Alert archive / New York / Special Weather Statements in 2020

Special Weather Statement, NWS Buffalo, NY

July 13, 2020Erie County, New York

NWS Buffalo, NY issued this special weather statement at Jul 13, 2020, 7:29 PM EDT for Erie County, New York. It was in force for 31 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 13, 2020, 7:29 PM EDT (23:29 UTC)
Expired: Jul 13, 2020, 8:00 PM EDT
In force: 31 min
Issued by: NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 3 km from the middle of the area, began a volume at 23:30 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.5 hours before the alert went out and 2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1035 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 34 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 13, 7:23 PM EDT, 6 minutes earlier.

Area forecast discussion, Jul 13, 7:23 PM EDT, 6 minutes before

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Hazardous weather outlook, Jul 13, 5:23 AM EDT, 14 hours 6 minutes before

Hazardous Weather Outlook
National Weather Service Buffalo NY
523 AM EDT Mon Jul 13 2020

NYZ001>006-010>014-019>021-085-140930-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Northern Erie-
Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus-Allegany-
Southern Erie-
523 AM EDT Mon Jul 13 2020

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.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

NYZ007-008-140930-
Jefferson-Lewis-
523 AM EDT Mon Jul 13 2020

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

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected today. The main threat is heavy
rainfall with the potential for localized flooding. There is a
slight risk for excessive rainfall.

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

Hazardous weather is not expected at this time.

.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-SLZ022-024-140930-
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-
523 AM EDT Mon Jul 13 2020

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.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.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 13, 5:02 PM EDT, 2 hours 27 minutes before

Special Weather Statement
National Weather Service Buffalo NY
502 PM EDT Mon Jul 13 2020

NYZ014-132200-
Ontario-
502 PM EDT Mon Jul 13 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ONTARIO COUNTY...

At 502 PM EDT, a strong thunderstorm was located over Clifton
Springs, or 8 miles northeast of Canandaigua, moving southeast at 20
mph.

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

Locations impacted include...
Geneva, Canandaigua, Clifton Springs, Phelps, Manchester,
Shortsville, Seneca Castle, Port Gibson, Hall and West Junius.

This includes Interstate 90 near exit 42.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4289 7728 4304 7717 4304 7714 4301 7713
      4301 7701 4300 7696 4288 7697 4287 7696
      4287 7698 4281 7697 4276 7698 4276 7704
TIME...MOT...LOC 2102Z 298DEG 16KT 4295 7713

JLA

Special weather statement, Jul 13, 6:19 PM EDT, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Buffalo NY
619 PM EDT Mon Jul 13 2020

NYZ010-132315-
Northern Erie-
619 PM EDT Mon Jul 13 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ERIE COUNTY...

At 618 PM EDT, a strong thunderstorm was located over Williamsville,
moving southeast at 10 mph.

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

Locations impacted include...
Buffalo, Cheektowaga, West Seneca, Clarence, Lackawanna, Kenmore,
Depew, Tonawanda, Amherst, Lancaster, Williamsville, Grand Island,
Elma, Marilla, Small Boat Harbor, Erie Basin Marina, Alden, Blasdell,
Elma Center and Woodlawn Beach State Park.

This includes Interstate 90 between exits 56 and 49.

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

LAT...LON 4301 7847 4282 7850 4277 7896 4278 7896
      4280 7892 4284 7893 4289 7891 4292 7890
      4295 7892 4296 7893 4296 7896 4298 7899
TIME...MOT...LOC 2218Z 330DEG 7KT 4295 7875

Apffel

Special weather statement, Jul 13, 6:33 PM EDT, 56 minutes before

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Special weather statement, Jul 13, 6:35 PM EDT, 54 minutes before

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Special weather statement, Jul 13, 6:40 PM EDT, 49 minutes before

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Special weather statement, Jul 13, 7:29 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 3:31 AM EDT	Special Weather Statement	BUF	Jefferson	29 min
Jul 13, 3:54 AM EDT	Areal Flood Warning	BUF	Jefferson	3 hr
Jul 13, 4:07 AM EDT	Special Marine Warning	BUF		38 min
Jul 13, 4:09 AM EDT	Special Weather Statement	BUF	Jefferson	66 min
Jul 13, 2:22 PM EDT	Special Weather Statement	BUF	Lewis	53 min
Jul 13, 3:19 PM EDT	Special Weather Statement	BUF	Monroe	56 min
Jul 13, 3:46 PM EDT	Special Weather Statement	BUF	Lewis	59 min
Jul 13, 4:12 PM EDT	Severe Thunderstorm Warning	BUF	Ontario, Wayne	52 min
Jul 13, 4:42 PM EDT	Special Weather Statement	BUF	Genesee	33 min
Jul 13, 5:02 PM EDT	Special Weather Statement	BUF	Ontario	58 min
Jul 13, 5:05 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	55 min
Jul 13, 5:16 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	33 min
Jul 13, 5:38 PM EDT	Tornado Warning	BUF	Jefferson, Lewis	22 min
Jul 13, 5:51 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Wyoming	39 min
Jul 13, 6:00 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	35 min
Jul 13, 6:19 PM EDT	Special Weather Statement	BUF	Erie	56 min
Jul 13, 6:20 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	37 min
Jul 13, 6:33 PM EDT	Special Weather Statement	BUF	Jefferson	27 min
Jul 13, 6:35 PM EDT	Special Weather Statement	BUF	Ontario	40 min
Jul 13, 6:40 PM EDT	Special Weather Statement	BUF	Wyoming	50 min

Nearby

Special Weather Statements in New York, 2020 Every special weather statement in 2020

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.