Alert archive / New York / Mesoscale Discussions in 2008
Mesoscale Discussion 1421
The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2008, 2:41 PM EDT for 44 counties in New York; 27 counties in Pennsylvania; 11 counties in Vermont. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2008, 2:41 PM EDT (18:41 UTC)
- Expired
- Jun 16, 2008, 3:45 PM EDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 82 counties
Albany County, NY, Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Clinton County, NY, Cortland County, NY, Delaware County, NY, Erie County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Genesee County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Warren County, NY, Washington County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bradford County, PA, Butler County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Crawford County, PA, Elk County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA, Lackawanna County, PA, Lawrence County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Potter County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Venango County, PA, Warren County, PA, Wayne County, PA, Wyoming County, PA, Addison County, VT, Bennington County, VT, Chittenden County, VT, Franklin County, VT, Grand Isle County, VT, Lamoille County, VT, Orleans County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT
The radar
The Binghamton radar (KBGM), 101 km from the middle of the area, began a volume at 18:43 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, 6.7 hours before the alert went out and 136 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
- 571 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 732 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 161841 SWOMCD SPC MCD 161841 VTZ000-MAZ000-NYZ000-PAZ000-OHZ000-161945- MESOSCALE DISCUSSION 1421 NWS STORM PREDICTION CENTER NORMAN OK 0141 PM CDT MON JUN 16 2008 AREAS AFFECTED...PA/NY INTO WESTERN NEW ENGLAND CONCERNING...SEVERE THUNDERSTORM WATCH 550... VALID 161841Z - 161945Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 550 CONTINUES. SCATTERED TO NUMEROUS SEVERE THUNDERSTORMS HAVE DEVELOPED ACROSS MUCH OF NY AND NORTHERN PA. 35-45 KNOT EFFECTIVE SHEAR VALUES HAVE HELPED STORMS MAINTAIN CELLULAR MODE...WITH SEVERAL STORMS SHOWING SUPERCELLULAR CHARACTERISTICS. LARGE HAIL WILL REMAIN LIKELY WITH STRONGER CELLS THROUGH THE AFTERNOON. A FEW CLUSTERS IN THIS REGION MAY ALSO ORGANIZE UPSCALE WITH AN INCREASING RISK OF DAMAGING WINDS. STORMS MAY ALSO BEGIN TO DEVELOP EASTWARD INTO MUCH OF VT DURING THE NEXT FEW HOURS. A LOCAL WATCH EXTENSION TO ADD THIS REGION IS UNDERWAY. ..HART.. 06/16/2008 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...BOX...BTV...ALY...BGM...BUF...CTP...PBZ...CLE... 43537730 44787409 44967209 42677279 41407539 40977797 40367993 40738069 41478058 42347907 43147859
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 10:19 AM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Bronx, Broome, Cattaraugus, Cayuga and 39 more | 2 hr |
| Jun 16, 11:28 AM EDT | Severe Thunderstorm Watch | SPC | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chautauqua and 42 more | 10 hr |
| Jun 16, 12:54 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 2 hr |
| Jun 16, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more | 10 hr |
| Jun 16, 5:53 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chemung and 25 more | 67 min |
| Jun 16, 6:18 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 87 min |
| Jun 15, 9:08 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Crawford, Lawrence, Mercer, Washington | 97 min |
Nearby
Mesoscale Discussions in New York, 2008Mesoscale Discussions in Pennsylvania, 2008Mesoscale Discussions in Vermont, 2008Every mesoscale discussion in 2008
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.