Alert archive / New Jersey / River Flood Warnings in 2021
River Flood Warning 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Aug 23, 2021, 11:58 AM EDT for Somerset County, New Jersey. It was in force for 15 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2021, 11:58 AM EDT (15:58 UTC)
- Expired
- Aug 24, 2021, 3:22 AM EDT
- In force
- 15 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Moderate
County Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 16:00 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 North Branch Raritan River near Raritan (RRTN4). The gauge peaked at 11.84 ft at Aug 23, 2021, 1:00 PM EDT.
- Action stage
- 8 ft
- Minor stage
- 10 ft
- Moderate stage
- 12 ft
- Major stage
- 15 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01400000, 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.
993 WGUS41 KPHI 231558 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 1158 AM EDT Mon Aug 23 2021 ...The National Weather Service in Mount Holly NJ has issued a Flood Warning for the following rivers in New Jersey... North Branch Raritan River At Raritan affecting Somerset County. For the Raritan River...including Raritan...Moderate flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/phi. NJC035-240400- /O.NEW.KPHI.FL.W.0023.210823T1558Z-210824T1500Z/ /RRTN4.2.ER.210823T1412Z.210824T0000Z.210824T0900Z.NO/ 1158 AM EDT Mon Aug 23 2021 The National Weather Service in Mount Holly has issued a * Flood Warning for the North Branch Raritan River At Raritan. * From this morning to Tuesday morning. * At 11:45 AM EDT Monday the stage was 11.3 feet. * Flood stage is 10.0 feet. * Minor flooding is occurring and moderate flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 11:45 AM EDT Monday was 11.3 feet. * Forecast...The river is expected to rise to a crest of 12.2 feet this evening. It will then fall below flood stage late tonight. * Impact...At 7.0 feet, Minor flooding begins upstream on Black River Road. * Impact...At 10.0 feet, Flooding occurs along Old York Road and in North Branch Village. * Impact...At 13.0 feet, The first evacuations begin in Village of North Branch at Route 28 and Vaanderveer Avenue. * Flood History...This crest compares to a previous crest of 12.2 feet on 09/21/1938. && Fld Observed Forecasts (2 pm EDT) Location Stg Stg Day/Time Tue Wed Thu North Branch Raritan River Raritan 10.0 11.3 Mon 11 am ED 5.7 3.7 MSG && LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471 $$ Kruzdlo
3 follow-up statements
561 WGUS81 KPHI 232006 FLSPHI Flood Statement National Weather Service Mount Holly NJ 406 PM EDT Mon Aug 23 2021 ...The Flood Warning continues for the following rivers in New Jersey... North Branch Raritan River At Raritan affecting Somerset County. For the Raritan River...including Raritan...Minor flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/phi. NJC035-240815- /O.CON.KPHI.FL.W.0023.000000T0000Z-210824T1500Z/ /RRTN4.1.ER.210823T1412Z.210823T1730Z.210824T0000Z.NO/ 406 PM EDT Mon Aug 23 2021 ...The Flood Warning remains in effect... The Flood Warning continues for the North Branch Raritan River At Raritan. * Until Tuesday morning. * At 4:00 PM EDT Monday the stage was 10.9 feet. * Flood stage is 10.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 4:00 PM EDT Monday was 11.7 feet. * Forecast...The river is expected to fall below flood stage this evening and continue falling to 3.4 feet early Thursday afternoon. * Impact...At 7.0 feet, Minor flooding begins upstream on Black River Road. * Impact...At 10.0 feet, Flooding occurs along Old York Road and in North Branch Village. * Flood History...This crest compares to a previous crest of 10.8 feet on 04/05/1984. && Fld Observed Forecasts (2 pm EDT) Location Stg Stg Day/Time Tue Wed Thu North Branch Raritan River Raritan 10.0 10.9 Mon 4 pm EDT 4.7 3.5 3.4 && LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471 $$ Kruzdlo
