Alert archive / Pennsylvania / River Flood Warnings in 2008

River Flood Warning 38, NWS Philadelphia/Mount Holly

June 4, 2008Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Jun 4, 2008, 10:15 PM EDT for Bucks County, Pennsylvania. It took effect at Jun 5, 2008, 1:41 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Jun 4, 2008, 10:15 PM EDT (02:15 UTC)
In effect from: Jun 5, 2008, 1:41 AM EDT
Expired: Jun 5, 2008, 6:36 AM EDT
In force: 5 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 02:15 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 9.56 ft at Jun 5, 2008, 2:00 AM EDT.

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 050215
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1015 PM EDT WED JUN 04 2008

...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...
...THE RIVER IS EXPECTED TO RISE VERY RAPIDLY THROUGH EARLY THURSDAY MORNING...

PAC017-050815-
/O.NEW.KPHI.FL.W.0038.080605T0541Z-080605T1231Z/
/LNGP1.1.ER.080605T0541Z.080605T0600Z.080605T0631Z.NO/
1015 PM EDT WED JUN 04 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* FROM LATE TONIGHT TO THURSDAY MORNING...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT  9:46 PM WEDNESDAY THE STAGE WAS 5.2 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY MIDNIGHT THURSDAY AND 
  CONTINUE TO RISE TO NEAR 9.3 FEET BY 2 AM THURSDAY. THE 
  RIVER WILL FALL BELOW BY 5AM THURSDAY MORNING.
* 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    5.21  WED 10 PM    9.3  THU 2 AM 

&&

2 follow-up statements

000 
WGUS81 KPHI 050700
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
300 AM EDT THU JUN 05 2008

...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...

PAC017-051400-
/O.EXT.KPHI.FL.W.0038.000000T0000Z-080605T1400Z/
/LNGP1.1.ER.080605T0445Z.080605T0615Z.080605T1000Z.NO/
300 AM EDT THU JUN 05 2008

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL THIS MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:30 AM THURSDAY THE STAGE WAS 9.5 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL FALL TO BELOW FLOOD STAGE 
  THIS MORNING.
* IMPACT...AT 10.0 FEET...AT THIS LEVEL SOME HOMES IN THE AREA OF THE 
  LANGHORNE GAGE ARE EVACUATED

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    9.53  THU 2 AM     CRESTING AT 2 AM 

&&

000 
WGUS81 KPHI 051036
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
636 AM EDT THU JUN 05 2008

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

...SIGNIFICANT RISES NEAR NESHAMINY CREEK AT LANGHORNE...

PAC017-051106-
/O.CAN.KPHI.FL.W.0038.000000T0000Z-080605T1200Z/
/LNGP1.1.ER.080605T0445Z.080605T0615Z.080605T0946Z.NO/
636 AM EDT THU JUN 05 2008

* AT  6:15 AM THURSDAY THE STAGE WAS 8.8 FEET. 
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 9.0 FEET. 

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    8.81  THU 6 AM     CRESTED AND FALLING 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 10:01 PM EDT	Areal Flood Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	4 hr
Jun 5, 4:34 AM EDT	Excessive Heat Watch	PHI	Berks, Delaware, Lehigh, Northampton, Philadelphia	71 hr

Nearby

River Flood Warnings in Pennsylvania, 2008 Every river flood warning in 2008

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.