Alert archive / Connecticut / Special Weather Statements in 2012

Special Weather Statement, NWS New York, NY

July 4, 2012

NWS New York, NY issued this special weather statement at Jul 4, 2012, 9:17 PM EDT. It was in force for 58 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 4, 2012, 9:17 PM EDT (01:17 UTC)
Expired: Jul 4, 2012, 10:15 PM EDT
In force: 58 min
Issued by: NWS New York, NY

The radar

The Brookhaven radar (KOKX), 74 km from the middle of the area, began a volume at 01:19 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, 1.3 hours before the alert went out and 74 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: 1802 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1100 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 189 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 4, 8:07 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 4, 8:07 PM EDT, 1 hour 10 minutes before

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Hazardous weather outlook, Jul 4, 8:13 PM EDT, 1 hour 4 minutes before

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In the hours before

Special weather statement, Jul 4, 4:25 PM EDT, 4 hours 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
425 PM EDT WED JUL 4 2012

CTZ009-NYZ070-042100-
NORTHERN WESTCHESTER-SOUTHERN FAIRFIELD-
425 PM EDT WED JUL 4 2012

...STRONG THUNDERSTORM WILL IMPACT FAIRFIELD AND WESTCHESTER
COUNTIES...

AT 421 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR BEDFORD...OR NEAR MOUNT KISCO...AND MOVING
SOUTHEAST AT 20 MPH.

THIS STORM WILL BE...
  6 MILES SOUTHWEST OF NEW CANAAN BY 440 PM.
  NEAR STAMFORD BY 450 PM.
  NEAR DARIEN BY 455 PM.

HAIL UP TO NICKEL SIZE...AND GUSTY WINDS UP TO 50 MPH ARE EXPECTED
WITH THIS STORM.

LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE
TO SAFE SHELTER IMMEDIATELY.

LAT...LON 4128 7361 4106 7338 4104 7342 4105 7344
      4103 7348 4101 7355 4099 7358 4101 7360
      4099 7363 4099 7361 4097 7362 4097 7363
      4110 7373 4109 7374 4118 7381

JMC

Special weather statement, Jul 4, 5:15 PM EDT, 4 hours 2 minutes before

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Local storm report, Jul 4, 5:16 PM EDT, 4 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
516 PM EDT WED JUL 04 2012

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

0455 PM     TSTM WND DMG     GREENWICH               41.03N  73.63W
07/04/2012                   FAIRFIELD          CT   LAW ENFORCEMENT

            TREES DOWN BLOCKING BOTH LANES OF MERRITT PARKWAY
            BETWEEN EXITS 31 AND 32

&&

LN

Local storm report, Jul 4, 5:24 PM EDT, 3 hours 53 minutes before

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Special weather statement, Jul 4, 8:43 PM EDT, 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
843 PM EDT WED JUL 4 2012

CTZ005-009-NYZ068-070-050130-
NORTHERN FAIRFIELD-NORTHERN WESTCHESTER-PUTNAM-SOUTHERN FAIRFIELD-
843 PM EDT WED JUL 4 2012

...STRONG THUNDERSTORM WILL IMPACT FAIRFIELD...PUTNAM AND WESTCHESTER
COUNTIES...

AT 840 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR FISHKILL...OR NEAR BEACON...AND MOVING
SOUTHEAST AT 30 MPH.

THIS STORM WILL BE...
  5 MILES SOUTHWEST OF LAKE CARMEL BY 855 PM.
  NEAR MAHOPAC BY 900 PM.
  NEAR BREWSTER BY 905 PM.
  NEAR RIDGEFIELD BY 925 PM.
  NEAR GEORGETOWN BY 930 PM.

FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND GUSTY WINDS UP
TO 50 MPH ARE POSSIBLE WITH THIS STORM.

LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE
TO SAFE SHELTER IMMEDIATELY.

LAT...LON 4119 7313 4115 7317 4116 7320 4111 7326
      4112 7330 4110 7334 4107 7335 4106 7338
      4105 7345 4144 7398 4149 7393 4152 7370

JC

Special weather statement, Jul 4, 9:17 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
917 PM EDT WED JUL 4 2012

CTZ005-006-009-010-NYZ068-050215-
NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-PUTNAM-SOUTHERN
FAIRFIELD-SOUTHERN NEW HAVEN-
917 PM EDT WED JUL 4 2012

...STRONG THUNDERSTORM WILL IMPACT FAIRFIELD...PUTNAM AND
SOUTHWESTERN NEW HAVEN COUNTIES...

AT 915 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR DANBURY...AND MOVING SOUTHEAST AT 30 MPH.

CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40
MPH ARE EXPECTED WITH THIS STORM.

LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE
TO SAFE SHELTER IMMEDIATELY.

LAT...LON 4157 7346 4150 7343 4152 7339 4149 7337
      4148 7333 4150 7332 4127 7286 4126 7290
      4128 7292 4125 7293 4115 7322 4145 7368
      4153 7356 4153 7354 4155 7353 4158 7349

LN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 8:43 PM EDT	Special Weather Statement	OKX	Putnam	47 min
Jul 4, 8:57 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	33 min
Jul 4, 9:30 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	30 min
Jul 4, 10:01 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	29 min
Jul 4, 10:04 PM EDT	Special Marine Warning	OKX		26 min
Jul 4, 10:30 PM EDT	Special Weather Statement	OKX	Nassau	45 min
Jul 4, 10:33 PM EDT	Special Weather Statement	OKX	Suffolk	27 min
Jul 4, 10:38 PM EDT	Special Marine Warning	OKX		40 min
Jul 4, 11:16 PM EDT	Special Marine Warning	OKX		59 min
Jul 4, 11:17 PM EDT	Special Weather Statement	OKX	Suffolk	28 min
Jul 5, 4:05 AM EDT	Coastal Flood Statement	OKX	Kings, Nassau, Queens	12 hr
Jul 5, 3:38 PM EDT	Coastal Flood Statement	OKX	Kings, Nassau, Queens	8 hr

Nearby

Special Weather Statements in Connecticut, 2012 Every special weather statement in 2012

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.