Alert archive / Maryland / Flash Flood Warnings in 2005

Flash Flood Warning 8, NWS Philadelphia/Mount Holly

June 28, 2005New Castle County, Delaware; Cecil County, Kent County, Maryland

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 28, 2005, 3:36 PM EDT for New Castle County, Delaware; Cecil County, Kent County, Maryland. It was in force for 3 hr. 1 report 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 28, 2005, 3:36 PM EDT (19:36 UTC)
Expired: Jun 28, 2005, 6:30 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties New Castle County, DE, Cecil County, MD, Kent County, MD

What was reported inside it

Time	Report	Where	Remark
Jun 28, 4:00 PM EDT	FLASH FLOOD	Middletown, DE	FLOODING WITHIN MIDDLETOWN. SOME ROADS CLOSED.POWER OUTAGES DUE TO LIGHTNING STRIKES. ADJUSTED RADAR ESTIMATES OF AROUND THREE INCHES.

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.6 hours before the alert went out and 29 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 109 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1025 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KPHI 281938
FFWPHI
DEC003-MDC015-029-282230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
336 PM EDT TUE JUN 28 2005

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CECIL COUNTY IN NORTHEAST MARYLAND
  EASTERN KENT COUNTY IN NORTHEAST MARYLAND
  SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE

* UNTIL 630 PM EDT

* AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT UP TO FOUR INCHES OF RAIN HAS FALLEN DURING THE PAST
  HOUR IN THE TRI COUNTY AREA. THE HEAVIEST RAIN HAS FALLEN OVER THE
  SASSAFRAS RIVER IN MARYLAND. THUNDERSTORMS ARE ONLY SLOWLY MOVING
  AND WILL EXACERBATE THE ONGOING POOR DRAINAGE FLOODING AND 
  CAUSE MORE FLOODING OF CREEKS IN THE AREA. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MIDDLETOWN
  AND DELAWARE CITY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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 3930 7590 3935 7557 3958 7558 3951 7592

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 2:14 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	61 min
Jun 28, 2:37 PM EDT	Flash Flood Warning	PHI	Sussex	113 min
Jun 28, 3:42 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	33 min
Jun 28, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	28 min
Jun 28, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	62 min
Jun 28, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	42 min
Jun 28, 4:28 PM EDT	Flash Flood Warning	PHI	Sussex	3 hr

Nearby

Flash Flood Warnings in Maryland, 2005 Flash Flood Warnings in Delaware, 2005 Every flash flood warning in 2005

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.