Alert archive / Connecticut / Tornado Warnings in 2001

Tornado Warning 2, NWS New York, NY

August 20, 2001Greater Bridgeport Planning Region, Connecticut

NWS New York, NY issued this tornado warning at Aug 20, 2001, 2:39 PM EDT for Greater Bridgeport Planning Region, Connecticut. It was in force for 36 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: Aug 20, 2001, 2:39 PM EDT (18:39 UTC)
Expired: Aug 20, 2001, 3:15 PM EDT
In force: 36 min
Issued by: NWS New York, NY
Area: Whole counties

County Greater Bridgeport Planning Region, CT

The radar

The Brookhaven radar (KOKX), 52 km from the middle of the area, began a volume at 18:40 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 12:00Z, 6.7 hours before the alert went out and 52 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: 414 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KOKX 201840
TOROKX
CTC001-201915-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
239 PM EDT MON AUG 20 2001

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL FAIRFIELD COUNTY IN SOUTHERN CONNECTICUT
  THIS INCLUDES THE CITY OF SHELTON

* UNTIL 315 PM EDT

* AT 234 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   POSSIBLE TORNADO OVER TRUMBULL...OR ABOUT 7 MILES SOUTHWEST OF 
SHELTON...  MOVING NORTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  OVER SHELTON AT 250 PM EDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

$$

LAT...LON 4131 7336 4117 7322 4122 7312 4132 7310
          4140 7317

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 1:55 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region	50 min
Aug 20, 2:19 PM EDT	Tornado Warning	OKX	Greater Bridgeport Planning Region	26 min
Aug 20, 2:48 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	42 min

Nearby

Tornado Warnings in Connecticut, 2001 Every tornado warning in 2001 Tornadoes 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.