Alert archive / Pennsylvania / River Flood Warnings in 2013

River Flood Warning 33, NWS Philadelphia/Mount Holly

July 1, 2013Chester County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Jul 1, 2013, 11:57 AM EDT for Chester County, Pennsylvania. It took effect at Jul 1, 2013, 12:57 PM EDT. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jul 1, 2013, 11:57 AM EDT (15:57 UTC)
In effect from
Jul 1, 2013, 12:57 PM EDT
Expired
Jul 1, 2013, 2:02 PM EDT
In force
65 min
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 15:56 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 7.27 ft at Jul 1, 2013, 12:00 PM EDT.

actionminormoderate24681007/0107/02
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.

307 
WGUS41 KPHI 011557
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1157 AM EDT MON JUL 1 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.

&&

PAC029-012157-
/O.NEW.KPHI.FL.W.0033.130701T1657Z-130702T0707Z/
/DWNP1.1.ER.130701T1657Z.130701T2200Z.130702T0107Z.NO/
1157 AM EDT MON JUL 1 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 11:45 AM MONDAY THE STAGE WAS 6.7 FEET. 
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS AFTERNOON AND CONTINUE TO RISE TO 
  NEAR 7.5 FEET BY THIS EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE BY 
  TONIGHT.


$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG   DAY TIME      CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    6.69  MON 12 PM     7.5    MON 6 PM 

&&
1 follow-up statement
078 
WGUS81 KPHI 011802
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
202 PM EDT MON JUL 1 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.

&&

PAC029-011832-
/O.CAN.KPHI.FL.W.0033.000000T0000Z-130702T0707Z/
/DWNP1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
202 PM EDT MON JUL 1 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE EAST BRANCH BRANDYWINE CREEK BELOW DOWNINGTOWN.
* AT 1:45 PM MONDAY THE STAGE WAS 5.9 FEET. 
* FLOOD STAGE IS 7.0 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 6.7 FEET. THE RIVER WILL 
  CONTINUE TO FALL TO 3.1 FEET BY TOMORROW MORNING.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG   DAY TIME      CREST

BRANDYWINE CREEK
  DOWNINGTOWN      7.0    5.94  MON 2 PM      5.3    MON 3 PM 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 2:26 AM EDTAreal Flood AdvisoryPHIBerks, Lehigh3 hr
Jul 1, 3:33 AM EDTSpecial Weather StatementPHICarbon42 min
Jul 1, 3:50 AM EDTAreal Flood AdvisoryPHICarbon, Monroe, Northampton3 hr
Jul 1, 5:37 AM EDTFlash Flood WarningPHIMonroe, Northampton6 hr
Jul 1, 5:55 AM EDTAreal Flood AdvisoryPHIChester3 hr
Jul 1, 6:49 AM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 hr
Jul 1, 6:58 AM EDTAreal Flood AdvisoryPHIBucks, Chester, Montgomery4 hr
Jul 1, 7:52 AM EDTFlash Flood WarningPHIBucks, Lehigh, Montgomery, Northampton4 hr
Jul 1, 8:38 AM EDTAreal Flood WarningPHIChester6 hr
Jul 1, 9:35 AM EDTAreal Flood WarningPHIBucks6 hr
Jul 1, 1:56 PM EDTAreal Flood WarningPHIMontgomery6 hr
Jul 1, 2:14 PM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 hr

Nearby

River Flood Warnings in Pennsylvania, 2013Every 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.