Alert archive / Pennsylvania / River Flood Warnings in 2010

River Flood Warning 2, NWS Philadelphia/Mount Holly

January 25, 2010Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Jan 25, 2010, 12:00 PM EST for Bucks County, Pennsylvania. It took effect at Jan 25, 2010, 1:00 PM EST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Jan 25, 2010, 12:00 PM EST (17:00 UTC)
In effect from: Jan 25, 2010, 1:00 PM EST
Expired: Jan 25, 2010, 10:53 PM EST
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 17:01 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 10.45 ft at Jan 25, 2010, 7:00 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.

215 
WGUS41 KPHI 251700
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1200 PM EST MON JAN 25 2010

...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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC017-252300-
/O.NEW.KPHI.FL.W.0002.100125T1800Z-100126T0808Z/
/LNGP1.1.ER.100125T1800Z.100126T0000Z.100126T0208Z.NO/
1200 PM EST MON JAN 25 2010

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 11:45 AM MONDAY THE STAGE WAS 3.8 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE THIS AFTERNOON AND CONTINUE TO 
  RISE TO NEAR 9.5 FEET THIS EVENING. THE RIVER WILL FALL BELOW FLOOD
  STAGE TONIGHT.
* 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    3.79  MON 12 PM    9.5  MON 7 PM 

&&

3 follow-up statements

940 
WGUS41 KPHI 251930
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
230 PM EST MON JAN 25 2010

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC017-260130-
/O.EXT.KPHI.FL.W.0002.000000T0000Z-100126T0840Z/
/LNGP1.2.ER.100125T1851Z.100126T0100Z.100126T0240Z.NO/
230 PM EST MON JAN 25 2010

...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 2:15 PM MONDAY THE STAGE WAS 9.4 FEET. 
* MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.5 FEET BY 
  THIS EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE TONIGHT.
* IMPACT...AT 11.0 FEET...CONSIDERABLE DAMAGE IS REPORTED 
  THROUGHOUT THE LOWER NESHAMINY CREEK BASIN

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    9.41  MON 2 PM    10.5  MON 8 PM 

&&

803 
WGUS81 KPHI 260130
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
830 PM EST MON JAN 25 2010

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

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC017-260834-
/O.EXT.KPHI.FL.W.0002.000000T0000Z-100126T0834Z/
/LNGP1.2.ER.100125T1851Z.100126T0001Z.100126T0234Z.NO/
830 PM EST MON JAN 25 2010

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:00 PM MONDAY THE STAGE WAS 10.4 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  LATE TONIGHT.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0   10.38  MON 8 PM      CRESTED 10.45 AT 7 PM 

&&

RPW

725 
WGUS81 KPHI 260353
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1053 PM EST MON JAN 25 2010

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

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

PAC017-260423-
/O.CAN.KPHI.FL.W.0002.000000T0000Z-100126T0834Z/
/LNGP1.2.ER.100125T1851Z.100126T0001Z.100126T0329Z.NO/
1053 PM EST MON JAN 25 2010

* AT 10:45 PM MONDAY THE STAGE WAS 8.8 FEET. 
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* 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    8.78  MON 11 PM     CRESTED  

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 25, 9:42 AM EST	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	63 min
Jan 25, 9:56 AM EST	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Jan 25, 10:09 AM EST	Areal Flood Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	10 hr
Jan 25, 11:37 AM EST	Areal Flood Warning	PHI	Bucks	6 hr
Jan 25, 12:08 PM EST	Areal Flood Advisory	PHI	Bucks, Chester, Montgomery	29 days
Jan 25, 12:55 PM EST	River Flood Warning	PHI	Delaware	3 hr
Jan 25, 1:50 PM EST	River Flood Warning	PHI	Chester	4 hr

Nearby

River Flood Warnings in Pennsylvania, 2010 Every river flood warning in 2010

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.