Alert archive / New York / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 16, NWS New York, NY

June 2, 2019Nassau County, Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Jun 2, 2019, 10:02 PM EDT for Nassau County, Suffolk County, New York. It was in force for 43 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
Jun 2, 2019, 10:02 PM EDT (02:02 UTC)
Expired
Jun 2, 2019, 10:45 PM EDT
In force
43 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Nassau County, NY, Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 23 km from the middle of the area, began a volume at 02:02 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 00:00Z, 2.0 hours before the alert went out and 23 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 00:00Z on 2019-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 826 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2019-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
826 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1007 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 2, 7:59 PM EDT, 2 hours 3 minutes earlier.

Area forecast discussion, Jun 2, 7:59 PM EDT, 2 hours 3 minutes before
Area Forecast Discussion
National Weather Service New York NY
759 PM EDT Sun Jun 2 2019

.SYNOPSIS...
A cold front moves across the area this evening. High pressure
builds into the region late tonight through Monday night. The high
passes to the south off the Mid Atlantic coast on Tuesday,
while a warm front passes to the north and west during the
afternoon and evening hours. Another frontal system will impact
the area Wednesday into Thursday with high pressure returning to
close out the week.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
     Severe Thunderstorm Watch 318 is in effect for our NJ zones
until 10pm tonight...

A cold front moves across the region tonight.

First round of showers and thunderstorms associated with a pre-
frontal trough have moved across the region, mainly impacting
northern NJ and NYC. These storms have since weakened as they
moved east. There should be a short break, before additional
showers and thunderstorms move across the region, this time
associated with the actual cold front.

CAPE values should lower through the next couple of hours, so
unsure if any storms will become severe. However, with the
severe thunderstorm watch still in place, will continue to keep
the enhanced wording in the NJ zones. Any thunderstorms will be
gusty winds, hail, heavy rain, and frequent lightning.

Most of the storms should come to an end between 02z and 05z
from west to east.

Once the storms move offshore and the cold front moves east of
the area expect drying to take place as the wind becomes more
NW. The NW flow should bring in much lower dewpoints as well.
Overnight lows fall into the upper 40s and 50s.

There is a moderate risk of rip current development on the
Atlantic beaches into this evening.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
The cold front continues to move offshore on Monday with a
trailing upper level trough passing over the region. High
pressure at the surface builds west of the region and will be
slow to build in locally. Low level environment too dry for any
rainfall, so left forecast dry. It should be a mostly sunny day,
however some clouds are possible across the lower hudson valley
late in the afternoon. Temperatures on Monday will be
noticeably cooler than previous day with highs ranging from the
lower 60s to lower 70s for most locations. In addition, it will
be much less humid with much lower dew points.

High pressure continues to build towards the region Monday
night with dry weather continuing. Cooler lows are forecast from
the lower 40s to lower 50s.

There is a low risk of rip current development on the Atlantic
beaches Monday.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
Mean upper trough will reside across eastern Canada and New England
during the period. This will place the area near the southern edge
of the westerlies with a mid week short wave trough sending a weak
frontal system across the area Wednesday into Thursday. The latter
of which will increase chances of convection during this period.
Early assessment is that parameters are marginal for strong and/or
severe convection. Prior to this, there is also a slight chance of
showers Tuesday evening with warm advection ahead of a warm front.
The best thermal forcing looks to be north of the area at this time.

Temperatures will be seasonable on Tuesday, followed by period of
above normal temperatures through the end of the week.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
A cold front approaches and moves across the terminals this evening.
High pressure builds Monday.

VFR, however some MVFR vsbys in showers possible before
midnight. SW winds bcmg W, then NW by midnight at around 10 kt.
For Monday, VFR with NW winds increasing to around 15 kt with
gusts 20-25kt.

