Alert archive / Delaware / River Flood Warnings in 2011

River Flood Warning 57, NWS Philadelphia/Mount Holly

March 11, 2011New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Mar 11, 2011, 9:29 AM EST for New Castle County, Delaware. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Mar 11, 2011, 9:29 AM EST (14:29 UTC)
Expired: Mar 11, 2011, 5:54 PM EST
In force: 8 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Major

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 85 km from the middle of the area, began a volume at 14:32 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 river

Written for the forecast point Brandywine Creek at Wilmington (WMND1). The gauge peaked at 17.31 ft at Mar 11, 2011, 11:00 AM EST.

Action stage: 22 ft
Minor stage: 24.5 ft
Moderate stage: 26 ft
Major stage: 27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01481500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

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

258 
WGUS41 KPHI 111429
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
929 AM EST FRI MAR 11 2011

...THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING RIVERS IN DELAWARE... 

  BRANDYWINE CREEK AT WILMINGTON AFFECTING NEW CASTLE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

DEC003-112029-
/O.NEW.KPHI.FL.W.0057.110311T1429Z-110312T0153Z/
/WMND1.3.ER.110311T1247Z.110311T1800Z.110311T1953Z.NR/
929 AM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE BRANDYWINE CREEK AT WILMINGTON.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:45 AM FRIDAY THE STAGE WAS 17.0 FEET. 
* FLOOD STAGE IS 16.5 FEET. 
* RECORD FLOODING IS OCCURRING AND RECORD FLOODING IS FORECAST.
* IMPACT...AT 19.0 FEET...SERIOUS FLOODING AT THE DUPONT PLANT.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  WILMINGTON       16.5   16.96  FRI 9 AM    17.1  FRI 1 PM 

&&

2 follow-up statements

280 
WGUS81 KPHI 112012
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
312 PM EST FRI MAR 11 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  LEHIGH RIVER AT BETHLEHEM AFFECTING LEHIGH AND NORTHAMPTON COUNTIES
  SCHUYLKILL RIVER AT PHILADELPHIA AFFECTING PHILADELPHIA AND 
  MONTGOMERY COUNTIES
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...DELAWARE...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
  
  BRANDYWINE CREEK AT WILMINGTON AFFECTING NEW CASTLE COUNTY 
  LEHIGH RIVER AT WALNUTPORT AFFECTING LEHIGH AND NORTHAMPTON COUNTIES 
  SCHUYLKILL RIVER AT BERNE AFFECTING BERKS AND MONTGOMERY COUNTIES 
  SCHUYLKILL RIVER AT READING AFFECTING BERKS COUNTY 
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA..
  BUSH KILL AT SHOEMAKERS AFFECTING MONROE COUNTY 
  SCHUYLKILL RIVER AT POTTSTOWN AFFECTING MONTGOMERY COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC029-045-120408-
/O.EXT.KPHI.FL.W.0024.000000T0000Z-110312T0408Z/
/CDFP1.2.ER.110311T0220Z.110311T1215Z.110311T2208Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  2:45 PM FRIDAY THE STAGE WAS 9.9 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  LATE THIS AFTERNOON.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 
  NEAR POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

DEC003-120206-
/O.EXT.KPHI.FL.W.0057.000000T0000Z-110312T0206Z/
/WMND1.3.ER.110311T1247Z.110311T1615Z.110311T2006Z.NR/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT WILMINGTON.
* AT  2:45 PM FRIDAY THE STAGE WAS 16.6 FEET. 
* FLOOD STAGE IS 16.5 FEET. 
* RECORD FLOODING IS OCCURRING.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  LATE THIS AFTERNOON.


$$

PAC089-120612-
/O.CON.KPHI.FL.W.0032.000000T0000Z-110312T0800Z/
/SHOP1.1.ER.110311T0730Z.110311T1445Z.110312T0200Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE BUSH KILL AT SHOEMAKERS.
* AT  3:00 PM FRIDAY THE STAGE WAS 6.6 FEET. 
* FLOOD STAGE IS 6.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  TONIGHT.


$$

PAC077-095-120612-
/O.EXT.KPHI.FL.W.0036.000000T0000Z-110312T0900Z/
/WNTP1.2.ER.110311T0255Z.110311T1115Z.110312T0300Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE LEHIGH RIVER AT WALNUTPORT.
* AT  3:01 PM FRIDAY THE STAGE WAS 9.6 FEET. 
* FLOOD STAGE IS 8.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  TONIGHT.


$$

PAC077-095-112042-
/O.CAN.KPHI.FL.W.0049.000000T0000Z-110312T0200Z/
/BETP1.1.ER.110311T1213Z.110311T1615Z.110311T1929Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE LEHIGH RIVER AT BETHLEHEM.
* AT  2:30 PM FRIDAY THE STAGE WAS 16.0 FEET. 
* FLOOD STAGE IS 16.0 FEET. 
* FELL BELOW FLOOD STAGE AT  2:29 PM FRIDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 8.6 FEET BY TOMORROW 
  MORNING.
* IMPACT...AT 15.0 FEET...THE ISLANDS IN THE ALLENTOWN AREA BEGIN TO 
  FLOOD

$$

PAC011-091-120612-
/O.EXT.KPHI.FL.W.0026.000000T0000Z-110312T0636Z/
/BREP1.2.ER.110311T0319Z.110311T1200Z.110312T0036Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT BERNE.
* AT  2:31 PM FRIDAY THE STAGE WAS 12.9 FEET. 
* FLOOD STAGE IS 12.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  THIS EVENING.


