  BELLEFONTE. PLEASE ALSO BE WARY ALONG THE RED CLAY CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3941 7577 3951 7556 3982 7548 3973 7576

$$

TFG
1 follow-up statement
000 
WGUS71 KPHI 030255
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1050 PM EDT FRI JUN 2 2006

DEC003-030500-
NEW CASTLE DE-
1050 PM EDT FRI JUN 2 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR NEW
CASTLE COUNTY...

AT 1046 PM EDT...EXTENSIVE FLOODING WAS REPORTED ALONG INTERSTATE
95 IN WILMINGTON. DOPPLER RADAR INDICATED THAT STORM TOTALS HAVE
EXCEEDED TWO INCHES IN A LARGE PORTION OF THE NORTHERN THIRD
OF NEW CASTLE COUNTY WITH AMOUNTS NEARING 4 INCHES IN THE CITY
OF WILMINGTON ITSELF. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT 
LIMITED TO WILMINGTON MANOR...WILMINGTON...STANTON...NEWPORT...
NEWARK...NEW CASTLE...ELSMERE AND BELLEFONTE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 3941 7577 3951 7556 3982 7548 3973 7576

$$

TFG

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 8:00 PM EDTSevere Thunderstorm WarningPHISussex30 min
Jun 2, 9:17 PM EDTSevere Thunderstorm WarningPHINew Castle43 min
Jun 3, 12:44 AM EDTFlash Flood WarningPHINew Castle3 hr

Nearby

Flash Flood Warnings in Delaware, 2006Every flash flood warning in 2006

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.