Alert archive / Nebraska / Flash Flood Watches in 2010

Flash Flood Watch 4, NWS North Platte, NE

June 22, 20105 counties in Nebraska

NWS North Platte, NE issued this flash flood watch at Jun 22, 2010, 2:08 PM MDT for 5 counties in Nebraska. It took effect at Jun 22, 2010, 6:00 PM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 22, 2010, 2:08 PM MDT (20:08 UTC)
In effect from
Jun 22, 2010, 6:00 PM MDT
Expired
Jun 23, 2010, 2:35 AM MDT
In force
9 hr
Issued by
NWS North Platte, NE
Flood severity
None

Counties Chase County, NE, Frontier County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 147 km from the middle of the area, began a volume at 20:12 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.1 hours before the alert went out and 202 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, Denver, CO at 12:00Z on 2010-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2010-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897Sfc1 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
2264 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
142 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 North Platte, NE wrote its last area forecast discussion before this flash flood watch went out at Jun 22, 2:06 PM MDT, 2 minutes earlier.

Area forecast discussion, Jun 22, 2:06 PM MDT, 2 minutes before
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Hazardous weather outlook, Jun 22, 4:41 AM MDT, 9 hours 27 minutes before
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<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.
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The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 22, 2:24 AM MDTSevere Thunderstorm WarningLBFLincoln51 min
Jun 22, 3:11 AM MDTAreal Flood AdvisoryLBFCuster, Lincoln4 hr
Jun 22, 11:15 AM MDTAreal Flood WarningLBFHayes6 hr
Jun 22, 12:34 PM MDTRiver Flood WarningLBFGarden, Keith3 days
Jun 22, 5:36 PM MDTSevere Thunderstorm WarningLBFSheridan39 min

Nearby

Flash Flood Watches in Nebraska, 2010Every flash flood watch 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.