Alert archive / New York / Special Weather Statements in 2020

Special Weather Statement, NWS Buffalo, NY

July 29, 2020Genesee County, New York

NWS Buffalo, NY issued this special weather statement at Jul 29, 2020, 5:35 PM EDT for Genesee 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, 2020, 5:35 PM EDT (21:35 UTC)
Expired: Jul 29, 2020, 6:00 PM EDT
In force: 25 min
Issued by: NWS Buffalo, NY

County Genesee County, NY

The radar

The Buffalo radar (KBUF), 25 km from the middle of the area, began a volume at 21:38 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, 9.6 hours before the alert went out and 25 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: 95 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 995 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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, 37 minutes earlier.

Area forecast discussion, Jul 29, 4:58 PM EDT, 37 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jul 29, 1:27 PM EDT, 4 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service Buffalo NY
127 PM EDT Wed Jul 29 2020

NYZ001>008-010>014-019>021-085-301730-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis-
Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua-
Cattaraugus-Allegany-Southern Erie-
127 PM EDT Wed Jul 29 2020

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

.DAY ONE...This afternoon and tonight.

Scattered strong storms are expected across the region this
afternoon into early this evening. An isolated severe thunderstorm
with damaging winds cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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-SLZ022-024-301730-
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-
127 PM EDT Wed Jul 29 2020

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.

Scattered strong storms are possible across the region this afternoon
into early this evening. An isolated severe thunderstorm with damaging
winds cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

JLA

In the hours before

Special weather statement, Jul 29, 4:15 PM EDT, 1 hour 20 minutes before

Special Weather Statement
National Weather Service Buffalo NY
415 PM EDT Wed Jul 29 2020

NYZ003-292100-
Monroe-
415 PM EDT Wed Jul 29 2020

...A STRONG THUNDERSTORM WILL AFFECT MONROE COUNTY...

At 415 PM EDT, a strong thunderstorm was located near Spencerport, or
near Brockport, moving east at 25 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Brockport, East Rochester,
Webster, Fairport, Brighton, Gates-North Gates, Henrietta, Penfield,
Spencerport, Churchville, Riga, Charlotte, Pittsford, Strong Memorial
Hospital, North Chili and Rochester International Airport.

This includes the following highways...
 Interstate 390 near exit 12.
 Interstate 90 near exit 46.

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 4306 7794 4313 7791 4314 7796 4324 7797
      4329 7738 4304 7737 4304 7748 4303 7749
TIME...MOT...LOC 2015Z 268DEG 21KT 4316 7787

Fries

Local storm report, Jul 29, 4:22 PM EDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
422 PM EDT WED JUL 29 2020

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

0330 PM     TSTM WND DMG     PORTAGEVILLE            42.57N  78.04W
07/29/2020                   WYOMING            NY   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN

0352 PM     TSTM WND DMG     CONESUS                 42.72N  77.68W
07/29/2020                   LIVINGSTON         NY   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN

0355 PM     TSTM WND DMG     LIVONIA                 42.82N  77.67W
07/29/2020                   LIVINGSTON         NY   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN

&&

EVENT NUMBER BUF2000927
EVENT NUMBER BUF2000928
EVENT NUMBER BUF2000929

HITCHCOCK

Local storm report, Jul 29, 4:41 PM EDT, 54 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jul 29, 5:18 PM EDT, 17 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jul 29, 5:24 PM EDT, 11 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Jul 29, 5:35 PM EDT, 0 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 4:20 AM EDT	Small Craft Advisory	BUF		16 hr
Jul 29, 10:06 AM EDT	Special Weather Statement	BUF	Erie	54 min
Jul 29, 10:51 AM EDT	Special Weather Statement	BUF	Genesee	54 min
Jul 29, 10:55 AM EDT	Special Marine Warning	BUF		23 min
Jul 29, 11:35 AM EDT	Special Weather Statement	BUF	Livingston	55 min
Jul 29, 11:51 AM EDT	Special Weather Statement	BUF	Wyoming	54 min
Jul 29, 12:21 PM EDT	Special Weather Statement	BUF	Wyoming	39 min
Jul 29, 12:26 PM EDT	Special Weather Statement	BUF	Ontario	34 min
Jul 29, 1:09 PM EDT	Special Weather Statement	BUF	Livingston	36 min
Jul 29, 1:19 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	41 min
Jul 29, 1:28 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	62 min
Jul 29, 1:48 PM EDT	Special Marine Warning	BUF		42 min
Jul 29, 2:10 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	65 min
Jul 29, 2:13 PM EDT	Special Weather Statement	BUF	Erie	32 min
Jul 29, 2:25 PM EDT	Special Marine Warning	BUF		50 min
Jul 29, 2:49 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Livingston, Wyoming	56 min
Jul 29, 2:53 PM EDT	Special Weather Statement	BUF	Erie, Wyoming	52 min
Jul 29, 3:27 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Wyoming	48 min
Jul 29, 3:41 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	64 min
Jul 29, 3:45 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	45 min
Jul 29, 4:15 PM EDT	Special Weather Statement	BUF	Monroe	45 min
Jul 29, 4:20 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	40 min
Jul 29, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	38 min
Jul 29, 4:56 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	64 min
Jul 29, 5:42 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Orleans	48 min
Jul 29, 6:34 PM EDT	Special Weather Statement	BUF	Livingston	26 min
Jul 29, 6:37 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario	51 min
Jul 29, 6:41 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Orleans	34 min
Jul 29, 6:50 PM EDT	Tornado Warning	BUF	Livingston, Monroe, Ontario	28 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.