Alert archive / Pennsylvania / River Flood Warnings in 2008

River Flood Warning 20, NWS Philadelphia/Mount Holly

March 8, 2008Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Mar 8, 2008, 1:05 PM EST for Bucks County, Pennsylvania. It took effect at Mar 8, 2008, 4:00 PM EST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Mar 8, 2008, 1:05 PM EST (18:05 UTC)
In effect from: Mar 8, 2008, 4:00 PM EST
Expired: Mar 9, 2008, 3:19 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 18:08 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 10.26 ft at Mar 8, 2008, 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.

000 
WGUS41 KPHI 081805
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
105 PM EST SAT MAR 08 2008

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

  NESHAMINY CREEK AT LANGHORNE AFFECTING BUCKS COUNTY

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

PAC017-090005-
/O.NEW.KPHI.FL.W.0020.080308T2300Z-080309T0941Z/
/LNGP1.1.ER.080308T2300Z.080309T0000Z.080309T0341Z.NO/
105 PM EST SAT MAR 08 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* THROUGH LATE TONIGHT...OR UNTIL THE  WARNING IS CANCELLED.
* AT 12:30 PM SATURDAY THE STAGE WAS 3.9 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE LATER TODAY AND CONTINUE TO RISE
  TO NEAR 9.8 FEET BY THIS EVENING. THE RIVER WILL FALL BELOW FLOOD 
  STAGE BY 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    3.94  SAT 12 PM    9.8  SAT 7 PM 

&&

3 follow-up statements

000 
WGUS41 KPHI 082028
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
328 PM EST SAT MAR 08 2008

...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY FOR THE
NESHAMINY CREEK IN BUCKS COUNTY...

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

PAC017-090228-
/O.EXT.KPHI.FL.W.0020.080308T2100Z-080309T1212Z/
/LNGP1.2.ER.080308T2100Z.080309T0300Z.080309T0612Z.NO/
328 PM EST SAT MAR 08 2008

...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* AT 3:25 PM, THE STAGE WAS 9.2 FEET AND RISING. 
* MODERATE FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* THE CREEK IS FORECAST TO RISE TO NEAR 11.2 FEET THIS EVENING AND 
  IT SHOULD FALL BACK BELOW FLOOD STAGE LATE TONIGHT.
* AT 11.0 FEET, CONSIDERABLE FLLODING IS REPORTED THROUGHOUT THE
  LOWER NESHAMINY CREEK BASIN.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    9.2  SAT 325 PM    11.2  SAT 10 PM

&&

IOVINO

000 
WGUS81 KPHI 090105
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
805 PM EST SAT MAR 08 2008

...THE FLOOD WARNING CONTINUES FOR THE NESHAMINY CREEK...
 
...MODERATE FLOODING IS OCCURRING WITH WATER LEVELS BEGINNING TO 
DECREASE...

PAC017-091105-
/O.CON.KPHI.FL.W.0020.000000T0000Z-080309T1212Z/
/LNGP1.2.ER.080308T2009Z.080308T2345Z.080309T0612Z.NO/
805 PM EST SAT MAR 08 2008

THE FLOOD WARNING CONTINUES FOR 
  THE NESHAMINY CREEK AT LANGHORNE.
* UNTIL LATE TONIGHT.
* AT 8:00 PM, THE STAGE WAS 10.0 FEET AND FALLING. 
* MODERATE FLOODING IS OCCURRING WITH WATER LEVELS BEGINNING TO 
  DECREASE.
* FLOOD STAGE IS 9.0 FEET. 
* THE CREEK CRESTED AT LANGEHORNE AT 10.3 FEET AT 6:30 PM.  THE
  CREEK SHOULD FALL BACK BELOW FLOOD STAGE AROUND MIDNIGHT.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0   10.0  SAT 8 PM       CRESTED 

&&

IOVINO

000 
WGUS81 KPHI 090719
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
319 AM EDT SUN MAR 09 2008

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

PAC017-090749-
/O.CAN.KPHI.FL.W.0020.000000T0000Z-080309T1212Z/
/LNGP1.2.ER.080308T2009Z.080308T2345Z.080309T0622Z.NO/
319 AM EDT SUN MAR 09 2008

* AT  3:00 AM SUNDAY THE STAGE WAS 8.6 FEET AND FALLING. 
* FLOOD STAGE IS 9.0 FEET. 
* SINCE THE STREAM LEVEL AT LANGHORNE IS NOW BELOW FLOOD STAGE
  THE WARNING HAS BEEN CANCELLED.
$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

NESHAMINY CREEK
  LANGHORNE        9.0    8.64  SUN 3 AM     6.9  SUN 8 AM 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 4:40 AM EST	Wind Advisory	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	27 hr
Mar 8, 12:03 PM EST	Flash Flood Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Mar 8, 3:58 PM EST	High Wind Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	6 hr
Mar 8, 5:22 PM EST	Severe Thunderstorm Warning	PHI	Delaware	23 min
Mar 8, 5:44 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	46 min
Mar 8, 5:49 PM EST	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	41 min

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.