Alert archive / New York / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 398

June 11, 20014 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 11, 2001, 5:45 PM EDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 11, 2001, 5:45 PM EDT (21:45 UTC)
Expired
Jun 11, 2001, 11:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
All 26 counties

Berkshire County, MA, Bergen County, NJ, Essex County, NJ, Hunterdon County, NJ, Morris County, NJ, Passaic County, NJ, Sussex County, NJ, Warren County, NJ, Albany County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Orange County, NY, Putnam County, NY, Rensselaer County, NY, Rockland County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Lackawanna County, PA, Monroe County, PA, Northampton County, PA, Pike County, PA, Susquehanna County, PA, Wayne County, PA

The radar

The Albany radar (KENX), 109 km from the middle of the area, began a volume at 21:47 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.

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 11, 6:01 PM EDTSevere Thunderstorm WarningBGMSusquehanna59 min
Jun 11, 6:25 PM EDTSevere Thunderstorm WarningBGMLackawanna, Wayne65 min
Jun 11, 7:55 PM EDTSevere Thunderstorm WarningBGMPike, Wayne65 min
Jun 11, 9:00 PM EDTSevere Thunderstorm WarningPHIMonroe45 min
Jun 11, 9:22 PM EDTSevere Thunderstorm WarningPHIWarren38 min
Jun 11, 10:39 PM EDTSevere Thunderstorm WarningOKXEssex, Hudson36 min
Jun 11, 10:52 PM EDTSevere Thunderstorm WarningOKXBergen23 min

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.8 hours before the alert went out and 129 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 12:00Z on 2001-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2001-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1635 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Severe Thunderstorm Watches in New York, 2001Severe Thunderstorm Watches in New Jersey, 2001Severe Thunderstorm Watches in Pennsylvania, 2001Every severe thunderstorm watch in 2001

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.