Alert archive / New York / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 147, NWS Albany, NY

August 17, 2019Albany County, Schenectady County, Schoharie County, New York

NWS Albany, NY issued this severe thunderstorm warning at Aug 17, 2019, 5:05 PM EDT for Albany County, Schenectady County, Schoharie County, New York. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 17, 2019, 5:05 PM EDT (21:05 UTC)
Expired: Aug 17, 2019, 6:00 PM EDT
In force: 55 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Albany County, NY, Schenectady County, NY, Schoharie County, NY

The radar

The Albany radar (KENX), 12 km from the middle of the area, began a volume at 21:09 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, 9.1 hours before the alert went out and 27 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: 149 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Albany, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 17, 4:07 PM EDT, 58 minutes earlier.

Area forecast discussion, Aug 17, 4:07 PM EDT, 58 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, Aug 17, 4:22 PM EDT, 43 minutes before

Hazardous Weather Outlook
National Weather Service Albany NY
422 PM EDT Sat Aug 17 2019

CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066-
082>084-VTZ013>015-181100-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Herkimer-Hamilton-Southern Herkimer-
Southern Fulton-Montgomery-Northern Saratoga-Northern Warren-
Northern Washington-Schoharie-Western Schenectady-
Eastern Schenectady-Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-Eastern Greene-
Western Columbia-Eastern Columbia-Western Ulster-Eastern Ulster-
Western Dutchess-Eastern Dutchess-Northern Fulton-Southeast Warren-
Southern Washington-Bennington-Western Windham-Eastern Windham-
422 PM EDT Sat Aug 17 2019

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, east central New York, eastern New York and
southern Vermont.

.DAY ONE...Tonight.
There is a slight risk of thunderstorms this evening, producing
damaging winds of 58 mph or greater and or large hail quarter size or
greater. Some locally heavy rainfall may also cause flooding of low
lying areas and ponding of water on roads.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a chance of thunderstorms each day Sunday through
Wednesday, mainly during the afternoon and evening hours. Any
thunderstorm will be capable of locally heavy rainfall which may lead
to water ponding on roadways and poor drainage flooding in low lying
areas.

The combination of heat and high humidity may allow heat index
values to approach or exceed heat advisory levels during the
afternoon hours Monday and Tuesday in the Hudson Valley.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 17, 3:58 PM EDT, 1 hour 7 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, Aug 17, 4:19 PM EDT, 46 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, Aug 17, 4:24 PM EDT, 41 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, Aug 17, 4:25 PM EDT, 40 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, Aug 17, 4:36 PM EDT, 29 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, Aug 17, 5:00 PM EDT, 5 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 Albany, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 16, 8:39 PM EDT	Special Weather Statement	ALY	Otsego	36 min
Aug 16, 9:11 PM EDT	Special Weather Statement	ALY	Oneida	49 min
Aug 16, 9:25 PM EDT	Special Weather Statement	ALY	Oneida	35 min
Aug 16, 9:44 PM EDT	Special Weather Statement	ALY	Schoharie	46 min
Aug 16, 10:25 PM EDT	Special Weather Statement	ALY	Schoharie	50 min
Aug 16, 10:56 PM EDT	Special Weather Statement	ALY	Oneida	34 min
Aug 17, 12:32 AM EDT	Special Weather Statement	ALY	Fulton	58 min
Aug 17, 2:07 PM EDT	Areal Flood Advisory	ALY	Schenectady	2 hr
Aug 17, 2:19 PM EDT	Special Weather Statement	ALY	Herkimer	26 min
Aug 17, 2:33 PM EDT	Flash Flood Warning	ALY	Schenectady	96 min
Aug 17, 2:36 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Schenectady	54 min
Aug 17, 2:38 PM EDT	Special Weather Statement	ALY	Saratoga	37 min
Aug 17, 2:45 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga	46 min
Aug 17, 3:05 PM EDT	Special Weather Statement	ALY	Hamilton	25 min
Aug 17, 3:11 PM EDT	Special Weather Statement	ALY	Oneida	34 min
Aug 17, 3:16 PM EDT	Areal Flood Advisory	ALY	Saratoga	52 min
Aug 17, 3:26 PM EDT	Areal Flood Advisory	ALY	Fulton, Hamilton, Herkimer	3 hr
Aug 17, 3:38 PM EDT	Flash Flood Warning	ALY	Herkimer	3 hr
Aug 17, 3:58 PM EDT	Special Weather Statement	ALY	Hamilton	32 min
Aug 17, 4:02 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Hamilton, Saratoga, Warren	58 min
Aug 17, 4:17 PM EDT	Areal Flood Advisory	ALY	Hamilton, Warren	2 hr
Aug 17, 4:19 PM EDT	Special Weather Statement	ALY	Montgomery	26 min
Aug 17, 4:24 PM EDT	Special Weather Statement	ALY	Saratoga	36 min
Aug 17, 4:25 PM EDT	Special Weather Statement	ALY	Warren	35 min
Aug 17, 4:29 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga	61 min
Aug 17, 4:36 PM EDT	Special Weather Statement	ALY	Fulton	24 min
Aug 17, 4:47 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Montgomery, Saratoga, Schenectady, Schoharie	58 min
Aug 17, 4:55 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga, Warren, Washington	65 min
Aug 17, 5:15 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Saratoga, Schenectady	60 min
Aug 17, 5:34 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga, Schenectady, Washington	56 min
Aug 17, 5:51 PM EDT	Special Weather Statement	ALY	Schoharie	24 min
Aug 17, 5:55 PM EDT	Special Weather Statement	ALY	Albany	35 min
Aug 17, 6:03 PM EDT	Special Weather Statement	ALY	Albany	27 min
Aug 17, 6:09 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	66 min
Aug 17, 6:24 PM EDT	Special Weather Statement	ALY	Greene	36 min
Aug 17, 6:31 PM EDT	Special Weather Statement	ALY	Columbia, Rensselaer	44 min
Aug 17, 7:32 PM EDT	Areal Flood Advisory	ALY	Columbia, Dutchess, Greene, Ulster	118 min
Aug 17, 7:48 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Ulster	57 min

Nearby

Severe Thunderstorm Warnings in New York, 2019 Every severe thunderstorm warning 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.