Alert archive / Connecticut / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 13, NWS New York, NY

June 19, 2017Greater Bridgeport Planning Region, Connecticut; Putnam County, New York

NWS New York, NY issued this severe thunderstorm warning at Jun 19, 2017, 4:22 PM EDT for Greater Bridgeport Planning Region, Connecticut; Putnam County, New York. It was in force for 38 min. 1 report 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
Jun 19, 2017, 4:22 PM EDT (20:22 UTC)
Expired
Jun 19, 2017, 5:00 PM EDT
In force
38 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Greater Bridgeport Planning Region, CT, Putnam County, NY

The radar

The Brookhaven radar (KOKX), 98 km from the middle of the area, began a volume at 20:26 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

TimeReportWhereRemark
Jun 19, 4:33 PM EDTTSTM WND DMG1 E Tilly Foster, NYTREE DOWN ON ROUTE 312.

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.

IssuedProductOfficeLasted
Jun 19, 11:13 AM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.4 hours before the alert went out and 98 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 2017-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1007 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2017-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
1007 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

303 
WUUS51 KOKX 192022
SVROKX
CTC001-NYC079-192100-
/O.NEW.KOKX.SV.W.0013.170619T2022Z-170619T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
422 PM EDT MON JUN 19 2017

The National Weather Service in Upton NY has issued a

* Severe Thunderstorm Warning for...
  North central Fairfield County in southern Connecticut...
  Eastern Putnam County in southeastern New York...

* Until 500 PM EDT

* At 422 PM EDT, a severe thunderstorm was located over Lake Carmel,
  moving north at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near, 
  New Fairfield around 425 PM EDT. 
  Sherman around 440 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4166 7350 4166 7349 4165 7349 4164 7350
      4156 7346 4139 7356 4145 7379 4150 7377
      4151 7369 4153 7360 4153 7353 4167 7352
TIME...MOT...LOC 2022Z 200DEG 40KT 4150 7365 

HAIL...1.00IN
WIND...60MPH
 
$$

JP
2 follow-up statements
026 
WWUS51 KOKX 192040
SVSOKX

Severe Weather Statement
National Weather Service New York NY
440 PM EDT MON JUN 19 2017

CTC001-NYC079-192100-
/O.CON.KOKX.SV.W.0013.000000T0000Z-170619T2100Z/
Fairfield CT-Putnam NY-
440 PM EDT MON JUN 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTH CENTRAL FAIRFIELD AND EASTERN PUTNAM COUNTIES...

At 440 PM EDT, a severe thunderstorm was located over Wingdale, or 7
miles northwest of Sherman, moving north at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

this severe thunderstorm will remain over mainly rural areas of north
central Fairfield and eastern Putnam Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4166 7350 4166 7349 4165 7349 4164 7350
      4156 7346 4139 7356 4145 7379 4150 7377
      4151 7369 4153 7360 4153 7353 4167 7352
TIME...MOT...LOC 2040Z 200DEG 40KT 4168 7356 

HAIL...1.00IN
WIND...60MPH
 
$$

JP
204 
WWUS51 KOKX 192101
SVSOKX

Severe Weather Statement
National Weather Service New York NY
501 PM EDT MON JUN 19 2017

CTC001-NYC079-192111-
/O.EXP.KOKX.SV.W.0013.000000T0000Z-170619T2100Z/
Fairfield CT-Putnam NY-
501 PM EDT MON JUN 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL FAIRFIELD AND
EASTERN PUTNAM COUNTIES HAS EXPIRED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been allowed to expire.

A severe thunderstorm watch remains in effect until 800 PM EDT for
southern Connecticut...and southeastern New York.

LAT...LON 4166 7350 4166 7349 4165 7349 4164 7350
      4156 7346 4139 7356 4145 7379 4150 7377
      4151 7369 4153 7360 4153 7353 4167 7352
TIME...MOT...LOC 2101Z 200DEG 40KT 4189 7346 

$$

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 12:49 PM EDTSpecial Weather StatementOKX56 min
Jun 19, 5:30 PM EDTAreal Flood AdvisoryOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region3 hr
Jun 19, 5:32 PM EDTSpecial Weather StatementOKX58 min
Jun 19, 5:34 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region56 min
Jun 19, 6:13 PM EDTSpecial Weather StatementOKX47 min
Jun 19, 11:45 AM EDTSpecial Weather StatementOKXOrange, Rockland45 min
Jun 19, 11:50 AM EDTSpecial Weather StatementOKXRockland55 min
Jun 19, 12:13 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Rockland, Westchester62 min
Jun 19, 12:24 PM EDTSpecial Weather StatementOKXOrange66 min
Jun 19, 2:10 PM EDTSpecial Weather StatementOKXOrange65 min
Jun 19, 2:19 PM EDTSpecial Weather StatementOKXOrange56 min
Jun 19, 2:23 PM EDTAreal Flood AdvisoryOKXOrange112 min
Jun 19, 2:35 PM EDTSevere Thunderstorm WarningOKXOrange55 min
Jun 19, 2:58 PM EDTSpecial Weather StatementOKXPutnam47 min
Jun 19, 3:01 PM EDTSpecial Weather StatementOKXOrange44 min
Jun 19, 3:03 PM EDTFlash Flood WarningOKXOrange3 hr
Jun 19, 3:23 PM EDTSevere Thunderstorm WarningOKXPutnam19 min
Jun 19, 4:02 PM EDTSpecial Weather StatementOKXOrange43 min
Jun 19, 4:10 PM EDTSpecial Weather StatementOKXPutnam50 min
Jun 19, 4:31 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam33 min
Jun 19, 4:35 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond and 2 more55 min
Jun 19, 4:38 PM EDTSpecial Marine WarningOKX67 min
Jun 19, 4:50 PM EDTSpecial Marine WarningOKX55 min
Jun 19, 5:01 PM EDTSevere Thunderstorm WarningOKXBronx, New York, Richmond, Rockland, Westchester44 min
Jun 19, 5:05 PM EDTFlash Flood WarningOKXBronx, Kings, New York, Queens, Richmond3 hr
Jun 19, 5:06 PM EDTSpecial Weather StatementOKXOrange39 min
Jun 19, 5:18 PM EDTSpecial Weather StatementOKXRockland, Westchester57 min
Jun 19, 5:25 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond50 min
Jun 19, 5:29 PM EDTSpecial Marine WarningOKX31 min
Jun 19, 5:35 PM EDTSpecial Marine WarningOKX55 min
Jun 19, 6:03 PM EDTSpecial Weather StatementOKXNassau42 min
Jun 19, 6:07 PM EDTSpecial Marine WarningOKX53 min
Jun 19, 6:18 PM EDTSpecial Weather StatementOKXKings, Nassau, Queens57 min
Jun 19, 6:46 PM EDTAreal Flood AdvisoryOKXNassau3 hr

Nearby

Severe Thunderstorm Warnings in Connecticut, 2017Severe Thunderstorm Warnings in New York, 2017Every severe thunderstorm warning in 2017

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.