Alert archive / Connecticut / Tornado Warnings in 2011
Tornado Warning 5, NWS New York, NY
NWS New York, NY issued this tornado warning at Jul 29, 2011, 6:26 PM EDT for Greater Bridgeport Planning Region, Connecticut; Westchester County, New York. It was in force for 34 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 29, 2011, 6:26 PM EDT (22:26 UTC)
- Expired
- Jul 29, 2011, 7:00 PM EDT
- In force
- 34 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
Counties Greater Bridgeport Planning Region, CT, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 69 km from the middle of the area, began a volume at 22:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 29, 6:29 PM EDT | TSTM WND DMG | White Plains, NY | TREE DOWN IN WHITE PLAINS... TIME ESTIMATED FROM RADAR. |
| Jul 29, 6:30 PM EDT | TSTM WND DMG | Greenwich, CT | LARGE TREE DOWN IN CENTRAL GREENWICH. |
| Jul 29, 6:37 PM EDT | TSTM WND DMG | Greenwich, CT | 10 ROADS BLOCKED BY FALLEN TREES IN GREENWICH. ONE HOME SIGNIFICANTLY DAMAGED BY FALLEN TREE ON KNOLLWOOD DRIVE. TIME ESTIMATED BY RADAR. |
| Jul 29, 6:39 PM EDT | MARINE TSTM WIND 45 | Greenwich, CT | 45 MPH WIND GUST AT GREENWICH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 29, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 29, 5:03 PM EDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.4 hours before the alert went out and 69 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.
- Mixed-layer CAPE
- 81 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
738
WFUS51 KOKX 292226
TOROKX
CTC001-NYC119-292300-
/O.NEW.KOKX.TO.W.0005.110729T2226Z-110729T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
626 PM EDT FRI JUL 29 2011
THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A
* TORNADO WARNING FOR...
WESTCHESTER COUNTY IN SOUTHEAST NEW YORK...
SOUTHERN FAIRFIELD COUNTY IN SOUTHERN CONNECTICUT...
* UNTIL 700 PM EDT...
* AT 621 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
HAWTHORNE...OR NEAR TARRYTOWN...MOVING SOUTHEAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE
PLAINS...SCARSDALE...HARRISON...PORT CHESTER...RYE...STAMFORD AND
DARIEN
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.
&&
LAT...LON 4104 7389 4111 7390 4119 7379 4105 7346
4104 7347 4104 7349 4102 7352 4102 7354
4100 7357 4101 7359 4100 7363 4095 7366
4094 7370 4092 7371 4091 7374
TIME...MOT...LOC 2224Z 318DEG 27KT 4106 7379
$$
JM3 follow-up statements
338
WWUS51 KOKX 292236
SVSOKX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
636 PM EDT FRI JUL 29 2011
CTC001-NYC119-292300-
/O.CON.KOKX.TO.W.0005.000000T0000Z-110729T2300Z/
FAIRFIELD CT-WESTCHESTER NY-
636 PM EDT FRI JUL 29 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR
WESTCHESTER AND SOUTHERN FAIRFIELD COUNTIES...
AT 629 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR WHITE PLAINS...MOVING SOUTHEAST AT 30 MPH. THE STORM HAS CAUSED
EXTENSIVE DAMAGE IN CENTRAL WESTCHESTER COUNTY WITH NUMEROUS TREES
AND WIRES DOWN.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORT
CHESTER...LARCHMONT...MAMARONECK...RYE AND STAMFORD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.
&&
LAT...LON 4101 7385 4110 7380 4115 7371 4111 7362
4102 7354 4100 7357 4101 7359 4100 7363
4099 7363 4099 7365 4095 7366 4094 7370
4092 7371 4091 7374
TIME...MOT...LOC 2234Z 318DEG 27KT 4100 7372
$$
JM094
WWUS51 KOKX 292247
SVSOKX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
647 PM EDT FRI JUL 29 2011
CTC001-292255-
/O.CAN.KOKX.TO.W.0005.000000T0000Z-110729T2300Z/
FAIRFIELD CT-
647 PM EDT FRI JUL 29 2011
...THE TORNADO WARNING FOR EXTREME SOUTHERN FAIRFIELD COUNTY IS
CANCELLED...
THE RADAR INDICATED TORNADO IS CONFINED TO EXTREME SOUTHERN
WESTCHESTER COUNTY AND WILL STAY WEST OF SOUTHERN FAIRFIELD COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.
LAT...LON 4096 7375 4099 7375 4100 7374 4101 7372
4103 7370 4104 7368 4101 7365 4099 7365
4095 7366 4094 7370 4092 7371 4091 7374
TIME...MOT...LOC 2245Z 319DEG 23KT 4095 7367
$$
NYC119-292300-
/O.CON.KOKX.TO.W.0005.000000T0000Z-110729T2300Z/
WESTCHESTER NY-
647 PM EDT FRI JUL 29 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR SOUTHERN
WESTCHESTER COUNTY...
AT 644 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR RYE...MOVING
SOUTHEAST AT 25 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.
&&
LAT...LON 4096 7375 4099 7375 4100 7374 4101 7372
4103 7370 4104 7368 4101 7365 4099 7365
4095 7366 4094 7370 4092 7371 4091 7374
TIME...MOT...LOC 2245Z 319DEG 23KT 4095 7367
$$
JM604
WWUS51 KOKX 292259
SVSOKX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
659 PM EDT FRI JUL 29 2011
NYC119-292307-
/O.EXP.KOKX.TO.W.0005.000000T0000Z-110729T2300Z/
WESTCHESTER NY-
659 PM EDT FRI JUL 29 2011
...THE TORNADO WARNING FOR SOUTHERN WESTCHESTER COUNTY WILL EXPIRE AT
700 PM EDT...
THE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO HAS WEAKENED...MOVED
SOUTH AND OUT OF SOUTHERN WESTCHESTER COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.
LAT...LON 4096 7375 4099 7375 4100 7374 4101 7372
4103 7370 4104 7368 4101 7365 4099 7365
4095 7366 4094 7370 4092 7371 4091 7374
TIME...MOT...LOC 2257Z 319DEG 23KT 4089 7360
$$
JMThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 4:01 AM EDT | Small Craft Advisory | OKX | 19 hr | |
| Jul 29, 4:19 PM EDT | Special Weather Statement | OKX | Orange | 41 min |
| Jul 29, 4:32 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 43 min |
| Jul 29, 4:54 PM EDT | Tornado Warning | OKX | Orange | 36 min |
| Jul 29, 5:22 PM EDT | Tornado Warning | OKX | Orange, Rockland, Westchester | 38 min |
| Jul 29, 5:34 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 41 min |
| Jul 29, 5:57 PM EDT | Tornado Warning | OKX | Rockland, Westchester | 33 min |
| Jul 29, 6:09 PM EDT | Special Marine Warning | OKX | 54 min | |
| Jul 29, 6:16 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 44 min |
| Jul 29, 6:42 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Suffolk | 48 min |
| Jul 29, 6:49 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Rockland, Westchester | 27 min |
| Jul 29, 7:13 PM EDT | Severe Thunderstorm Warning | OKX | Kings, New York, Queens | 32 min |
| Jul 29, 7:32 PM EDT | Special Weather Statement | OKX | Nassau | 43 min |
| Jul 29, 7:39 PM EDT | Special Marine Warning | OKX | 36 min | |
| Jul 29, 7:47 PM EDT | Special Weather Statement | OKX | Queens | 28 min |
Nearby
Tornado Warnings in Connecticut, 2011Tornado Warnings in New York, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.