Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 110, NWS Buffalo, NY

June 30, 1998Livingston County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 30, 1998, 6:00 PM EDT for Livingston County, New York. It was in force for 20 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: Jun 30, 1998, 6:00 PM EDT (22:00 UTC)
Expired: Jun 30, 1998, 6:20 PM EDT
In force: 20 min
Issued by: NWS Buffalo, NY
Area: Whole counties

County Livingston County, NY

The radar

The Buffalo radar (KBUF), 82 km from the middle of the area, began a volume at 22:04 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
Jun 30, 6:10 PM EDT	Hail 0.75	Hemlock, 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
Jun 30, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.0 hours before the alert went out and 79 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: 3 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 865 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBUF 302159 RRA
SVRBUF
NYC051-302220-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
600 PM EDT TUE JUN 30 1998

THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LIVINGSTON COUNTY IN WESTERN NEW YORK

* UNTIL 620 PM EDT

* AT 4:55 PM EDT...SPOTTERS INDICATED A SEVERE THUNDERSTORM NEAR
  CONESUS...MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE OVER...
  THE SOUTHERN PART OF HEMLOCK LAKE BY 6:10 PM EDT

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
WIrNDS...FREQUENT LIGHTNING AND HAIL. LOCALLY HEAVY RAINFALL
MAY ALSO PRODUCE DRAINAGE FLOODING.

RSH

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, Jun 30, 5:30 PM EDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NEW YORK
530 PM EDT TUE JUN 30 1998

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

0300 PM    BRIGHTON                  NY   FLOODING
06/30/98   MONROE                         STREET FLOODING

0330 PM    CANANDAIGUA               NY   WIND DAMAGE
06/30/98   ONTARIO                        TREES AND WIRES DOWN
                                          REPORTED BY SHERIFFS DEPT

0345 PM    SHORTSVILLE               NY   WIND DAMAGE
06/30/98   ONTARIO                        TREES AND WIRES DOWN
                                          REPORTED BY SHERIFFS
                                          DEPT.

0350 PM    10 NW GENEVA              NY   WIND DAMAGE
06/30/98   ONTARIO                        TREE FELL ON CAR

0400 PM    BUFFALO                   NY   1 INCH HAIL
06/30/98   ERIE                           SKYWARN SPOTTER

0408 PM    BUFFALO                   NY   .75 INCH HAIL
06/30/98   ERIE

0420 PM    HAMBURG                   NY   FLOODING
06/30/98   ERIE                           STREET FLOODING

0440 PM    EAST AURORA               NY   WIND DAMAGE
06/30/98   ERIE                           TREES DOWN REPORTED BY
                                          FIRE DISPATCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 6:46 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	49 min
Jun 30, 7:32 AM EDT	Severe Thunderstorm Warning	BUF	Orleans	33 min
Jun 30, 2:51 PM EDT	Flash Flood Warning	BUF	Monroe	2 hr
Jun 30, 2:59 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	61 min
Jun 30, 3:35 PM EDT	Severe Thunderstorm Warning	BUF	Erie	55 min
Jun 30, 4:26 PM EDT	Severe Thunderstorm Warning	BUF	Erie	44 min
Jun 30, 4:51 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	64 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.