Alert archive / New York / Flash Flood Watches in 2017

Flash Flood Watch 6, NWS Binghamton, NY

July 12, 201717 counties in New York; 7 counties in Pennsylvania

NWS Binghamton, NY issued this flash flood watch at Jul 12, 2017, 11:00 AM EDT for 17 counties in New York; 7 counties in Pennsylvania. It was in force for 60 hr.

The area

The counties it named.

The facts

Issued: Jul 12, 2017, 11:00 AM EDT (15:00 UTC)
Expired: Jul 14, 2017, 11:00 PM EDT
In force: 60 hr
Issued by: NWS Binghamton, NY
Flood severity: None

All 24 counties

Broome County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Delaware County, NY, Madison County, NY, Oneida County, NY, Onondaga County, NY, Otsego County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Sullivan County, NY, Tioga County, NY, Tompkins County, NY, Yates County, NY, Bradford County, PA, Lackawanna County, PA, Luzerne County, PA, Pike County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 4 km from the middle of the area, began a volume at 15:03 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, 3.0 hours before the alert went out and 186 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: 305 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 843 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Jul 12, 6:40 AM EDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jul 12, 6:40 AM EDT, 4 hours 20 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 12, 8:57 AM EDT, 2 hours 3 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>

In the hours before

Special weather statement, Jul 12, 10:41 AM EDT, 19 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 12, 9:00 AM EDT	Areal Flood Advisory	BGM	Chemung, Schuyler, Seneca, Steuben, Yates	3 hr
Jul 12, 10:41 AM EDT	Special Weather Statement	BGM	Broome, Cayuga, Chenango, Cortland, Madison, Onondaga and 2 more	94 min
Jul 12, 12:11 PM EDT	Areal Flood Advisory	BGM	Broome, Chenango, Cortland, Delaware, Otsego	109 min
Jul 12, 1:59 PM EDT	Areal Flood Advisory	BGM	Delaware	2 hr
Jul 12, 2:31 PM EDT	Areal Flood Advisory	BGM	Delaware	119 min
Jul 12, 6:26 PM EDT	Special Weather Statement	BGM	Broome	34 min
Jul 12, 6:38 PM EDT	Areal Flood Advisory	BGM	Onondaga	112 min
Jul 12, 6:51 PM EDT	Areal Flood Advisory	BGM	Chenango, Madison	3 hr
Jul 12, 6:59 PM EDT	Special Weather Statement	BGM	Broome	31 min
Jul 12, 7:31 PM EDT	Special Weather Statement	BGM	Chenango	44 min

Nearby

Flash Flood Watches in New York, 2017 Flash Flood Watches in Pennsylvania, 2017 Every flash flood watch in 2017

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.