Alert archive / Pennsylvania / River Flood Warnings in 2013

River Flood Warning 45, NWS Philadelphia/Mount Holly

October 11, 2013Chester County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 11, 2013, 8:32 AM EDT for Chester County, Pennsylvania. It took effect at Oct 11, 2013, 8:37 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Oct 11, 2013, 8:32 AM EDT (12:32 UTC)
In effect from: Oct 11, 2013, 8:37 AM EDT
Expired: Oct 11, 2013, 2:58 PM EDT
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Minor

County Chester County, PA

The radar

The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 12:32 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 East Branch Brandywine Creek below Downingtown (DWNP1). The gauge peaked at 8.00 ft at Oct 11, 2013, 12:00 PM EDT.

Action stage: 6 ft
Minor stage: 7 ft
Moderate stage: 9 ft
Major stage: 11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01480870, 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.

076 
WGUS41 KPHI 111232
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
832 AM EDT FRI OCT 11 2013

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

  EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-111832-
/O.NEW.KPHI.FL.W.0045.131011T1237Z-131012T0004Z/
/DWNP1.1.ER.131011T1237Z.131011T1400Z.131011T1804Z.NO/
832 AM EDT FRI OCT 11 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  7:45 AM FRIDAY THE STAGE WAS 6.0 FEET. 
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE WITHIN THE NEXT HOUR AND CONTINUE TO RISE TO
  NEAR 7.7 FEET BY LATE THIS MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE BY
  THIS AFTERNOON.


$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    5.96  FRI 8 AM     7.7    FRI 10 AM

&&

3 follow-up statements

029 
WGUS81 KPHI 111358
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
958 AM EDT FRI OCT 11 2013

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
 
  EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-112339-
/O.EXT.KPHI.FL.W.0045.000000T0000Z-131011T2339Z/
/DWNP1.1.ER.131011T1243Z.131011T1600Z.131011T1739Z.NO/
958 AM EDT FRI OCT 11 2013

THE FLOOD WARNING CONTINUES FOR
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  9:45 AM FRIDAY THE STAGE WAS 8.1 FEET. 
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 8.8 FEET BY THIS AFTERNOON. 
  THE RIVER WILL FALL BELOW FLOOD STAGE THIS AFTERNOON.


$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    8.06  FRI 10 AM    8.8    FRI 12 PM

&&

230 
WGUS81 KPHI 111821
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
221 PM EDT FRI OCT 11 2013

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
 
  EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-120009-
/O.EXT.KPHI.FL.W.0045.000000T0000Z-131012T0009Z/
/DWNP1.1.ER.131011T1243Z.131011T1615Z.131011T1809Z.NO/
221 PM EDT FRI OCT 11 2013

THE FLOOD WARNING CONTINUES FOR
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 1:45 PM FRIDAY THE STAGE WAS 7.9 FEET. 
* FLOOD STAGE IS 7.0 FEET. 
* MINOR FLOODING IS OCCURRING.
* FORECAST...THE CREEK WILL CONTINUE TO FALL TO BELOW FLOOD STAGE LATE THIS 
  AFTERNOON.


$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    7.92  FRI 2 PM      CRESTED AND FALLING 

&&

GORSE

463 
WGUS81 KPHI 111858
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
258 PM EDT FRI OCT 11 2013

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...
 
  EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN AFFECTING CHESTER COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-111928-
/O.CAN.KPHI.FL.W.0045.000000T0000Z-131012T0009Z/
/DWNP1.1.ER.131011T1243Z.131011T1615Z.131011T1828Z.NO/
258 PM EDT FRI OCT 11 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 2:45 PM FRIDAY THE STAGE WAS 6.6 FEET. 
* FLOOD STAGE IS 7.0 FEET. 
* THE CREEK FELL BELOW FLOOD STAGE AT 2:28 PM FRIDAY.
* FORECAST...THE CREEK WILL CONTINUE TO FALL.


$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    6.63  FRI 3 PM      FALLING 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 12:19 AM EDT	Special Weather Statement	PHI	Chester	86 min
Oct 11, 3:15 AM EDT	Areal Flood Advisory	PHI	Chester	9 hr
Oct 11, 4:43 AM EDT	Areal Flood Advisory	PHI	Delaware	4 hr
Oct 11, 4:47 AM EDT	Areal Flood Advisory	PHI	Montgomery, Philadelphia	118 min
Oct 11, 5:08 AM EDT	Special Weather Statement	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	3 hr
Oct 11, 12:00 PM EDT	River Flood Warning	PHI	Chester, Delaware	16 hr

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.