Alert archive / Pennsylvania / Flash Flood Watches in 2011

Flash Flood Watch 7, NWS Binghamton, NY

August 14, 2011Chemung County, Steuben County, New York; Bradford County, Luzerne County, Wyoming County, Pennsylvania

NWS Binghamton, NY issued this flash flood watch at Aug 14, 2011, 1:04 PM EDT for Chemung County, Steuben County, New York; Bradford County, Luzerne County, Wyoming County, Pennsylvania. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 14, 2011, 1:04 PM EDT (17:04 UTC)
Expired
Aug 14, 2011, 5:02 PM EDT
In force
4 hr
Issued by
NWS Binghamton, NY
Flood severity
None

Counties Chemung County, NY, Steuben County, NY, Bradford County, PA, Luzerne County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 65 km from the middle of the area, began a volume at 17:08 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, 5.1 hours before the alert went out and 219 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 2011-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.1000850700500300200100-30°-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 2011-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
7058 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Aug 14, 10:33 AM EDT, 2 hours 31 minutes earlier.

Area forecast discussion, Aug 14, 10:33 AM EDT, 2 hours 31 minutes before
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Hazardous weather outlook, Aug 14, 10:35 AM EDT, 2 hours 29 minutes before
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</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>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 11:13 PM EDTAreal Flood AdvisoryBGMYates3 hr
Aug 14, 12:30 PM EDTAreal Flood AdvisoryBGMCayuga3 hr
Aug 14, 1:34 PM EDTAreal Flood AdvisoryBGMSteuben3 hr
Aug 14, 1:37 PM EDTAreal Flood AdvisoryBGMOnondaga3 hr
Aug 14, 3:47 PM EDTAreal Flood AdvisoryBGMCayuga, Seneca3 hr
Aug 14, 2:11 PM EDTAreal Flood AdvisoryBGMBradford, Luzerne, Wyoming3 hr

Nearby

Flash Flood Watches in Pennsylvania, 2011Flash Flood Watches in New York, 2011Every flash flood watch in 2011

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.