Alert archive / Maryland / Mesoscale Discussions in 2016
Mesoscale Discussion 1574
The Storm Prediction Center issued this mesoscale discussion at Aug 21, 2016, 4:15 PM EDT for Kent County, New Castle County, Sussex County, Delaware; 11 counties in Maryland; 5 counties in New Jersey. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Aug 21, 2016, 4:15 PM EDT (20:15 UTC)
- Expired
- Aug 21, 2016, 5:45 PM EDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Anne Arundel County, MD, Calvert County, MD, Caroline County, MD, Dorchester County, MD, Kent County, MD, Queen Anne's County, MD, Saint Mary's County, MD, Somerset County, MD, Talbot County, MD, Wicomico County, MD, Worcester County, MD, Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 20 km from the middle of the area, began a volume at 20:17 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.3 hours before the alert went out and 114 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
- 110 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 859 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Aug 21, 1:31 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 2 more | 119 min |
Nearby
Mesoscale Discussions in Maryland, 2016Mesoscale Discussions in New Jersey, 2016Mesoscale Discussions in Delaware, 2016Every mesoscale discussion in 2016
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.