Alert archive / New York / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 478

June 27, 200245 counties in New York

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 2002, 1:30 PM EDT for 45 counties in New York. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 27, 2002, 1:30 PM EDT (17:30 UTC)
Expired: Jun 27, 2002, 8:00 PM EDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 45 counties

Albany County, NY, Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Columbia County, NY, Cortland County, NY, Delaware County, NY, Dutchess County, NY, Erie County, NY, Fulton County, NY, Genesee County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Montgomery County, NY, Niagara County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY

Warnings issued inside it

25 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 27, 1:37 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	53 min
Jun 27, 2:01 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	59 min
Jun 27, 2:03 PM EDT	Severe Thunderstorm Warning	BGM	Onondaga	57 min
Jun 27, 2:04 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	56 min
Jun 27, 2:07 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga	23 min
Jun 27, 2:15 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	30 min
Jun 27, 2:26 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	64 min
Jun 27, 2:32 PM EDT	Severe Thunderstorm Warning	BGM	Madison, Oneida	43 min
Jun 27, 2:51 PM EDT	Severe Thunderstorm Warning	ALY	Washington	24 min
Jun 27, 2:55 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	65 min
Jun 27, 2:56 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	34 min
Jun 27, 3:06 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga	54 min
Jun 27, 3:30 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	60 min
Jun 27, 3:40 PM EDT	Severe Thunderstorm Warning	BGM	Chemung	50 min
Jun 27, 3:44 PM EDT	Severe Thunderstorm Warning	ALY	Herkimer	61 min
Jun 27, 4:01 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery	59 min
Jun 27, 4:17 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga	58 min
Jun 27, 4:21 PM EDT	Severe Thunderstorm Warning	BGM	Tioga	24 min
Jun 27, 4:29 PM EDT	Flash Flood Warning	BGM	Chemung, Steuben	3 hr
Jun 27, 4:35 PM EDT	Severe Thunderstorm Warning	BGM	Oneida	25 min
Jun 27, 4:38 PM EDT	Flash Flood Warning	ALY	Fulton, Herkimer, Saratoga	5 hr
Jun 27, 4:46 PM EDT	Severe Thunderstorm Warning	BGM	Broome	44 min
Jun 27, 5:34 PM EDT	Severe Thunderstorm Warning	ALY	Washington	56 min
Jun 27, 5:59 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Schenectady	61 min
Jun 27, 7:15 PM EDT	Severe Thunderstorm Warning	ALY	Albany	30 min

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.5 hours before the alert went out and 151 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: 551 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 27, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more	6 hr

Nearby

Severe Thunderstorm Watches in New York, 2002 Every severe thunderstorm watch in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.