Alert archive / Pennsylvania / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 304

May 18, 2000Sussex County, New Jersey; 16 counties in New York; 33 counties in Pennsylvania

The Storm Prediction Center issued this severe thunderstorm watch at May 18, 2000, 3:15 PM EDT for Sussex County, New Jersey; 16 counties in New York; 33 counties in Pennsylvania. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 18, 2000, 3:15 PM EDT (19:15 UTC)
Expired: May 18, 2000, 8:00 PM EDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 50 counties

Sussex County, NJ, Albany County, NY, Broome County, NY, Chemung County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Orange County, NY, Otsego County, NY, Putnam County, NY, Schenectady County, NY, Schoharie County, NY, Sullivan County, NY, Tioga County, NY, Ulster County, NY, Blair County, PA, Bradford County, PA, Cambria County, PA, Cameron County, PA, Carbon County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Elk County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lackawanna County, PA, Luzerne County, PA, Lycoming County, PA, Mifflin County, PA, Monroe County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Pike County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Wayne County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 108 km from the middle of the area, began a volume at 19:14 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.

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 18, 3:20 PM EDT	Tornado Warning	BGM	Chenango, Otsego	25 min
May 18, 3:34 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	71 min
May 18, 3:40 PM EDT	Tornado Warning	BGM	Otsego	35 min
May 18, 3:40 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk	50 min
May 18, 3:43 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	47 min
May 18, 3:45 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Delaware, Otsego	45 min
May 18, 3:45 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	45 min
May 18, 3:51 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	69 min
May 18, 3:54 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Schenectady	51 min
May 18, 3:55 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	35 min
May 18, 4:04 PM EDT	Severe Thunderstorm Warning	ALY	Schoharie	36 min
May 18, 4:09 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wyoming	36 min
May 18, 4:25 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Sullivan	50 min
May 18, 4:25 PM EDT	Flash Flood Warning	BGM	Bradford	2 hr
May 18, 4:25 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	50 min
May 18, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	45 min
May 18, 4:32 PM EDT	Severe Thunderstorm Warning	ALY	Albany	73 min
May 18, 4:39 PM EDT	Severe Thunderstorm Warning	ALY	Greene, Schoharie	51 min
May 18, 4:39 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	51 min
May 18, 4:39 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	51 min
May 18, 4:45 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	75 min
May 18, 4:45 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	60 min
May 18, 4:54 PM EDT	Severe Thunderstorm Warning	OKX	Orange	36 min
May 18, 5:15 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	60 min
May 18, 5:16 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	44 min
May 18, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	41 min
May 18, 5:21 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess	69 min
May 18, 5:28 PM EDT	Severe Thunderstorm Warning	OKX	Orange	32 min
May 18, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	24 min
May 18, 5:55 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Rockland, Westchester	65 min
May 18, 6:00 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	30 min
May 18, 6:01 PM EDT	Severe Thunderstorm Warning	OKX	Orange	29 min
May 18, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	39 min
May 18, 8:00 PM EDT	Severe Thunderstorm Warning	CTP	Elk	30 min

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.3 hours before the alert went out and 216 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: 239 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1133 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 349 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 6:00 PM EDT	Severe Thunderstorm Watch	SPC	Bergen, Essex, Hudson, Hunterdon, Morris, Passaic and 4 more	4 hr

Nearby

Severe Thunderstorm Watches in Pennsylvania, 2000 Severe Thunderstorm Watches in New York, 2000 Severe Thunderstorm Watches in New Jersey, 2000 Every severe thunderstorm watch in 2000

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; radar from the NEXRAD Level II archive.