Alert archive / New Jersey / Areal Flood Warnings in 2021
Areal Flood Warning 30, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Aug 23, 2021, 2:26 PM EDT for Sussex County, New Jersey. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2021, 2:26 PM EDT (18:26 UTC)
- Expired
- Aug 24, 2021, 4:30 AM EDT
- In force
- 14 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 119 km from the middle of the area, began a volume at 18:26 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.4 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 150 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
937 WGUS41 KPHI 231826 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 226 PM EDT Mon Aug 23 2021 NJC037-232230- /O.NEW.KPHI.FA.W.0030.210823T1826Z-210823T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 226 PM EDT Mon Aug 23 2021 The National Weather Service in Mount Holly has issued a * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 630 PM EDT. * At 226 PM EDT, gauge reports indicated water was elevated on the Pequest River. Flooding is ongoing or expected to begin shortly in the warned area. * For Pequest River at Huntsville: At 2:15pm the stage was 4.06 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ Kruzdlo
6 follow-up statements
993 WGUS41 KPHI 232200 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 600 PM EDT Mon Aug 23 2021 NJC037-240030- /O.EXT.KPHI.FA.W.0030.000000T0000Z-210824T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 600 PM EDT Mon Aug 23 2021 The National Weather Service in Mount Holly has extended the * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 830 PM EDT. * At 600 PM EDT, gauge reports indicated ongoing flooding on the Pequest River at Huntsville. * For Pequest River at Huntsville: At 5:15pm the stage was 4.19 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ Deal
761 WGUS41 KPHI 240020 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 820 PM EDT Mon Aug 23 2021 NJC037-240230- /O.EXT.KPHI.FA.W.0030.000000T0000Z-210824T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 820 PM EDT Mon Aug 23 2021 The National Weather Service in Mount Holly has extended the * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 1030 PM EDT. * At 820 PM EDT, gauge reports indicated water was elevated on the Pequest River. Flooding is ongoing in the warned area. * For Pequest River at Huntsville: At 8:00pm the stage was 4.23 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ Deal
425 WGUS41 KPHI 240158 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 958 PM EDT Mon Aug 23 2021 NJC037-240430- /O.EXT.KPHI.FA.W.0030.000000T0000Z-210824T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 958 PM EDT Mon Aug 23 2021 The National Weather Service in Mount Holly has extended the * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 1230 AM EDT. * At 958 PM EDT, gauge reports indicated water was elevated on the Pequest River. Flooding is ongoing in the warned area. * For Pequest River at Huntsville: At 9:45pm the stage was 4.23 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ Deal
127 WGUS41 KPHI 240418 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 1218 AM EDT Tue Aug 24 2021 NJC037-240630- /O.EXT.KPHI.FA.W.0030.000000T0000Z-210824T0630Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 1218 AM EDT Tue Aug 24 2021 The National Weather Service in Mount Holly has extended the * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 230 AM EDT. * At 1218 AM EDT, Water levels remain elevated on the Pequest River, and minor flooding is likely occurring... therefore the warning has been extended. * For Pequest River at Huntsville: At 12:00am the stage was 4.18 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ NC
347 WGUS41 KPHI 240612 FLWPHI BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Mount Holly NJ 212 AM EDT Tue Aug 24 2021 NJC037-240830- /O.EXT.KPHI.FA.W.0030.000000T0000Z-210824T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 212 AM EDT Tue Aug 24 2021 The National Weather Service in Mount Holly has extended the * Flood Warning for... South Central Sussex County in northwestern New Jersey... * Until 430 AM EDT. * At 212 AM EDT, Water levels remain elevated on the Pequest River, and minor flooding is likely occurring... therefore the warning has been extended. * For Pequest River at Huntsville: At 1:45am the stage was 4.14 feet. Flood Stage is 4 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ NC
599 WGUS81 KPHI 240824 FLSPHI Flood Statement National Weather Service Mount Holly NJ 424 AM EDT Tue Aug 24 2021 NJC037-240834- /O.EXP.KPHI.FA.W.0030.000000T0000Z-210824T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sussex NJ- 424 AM EDT Tue Aug 24 2021 ...FLOOD WARNING WILL EXPIRE AT 430 AM EDT EARLY THIS MORNING FOR SOUTH CENTRAL SUSSEX COUNTY... Flood waters have receded. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. LAT...LON 4101 7477 4099 7474 4094 7480 4096 7482 $$ 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, 11:58 AM EDT | River Flood Warning | PHI | Somerset | 15 hr |
| 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 | 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
Areal Flood Warnings in New Jersey, 2021Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.