Alert archive / Pennsylvania / River Flood Warnings in 2009

River Flood Warning 2, NWS Philadelphia/Mount Holly

June 13, 2009Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Jun 13, 2009, 5:16 PM EDT for Bucks County, Pennsylvania. It took effect at Jun 13, 2009, 7:43 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jun 13, 2009, 5:16 PM EDT (21:16 UTC)
In effect from
Jun 13, 2009, 7:43 PM EDT
Expired
Jun 14, 2009, 6:00 AM EDT
In force
10 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
Minor

County Bucks County, PA

The radar

The Philadelphia radar (KDIX), 73 km from the middle of the area, began a volume at 21:18 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 Neshaminy Creek near Langhorne (LNGP1). The gauge peaked at 11.85 ft at Jun 14, 2009, 12:00 AM EDT.

actionminormoderate51006/1306/1406/15
Action stage
8 ft
Minor stage
9 ft
Moderate stage
12 ft
Major stage
14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01465500, 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.

000 
WGUS41 KPHI 132116
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
516 PM EDT SAT JUN 13 2009

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

  NESHAMINY CREEK AT LANGHORNE AFFECTING BUCKS COUNTY

...MINOR FLOODING IS FORECAST FOR THE NESHAMINY CREEK...

PAC017-140316-
/O.NEW.KPHI.FL.W.0002.090614T0000Z-090614T1200Z/
/LNGP1.1.ER.090614T0000Z.090614T0200Z.090614T0600Z.NO/
516 PM EDT SAT JUN 13 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL SUNDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT  4:30 PM SATURDAY THE STAGE WAS 1.6 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO RISE
  TO NEAR 9.2 FEET BY TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE BY 
  AFTER MIDNIGHT TOMORROW.
* IMPACT...AT 9.0 FEET...FLOOD STAGE REACHED WITH SOME HOMES FLOODED IN 
  LANGHORNE TERRACE

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    1.61  SAT 4 PM     9.2  SAT 10 PM

&&
3 follow-up statements
000 
WGUS41 KPHI 132219
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
619 PM EDT SAT JUN 13 2009

...FORECAST FLOODING CHANGED FROM MINOR TO MAJOR SEVERITY FOR THE 
FOLLOWING RIVERS IN PENNSYLVANIA...
  NESHAMINY CREEK AT LANGHORNE AFFECTING BUCKS COUNTY

...MAJOR FLOODING IS FORECAST FOR THE NESHAMINY CREEK...

PAC017-140619-
/O.EXT.KPHI.FL.W.0002.090613T2343Z-090614T1800Z/
/LNGP1.3.ER.090613T2343Z.090614T0100Z.090614T1200Z.NO/
619 PM EDT SAT JUN 13 2009

...FORECAST FLOODING INCREASED FROM MINOR TO MAJOR SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL SUNDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  6:00 PM SATURDAY THE STAGE WAS 2.2 FEET. 
* MAJOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO RISE
  TO NEAR 12.1 FEET BY TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE BY
  TOMORROW MORNING.
* IMPACT...AT 11.0 FEET...AT THIS LEVEL CONSIDERABLE DAMAGE IS REPORTED 
  THROUGHOUT THE LOWER NESHAMINY CREEK BASIN

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    2.25  SAT 6 PM      12.1  SAT evening 9 to
                                              10 pm 

&&
000 
WGUS81 KPHI 140059
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
859 PM EDT SAT JUN 13 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  NESHAMINY CREEK AT LANGHORNE AFFECTING BUCKS COUNTY 

...MODERATE FLOODING IS OCCURRING AND MAJOR FLOODING IS FORECAST FOR 
NESHAMINY CREEK...

PAC017-141259-
/O.EXT.KPHI.FL.W.0002.000000T0000Z-090614T1900Z/
/LNGP1.3.ER.090613T2317Z.090614T0100Z.090614T1300Z.NO/
859 PM EDT SAT JUN 13 2009

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL SUNDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:45 PM SATURDAY THE STAGE WAS 10.6 FEET. 
* MODERATE FLOODING IS OCCURRING AND MAJOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 12.0 FEET  
  TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE LATE SUNDAY
  MORNING.
* IMPACT...AT 11.0 FEET...AT THIS LEVEL CONSIDERABLE DAMAGE IS
  REPORTED THROUGHOUT THE LOWER NESHAMINY CREEK BASIN

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0   10.58  SAT 845 PM    12.1  AROUND MIDNIGHT 

&&
000 
WGUS81 KPHI 140647
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
246 AM EDT SUN JUN 14 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...
 
  NESHAMINY CREEK AT LANGHORNE AFFECTING BUCKS COUNTY 

...MINOR FLOODING IS OCCURRING AND EXPECTED TO CONTINUE ON THE NESHAMINY
CREEK...

PAC017-141000-
/O.EXT.KPHI.FL.W.0002.000000T0000Z-090614T1000Z/
/LNGP1.2.ER.090613T2317Z.090614T0430Z.090614T0800Z.NO/
246 AM EDT SUN JUN 14 2009

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* EARLY THIS MORNING.
* AT  2:30 AM SUNDAY THE STAGE WAS 10.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL FALL BELOW FLOOD STAGE  
  EARLY THIS MORNING.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    9.97  SUN 3 AM     9.0  SUN 4 AM 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 2:27 PM EDTAreal Flood AdvisoryPHIChester4 hr
Jun 13, 2:32 PM EDTFlash Flood WarningPHIBucks2 hr
Jun 13, 2:33 PM EDTFlash Flood WarningPHICarbon, Lehigh, Monroe, Northampton112 min
Jun 13, 2:57 PM EDTFlash Flood WarningPHIMontgomery2 hr
Jun 13, 3:17 PM EDTAreal Flood AdvisoryPHIBucks3 hr
Jun 13, 4:07 PM EDTFlash Flood WarningPHIBucks, Montgomery, Philadelphia6 hr
Jun 13, 4:59 PM EDTAreal Flood AdvisoryPHIChester4 hr
Jun 13, 6:06 PM EDTFlash Flood WarningPHIChester2 hr
Jun 13, 6:39 PM EDTSevere Thunderstorm WarningPHIMonroe66 min
Jun 13, 7:29 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe61 min

Nearby

River Flood Warnings in Pennsylvania, 2009Every river flood warning in 2009

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.