Alert archive / New Jersey / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 880

August 22, 20039 states

The Storm Prediction Center issued this severe thunderstorm watch at Aug 22, 2003, 1:15 PM EDT for 9 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Aug 22, 2003, 1:15 PM EDT (17:15 UTC)
Expired: Aug 22, 2003, 8:00 PM EDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 69 counties

Kent County, DE, New Castle County, DE, Berkshire County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Cheshire County, NH, Hillsborough County, NH, Rockingham County, NH, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Albany County, NY, Bronx County, NY, Columbia County, NY, Dutchess County, NY, Greene County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Schenectady County, NY, Suffolk County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA, Pike County, PA, Kent County, RI, Providence County, RI, Washington County, RI, Windham County, VT

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 17:16 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

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

Issued	Product	Office	Counties	Lasted
Aug 22, 1:57 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	63 min
Aug 22, 2:01 PM EDT	Severe Thunderstorm Warning	OKX	Orange	44 min
Aug 22, 2:15 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	60 min
Aug 22, 2:27 PM EDT	Flash Flood Warning	OKX	Orange	93 min
Aug 22, 3:08 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	22 min
Aug 22, 3:38 PM EDT	Severe Thunderstorm Warning	OKX	Orange	52 min
Aug 22, 4:03 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Greene	57 min
Aug 22, 4:08 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampshire, Worcester	52 min
Aug 22, 4:30 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	60 min
Aug 22, 4:39 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess	66 min
Aug 22, 4:59 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex	46 min
Aug 22, 5:16 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Worcester	44 min
Aug 22, 5:55 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk, Suffolk, Worcester	65 min
Aug 22, 6:30 PM EDT	Flash Flood Warning	BOX	Middlesex, Norfolk, Suffolk	2 hr
Aug 22, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	35 min
Aug 22, 6:56 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Norfolk, Plymouth	49 min
Aug 22, 7:19 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	41 min
Aug 22, 7:51 PM EDT	Severe Thunderstorm Warning	BOX	Kent	24 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.3 hours before the alert went out and 122 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: 728 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1150 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 12:32 PM EDT	Mesoscale Discussion	SPC		118 min
Aug 22, 4:10 PM EDT	Mesoscale Discussion	SPC		95 min
Aug 22, 7:22 PM EDT	Mesoscale Discussion	SPC		53 min
Aug 22, 3:27 PM EDT	Mesoscale Discussion	SPC	Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 1 more	3 hr
Aug 22, 5:42 PM EDT	Mesoscale Discussion	SPC	Charles, Montgomery, Prince George's, Saint Mary's	2 hr

Nearby

Severe Thunderstorm Watches in New Jersey, 2003 Severe Thunderstorm Watches in New York, 2003 Severe Thunderstorm Watches in Connecticut, 2003 Every severe thunderstorm watch in 2003

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.