Alert archive / New York / Special Weather Statements in 2019

Special Weather Statement, NWS Buffalo, NY

July 29, 2019Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Jul 29, 2019, 7:05 PM EDT for Lewis County, New York. It was in force for 25 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 29, 2019, 7:05 PM EDT (23:05 UTC)
Expired
Jul 29, 2019, 7:30 PM EDT
In force
25 min
Issued by
NWS Buffalo, NY

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 7 km from the middle of the area, began a volume at 23:09 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, 11.1 hours before the alert went out and 186 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 2019-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 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 2019-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 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
323 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
911 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 29, 4:58 PM EDT, 2 hours 7 minutes earlier.

Area forecast discussion, Jul 29, 4:58 PM EDT, 2 hours 7 minutes before
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Hazardous weather outlook, Jul 29, 4:53 AM EDT, 14 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
453 AM EDT Mon Jul 29 2019

NYZ001>008-010>014-019>021-085-300900-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis-
Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
453 AM EDT Mon Jul 29 2019

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

.DAY ONE...Today and tonight.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Scattered thunderstorms will develop Tuesday afternoon and evening. Some
of these storms may contain damaging winds and heavy downpours.

.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-SLZ022-024-300900-
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-
453 AM EDT Mon Jul 29 2019

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.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Scattered thunderstorms will develop Tuesday afternoon and evening. Some
of these storms may contain gusty winds and small hail.

.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, Jul 29, 2:02 PM EDT, 5 hours 3 minutes before
Special Weather Statement
National Weather Service Buffalo NY
202 PM EDT Mon Jul 29 2019

NYZ004>006-291845-
Oswego-Wayne-Northern Cayuga-
202 PM EDT Mon Jul 29 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WAYNE...CAYUGA AND
SOUTHWESTERN OSWEGO COUNTIES...

At 201 PM EDT, a strong thunderstorm was located about 5 miles west
of Fair Haven Beach State Park, moving east at 15 mph.

Winds in excess of 30 mph and half inch hail are possible with this
storm, along with very heavy rainfall.

Locations impacted include...
Oswego, Fair Haven Beach State Park, Sterling, Hannibal, Red Creek,
South Hannibal, and Port Bay.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4337 7647 4324 7648 4325 7689 4334 7690
      4335 7681 4339 7673 4345 7665 4348 7656
TIME...MOT...LOC 1801Z 263DEG 12KT 4334 7676

Hitchcock
Special weather statement, Jul 29, 2:46 PM EDT, 4 hours 19 minutes before
Special Weather Statement
National Weather Service Buffalo NY
246 PM EDT Mon Jul 29 2019

NYZ005-006-291930-
Oswego-Northern Cayuga-
246 PM EDT Mon Jul 29 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN CAYUGA AND
SOUTHWESTERN OSWEGO COUNTIES...

At 244 PM EDT, a strong thunderstorm was located over Fair Haven,
moving east at 10 mph.

Winds in excess of 35 mph and half inch hail are possible with this
storm, along with brief heavy downpours. Minor flooding in poor
drainage areas is possible.

Locations impacted include...
Fair Haven, Sterling, Martville, Hannibal, Hannibal.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4324 7671 4334 7672 4340 7659 4341 7648
      4323 7646
TIME...MOT...LOC 1844Z 274DEG 8KT 4332 7665

Hitchcock
Special weather statement, Jul 29, 4:11 PM EDT, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Buffalo NY
411 PM EDT Mon Jul 29 2019

NYZ004-005-292100-
Wayne-Northern Cayuga-
411 PM EDT Mon Jul 29 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN WAYNE AND
CAYUGA COUNTIES...

At 410 PM EDT, strong thunderstorms were clustered near Clyde, or 7
miles north of Seneca Falls, moving east at 20 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Clyde, Weedsport, Cato, Conquest, Savannah, Port Byron, Meridian and
South Butler.

This includes Interstate 90 near exit 40.

LAT...LON 4310 7650 4303 7650 4303 7671 4301 7694
      4308 7697 4324 7649 4315 7647 4314 7649
      4311 7647
TIME...MOT...LOC 2010Z 256DEG 15KT 4302 7682

Welch
Special weather statement, Jul 29, 4:51 PM EDT, 2 hours 14 minutes before
Special Weather Statement
National Weather Service Buffalo NY
451 PM EDT Mon Jul 29 2019

NYZ004>006-292130-
Oswego-Wayne-Northern Cayuga-
451 PM EDT Mon Jul 29 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN WAYNE...CAYUGA AND
SOUTHWESTERN OSWEGO COUNTIES...

At 450 PM EDT, a strong thunderstorm was located near Chimney Bluffs
State Park, or 13 miles southwest of Fair Haven Beach State Park,
moving northeast at 35 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Fair Haven Beach State Park, Clyde, Sterling, Rose, Ira, Wolcott,
Minetto, Hannibal, Red Creek, South Hannibal, Furniss, North Rose,
Granby Center and South Butler.

Heavy rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4308 7692 4318 7698 4343 7648 4324 7644
TIME...MOT...LOC 2050Z 246DEG 30KT 4320 7686

Welch
Special weather statement, Jul 29, 6:22 PM EDT, 43 minutes before
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Special weather statement, Jul 29, 7:05 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 8:40 PM EDTSpecial Weather StatementBUFChautauqua50 min
Jul 28, 9:50 PM EDTSpecial Marine WarningBUF55 min
Jul 28, 9:54 PM EDTSpecial Weather StatementBUFChautauqua36 min
Jul 28, 10:00 PM EDTSpecial Weather StatementBUFChautauqua30 min
Jul 28, 10:26 PM EDTSpecial Weather StatementBUFChautauqua49 min
Jul 28, 10:56 PM EDTSpecial Weather StatementBUFChautauqua64 min
Jul 28, 11:25 PM EDTSpecial Weather StatementBUFAllegany65 min
Jul 29, 2:02 PM EDTSpecial Weather StatementBUFWayne43 min
Jul 29, 2:46 PM EDTSpecial Weather StatementBUFOswego44 min
Jul 29, 4:11 PM EDTSpecial Weather StatementBUFCayuga49 min
Jul 29, 4:51 PM EDTSpecial Weather StatementBUFWayne39 min
Jul 29, 4:55 PM EDTSevere Thunderstorm WarningBUFCayuga23 min
Jul 29, 6:22 PM EDTSpecial Weather StatementBUFOswego23 min

Nearby

Special Weather Statements in New York, 2019Every special weather statement 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.