Alert archive / New York / Tornado Watches in 2016

Tornado Watch 313

July 1, 20166 states

The Storm Prediction Center issued this tornado watch at Jul 1, 2016, 1:32 PM EDT for 6 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jul 1, 2016, 1:32 PM EDT (17:32 UTC)
Expired
Jul 1, 2016, 10:00 PM EDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 53 counties

Capitol Planning Region, CT, Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT, Northwest Hills Planning Region, CT, Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Albany County, NY, Bronx County, NY, Broome County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Kings County, NY, Madison County, NY, Montgomery County, NY, Nassau County, NY, New York County, NY, Oneida County, NY, Orange County, NY, Otsego County, NY, Putnam County, NY, Queens County, NY, Rensselaer County, NY, Richmond County, NY, Rockland County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Sullivan County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Westchester County, NY, Lackawanna County, PA, Luzerne County, PA, Pike County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA, Bennington County, VT, Windham County, VT

The radar

The Albany radar (KENX), 20 km from the middle of the area, began a volume at 17:32 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
5%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 1, 2:36 PM EDTSevere Thunderstorm WarningALYAlbany, Montgomery, Schenectady, Schoharie39 min
Jul 1, 2:48 PM EDTSevere Thunderstorm WarningOKXOrange27 min
Jul 1, 2:52 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster38 min
Jul 1, 3:18 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union57 min
Jul 1, 3:28 PM EDTSevere Thunderstorm WarningALYAlbany, Montgomery, Schenectady, Schoharie62 min
Jul 1, 3:29 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster27 min
Jul 1, 3:33 PM EDTSevere Thunderstorm WarningBGMOtsego31 min
Jul 1, 3:38 PM EDTSevere Thunderstorm WarningALYMontgomery, Schenectady, Schoharie52 min
Jul 1, 3:43 PM EDTTornado WarningALYDutchess47 min
Jul 1, 4:15 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region24 min
Jul 1, 4:25 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Schenectady, Washington65 min
Jul 1, 4:30 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region60 min
Jul 1, 4:32 PM EDTSevere Thunderstorm WarningALYWarren, Washington58 min
Jul 1, 5:02 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union43 min
Jul 1, 5:11 PM EDTTornado WarningALYWashington34 min
Jul 1, 5:12 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region48 min
Jul 1, 5:28 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Warren, Washington47 min
Jul 1, 5:59 PM EDTSevere Thunderstorm WarningALYBennington, Windham46 min
Jul 1, 6:06 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region39 min
Jul 1, 8:18 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer42 min
Jul 1, 8:31 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic44 min
Jul 1, 9:10 PM EDTSevere Thunderstorm WarningOKXBergen29 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.5 hours before the alert went out and 42 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, Albany, NY at 12:00Z on 2016-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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, Albany, NY at 12:00Z on 2016-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.19395878Sfc1 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
5 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1455 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

307 
WWUS20 KWNS 011730
SEL3  
SPC WW 011730
CTZ000-MAZ000-NJZ000-NYZ000-PAZ000-VTZ000-CWZ000-020200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 313
NWS STORM PREDICTION CENTER NORMAN OK
130 PM EDT FRI JUL 1 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WESTERN CONNECTICUT
  WESTERN MASSACHUSETTS
  NORTHEASTERN NEW JERSEY
  SOUTHEASTERN AND EAST-CENTRAL NEW YORK
  NORTHEAST PENNSYLVANIA
  SOUTHERN VERMONT
  COASTAL WATERS

* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 130 PM UNTIL
  1000 PM EDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

SUMMARY...THUNDERSTORMS...INCLUDING A FEW SUPERCELLS CAPABLE OF
HAIL...DAMAGING WIND...AND COUPLE TORNADOES...EXPECTED TO
FORM/STRENGTHEN AND SPREAD GENERALLY EAST ACROSS EASTERN NY AND NE
PA INTO NRN NJ AND WRN NEW ENGLAND LATER TODAY INTO TONIGHT.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH OF GLENS FALLS
NEW YORK TO 20 MILES WEST SOUTHWEST OF NEWARK NEW JERSEY.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU3).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 25030.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 12:51 PM EDTMesoscale DiscussionSPC114 min
Jul 1, 5:21 PM EDTMesoscale DiscussionSPC84 min
Jul 1, 7:03 PM EDTSevere Thunderstorm WatchSPCBelknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more4 hr
Jul 1, 1:56 PM EDTSevere Thunderstorm WatchSPCAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more7 hr
Jul 1, 5:43 PM EDTMesoscale DiscussionSPCSalem92 min

Nearby

Tornado Watches in New York, 2016Tornado Watches in Pennsylvania, 2016Tornado Watches in New Jersey, 2016Every tornado watch in 2016

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.