181 WGUS81 KPHI 232146 FLSPHI Flood Statement National Weather Service Mount Holly NJ 546 PM EDT Mon Aug 23 2021 ...The Flood Warning continues for the following rivers in New Jersey... North Branch Raritan River At Raritan affecting Somerset County. For the Raritan River...including Stanton, Raritan, Manville, Bound Brook...Moderate flooding is forecast. Gage Reports indicate that flooding is still on going on the North Branch Raritan River at South Branch. For North Branch Raritan River at South Branch: At 5:30pm the stage was 9.9 feet. Flood Stage is 8 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/phi. NJC035-241000- /O.CON.KPHI.FL.W.0023.000000T0000Z-210824T1500Z/ /RRTN4.1.ER.210823T1412Z.210823T1730Z.210824T0000Z.NO/ 546 PM EDT Mon Aug 23 2021 ...The Flood Warning remains in effect... The Flood Warning continues for the North Branch Raritan River At Raritan. * Until Tuesday morning. * At 5:15 PM EDT Monday the stage was 10.3 feet. * Flood stage is 10.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Recent Activity...The maximum river stage in the 24 hours ending at 5:15 PM EDT Monday was 11.7 feet. * Forecast...The river is expected to fall below flood stage this evening and continue falling to 3.4 feet early Thursday afternoon. * Impact...At 7.0 feet, Minor flooding begins upstream on Black River Road. * Impact...At 10.0 feet, Flooding occurs along Old York Road and in North Branch Village. * Flood History...This crest compares to a previous crest of 10.3 feet on 04/03/2005. && Fld Observed Forecasts (8 pm EDT) Location Stg Stg Day/Time Tue Wed Thu North Branch Raritan River Raritan 10.0 10.3 Mon 5 pm EDT 4.2 3.5 MSG && LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471 $$ Deal
174 WGUS81 KPHI 240722 FLSPHI Flood Statement National Weather Service Mount Holly NJ 322 AM EDT Tue Aug 24 2021 ...The Flood Warning is cancelled for the following rivers in New Jersey... North Branch Raritan River At Raritan affecting Somerset County. NJC035-240830- /O.CAN.KPHI.FL.W.0023.000000T0000Z-210824T0722Z/ /RRTN4.1.ER.210823T1412Z.210823T1730Z.210824T0000Z.NO/ 322 AM EDT Tue Aug 24 2021 ...The Flood Warning for the North Branch Raritan River At Raritan has been cancelled... The Flood Warning is cancelled for the North Branch Raritan River At Raritan. * The current stage as of 215AM was 3.98 Ft * Flood stage is 10.0 feet. * Recent Activity...The maximum river stage in the 24 hours ending at 5:15 PM EDT Monday was 11.7 feet. * Forecast...The North Branch of the Raritan has dropped below flood stage and is expected to remain below flood stage through the period. && Fld Observed Forecasts (2 am EDT) Location Stg Stg Day/Time Wed Thu Fri North Branch Raritan River Raritan 10.0 10.3 Mon 5 pm EDT 3.8 3.4 MSG && LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471 $$ NC
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 8:11 PM EDT | Areal Flood Advisory | PHI | Warren | 6 hr |
| Aug 22, 8:47 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 6 hr |
| Aug 22, 11:27 PM EDT | Areal Flood Warning | PHI | Middlesex | 29 hr |
| Aug 23, 2:09 AM EDT | River Flood Warning | PHI | Morris, Passaic | 17 hr |
| Aug 23, 3:25 AM EDT | Areal Flood Warning | PHI | Morris | 8 hr |
| Aug 23, 4:10 AM EDT | River Flood Warning | PHI | Morris | 41 hr |
| Aug 23, 5:07 AM EDT | Areal Flood Warning | PHI | Warren | 21 hr |
| Aug 23, 5:22 AM EDT | Areal Flood Warning | PHI | Somerset | 9 hr |
| Aug 23, 5:44 AM EDT | Areal Flood Warning | PHI | Hunterdon | 7 hr |
| Aug 23, 7:20 AM EDT | River Flood Warning | PHI | Hunterdon, Somerset | 7 hr |
| Aug 23, 7:47 AM EDT | River Flood Warning | PHI | Morris, Passaic | 13 hr |
| Aug 23, 8:36 AM EDT | Areal Flood Warning | PHI | Somerset | 9 hr |
| Aug 23, 8:42 AM EDT | River Flood Warning | PHI | Middlesex, Somerset | 21 hr |
| Aug 23, 11:22 AM EDT | River Flood Warning | PHI | Middlesex, Somerset | 16 hr |
| Aug 23, 11:32 AM EDT | River Flood Warning | PHI | Essex, Morris, Passaic | 5 days |
| Aug 23, 12:19 PM EDT | River Flood Warning | PHI | Burlington | 33 hr |
| Aug 23, 12:51 PM EDT | Coastal Flood Statement | PHI | Ocean | 3 hr |
| Aug 23, 2:26 PM EDT | Areal Flood Warning | PHI | Sussex | 14 hr |
| Aug 23, 2:26 PM EDT | Special Weather Statement | PHI | Ocean | 49 min |
| Aug 23, 3:12 PM EDT | Special Weather Statement | PHI | Ocean | 33 min |
| Aug 23, 3:15 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 45 min |
| Aug 23, 3:18 PM EDT | Special Marine Warning | PHI | 57 min | |
| Aug 23, 3:38 PM EDT | River Flood Warning | PHI | Essex, Morris, Passaic | 48 hr |
| Aug 23, 4:47 PM EDT | Special Weather Statement | PHI | Atlantic | 28 min |
| Aug 23, 4:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Aug 23, 5:13 PM EDT | Special Weather Statement | PHI | Camden | 32 min |
| Aug 23, 5:39 PM EDT | Special Marine Warning | PHI | 33 min | |
| Aug 23, 6:46 PM EDT | Special Marine Warning | PHI | 64 min |
Nearby
River Flood Warnings in New Jersey, 2021Every river flood warning in 2021
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.