Alert archive / New York / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 118, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 21, 1998, 11:47 PM EDT for Niagara County, New York. It was in force for 63 min. 1 report 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 21, 1998, 11:47 PM EDT (03:47 UTC)
- Expired
- Jul 22, 1998, 12:50 AM EDT
- In force
- 63 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
County Niagara County, NY
The radar
The Buffalo radar (KBUF), 25 km from the middle of the area, began a volume at 03:46 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 22, 12:12 AM EDT | Thunderstorm Wind | Lockport, 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
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 3.8 hours before the alert went out and 27 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1898 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
506 WUUS1 KBUF 220348 RRA SVRBUF NYC063-220450- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 1147 PM EDT TUE JUL 21 1998 THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NIAGARA COUNTY IN WESTERN NEW YORK * UNTIL 1250 AM EDT * AT 1145PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER LEWISTON...MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LEWISTON THROUGH 1155 PM LOCKPORT BETWEEN 1200 AM AND 1215 AM IF YOU ARE IN THESE AREAS...SEEK SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY DAMAGING WINDS...FREQUENT LIGHTNING AND HAIL. LOCALLY HEAVY RAINFALL MAY ALSO PRODUCE DRAINAGE FLOODING. TAN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 21, 11:33 PM EDT, 14 minutes before
NYZ010>013-019>021-220600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1133 PM EDT TUE JUL 21 1998 ...SEVERE THUNDERSTORM WATCH NUMBER 770 HAS EXPIRED... AT 1115PM...WEATHER RADAR INDICATED THAT THE THUNDERSTORM ACTIVITY OVER WESTERN NEW YORK HAD WEAKENED SOMEWHAT. THEREFORE...THE THUNDERSTORM WATCH WAS CANCELLED. ALTHOUGH THIS WATCH HAS BEEN CANCELLED...THE AIR IS STILL VERY HUMID AND CAPABLE OF PRODUCING ADDITIONAL THUNDERSTORM DEVELOPMENT. STAY TUNED FOR FURTHER STATEMENTS ON THIS SITUATION. TAN
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 1:19 AM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Oswego | 61 min |
Nearby
Severe Thunderstorm Warnings in New York, 1998Every severe thunderstorm warning in 1998
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.