Alert archive / Maryland / Flash Flood Warnings in 2006
Flash Flood Warning 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 25, 2006, 10:46 PM EDT for Cecil County, Maryland. It was in force for 4 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 25, 2006, 10:46 PM EDT (02:46 UTC)
- Expired
- Jun 26, 2006, 2:45 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Cecil County, MD
The radar
The Dover AFB radar (KDOX), 98 km from the middle of the area, began a volume at 02:48 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.8 hours before the alert went out and 122 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
- 494 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KPHI 260250 FFWPHI MDC015-260645- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1046 PM EDT SUN JUN 25 2006 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN AND WESTERN CECIL COUNTY IN NORTHEAST MARYLAND * UNTIL 245 AM EDT * AT 1044 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN MOVING NORTHEAST FROM JUST EAST OF BALTIMORE MARYLAND. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RISING SUN...NORTH EAST AND CHARLESTOWN RAINFALL AMOUNTS OF UP TO AN INCH HAVE ALREADY FALLEN IN NORTHWEST SECTIONS OF THE COUNTY. ADDITIONAL RAINFALL OF 2 TO 4 INCHES IS POSSIBLE IN THE WARNED AREA. 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. LAT...LON 3937 7637 3934 7609 3972 7580 3970 7621 $$ RPW
1 follow-up statement
000 WGUS71 KPHI 260407 FFSPHI FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1200 AM EDT MON JUN 26 2006 MDC015-260645- CECIL MD- 1200 AM EDT MON JUN 26 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM EDT FOR CECIL COUNTY... RAINFALL INTENSITIES HAVE DECREASED OVER MUCH OF THE COUNTY, BUT LIGHT TO MODERATE RAIN IS EXPECTED TO CONTINUE FOR THE NEXT FEW HOURS. ADDITIONAL RAINFALL AMOUNTS UP TO AROUND AN INCH ARE LIKELY AND LOCALLY HIGHER AMOUNTS ARE POSSIBLE, ESPECIALLY IN ANY THUNDERSTORMS. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. LAT...LON 3949 7610 3948 7580 3972 7580 3970 7621 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 9:10 AM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's | 3 hr |
| Jun 26, 12:47 PM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's | 118 min |
| Jun 26, 1:45 PM EDT | Coastal Flood Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 24 hr |
Nearby
Flash Flood Warnings in Maryland, 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.