Alert archive / New York / Special Weather Statements in 2019

Special Weather Statement, NWS Buffalo, NY

July 5, 2019Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Jul 5, 2019, 12:36 PM EDT for Chautauqua 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
Jul 5, 2019, 12:36 PM EDT (16:36 UTC)
Expired
Jul 5, 2019, 1:30 PM EDT
In force
54 min
Issued by
NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 76 km from the middle of the area, began a volume at 16:36 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, 4.6 hours before the alert went out and 76 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, Buffalo Intl Airport, NY at 12:00Z on 2019-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 232 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, Buffalo Intl Airport, NY at 12:00Z on 2019-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
232 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
899 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 5, 11:10 AM EDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jul 5, 11:10 AM EDT, 1 hour 26 minutes before
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Hazardous weather outlook, Jul 5, 11:15 AM EDT, 1 hour 21 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
1115 AM EDT Fri Jul 5 2019

NYZ006>008-010-012-014-019>021-085-061515-
Oswego-Jefferson-Lewis-Northern Erie-Wyoming-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
1115 AM EDT Fri Jul 5 2019

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

.DAY ONE...This afternoon and tonight.

Heat index values will again climb into the upper 80s and lower 90s
today. If you are planning to be outdoors, be sure to stay hydrated
and take frequent breaks in the shade or inside if possible.

In addition, there will also be a risk for slow moving thunderstorms
that could produce very heavy rainfall in localized areas today.

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

There will again be a risk for slow moving thunderstorms and locally
heavy rainfall on Saturday.

.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>004-061515-
Niagara-Orleans-Monroe-Wayne-
1115 AM EDT Fri Jul 5 2019

...HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...LAKESHORE FLOOD WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY AFTERNOON...

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

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

In addition, there will also be a risk for slow moving thunderstorms
that could produce very heavy rainfall in localized areas today.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Lakeshore Flood Watch.

There will again be a risk for slow moving thunderstorms and locally
heavy rainfall on Saturday.

.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

NYZ005-011-013-061515-
Northern Cayuga-Genesee-Livingston-
1115 AM EDT Fri Jul 5 2019

...HEAT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

In addition, there will also be a risk for slow moving thunderstorms
that could produce very heavy rainfall in localized areas today.

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

There will again be a risk for slow moving thunderstorms and locally
heavy rainfall on Saturday.

In the wake of a cold front, northeasterly winds will increase
across
eastern Lake Ontario Saturday night, and could become marginally
strong
enough to result in a briefly increased risk for lakeshore flooding
along the southeastern shore of the lake late Saturday night and
early Sunday.

.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-SLZ022-024-061515-
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-
1115 AM EDT Fri Jul 5 2019

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

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

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

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

Hitchcock

In the hours before

Local storm report, Jul 5, 7:56 AM EDT, 4 hours 40 minutes before
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Special weather statement, Jul 5, 12:36 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Buffalo NY
1236 PM EDT Fri Jul 5 2019

NYZ019-020-085-051730-
Chautauqua-Cattaraugus-Southern Erie-
1236 PM EDT Fri Jul 5 2019

...THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL AFFECT NORTHWESTERN
CATTARAUGUS...SOUTHERN ERIE AND CHAUTAUQUA COUNTIES...

At 1234 PM EDT, an area of scattered thunderstorms was located from
near Sherman to Chautauqua Lake, Gowanda, and Boston, moving
northeast at 15 mph. These thunderstorms will continue to produce
brief, torrential downpours which will result in ponding of water in
poor drainage areas.

Locations impacted include...
Fredonia, Boston, Eden, Colden, Westfield, Lakewood, Gowanda,
Mayville, Clymer, North Collins, Long Point State Park, Findley Lake,
Chautauqua Institute, North Boston, Jamestown West, Chautauqua,
Concord, Collins, Holland and Stockton.

This includes Interstate 86 between exits 4 and 11.

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

LAT...LON 4222 7976 4270 7879 4269 7847 4268 7848
      4200 7942 4200 7976
TIME...MOT...LOC 1634Z 229DEG 13KT 4232 7922

Hitchcock

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 4:21 AM EDTHeat AdvisoryBUFCayuga, Genesee, Livingston, Monroe, Niagara, Orleans and 1 more14 hr
Jul 5, 11:05 AM EDTLakeshore Flood WatchBUFMonroe, Niagara, Orleans, Wayne22 hr
Jul 5, 1:23 PM EDTSpecial Weather StatementBUFMonroe52 min
Jul 5, 1:41 PM EDTSpecial Weather StatementBUFChautauqua64 min
Jul 5, 2:17 PM EDTSpecial Weather StatementBUFMonroe, Wayne58 min
Jul 5, 2:44 PM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua61 min
Jul 5, 2:56 PM EDTFlash Flood WarningBUFLivingston, Monroe, Ontario, Wayne101 min
Jul 5, 3:00 PM EDTFlash Flood WarningBUFCattaraugus, Chautauqua2 hr
Jul 5, 4:10 PM EDTSpecial Weather StatementBUFOntario35 min
Jul 5, 5:00 PM EDTSpecial Weather StatementBUFOrleans45 min
Jul 5, 5:09 PM EDTSpecial Weather StatementBUFLewis36 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.