Alert archive / Connecticut / Tornado Warnings in 2018

Tornado Warning 7, NWS Albany, NY

May 15, 2018Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this tornado warning at May 15, 2018, 4:48 PM EDT for Northwest Hills Planning Region, Connecticut. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 15, 2018, 4:48 PM EDT (20:48 UTC)
Expired: May 15, 2018, 5:07 PM EDT
In force: 19 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Northwest Hills Planning Region, CT

The radar

The Brookhaven radar (KOKX), 82 km from the middle of the area, began a volume at 20:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 15, 1:03 PM EDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.8 hours before the alert went out and 82 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 909 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

273 
WFUS51 KALY 152048
TORALY
CTC005-152130-
/O.NEW.KALY.TO.W.0007.180515T2048Z-180515T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Albany NY
448 PM EDT TUE MAY 15 2018

The National Weather Service in Albany has issued a

* Tornado Warning for...
  Southern Litchfield County in northern Connecticut...

* Until 530 PM EDT.
    
* At 447 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near New Milford, moving east at 60 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Woodbury Center around 500 PM EDT.
  Oakville around 505 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany
&&

LAT...LON 4149 7337 4151 7339 4149 7344 4152 7344
      4161 7348 4163 7301 4162 7302 4161 7302
      4161 7306 4159 7306 4159 7308 4157 7309
      4156 7316 4151 7316 4151 7332 4149 7333
      4147 7332
TIME...MOT...LOC 2047Z 270DEG 52KT 4153 7341 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JEC

1 follow-up statement

091 
WWUS51 KALY 152107
SVSALY

Severe Weather Statement
National Weather Service Albany NY
507 PM EDT TUE MAY 15 2018

CTC005-152117-
/O.CAN.KALY.TO.W.0007.000000T0000Z-180515T2130Z/
Litchfield CT-
507 PM EDT TUE MAY 15 2018

...THE TORNADO WARNING FOR SOUTHERN LITCHFIELD COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM EDT for northern
Connecticut.

LAT...LON 4149 7337 4151 7339 4149 7344 4152 7344
      4161 7348 4163 7301 4162 7302 4161 7302
      4161 7306 4159 7306 4159 7308 4157 7309
      4156 7316 4151 7316 4151 7332 4149 7333
      4147 7332
TIME...MOT...LOC 2104Z 270DEG 52KT 4153 7302 

$$

JEC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 2:57 PM EDT	Tornado Warning	ALY	Northwest Hills Planning Region	33 min
May 15, 2:58 PM EDT	Severe Thunderstorm Warning	ALY	Northwest Hills Planning Region	62 min
May 15, 3:34 PM EDT	Severe Thunderstorm Warning	ALY	Northwest Hills Planning Region	56 min
May 15, 3:38 PM EDT	Tornado Warning	ALY	Northwest Hills Planning Region	22 min
May 15, 4:28 PM EDT	Severe Thunderstorm Warning	ALY	Northwest Hills Planning Region	32 min
May 15, 4:58 PM EDT	Severe Thunderstorm Warning	ALY	Northwest Hills Planning Region	17 min

Nearby

Tornado Warnings in Connecticut, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.