Alert archive / New York / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 69, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 18, 1997, 2:16 PM EDT for Suffolk County, New York. It was in force for 59 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 18, 1997, 2:16 PM EDT (18:16 UTC)
- Expired
- Jul 18, 1997, 3:15 PM EDT
- In force
- 59 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Suffolk County, NY
The radar
The Brookhaven radar (KOKX), 17 km from the middle of the area, began a volume at 18:17 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 2:35 PM EDT | Thunderstorm Wind 52 | Babylon, NY | |
| Jul 18, 2:50 PM EDT | Hail 1 | Babylon, NY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.3 hours before the alert went out and 17 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
- 537 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1397 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
941 WUUS1 KNYC 181821 RRA SVRNYC NYC059-081-103-181915- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 216 PM EDT FRI JUL 18 1997 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM EDT FOR THE PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST NEW YORK ...NASSAU COUNTY...QUEENS COUNTY...WESTERN SUFFOLK COUNTY AND THE ADJACENT COASTAL WATERS DOPPLER RADAR AT 218 PM SHOWS THUNDERSTORMS MOVING INTO THE AREA FROM THE NORTHWEST. ANY OF THESE STORMS CAN PRODUCE WIND GUSTS TO 60 MPH ALONG WITH HEAVY DOWNPOURS AND SMALL HAIL. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DONT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. &
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 2:16 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Queens | 59 min |
| Jul 18, 3:12 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 33 min |
| Jul 18, 7:34 PM EDT | Severe Thunderstorm Warning | OKX | Richmond | 41 min |
| Jul 18, 7:43 PM EDT | Severe Thunderstorm Warning | OKX | New York | 47 min |
| Jul 18, 7:43 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Queens | 47 min |
| Jul 18, 7:57 PM EDT | Severe Thunderstorm Warning | OKX | Richmond | 33 min |
Nearby
Severe Thunderstorm Warnings in New York, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.