Alert archive / Connecticut / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 307

May 18, 20004 states

The Storm Prediction Center issued this severe thunderstorm watch at May 18, 2000, 5:00 PM EDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 18, 2000, 5:00 PM EDT (21:00 UTC)
Expired
May 18, 2000, 10:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH, Kent County, RI, Providence County, RI, Washington County, RI, Bennington County, VT, Windham County, VT

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 18, 5:11 PM EDTSevere Thunderstorm WarningALYBerkshire79 min
May 18, 5:20 PM EDTSevere Thunderstorm WarningBOXFranklin55 min
May 18, 5:49 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire56 min
May 18, 6:14 PM EDTSevere Thunderstorm WarningBOXFranklin, Worcester46 min

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.0 hours before the alert went out and 135 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, Brookhaven, NY at 12:00Z on 2000-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 2000-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 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
977 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
245 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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 6:00 PM EDTSevere Thunderstorm WatchSPC4 hr

Nearby

Severe Thunderstorm Watches in Connecticut, 2000Severe Thunderstorm Watches in Massachusetts, 2000Severe Thunderstorm Watches in Rhode Island, 2000Every severe thunderstorm watch in 2000

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.