Alert archive / New York / Mesoscale Discussions in 2011

Mesoscale Discussion 1046

June 1, 201118 counties in New York; Susquehanna County, Pennsylvania; 7 counties in Vermont

The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2011, 5:58 AM EDT for 18 counties in New York; Susquehanna County, Pennsylvania; 7 counties in Vermont. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2011, 5:58 AM EDT (09:58 UTC)
Expired
Jun 1, 2011, 8:00 AM EDT
In force
2 hr
Issued by
the Storm Prediction Center
All 26 counties

Albany County, NY, Broome County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Essex County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Montgomery County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Susquehanna County, PA, Addison County, VT, Bennington County, VT, Chittenden County, VT, Grand Isle County, VT, Lamoille County, VT, Rutland County, VT, Washington County, VT

The radar

The Albany radar (KENX), 85 km from the middle of the area, began a volume at 10:00 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

Albany, NY (KALY), launched 00:00Z, 10.0 hours before the alert went out and 76 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 00:00Z on 2011-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 610 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2011-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
610 J/kg
Mixed-layer CIN
-237 J/kg
Mixed-layer LCL
1749 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 9:38 AM EDTMesoscale DiscussionSPCAllegany, Broome, Cayuga, Chemung, Chenango, Clinton and 21 more37 min
Jun 1, 10:02 AM EDTSevere Thunderstorm WatchSPCAlbany, Broome, Chemung, Chenango, Clinton, Columbia and 23 more7 hr
Jun 1, 12:26 PM EDTMesoscale DiscussionSPCAlbany, Bronx, Columbia, Dutchess, Greene, Kings and 11 more64 min
Jun 1, 12:58 PM EDTTornado WatchSPCBronx, Kings, Nassau, New York, Orange, Putnam and 4 more7 hr
Jun 1, 4:17 PM EDTMesoscale DiscussionSPCDutchess, Putnam, Rockland, Westchester88 min
Jun 1, 7:09 PM EDTMesoscale DiscussionSPCBronx, Columbia, Dutchess, Kings, Nassau, New York and 8 more96 min

Nearby

Mesoscale Discussions in New York, 2011Mesoscale Discussions in Vermont, 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.