.OUTLOOK FOR 00Z TUESDAY THROUGH FRIDAY...
.Mon night...VFR. NW gusts 20-25 kt early evening.
.Tue...VFR.
.Wed...Chance of MVFR in showers and possible thunderstorms late in
the day.
.Thu...Chance of MVFR or lower in showers.
.Fri...VFR.

&&

.MARINE...
A tightening pressure gradient ahead of a cold front will result
in increasing southerly flow this evening. Gusts around 20 kt
are possible on the ocean waters with seas gradually building to
3-4 ft. Winds shift behind the front tonight into Monday
afternoon, but should remain below 25 kt through this time
frame. There may be an increase in winds to SCA levels and seas
could build to around 5 ft on the waters east of Moriches inlet
Monday evening.

Sub-SCA conditions are likely on Tuesday with high pressure
near the waters. An approaching cold front Wednesday may build
ocean seas to near 5 ft and bring marginal SCA gusts. The front
may remain over the waters into Thursday keeping the potential for
SCA conditions due to elevated ocean seas. High pressure builds in
for the end of the week.

&&

.HYDROLOGY...
There is a chance for minor flooding with any thunderstorms this
evening. Basin averaged amounts through tonight of 0.25 to 0.5
inch are expected with locally higher amounts possible. Storms
should have some movement to them, which should help mitigate
the flood potential.

&&

.TIDES/COASTAL FLOODING...
Astronomically high tides today bring the potential of localized
minor coastal flooding. Isolated minor coastal flooding is
anticipated with this evenings high tide for the south shore back
bays of Long Island and Western Long Island Sound locations in
southwest Connecticut and coastal Westchester. A coastal flood
statement has been issued where tidal departures of one half to one
foot are forecast.

&&

.EQUIPMENT...
NYC NOAA Weather Radio Station KWO35 (162.55 MHz) remains off
the air.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
NJ...None.
MARINE...None.

&&

SYNOPSIS...BC/DW
NEAR TERM...BC
SHORT TERM...BC
LONG TERM...DW
AVIATION...JC/PW
MARINE...BC/DW
HYDROLOGY...BC/DW
TIDES/COASTAL FLOODING...
EQUIPMENT...
Hazardous weather outlook, Jun 2, 3:07 PM EDT, 6 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service New York NY
307 PM EDT Sun Jun 2 2019

NJZ002-004-006-103>108-031700-
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-
307 PM EDT Sun Jun 2 2019

...SEVERE THUNDERSTORM WATCH 318 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northeast New Jersey.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ335-338-345-355-CTZ005-006-009-010-NYZ067>075-078-080-176>179-
031700-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-
South Shore Bays from Jones Inlet through Shinnecock Bay-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-Northern Fairfield-
Northern New Haven-Southern Fairfield-Southern New Haven-Orange-
Putnam-Rockland-Northern Westchester-Southern Westchester-
New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)-
Northwestern Suffolk-Southwestern Suffolk-Northern Queens-
Northern Nassau-Southern Queens-Southern Nassau-
307 PM EDT Sun Jun 2 2019

This Hazardous Weather Outlook is for Atlantic coastal waters,
southern Connecticut and southeast New York.

.DAY ONE...This afternoon and tonight.

Strong to severe thunderstorms will be possible this afternoon into
this evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ330-340-350-353-CTZ007-008-011-012-NYZ079-081-031700-
Long Island Sound East of New Haven CT/Port Jefferson NY-
Peconic and Gardiners Bays-
Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
Northern Middlesex-Northern New London-Southern Middlesex-
Southern New London-Northeastern Suffolk-Southeastern Suffolk-
307 PM EDT Sun Jun 2 2019

This Hazardous Weather Outlook is for Atlantic coastal waters,
southern Connecticut and southeast New York.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jun 2, 5:17 PM EDT, 4 hours 45 minutes before
Special Weather Statement
National Weather Service New York NY
517 PM EDT Sun Jun 2 2019

NJZ006-106>108-NYZ072-074-075-176-022145-
Hudson-Eastern Union-Eastern Essex-Western Union-Northern Queens-New
York (Manhattan)-Richmond (Staten Is.)-Kings (Brooklyn)-
517 PM EDT Sun Jun 2 2019

...A STRONG THUNDERSTORM WILL AFFECT HUDSON...UNION...SOUTHEASTERN
ESSEX...QUEENS...RICHMOND...KINGS AND NEW YORK (MANHATTAN)
COUNTIES...

