Alert archive / Connecticut / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 15, NWS New York, NY

June 11, 2001Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Jun 11, 2001, 11:06 PM EDT for Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 39 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: Jun 11, 2001, 11:06 PM EDT (03:06 UTC)
Expired: Jun 11, 2001, 11:45 PM EDT
In force: 39 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 03:05 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, 3.1 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 703 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1131 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KOKX 120306
SVROKX
CTC007-011-120345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1106 PM EDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NEW LONDON COUNTY IN SOUTHERN CONNECTICUT
  SOUTHEASTERN MIDDLESEX COUNTY IN SOUTHERN CONNECTICUT

* UNTIL 1145 PM EDT

* AT 1100 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 7 MILES NORTHWEST OF SALEM TO
  KILLINGWORTH...OR FROM 7 MILES NORTHWEST OF SALEM TO 6 MILES
  NORTHEAST OF GUILFORD...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  OVER OLD SAYBROOK...NORTH LYME...SALEM AT 1115 PM EDT
  OVER OLD LYME AT 1120 PM EDT
  OVER NORWICH AT 1125 PM EDT
  OVER GALES FERRY...LEDYARD CENTER AT 1130 PM EDT
  OVER NEW LONDON...WATERFORD...3 MILES SOUTH OF PRESTON AT 1135 PM
  EDT

$$

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 4145 7264 4126 7259 4131 7183 4166 7179
          4154 7233

SDR

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 Jun 11, 10:03 PM EDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jun 11, 10:03 PM EDT, 1 hour 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
1003 PM EDT MON JUN 11 2001

VERY BUSY NIGHT BUT MOST STORMS JUST FALLING SHORT OF SEVERE
CRITERIA. SFC LOW MOVING INTO NWRN CT. AXIS OF MOST UNSTABLE AIR
STILL EXTENDS ACROSS MOST OF CWA. WILL HAVE TO CONTEND WITH TSTMS
FOR ANOTHER COUPLE OF HOURS OR SO. WILL TRY TO GET MARINE OUT ASAP.

ANY OTHER PRODUCTS WILL HAVE TO WAIT FOR NOW.

MARINE: WINDS UP NOW AHEAD OF FRONT BUT SHOULD DROP SOMEWHAT
OVERNIGHT. NO FLAGS.

.OKX...
CT...SVR TSTM WATCH CTZ005>007-009>011 TIL 03Z.
NJ...SVR TSTM WATCH NJZ002>005 TIL 03Z.
NY...SVR TSTM WATCH NYZ067>071 TIL 03Z.
MARINE...NONE.

PW

In the hours before

Local storm report, Jun 11, 9:10 PM EDT, 1 hour 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
910 PM EDT MON JUN 11 2001

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0820 PM    ELIZABETH                 NJ
06/11/01   UNION                          LIGHTNING STRUCK HOUSE AND
                                          DAMAGED CHIMNEY...REPORTED
                                          BY SPOTTER

0837 PM    NAUGATUCK                 CT   WIND DAMAGE
06/11/01   NEW HAVEN                      TREES AND POWER LINES
                                          DOWNED...REPORT BY LOCAL
                                          PD.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 8:30 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	45 min
Jun 11, 10:30 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region	45 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2001 Every severe thunderstorm warning 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.