Alert archive / New York / Tornado Warnings in 2010

Tornado Warning 10, NWS Binghamton, NY

July 21, 2010Delaware County, Sullivan County, New York; Wayne County, Pennsylvania

NWS Binghamton, NY issued this tornado warning at Jul 21, 2010, 3:10 PM EDT for Delaware County, Sullivan County, New York; Wayne County, Pennsylvania. It was in force for 35 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: Jul 21, 2010, 3:10 PM EDT (19:10 UTC)
Expired: Jul 21, 2010, 3:45 PM EDT
In force: 35 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon

Counties Delaware County, NY, Sullivan County, NY, Wayne County, PA

The radar

The Binghamton radar (KBGM), 89 km from the middle of the area, began a volume at 19:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 21, 11:27 AM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.2 hours before the alert went out and 135 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: 146 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 945 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 104 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 tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Binghamton, NY wrote its last area forecast discussion before this tornado warning went out at Jul 21, 2:52 PM EDT, 18 minutes earlier.

Area forecast discussion, Jul 21, 2:52 PM EDT, 18 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 21, 11:48 AM EDT, 3 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BINGHAMTON NY
1148 AM EDT WED JUL 21 2010

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-221600-
NORTHERN ONEIDA-YATES-SENECA-SOUTHERN CAYUGA-ONONDAGA-STEUBEN-
SCHUYLER-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA-CORTLAND-CHENANGO-
OTSEGO-TIOGA-BROOME-DELAWARE-SULLIVAN-BRADFORD-SUSQUEHANNA-
NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE-SOUTHERN WAYNE-
1148 AM EDT WED JUL 21 2010

...SEVERE THUNDERSTORM WATCH 507 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW
YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA.

.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.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jul 21, 2:24 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>

Local storm report, Jul 21, 2:28 PM EDT, 42 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 21, 2:32 PM EDT, 38 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 21, 2:53 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 21, 2:55 PM EDT, 15 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 21, 3:05 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 Binghamton, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 11:35 AM EDT	Special Weather Statement	BGM	Yates	55 min
Jul 21, 11:56 AM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Schuyler, Seneca, Tompkins, Yates	64 min
Jul 21, 12:14 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga, Seneca	61 min
Jul 21, 12:34 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga, Tompkins	56 min
Jul 21, 12:58 PM EDT	Special Weather Statement	BGM	Broome	47 min
Jul 21, 1:05 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Delaware	40 min
Jul 21, 1:10 PM EDT	Severe Thunderstorm Warning	BGM	Cortland, Madison, Onondaga	50 min
Jul 21, 1:28 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Delaware, Otsego	62 min
Jul 21, 1:42 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	48 min
Jul 21, 1:53 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Madison	34 min
Jul 21, 1:57 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Seneca	48 min
Jul 21, 2:06 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Sullivan	54 min
Jul 21, 2:30 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Sullivan	45 min
Jul 21, 2:40 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Cortland, Seneca, Tompkins	50 min
Jul 21, 2:43 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Sullivan	50 min
Jul 21, 3:28 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga, Tompkins	47 min
Jul 21, 3:37 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	38 min
Jul 21, 4:13 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Delaware, Otsego, Sullivan	62 min
Jul 21, 4:14 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	16 min
Jul 21, 4:20 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Tioga, Tompkins	55 min
Jul 21, 4:25 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	65 min
Jul 21, 5:06 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Delaware, Sullivan	54 min
Jul 21, 5:33 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	26 min
Jul 21, 6:00 PM EDT	Special Weather Statement	BGM	Sullivan	30 min
Jul 21, 6:07 PM EDT	Special Weather Statement	BGM	Chenango	53 min
Jul 21, 6:09 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga, Tompkins	41 min
Jul 21, 7:05 PM EDT	Special Weather Statement	BGM	Madison	55 min
Jul 21, 7:22 PM EDT	Special Weather Statement	BGM	Oneida	53 min
Jul 21, 7:35 PM EDT	Severe Thunderstorm Warning	BGM	Oneida	25 min
Jul 21, 12:19 PM EDT	Special Weather Statement	BGM	Susquehanna	56 min
Jul 21, 12:46 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Susquehanna, Wyoming	21 min
Jul 21, 1:36 PM EDT	Special Weather Statement	BGM	Lackawanna	39 min
Jul 21, 1:48 PM EDT	Tornado Warning	BGM	Lackawanna, Pike, Wayne	42 min
Jul 21, 2:32 PM EDT	Special Weather Statement	BGM	Pike	58 min
Jul 21, 6:54 PM EDT	Special Weather Statement	BGM	Susquehanna	66 min

Nearby

Tornado Warnings in New York, 2010 Tornado Warnings in Pennsylvania, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.