Alert archive / New York / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 9, NWS Buffalo, NY

June 19, 2001Niagara County, Orleans County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 19, 2001, 8:58 PM EDT for Niagara County, Orleans County, New York. It was in force for 62 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 19, 2001, 8:58 PM EDT (00:58 UTC)
Expired: Jun 19, 2001, 10:00 PM EDT
In force: 62 min
Issued by: NWS Buffalo, NY
Area: Whole counties

Counties Niagara County, NY, Orleans County, NY

The radar

The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 00:59 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 19, 9:51 PM EDT	Thunderstorm Wind 55 E	Wilson, 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, 1.0 hours before the alert went out and 38 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: 348 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 2025 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 200100
SVRBUF

NYC063-073-200200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
858 PM EDT TUE JUN 19 2001

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NIAGARA COUNTY IN WESTERN NEW YORK
  ORLEANS COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE CITIES OF...NEWFANE...ALBION...MEDINA

* UNTIL 1000 PM EDT

* AT 854 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES NORTHEAST OF YOUNGSTOWN...OR ABOUT 15
  MILES NORTHWEST OF LOCKPORT...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEWFANE AT 910 PM EDT
  9 MILES NORTH OF MEDINA AT 935 PM EDT
  NEAR WATERPORT AT 945 PM EDT
  
THIS IS A DANGEROUS STORM WITH DAMAGING WINDS AND LARGE HAIL. STAY
INDOORS AWAY FROM WINDOWS.

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. STAY INDOORS AWAY
FROM WINDOWS.

PA5CE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 2:45 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	60 min
Jun 20, 6:44 AM EDT	Severe Thunderstorm Warning	BUF	Monroe	31 min

Nearby

Severe Thunderstorm Warnings in New York, 2001 Every severe thunderstorm warning in 2001

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.