Alert archive / Pennsylvania / River Flood Warnings in 2008

River Flood Warning 3, NWS Philadelphia/Mount Holly

February 13, 2008Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Feb 13, 2008, 2:31 PM EST for Bucks County, Pennsylvania. It took effect at Feb 13, 2008, 4:00 PM EST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Feb 13, 2008, 2:31 PM EST (19:31 UTC)
In effect from: Feb 13, 2008, 4:00 PM EST
Expired: Feb 14, 2008, 1:18 AM EST
In force: 9 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 19:34 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 9.93 ft at Feb 13, 2008, 10:00 PM EST.

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 131931
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
231 PM EST WED FEB 13 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...

PAC017-140131-
/O.NEW.KPHI.FL.W.0003.080213T2100Z-080214T0707Z/
/LNGP1.1.ER.080213T2100Z.080213T2300Z.080214T0107Z.NO/
231 PM EST WED FEB 13 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:15 PM WEDNESDAY THE STAGE WAS 8.1 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE NESHAMINY CREEK AT LANGHORNE IS EXPECTED TO RISE
  ABOVE FLOOD STAGE BY THIS AFTERNOON AND CONTINUE TO RISE TO NEAR
  9.5 FEET BY THIS EVENING. 
* 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    8.05  WED 2 PM     9.5  WED 6 PM 

&&

KRUZDLO

3 follow-up statements

000 
WGUS41 KPHI 140008
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
708 PM EST WED FEB 13 2008

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

...MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST...

PAC017-140608-
/O.EXT.KPHI.FL.W.0003.000000T0000Z-080214T1128Z/
/LNGP1.2.ER.080213T2050Z.080214T0200Z.080214T0528Z.NO/
708 PM EST WED FEB 13 2008

...FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL THURSDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 6:45 PM WEDNESDAY THE STAGE WAS 9.6 FEET. 
* MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE NESHAMINY CREEK WILL CONTINUE RISING TO NEAR 10.3
  FEET THIS EVENING. 
* 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    9.61  WED 7 PM    10.3  WED 9 PM 

&&

000 
WGUS81 KPHI 140351
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1051 PM EST WED FEB 13 2008

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVER IN 
PENNSYLVANIA...
 
  PERKIOMEN CREEK AT GRATERFORD AFFECTING MONTGOMERY COUNTY

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

...MINOR FLOODING IS OCCURRING ON THE NESHAMINY CREEK...

PAC017-141100-
/O.EXT.KPHI.FL.W.0003.000000T0000Z-080214T1100Z/
/LNGP1.1.ER.080213T2050Z.080214T0300Z.080214T0500Z.NO/
1051 PM EST WED FEB 13 2008

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* INTO THE OVERNIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:15 PM WEDNESDAY THE STAGE WAS 9.9 FEET. 
* MINOR FLOODING IS OCCURRING.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE NESHAMINY CREEK AT LANGHORN WILL FALL BELOW FLOOD
  STAGE OVERNIGHT.
* IMPACT...AT 10.0 FEET...AT THIS LEVEL SOME HOMES IN THE AREA OF
  THE LANGHORNE GAGE ARE EVACUATED.

$$

PAC091-140421-
/O.CAN.KPHI.FL.W.0002.000000T0000Z-080214T0807Z/
/GRAP1.1.ER.080213T1900Z.080213T2315Z.080214T0303Z.NO/
1051 PM EST WED FEB 13 2008

THE FLOOD WARNING IS CANCELLED FOR
  THE PERKIOMEN CREEK AT GRATERFORD
* AT 10:30 PM WEDNESDAY THE STAGE WAS 10.6 FEET. 
* CRESTED...NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 11.0 FEET. 
* IMPACT...AT 10.0 FEET...THE FIRST EVACUATIONS BEGIN IN SWENKSVILLE 
  UPSTREAM OF THE GAGE.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

PERKIOMEN CREEK
  GRATERFORD       11.0   10.63  WED 10 PM    CRESTED 

NESHAMINY CREEK
  LANGHORNE         9.0    9.90  WED 10 PM    OVERNIGHT

&&

000 
WGUS81 KPHI 140618
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
118 AM EST THU FEB 14 2008

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

...FLOODING HAS ENDED ALONG THE NESHAMINY CREEK AT LANGHORNE...

PAC017-140648-
/O.CAN.KPHI.FL.W.0003.000000T0000Z-080214T1100Z/
/LNGP1.1.ER.080213T2050Z.080214T0300Z.080214T0515Z.NO/
118 AM EST THU FEB 14 2008

* AT 12:46 AM THURSDAY THE STAGE WAS 8.7 FEET. 
* THE NESHAMINY CREEK HAS CRESTED AND HAS FALLEN BELOW FLOOD STAGE.
* NO ADDITIONAL FLOODING IS EXPECTED.
* FLOOD STAGE IS 9.0 FEET. 

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       7AM THU

NESHAMINY CREEK
  LANGHORNE        9.0    8.71  THU 1 AM     5.7  THU 7 AM 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 13, 1:53 PM EST	River Flood Warning	PHI	Montgomery	9 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.