$$

PAC011-120611-
/O.EXT.KPHI.FL.W.0027.000000T0000Z-110312T0940Z/
/RDRP1.3.ER.110311T0912Z.110311T1201Z.110312T0340Z.NR/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT READING.
* AT  3:01 PM FRIDAY THE STAGE WAS 14.7 FEET. 
* FLOOD STAGE IS 13.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  TONIGHT.
* IMPACT...AT 14.0 FEET...PARTS OF WATER AND CANAL STREETS IN READING 
  FLOOD

$$

PAC091-120611-
/O.CON.KPHI.FL.W.0028.000000T0000Z-110312T1300Z/
/PTNP1.1.ER.110311T1240Z.110312T0000Z.110312T0700Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT POTTSTOWN.
* AT  3:00 PM FRIDAY THE STAGE WAS 13.9 FEET. 
* FLOOD STAGE IS 13.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 14.2 FEET BY THIS 
  EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE AFTER MIDNIGHT 
  TOMORROW.
* IMPACT...AT 14.0 FEET...PA ROUTE 724 IS CLOSED DUE TO HIGH WATER

$$

PAC091-101-112042-
/O.CAN.KPHI.FL.W.0030.000000T0000Z-110312T0400Z/
/PADP1.1.ER.110311T1250Z.110311T1431Z.110311T1531Z.NO/
312 PM EST FRI MAR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE SCHUYLKILL RIVER AT PHILADELPHIA.
* AT  3:01 PM FRIDAY THE STAGE WAS 10.7 FEET. 
* FLOOD STAGE IS 11.0 FEET. 
* FELL BELOW FLOOD STAGE AT 10:31 AM FRIDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 9.4 FEET BY TOMORROW 
  MORNING.
* IMPACT...AT 10.0 FEET...LOW LYING AREAS IN THE FLAT ROCK AREA FLOOD. 
  EAST AND WEST RIVER DRIVES IN FAIRMONT PARK ARE CLOSED

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  BERNE            12.0   12.88  FRI 3 PM    12.1  FRI 7 PM 
  READING          13.0   14.69  FRI 3 PM    14.1  FRI 7 PM 
  POTTSTOWN        13.0   13.88  FRI 3 PM    14.2  FRI 7 PM 
  PHILADELPHIA     11.0   10.73  FRI 3 PM    10.3  FRI 7 PM 

LEHIGH RIVER
  WALNUTPORT       8.0    9.57  FRI 3 PM     8.6  FRI 7 PM 
  BETHLEHEM        16.0   15.99  FRI 2 PM    12.9  FRI 7 PM 

BUSH KILL
  SHOEMAKERS       6.0    6.56  FRI 3 PM     6.2  FRI 7 PM 

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.90  FRI 3 PM     8.3  FRI 7 PM 
  WILMINGTON       16.5   16.60  FRI 3 PM    15.4  FRI 7 PM 

&&

HEAVENER

278 
WGUS81 KPHI 112254
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
554 PM EST FRI MAR 11 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...DELAWARE...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE 
  COUNTIES
  BRANDYWINE CREEK AT WILMINGTON AFFECTING NEW CASTLE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC029-045-112324-
/O.CAN.KPHI.FL.W.0024.000000T0000Z-110312T0408Z/
/CDFP1.2.ER.110311T0220Z.110311T1215Z.110311T2211Z.NO/
554 PM EST FRI MAR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  5:30 PM FRIDAY THE STAGE WAS 8.8 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FELL BELOW FLOOD STAGE AT  5:11 PM FRIDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.5 FEET BY TOMORROW 
  MORNING.
  

$$

DEC003-112324-
/O.CAN.KPHI.FL.W.0057.000000T0000Z-110312T0206Z/
/WMND1.3.ER.110311T1247Z.110311T1615Z.110311T2105Z.NR/
554 PM EST FRI MAR 11 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE BRANDYWINE CREEK AT WILMINGTON.
* AT  5:45 PM FRIDAY THE STAGE WAS 16.0 FEET. 
* FLOOD STAGE IS 16.5 FEET. 
* FELL BELOW FLOOD STAGE AT  4:05 PM FRIDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 14.0 FEET BY TOMORROW 
  MORNING.


$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       

BRANDYWINE CREEK
  CHADDS FORD       9.0    8.79  FRI 5 PM     8.3  FRI 7 PM 
  WILMINGTON       16.5   16.01  FRI 6 PM    15.4  FRI 7 PM 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 10, 7:12 PM EST	River Flood Warning	PHI	New Castle	6 hr
Mar 10, 11:47 PM EST	Areal Flood Warning	PHI	Kent, New Castle, Sussex	12 hr

Nearby

River Flood Warnings in Delaware, 2011 Every river flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.