Alert archive / New Jersey / Mesoscale Discussions in 2012
Mesoscale Discussion 1268
The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2012, 6:21 AM EDT for 12 counties in New Jersey; 10 counties in New York; Delaware County, Philadelphia County, Pennsylvania. It was in force for 24 min.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2012, 6:21 AM EDT (10:21 UTC)
- Expired
- Jun 25, 2012, 6:45 AM EDT
- In force
- 24 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
All 24 counties
Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Somerset County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY, Delaware County, PA, Philadelphia County, PA
The radar
The Brookhaven radar (KOKX), 75 km from the middle of the area, began a volume at 10:23 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 10.4 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1702 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 3:44 AM EDT | Mesoscale Discussion | SPC | 2 hr | |
| Jun 25, 6:39 AM EDT | Severe Thunderstorm Watch | SPC | Greater Bridgeport Planning Region, Capitol Planning Region, Northwest Hills Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region and 1 more | 7 hr |
| Jun 25, 3:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
Nearby
Mesoscale Discussions in New Jersey, 2012Mesoscale Discussions in New York, 2012Mesoscale Discussions in Connecticut, 2012Every mesoscale discussion in 2012
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.