Alert archive / New York / Mesoscale Discussions in 2011
Mesoscale Discussion 2317
The Storm Prediction Center issued this mesoscale discussion at Nov 14, 2011, 6:03 PM EST for 19 counties in New York; 15 counties in Pennsylvania. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Nov 14, 2011, 6:03 PM EST (23:03 UTC)
- Expired
- Nov 14, 2011, 8:00 PM EST
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 34 counties
Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Livingston County, NY, Madison County, NY, Onondaga County, NY, Ontario County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Armstrong County, PA, Bradford County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Forest County, PA, Jefferson County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA
The radar
The State College radar (KCCX), 111 km from the middle of the area, began a volume at 23:06 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.1 hours before the alert went out and 125 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
- 19 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1036 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 294 m²/s²
- 0-3 km storm-relative helicity
- 289 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Nov 14, 3:29 PM EST | Tornado Watch | SPC | Crawford, Erie, Lawrence, Mercer, Venango | 6 hr |
| Nov 14, 4:38 PM EST | Mesoscale Discussion | SPC | Beaver, Butler, Crawford, Erie, Lawrence, Mercer and 1 more | 2 hr |
Nearby
Mesoscale Discussions in New York, 2011Mesoscale Discussions in Pennsylvania, 2011Every mesoscale discussion in 2011
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.