Alert archive / New Jersey / Mesoscale Discussions in 2017
Mesoscale Discussion 1094
The Storm Prediction Center issued this mesoscale discussion at Jun 19, 2017, 2:21 PM EDT for 6 states. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Jun 19, 2017, 2:21 PM EDT (18:21 UTC)
- Expired
- Jun 19, 2017, 4:15 PM EDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 44 counties
New Castle County, DE, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Harford County, MD, Kent County, MD, Prince George's County, MD, Queen Anne's County, MD, Talbot County, MD, Bergen County, NJ, Camden County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA, Arlington County, VA, City of Alexandria, VA, City of Falls Church, VA, City of Fredericksburg, VA, Fairfax County, VA, King George County, VA, Spotsylvania County, VA, Stafford County, VA
The radar
The Dover AFB radar (KDOX), 98 km from the middle of the area, began a volume at 18:24 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.4 hours before the alert went out and 158 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
- 448 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 11:13 AM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 9 hr |
| Jun 19, 12:14 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 10 more | 2 hr |
| Jun 19, 12:48 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Dorchester and 11 more | 8 hr |
| Jun 19, 10:45 AM EDT | Mesoscale Discussion | SPC | Hunterdon, Morris, Passaic, Sussex, Warren | 3 hr |
Nearby
Mesoscale Discussions in New Jersey, 2017Mesoscale Discussions in Maryland, 2017Mesoscale Discussions in Virginia, 2017Every mesoscale discussion in 2017
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.