Alert archive / Delaware / Flash Flood Warnings in 2005
Flash Flood Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Oct 8, 2005, 8:35 AM EDT for New Castle 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
- Oct 8, 2005, 8:35 AM EDT (12:35 UTC)
- Expired
- Oct 8, 2005, 11:30 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), 92 km from the middle of the area, began a volume at 12:39 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 12:00Z, 0.6 hours before the alert went out and 170 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
- 3 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 451 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KPHI 081239
FFWPHI
DEC003-081530-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
835 AM EDT SAT OCT 8 2005
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 1130 AM EDT
* AT 836 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED HEAVY
HEAVY RAIN OVER NEW CASTLE COUNTY. RADAR ESTIMATED RAINFALL WAS
OVER 2 INCHES FELL SINCE THE RAIN BEGAN. ANOTHER INCH OR TWO OF
RAIN COULD FALL IN THE NEXT 3 HOURS.
IN ADDITION, THE CHRISTINA RIVER WAS UP TO 9.55 FEET AND HAD LEVELED
OFF FROM EARLIER HEAVY RAIN. HOWEVER, AS MORE RAIN MOVES BACK INTO THE
BASIN, THE RIVER SHOULD RISE AGAIN AND SHOULD EXCEED FLOOD STAGE OF
10.5 FEET.
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.
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 3976 7575 3939 7578 3936 7552 3959 7557
3979 7548 3984 7562
$$
RNS1 follow-up statement
000
WGUS71 KPHI 081343
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
941 AM EDT SAT OCT 8 2005
DEC003-081351-
NEW CASTLE DE-
941 AM EDT SAT OCT 8 2005
...THE FLASH FLOOD WARNING FOR NEW CASTLE COUNTY IS CANCELLED...
RAIN WILL CONTINUE ACROSS NEW CASTLE COUNTY TODAY. HOWEVER, THE
VERY HEAVY RAIN HAS MOVED OFF TO THE NORTH. THEREFORE, THE FLASH
FLOOD WARNING HAS BEEN CANCELED.
HOWEVER, THE FLOOD WATCH REMAINS IN EFFECT INTO TONIGHT AS
ADDITIONAL HEAVY RAIN CAN BE EXPECTED. IF EXCESSIVE HEAVY RAIN
REDEVELOPS, A FLOOD OR FLASH FLOOD WARNING COULD BE REISSUED.
LAT...LON 3976 7575 3939 7578 3936 7552 3959 7557
3979 7548 3984 7562
$$
RNSNearby
Flash Flood Warnings in Delaware, 2005Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.