At 516 PM EDT, a strong thunderstorm was located over Clark, or near
Linden, moving east at 35 mph.

Winds in excess of 30 mph and half inch hail are possible with this
storm.

Locations impacted include...
Newark, Jersey City, Elizabeth, Flatbush, Bayonne, Hoboken, Linden,
Coney Island, Todt Hill, Crown Heights, Huguenot, The Verrazano
Narrows Bridge, Canarsie, Bay Ridge and Lower East Side.

LAT...LON 4051 7426 4052 7425 4055 7425 4057 7421
      4060 7422 4059 7429 4060 7440 4070 7441
      4076 7386 4070 7386 4069 7387 4058 7385
      4059 7387 4057 7388 4056 7400 4057 7402
      4059 7401 4060 7404 4052 7413 4051 7418
TIME...MOT...LOC 2116Z 267DEG 30KT 4061 7431

DW
Local storm report, Jun 2, 6:14 PM EDT, 3 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
614 PM EDT SUN JUN 02 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HAIL             BROWNSVILLE             40.66N  73.92W
06/02/2019  M1.00 INCH       KINGS              NY   SOCIAL MEDIA

&&

CJB
Special weather statement, Jun 2, 8:51 PM EDT, 1 hour 11 minutes before
Special Weather Statement
National Weather Service New York NY
851 PM EDT Sun Jun 2 2019

NJZ006-105>108-NYZ074-030130-
Hudson-Eastern Union-Eastern Essex-Western Union-Western
Essex-Richmond (Staten Is.)-
851 PM EDT Sun Jun 2 2019

...A STRONG THUNDERSTORM WILL AFFECT HUDSON...UNION...SOUTHERN ESSEX
AND RICHMOND COUNTIES...

At 851 PM EDT, a strong thunderstorm was located over Bound Brook, or
over Somerville, moving northeast at 40 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Newark, Elizabeth, Bayonne, Plainfield, Bloomfield, Linden, Orange,
Summit, Millburn, Harrison, Todt Hill, Port Richmond, Kearny, Clark
and Union.

LAT...LON 4056 7421 4059 7421 4060 7422 4059 7429
      4061 7431 4060 7446 4062 7442 4066 7440
      4067 7440 4065 7445 4068 7445 4074 7437
      4083 7415 4079 7415 4077 7412 4069 7409
      4059 7406 4054 7425
TIME...MOT...LOC 0051Z 246DEG 36KT 4057 7455

PW
Local storm report, Jun 2, 9:37 PM EDT, 25 minutes before
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Special weather statement, Jun 2, 9:48 PM EDT, 14 minutes before
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Local storm report, Jun 2, 9:52 PM EDT, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 8:57 PM EDTSpecial Marine WarningOKX48 min
Jun 2, 9:10 PM EDTSevere Thunderstorm WarningOKXRichmond35 min
Jun 2, 9:32 PM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Queens43 min
Jun 2, 9:40 PM EDTSpecial Marine WarningOKX50 min
Jun 2, 10:12 PM EDTSpecial Marine WarningOKX48 min
Jun 2, 10:29 PM EDTSpecial Marine WarningOKX61 min
Jun 2, 10:49 PM EDTSpecial Weather StatementOKXSuffolk41 min
Jun 2, 8:51 PM EDTSpecial Weather StatementOKXEssex, Union39 min
Jun 2, 9:48 PM EDTSpecial Weather StatementOKXEssex, Hudson42 min

Nearby

Severe Thunderstorm Warnings in New York, 2019Every severe thunderstorm warning in 2019

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.