Alert archive / Pennsylvania / River Flood Warnings in 2013

River Flood Warning 42, NWS Philadelphia/Mount Holly

August 13, 2013Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 13, 2013, 11:22 AM EDT for Chester County, Delaware County, Pennsylvania. It took effect at Aug 13, 2013, 12:00 PM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Aug 13, 2013, 11:22 AM EDT (15:22 UTC)
In effect from
Aug 13, 2013, 12:00 PM EDT
Expired
Aug 14, 2013, 3:47 AM EDT
In force
16 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 15:21 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 11.71 ft at Aug 13, 2013, 8:00 PM EDT.

actionminormoderatemajor51008/1308/1408/15
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.

280 
WGUS41 KPHI 131522
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1122 AM EDT TUE AUG 13 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.

&&

PAC029-045-132122-
/O.NEW.KPHI.FL.W.0042.130813T1600Z-130814T0500Z/
/CDFP1.1.ER.130813T1600Z.130813T2100Z.130813T2300Z.NO/
1122 AM EDT TUE AUG 13 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE BRANDYWINE CREEK AT CHADDS FORD.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:30 AM TUESDAY THE STAGE WAS 7.0 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 10.2 FEET BY LATE THIS AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE 
  BY THIS EVENING.
* 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    6.97  TUE 10 AM   10.2    TUE 5 PM 

&&
4 follow-up statements
345 
WGUS81 KPHI 132002
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
402 PM EDT TUE AUG 13 2013

...THE FLOOD WARNING CONTINUES 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.

&&

PAC029-045-140351-
/O.EXT.KPHI.FL.W.0042.000000T0000Z-130814T0351Z/
/CDFP1.1.ER.130813T1830Z.130813T1901Z.130813T2151Z.NO/
402 PM EDT TUE AUG 13 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  3:30 PM TUESDAY THE STAGE WAS 9.7 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* 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.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0    9.73  TUE 3 PM     9.2    TUE 5 PM 

&&
448 
WGUS81 KPHI 132359
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
758 PM EDT TUE AUG 13 2013

...THE FLOOD WARNING CONTINUES 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.

&&

PAC029-045-140900-
/O.EXT.KPHI.FL.W.0042.000000T0000Z-130814T0900Z/
/CDFP1.2.ER.130813T1830Z.130813T2300Z.130814T0300Z.NO/
758 PM EDT TUE AUG 13 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  7:30 PM TUESDAY THE STAGE WAS 11.6 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY TONIGHT.
* IMPACT...AT 11.8 FEET...BRANDYWINE RIVER MUSEUM BEGINS TO TAKE ON WATER

$$

DEC003-140958-
/O.ROU.KPHI.HY.S.0000.000000T0000Z-000000T0000Z/
/WMND1.N.UU.000000T0000Z.000000T0000Z.000000T0000Z.OO/
758 PM EDT TUE AUG 13 2013

FORECAST INFORMATION FOR
  BRANDYWINE CREEK AT WILMINGTON.
* AT  7:15 PM TUESDAY THE STAGE WAS 15.3 FEET. 
* FLOOD STAGE IS 16.5 FEET. 
* FORECAST...THE RIVER WILL RISE TO NEAR 16.3 FEET THIS EVENING.
* IMPACT...AT 14.5 FEET...MINOR LOWLAND FLOODING ALONG THE CREEK IN PARK.

$$

                   FLD     OBSERVED           FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

BRANDYWINE CREEK
  CHADDS FORD      9.0   11.61  TUE 7 PM    11.3    TUE 8 PM 
  WILMINGTON       16.5   15.33  TUE 7 PM    16.3    TUE 8 PM 

&&
236 
WGUS81 KPHI 140523
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
123 AM EDT WED AUG 14 2013

...THE FLOOD WARNING CONTINUES 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.

&&

PAC029-045-141321-
/O.EXT.KPHI.FL.W.0042.000000T0000Z-130814T1321Z/
/CDFP1.2.ER.130813T1830Z.130814T0015Z.130814T0721Z.NO/
123 AM EDT WED AUG 14 2013

THE FLOOD WARNING CONTINUES FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT 12:30 AM WEDNESDAY THE STAGE WAS 10.7 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY EARLY THIS 
  MORNING.
* 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   10.69  WED  12 AM   CRESTED WITH CONTINUED FALLING.

&&
310 
WGUS81 KPHI 140747
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
347 AM EDT WED AUG 14 2013

...THE FLOOD WARNING IS CANCELLED 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.

&&

PAC029-045-140817-
/O.CAN.KPHI.FL.W.0042.000000T0000Z-130814T1321Z/
/CDFP1.2.ER.130813T1830Z.130814T0015Z.130814T0630Z.NO/
347 AM EDT WED AUG 14 2013

THE FLOOD WARNING IS CANCELLED FOR
  THE BRANDYWINE CREEK AT CHADDS FORD.
* AT  3:30 AM WEDNESDAY THE STAGE WAS 7.6 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FELL BELOW FLOOD STAGE AT  2:30 AM WEDNESDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 3.5 FEET BY TOMORROW MORNING.
* 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    7.59  WED  3 AM    RAPIDLY FALLING.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 2:45 AM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more9 hr
Aug 13, 5:15 AM EDTAreal Flood AdvisoryPHIBerks, Chester, Montgomery4 hr
Aug 13, 5:47 AM EDTFlash Flood WarningPHIChester4 hr
Aug 13, 6:07 AM EDTAreal Flood AdvisoryPHIBucks, Lehigh, Northampton7 hr
Aug 13, 6:07 AM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia53 min
Aug 13, 6:20 AM EDTAreal Flood AdvisoryPHIBucks, Delaware, Philadelphia4 hr
Aug 13, 6:23 AM EDTSevere Thunderstorm WarningPHIChester, Delaware67 min
Aug 13, 6:32 AM EDTTornado WarningPHIChester43 min
Aug 13, 6:36 AM EDTFlash Flood WarningPHIChester, Delaware, Montgomery8 hr
Aug 13, 7:05 AM EDTSevere Thunderstorm WarningPHIDelaware, Philadelphia40 min
Aug 13, 7:14 AM EDTFlash Flood WarningPHIBerks4 hr
Aug 13, 7:42 AM EDTSpecial Weather StatementPHIPhiladelphia48 min
Aug 13, 7:54 AM EDTFlash Flood WarningPHIDelaware, Montgomery, Philadelphia8 hr
Aug 13, 7:54 AM EDTSpecial Weather StatementPHIDelaware, Philadelphia66 min
Aug 13, 8:07 AM EDTRiver Flood WarningPHIChester9 hr
Aug 13, 8:20 AM EDTFlash Flood WarningPHIBucks8 hr
Aug 13, 9:50 AM EDTFlash Flood WarningPHIChester4 hr
Aug 13, 2:18 PM EDTAreal Flood WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia9 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.