Alert archive / Maryland / Flash Flood Warnings in 2006

Flash Flood Warning 25, NWS Philadelphia/Mount Holly

June 26, 2006Caroline County, Queen Anne's County, Maryland; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 26, 2006, 9:10 AM EDT for Caroline County, Queen Anne's County, Maryland; Kent County, Sussex County, Delaware. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 26, 2006, 9:10 AM EDT (13:10 UTC)
Expired
Jun 26, 2006, 12:15 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 30 km from the middle of the area, began a volume at 13:10 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, 1.2 hours before the alert went out and 72 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, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 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
185 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KPHI 261311
FFWPHI
DEC001-005-MDC011-035-261615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
910 AM EDT MON JUN 26 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN KENT COUNTY IN CENTRAL DELAWARE
  CAROLINE COUNTY IN EASTERN MARYLAND
  NORTHEASTERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND
  WEST CENTRAL SUSSEX COUNTY IN SOUTHERN DELAWARE

* UNTIL 1215 PM EDT

* AT 906 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES   
  FLASH FLOODING FROM A NEARLY STATIONARY AREA OF HEAVY RAIN. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUDLERSVILLE...RIDGELY...GREENSBORO...GOLDSBORO...DENTON...
  WOODSIDE...VIOLA...HARTLY...HARRINGTON AND BRIDGEVILLE

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 3866 7596 3859 7552 3921 7556 3924 7588

$$

PO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 10:46 PM EDTFlash Flood WarningPHICecil4 hr
Jun 26, 12:47 PM EDTFlash Flood WarningPHICaroline, Queen Anne's118 min
Jun 26, 1:45 PM EDTCoastal Flood StatementPHICaroline, Cecil, Kent, Queen Anne's, Talbot24 hr

Nearby

Flash Flood Warnings in Maryland, 2006Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.