Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 143, NWS Buffalo, NY

August 24, 1998Jefferson County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 24, 1998, 4:20 PM EDT for Jefferson County, New York. It was in force for 60 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: Aug 24, 1998, 4:20 PM EDT (20:20 UTC)
Expired: Aug 24, 1998, 5:20 PM EDT
In force: 60 min
Issued by: NWS Buffalo, NY
Area: Whole counties

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 40 km from the middle of the area, began a volume at 20:18 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
Aug 24, 4:30 PM EDT	Hail 0.75	Adams Center, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 24, 3:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.3 hours before the alert went out and 231 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1304 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

726 
WUUS1 KBUF 242021 RRA
SVRBUF
NYC045-NYZ526-527-242120-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
420 PM EDT MON AUG 24 1998

THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY INCLUDING ADJACENT COASTAL WATERS IN CENTRAL NEW
  YORK

* UNTIL 520 PM EDT

* AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS 10 MILES WEST OF HENDERSON HARBOR...MOVING
  EAST AT 35 MPH...AND NEAR WELLSLEY ISLAND...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  ADAMS BY 445 PM
  WORTH BY 455 PM
  CLAYTON BY 430 PM
  THERESA BY 445 PM

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.

MCLAUGHLIN

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

Local storm report, Aug 24, 10:29 AM EDT, 5 hours 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NEW YORK
1029 AM EDT MON AUG 24 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0935 AM    FREWSBURG                 NY   WIND DAMAGE
08/24/98   CHAUTAUQUA                     POWER LINES DOWN

0939 AM    CLYMER                    NY   WIND DAMAGE
08/24/98   CHAUTAUQUA                     TREES DOWN

1018 AM    RANDOLPH                  NY   WIND DAMAGE
08/24/98   CATTARAUGUS                    TREES AND WIRES DOWN

Local storm report, Aug 24, 12:09 PM EDT, 4 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NEW YORK
1209 PM EDT MON AUG 24 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1052 AM    BOLIVAR                   NY   .75 INCH HAIL
08/24/98   ALLEGANY

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 23, 8:10 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	60 min
Aug 23, 9:45 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	60 min
Aug 24, 5:37 AM EDT	Severe Thunderstorm Warning	BUF	Monroe	63 min
Aug 24, 6:58 AM EDT	Severe Thunderstorm Warning	BUF	Ontario	67 min
Aug 24, 9:17 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	78 min
Aug 24, 10:15 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	65 min
Aug 24, 10:42 AM EDT	Severe Thunderstorm Warning	BUF	Allegany	63 min
Aug 24, 11:52 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson	93 min
Aug 24, 5:44 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	61 min
Aug 24, 6:44 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	61 min
Aug 24, 6:52 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	63 min

Nearby

Severe Thunderstorm Warnings in New York, 1998 Every 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.