Alert archive / New York / Special Weather Statements in 2017

Special Weather Statement, NWS Buffalo, NY

June 23, 2017Jefferson County, New York

NWS Buffalo, NY issued this special weather statement at Jun 23, 2017, 3:36 PM EDT for Jefferson County, New York. It was in force for 54 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
Jun 23, 2017, 3:36 PM EDT (19:36 UTC)
Expired
Jun 23, 2017, 4:30 PM EDT
In force
54 min
Issued by
NWS Buffalo, NY

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 30 km from the middle of the area, began a volume at 19:40 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

Albany, NY (KALY), launched 12:00Z, 7.6 hours before the alert went out and 212 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 2017-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 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, Albany, NY at 12:00Z on 2017-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
142 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
1323 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Jun 23, 1:44 PM EDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jun 23, 1:44 PM EDT, 1 hour 52 minutes before
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Hazardous weather outlook, Jun 23, 5:38 AM EDT, 9 hours 58 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
538 AM EDT Fri Jun 23 2017

NYZ005>007-240945-
Northern Cayuga-Oswego-Jefferson-
538 AM EDT Fri Jun 23 2017

This Hazardous Weather Outlook is for portions of central New York.

.DAY ONE...Today and Tonight.

Showers and thunderstorms will develop ahead of a cold front this
afternoon. There is a Marginal Risk for a few of these storms to
become severe with gusty winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Lakeshore flooding remains a potential concern this weekend as
period of breezy westerly winds will develop Saturday afternoon and
again Sunday afternoon. Winds for Saturday appear marginal for
producing lakeshore flooding, while stronger winds Sunday may produce
the greater impact between the two days. Above normal lake levels
when combined with a strong onshore wind can worsen lake shore
flooding and enhanced wave action can result in further shoreline
erosion.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ001>004-008-010>014-019>021-085-240945-
Niagara-Orleans-Monroe-Wayne-Lewis-Northern Erie-Genesee-Wyoming-
Livingston-Ontario-Chautauqua-Cattaraugus-Allegany-Southern Erie-
538 AM EDT Fri Jun 23 2017

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...Today and Tonight.

Showers and thunderstorms will develop ahead of a cold front this
afternoon. There is a Marginal Risk for a few of these storms to
become severe with gusty winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability of widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-240945-
Upper Niagara River and Buffalo Harbor-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
Lower Niagara River-
Lake Ontario nearshore waters from the Niagara River to Hamlin Beach-
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence
River-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence River-
Saint Lawrence River from Cape Vincent to Ogdensburg-
Saint Lawrence River from Ogdensburg to Saint Regis-
538 AM EDT Fri Jun 23 2017

This Hazardous Weather Outlook is for the New York waters of Lake
Erie, Lake Ontario, and the Saint Lawrence River.

.DAY ONE...Today and Tonight.

Showers and thunderstorms will develop ahead of a cold front this
afternoon. There is a Marginal Risk for a few of these storms to
become severe with gusty winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability of widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

In the hours before

Special weather statement, Jun 23, 3:36 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Buffalo NY
336 PM EDT FRI JUN 23 2017

NYZ007-008-232030-
Jefferson-Lewis-
336 PM EDT FRI JUN 23 2017

...ANOTHER ROUND OF STORMS WILL BRING BRIEF HEAVY RAINFALL JEFFERSON
AND NORTHERN LEWIS COUNTIES...

At 331 PM EDT, heavy rain showers and possibly a thunderstorm were
moving into Jefferson and Lewis county north of Lowville. This will
bring a brief period of heavy rain, with about a half inch of rain
in 30 minutes expected. Because of the heavy rainfall last night, it
will not take much additional rainfall to cause ponding on roadways
and for small streams and creeks to rise to near bankfull.

At this time, the fast motion of the storms is expected to result in
only a brief period of rain. Even so, this heavy rain may cause
minor flooding.

Locations impacted include... Watertown, Fort Drum, Carthage, West
Carthage, Adams, Dexter, Glen Park, Herrings, Adams Center and
Redwood.

Heavy rainfall may cause localized flooding. Do not drive your
vehicle through flooded roadways.

LAT...LON 4389 7515 4372 7619 4408 7629 4414 7623
      4436 7576 4410 7517
TIME...MOT...LOC 1931Z 241DEG 34KT 4379 7605

Apffel

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 6:19 PM EDTSmall Craft AdvisoryBUF8 hr

Nearby

Special Weather Statements in New York, 2017Every 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.