Alert archive / Pennsylvania / River Flood Warnings in 2013

River Flood Warning 5, NWS Philadelphia/Mount Holly

January 31, 2013Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Jan 31, 2013, 1:21 PM EST for Chester County, Delaware County, Pennsylvania. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jan 31, 2013, 1:21 PM EST (18:21 UTC)
Expired: Jan 31, 2013, 7:52 PM EST
In force: 7 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Minor

Counties Chester County, PA, Delaware County, PA

The radar

The Philadelphia radar (KDIX), 99 km from the middle of the area, began a volume at 18:20 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 Chadds Ford (CDFP1). The gauge peaked at 9.20 ft at Jan 31, 2013, 3:00 PM EST.

Action stage: 8 ft
Minor stage: 9 ft
Moderate stage: 11 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01481000, 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.

349 
WGUS41 KPHI 311821
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
121 PM EST THU JAN 31 2013

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

  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-045-010021-
/O.NEW.KPHI.FL.W.0005.130131T1824Z-130201T0120Z/
/CDFP1.1.ER.130131T1824Z.130131T1900Z.130131T1920Z.NO/
121 PM EST THU JAN 31 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE BRANDYWINE CREEK AT CHADDS FORD.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 12:30 PM THURSDAY THE STAGE WAS 8.9 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS FORECAST. 
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS AFTERNOON AND CONTINUE TO RISE TO 
  NEAR 9.1 FEET BY THIS AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE BY THIS
  AFTERNOON.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    8.85  THU 12 PM    9.1    THU 2 PM 

&&

2 follow-up statements

651 
WGUS81 KPHI 312057
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
357 PM EST THU JAN 31 2013

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES 
  SCHUYLKILL RIVER AT NORRISTOWN AFFECTING CHESTER...MONTGOMERY AND PHILADELPHIA 
  COUNTIES 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-045-010412-
/O.EXT.KPHI.FL.W.0005.000000T0000Z-130201T0412Z/
/CDFP1.1.ER.130131T1801Z.130131T2015Z.130131T2212Z.NO/
357 PM EST THU JAN 31 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  3:30 PM THURSDAY THE STAGE WAS 9.2 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 9.2 FEET BY LATE THIS 
  AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE LATE THIS AFTERNOON.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

PAC029-091-101-010630-
/O.EXT.KPHI.FL.W.0004.000000T0000Z-130201T0630Z/
/NRSP1.1.ER.130131T1320Z.130131T1730Z.130201T0030Z.NO/
357 PM EST THU JAN 31 2013

THE FLOOD WARNING CONTINUES FOR
  THE SCHUYLKILL RIVER AT NORRISTOWN.
* AT  3:30 PM THURSDAY THE STAGE WAS 13.7 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 THIS 
  EVENING.
* IMPACT...AT 13.0 FEET...WATER BEGINS TO COVER AND CLOSE RIVERVIEW BOULEVARD IN 
  WEST NORRITON.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  NORRISTOWN       13.0   13.74  THU 3 PM    13.1    THU 7 PM 

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.19  THU 3 PM     9.2    THU 4 PM 

&&

389 
WGUS81 KPHI 010052
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
752 PM EST THU JAN 31 2013

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
 
  BRANDYWINE CREEK AT CHADDS FORD AFFECTING CHESTER AND DELAWARE COUNTIES
  SCHUYLKILL RIVER AT NORRISTOWN AFFECTING CHESTER...MONTGOMERY AND 
  PHILADELPHIA COUNTIES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-045-010122-
/O.CAN.KPHI.FL.W.0005.000000T0000Z-130201T0412Z/
/CDFP1.1.ER.130131T1801Z.130131T2015Z.130131T2215Z.NO/
752 PM EST THU JAN 31 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  7:30 PM THURSDAY THE STAGE WAS 8.6 FEET AND FALLING. 
* FLOOD STAGE IS 9.0 FEET. 
* FELL BELOW FLOOD STAGE AT  5:15 PM THURSDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 3.0 FEET BY SATURDAY MORNING.
* IMPACT...AT 10.0 FEET...THE INTERSECTION OF CREEK ROAD AND ROUTE 926 NEAR 
  POCOPSON FLOODS UPSTREAM OF CHADDS FORD.

