Alert archive / Connecticut / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 19, NWS New York, NY

May 13, 2000Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at May 13, 2000, 10:10 PM EDT for Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 13, 2000, 10:10 PM EDT (02:10 UTC)
Expired
May 13, 2000, 10:45 PM EDT
In force
35 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Lower Connecticut River Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT

The radar

The Brookhaven radar (KOKX), 83 km from the middle of the area, began a volume at 02:09 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

Brookhaven, NY (KOKX), launched 00:00Z, 2.2 hours before the alert went out and 83 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 00:00Z on 2000-05-14Temperature 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 00:00Z on 2000-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 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
798 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KOKX 140213 COR
SVRNYC
CTC007-011-140245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION TO MOVEMENT...
NATIONAL WEATHER SERVICE NEW YORK NY
1010 PM EDT SAT MAY 13 2000

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES...

  IN SOUTHERN CONNECTICUT...
     NORTHERN MIDDLESEX...
     NORTHERN NEW LONDON...

* UNTIL 1045 PM EDT...

* AT 1010 PM EDT A SEVERE THUNDERSTORM WAS LOCATED 12 MILES SOUTHWEST
  OF EAST HAMPTON...MOVING EAST AT 30 MPH.

* BASED ON THIS MOVEMENT...THE SEVERE THUNDERSTORM SHOULD BE IN
  THE VICINITY OF...
  COLCHESTER...SALEM AROUND 1020 PM EDT...
  NORWICH AROUND 1025 PM EDT...
  PRESTON AROUND 1030 PM EDT...
  VOLUNTOWN AROUND 1035 PM EDT...

HAIL TO THE SIZE OF 1 INCH AND WIND GUSTS TO 60 MPH CAN BE EXPECTED 
IN THE WARNED AREA.

REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 58 MPH...LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4156 7265 4138 7258 4158 7156 4180 7164

...CORRECTED SPEED OF MOVEMENT...

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 13, 9:30 PM EDT, 40 minutes earlier.

Area forecast discussion, May 13, 9:30 PM EDT, 40 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
930 PM EDT SAT MAY 13 2000

SQUALL LN AHD OF CDFNT MOVG ACRS FCST AREA ATTM...WITH AN HOUR OR
TWO OF LGTR SHWRS BHD THE LN. WL CONT THE PCPN TIL ARND MIDN FM NYC
N AND W...AND TIL AFT MIDN TO THE E...PRETTY MUCH IN LN WITH CURRENT
FCSTS. FOR TMRW...WITH STG HI PRES BLDG OVR THE RGN...WL BE MORE
OPTIMISTIC AND CALL FOR MSTLY SUNNY SKIES. REST OF FCST PDS LK
FINE.

.OKX...NONE.

EY

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 10:22 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region38 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2000Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.