Alert archive / New Jersey / Mesoscale Discussions in 2003

Mesoscale Discussion 2230

August 22, 20039 states

The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2003, 7:22 PM EDT for 9 states. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Aug 22, 2003, 7:22 PM EDT (23:22 UTC)
Expired
Aug 22, 2003, 8:15 PM EDT
In force
53 min
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, 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, Bennington County, VT, Windham County, VT

The radar

The Brookhaven radar (KOKX), 75 km from the middle of the area, began a volume at 23:22 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.4 hours before the alert went out and 75 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2003-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 728 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2003-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 22, 12:32 PM EDTMesoscale DiscussionSPC118 min
Aug 22, 1:15 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 22, 4:10 PM EDTMesoscale DiscussionSPC95 min
Aug 22, 3:27 PM EDTMesoscale DiscussionSPCAllegany, Baltimore, Carroll, Frederick, Garrett, Harford and 1 more3 hr
Aug 22, 5:42 PM EDTMesoscale DiscussionSPCCharles, Montgomery, Prince George's, Saint Mary's2 hr

Nearby

Mesoscale Discussions in New Jersey, 2003Mesoscale Discussions in New York, 2003Mesoscale Discussions in Connecticut, 2003Every mesoscale discussion 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.