Alert archive / New Jersey / Flash Flood Warnings in 1989
Flash Flood Warning 20, NWS New York, NY
NWS New York, NY issued this flash flood warning at Sep 20, 1989, 8:00 AM EDT for Hunterdon County, Morris County, Warren County, New Jersey. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Sep 20, 1989, 8:00 AM EDT (12:00 UTC)
- Expired
- Sep 20, 1989, 12:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Hunterdon County, NJ, Morris County, NJ, Warren County, NJ
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Atlantic City In, NJ (KACY), launched 12:00Z, 0.0 hours before the alert went out and 148 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
- 441 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 8:00 AM EDT | Flash Flood Warning | OKX | Sussex | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 1989Every flash flood warning in 1989
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.