Alert archive / Pennsylvania / River Flood Warnings in 2020
River Flood Warning 59, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Dec 25, 2020, 2:28 AM EST for Bucks County, Pennsylvania. It took effect at Dec 25, 2020, 7:00 AM EST. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 25, 2020, 2:28 AM EST (07:28 UTC)
- In effect from
- Dec 25, 2020, 7:00 AM EST
- Expired
- Dec 25, 2020, 5:18 PM EST
- In force
- 10 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Minor
County Bucks County, PA
The radar
The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 07:28 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 11.37 ft at Dec 25, 2020, 10:00 AM 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.
219 WGUS41 KPHI 250728 FLWPHI BULLETIN - EAS ACTIVATION REQUESTED Flood Warning National Weather Service Mount Holly NJ 228 AM EST Fri Dec 25 2020 ...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. For the Neshaminy Creek...including Langhorne...Minor flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov/phi. PAC017-251800- /O.NEW.KPHI.FL.W.0059.201225T1200Z-201225T1800Z/ /LNGP1.1.ER.201225T1200Z.201225T1200Z.201225T1200Z.NO/ 228 AM EST Fri Dec 25 2020 The National Weather Service in Mount Holly has issued a * Flood Warning for the Neshaminy Creek At Langhorne. * From this morning to this afternoon. * At 2:15 AM EST Friday the stage was 8.4 feet. * Flood stage is 9.0 feet. * Minor flooding is forecast. * Forecast...The river is expected to rise to a crest of 9.0 feet this morning. * Impact at 7.0 feet...Water begins to overflow the lowest banks, on both sides of the creek, into adjacent wooded areas. Impact at 9.0 feet...Flooding begins on Bridle Drive in Middletown Township. * Flood History...This crest compares to a previous crest of 9.1 feet on 03/09/1995. && Stream Fld Observed Fcsts (1 am) Crest Location Stg Stg Day/Time Sat Sun Stg Time Date Neshaminy Creek Langhorne 9.0 8.4 Fri 2 am 4.7 3.1 9.0 7am 12/25 && LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493 $$ CMS
2 follow-up statements
227 WGUS81 KPHI 251738 FLSPHI Flood Statement National Weather Service Mount Holly NJ 1238 PM EST Fri Dec 25 2020 ...The Flood Warning is extended for the following rivers in Pennsylvania... Neshaminy Creek At Langhorne affecting Bucks County. For the Neshaminy Creek...including Langhorne...Minor flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov/phi. PAC017-260100- /O.EXT.KPHI.FL.W.0059.000000T0000Z-201226T0100Z/ /LNGP1.1.ER.201225T0739Z.201225T1545Z.201225T1900Z.NO/ 1238 PM EST Fri Dec 25 2020 ...The Flood Warning is now in effect until this evening... The Flood Warning continues for the Neshaminy Creek At Langhorne. * Until this evening. * At 12:15 PM EST Friday the stage was 11.2 feet. * Flood stage is 9.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 12:15 PM EST Friday was 11.4 feet. * Forecast...The river is expected to fall below flood stage this afternoon and continue falling to 2.8 feet Monday morning. * Impact at 7.0 feet...Water begins to overflow the lowest banks, on both sides of the creek, into adjacent wooded areas. Impact at 9.0 feet...Flooding begins on Bridle Drive in Middletown Township. Impact at 10.5 feet...Route 413, near Bridgeton Pike in Middletown Township, is subject to closures due to flooding. Impact at 12.0 feet...Widespread flooding occurs on Bridle Drive in Middletown Township. The road becomes impassable. * Flood History...This crest compares to a previous crest of 11.4 feet on 07/02/1987. && Stream Fld Observed Fcsts (1 pm) Crest Location Stg Stg Day/Time Sat Sun Stg Time Date Neshaminy Creek Langhorne 9.0 11.2 Fri 12 p 4.1 3.1 Crested && LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493 $$ Kruzdlo
502 WGUS81 KPHI 252218 FLSPHI Flood Statement National Weather Service Mount Holly NJ 518 PM EST Fri Dec 25 2020 ...The Flood Warning is cancelled for the following river in Pennsylvania... Neshaminy Creek At Langhorne affecting Bucks County. PAC017-252330- /O.CAN.KPHI.FL.W.0059.000000T0000Z-201225T2218Z/ /LNGP1.1.ER.201225T0739Z.201225T1545Z.201225T1900Z.NO/ 518 PM EST Fri Dec 25 2020 ...The Flood Warning for the Neshaminy Creek At Langhorne has been cancelled... The Flood Warning is cancelled for the Neshaminy Creek At Langhorne. * At 4:15 PM EST Friday the stage was 8.1 feet. * Flood stage is 9.0 feet. * Forecast...The river is expected to continue falling. && Stream Fld Observed Fcsts (7 pm) Crest Location Stg Stg Day/Time Sat Sun Stg Time Date Neshaminy Creek Langhorne 9.0 8.1 Fri 4 pm 3.7 3.0 Crested && LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493 $$ Iovino
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 8:47 PM EST | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Dec 24, 9:08 PM EST | Coastal Flood Advisory | PHI | Bucks, Philadelphia | 14 hr |
| Dec 24, 9:16 PM EST | Areal Flood Advisory | PHI | Bucks, Lehigh, Northampton | 3 hr |
| Dec 24, 9:38 PM EST | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 14 hr |
| Dec 24, 10:09 PM EST | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 6 hr |
| Dec 24, 10:21 PM EST | Areal Flood Warning | PHI | Bucks | 14 hr |
| Dec 24, 10:30 PM EST | River Flood Warning | PHI | Delaware | 10 hr |
| Dec 24, 11:10 PM EST | Areal Flood Advisory | PHI | Bucks | 4 hr |
| Dec 24, 11:26 PM EST | River Flood Warning | PHI | Chester | 13 hr |
| Dec 24, 11:48 PM EST | Areal Flood Warning | PHI | Bucks | 15 hr |
| Dec 24, 11:54 PM EST | Areal Flood Warning | PHI | Lehigh, Monroe, Northampton | 12 hr |
| Dec 25, 12:36 AM EST | River Flood Warning | PHI | Montgomery | 13 hr |
| Dec 25, 12:53 AM EST | Areal Flood Warning | PHI | Chester | 6 hr |
| Dec 25, 12:59 AM EST | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 21 hr |
| Dec 25, 1:56 AM EST | Areal Flood Warning | PHI | Bucks, Philadelphia | 7 hr |
| Dec 25, 3:29 AM EST | Areal Flood Warning | PHI | Berks | 6 hr |
| Dec 25, 3:33 AM EST | River Flood Warning | PHI | Chester, Delaware | 17 hr |
| Dec 25, 4:00 AM EST | River Flood Warning | PHI | Lehigh, Northampton | 16 hr |
| Dec 25, 4:31 AM EST | Areal Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 7 hr |
| Dec 25, 4:53 AM EST | River Flood Warning | PHI | Berks, Montgomery | 9 hr |
| Dec 25, 6:32 AM EST | River Flood Warning | PHI | Montgomery, Philadelphia | 7 hr |
| Dec 25, 7:28 AM EST | River Flood Warning | PHI | Monroe | 10 hr |
| Dec 25, 12:13 PM EST | Areal Flood Warning | PHI | Carbon, Monroe | 9 hr |
Nearby
River Flood Warnings in Pennsylvania, 2020Every river flood warning in 2020
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.