Alert archive / New Jersey / River Flood Warnings in 2020

River Flood Warning 49, NWS Philadelphia/Mount Holly

December 1, 2020Morris County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 1, 2020, 12:26 PM EST for Morris County, New Jersey. It took effect at Dec 1, 2020, 1:00 PM EST. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Dec 1, 2020, 12:26 PM EST (17:26 UTC)
In effect from: Dec 1, 2020, 1:00 PM EST
Expired: Dec 1, 2020, 7:00 PM EST
In force: 6 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County Morris County, NJ

The radar

The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 17:26 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 Rockaway River at Boonton below reservoir (BONN4). The gauge peaked at 5.00 ft at Dec 1, 2020, 1:00 PM EST.

Action stage: 4.5 ft
Minor stage: 5 ft
Moderate stage: 7 ft
Major stage: 8 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01381000, 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.

854 
WGUS41 KPHI 011726
FLWPHI

BULLETIN - EAS ACTIVATION REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1226 PM EST Tue Dec 1 2020

...The National Weather Service in Mount Holly NJ has issued a Flood 
Warning for the following rivers in New Jersey...

  Rockaway River At Boonton Below Resvr affecting Morris County.

For the Rockaway River...including Boonton Below Resvr...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.


NJC027-020000-
/O.NEW.KPHI.FL.W.0049.201201T1800Z-201202T0000Z/
/BONN4.1.ER.201201T1800Z.201201T1800Z.201201T1800Z.NO/
1226 PM EST Tue Dec 1 2020

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Rockaway River At Boonton Below Resvr.
* Until this evening.
* At 12:00 PM EST Tuesday the stage was 5.0 feet.
* Flood stage is 5.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected crest near 5.0 feet this 
  afternoon.
* Impact at 6.0 feet...Flooding occurs on Vail Road in Montville. 
  The Road heading into Parsippany is subject to closures.
* Flood History...This crest compares to a previous crest of 5.3 
  feet on 03/22/2003.

&&


Stream          Fld   Observed        Fcsts (1 pm)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Rockaway River
Boonton Below R 5.0   5.0  Tue 12 p   3.9  3.5        Nearing crest





&&

LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436

$$

Kruzdlo

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 7:48 PM EST	Coastal Flood Statement	PHI	Ocean	8 hr
Dec 1, 6:31 AM EST	River Flood Warning	PHI	Somerset	20 hr
Dec 1, 7:18 AM EST	River Flood Warning	PHI	Middlesex, Somerset	3 hr
Dec 1, 8:49 AM EST	Coastal Flood Statement	PHI	Ocean	7 hr
Dec 1, 1:37 PM EST	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	2 hr

Nearby

River Flood Warnings in New Jersey, 2020 Every 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.