$$

PAC029-091-101-010122-
/O.CAN.KPHI.FL.W.0004.000000T0000Z-130201T0630Z/
/NRSP1.1.ER.130131T1320Z.130131T1730Z.130131T2326Z.NO/
752 PM EST THU JAN 31 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE SCHUYLKILL RIVER AT NORRISTOWN.
* AT  7:30 PM THURSDAY THE STAGE WAS 12.6 FEET AND FALLING. 
* FLOOD STAGE IS 13.0 FEET. 
* FELL BELOW FLOOD STAGE AT  6:26 PM THURSDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 9.8 FEET BY SATURDAY MORNING.
* IMPACT...AT 15.0 FEET...RIVER ROAD IN WEST CONSHOHOCKEN BEGINS TO FLOOD. THE 
  LOWER GARAGES AT THE RIVERVIEW LANDING AND THE LOFTS AT VALLEY FORGE START TO 
  TAKE ON WATER. THE LOWER SECTION OF PORT INDAIN ROAD IN WEST NORRITON BECOMES 
  IMPASSABLE.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

SCHUYLKILL RIVER
  NORRISTOWN       13.0   12.59  THU 7 PM    11.9    CRESTED AND FALLING

BRANDYWINE CREEK
  CHADDS FORD      9.0    8.60  THU 7 PM     5.6     CRESTED AND FALLING 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 30, 7:38 PM EST	Special Weather Statement	PHI	Chester	67 min
Jan 30, 8:15 PM EST	Special Weather Statement	PHI	Chester, Delaware, Montgomery	60 min
Jan 30, 8:22 PM EST	Special Weather Statement	PHI	Berks, Lehigh	68 min
Jan 30, 9:36 PM EST	Special Weather Statement	PHI	Delaware, Philadelphia	114 min
Jan 30, 9:50 PM EST	Special Weather Statement	PHI	Bucks	115 min
Jan 30, 11:29 PM EST	Special Weather Statement	PHI	Bucks, Delaware, Philadelphia	2 hr
Jan 31, 12:10 AM EST	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
Jan 31, 12:34 AM EST	Special Weather Statement	PHI	Berks, Carbon, Chester, Lehigh, Monroe, Montgomery and 1 more	116 min
Jan 31, 1:34 AM EST	Special Weather Statement	PHI	Bucks, Delaware, Philadelphia	116 min
Jan 31, 2:06 AM EST	Areal Flood Advisory	PHI	Bucks, Chester, Lehigh, Monroe, Montgomery, Northampton	4 hr
Jan 31, 2:20 AM EST	Special Weather Statement	PHI	Chester, Lehigh, Monroe, Montgomery, Northampton	55 min
Jan 31, 2:56 AM EST	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Jan 31, 3:15 AM EST	Special Weather Statement	PHI	Bucks, Philadelphia	2 hr
Jan 31, 4:00 AM EST	Areal Flood Warning	PHI	Berks, Chester, Montgomery	10 hr
Jan 31, 4:42 AM EST	River Flood Warning	PHI	Montgomery	10 hr
Jan 31, 4:58 AM EST	Areal Flood Warning	PHI	Bucks	9 hr
Jan 31, 6:00 AM EST	Areal Flood Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	6 hr
Jan 31, 6:01 AM EST	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	12 hr
Jan 31, 6:17 AM EST	Areal Flood Warning	PHI	Northampton	6 hr
Jan 31, 8:14 AM EST	River Flood Warning	PHI	Chester, Montgomery, Philadelphia	12 hr
Jan 31, 11:47 AM EST	Areal Flood Warning	PHI	Montgomery, Philadelphia	4 hr
Jan 31, 6:56 PM EST	Special Weather Statement	PHI	Northampton	94 min

Nearby

River Flood Warnings in Pennsylvania, 2013 Every river flood warning in 2013

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.