Alert archive / Connecticut / Special Weather Statements in 2017

Special Weather Statement, NWS New York, NY

July 12, 2017

NWS New York, NY issued this special weather statement at Jul 12, 2017, 3:39 PM EDT. It was in force for 36 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: Jul 12, 2017, 3:39 PM EDT (19:39 UTC)
Expired: Jul 12, 2017, 4:15 PM EDT
In force: 36 min
Issued by: NWS New York, NY

The radar

The Boston radar (KBOX), 87 km from the middle of the area, began a volume at 19:38 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 12:00Z, 7.7 hours before the alert went out and 108 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: 529 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1143 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 12, 1:59 PM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Jul 12, 1:59 PM EDT, 1 hour 40 minutes before

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Hazardous weather outlook, Jul 12, 4:14 AM EDT, 11 hours 25 minutes before

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In the hours before

Special weather statement, Jul 12, 3:39 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 12:35 PM EDT	Heat Advisory	OKX	Bronx, Kings, New York, Queens, Richmond	29 hr
Jul 12, 4:26 PM EDT	Special Weather Statement	OKX		34 min
Jul 12, 5:38 PM EDT	Special Weather Statement	OKX		52 min
Jul 12, 6:14 PM EDT	Special Weather Statement	OKX		61 min
Jul 12, 6:29 PM EDT	Areal Flood Advisory	OKX	Southeastern Connecticut Planning Region	2 hr
Jul 12, 7:28 PM EDT	Special Weather Statement	OKX		62 min
Jul 12, 7:46 PM EDT	Areal Flood Advisory	OKX	Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region	119 min

Nearby

Special Weather Statements in Connecticut, 2017 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.