Alert archive / Nebraska / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 249, NWS Hastings, NE

September 9, 2015Howard County, Merrick County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Sep 9, 2015, 9:56 PM CDT for Howard County, Merrick County, Nebraska. It was in force for 34 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
Sep 9, 2015, 9:56 PM CDT (02:56 UTC)
Expired
Sep 9, 2015, 10:30 PM CDT
In force
34 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Howard County, NE, Merrick County, NE

The radar

The Grand Island radar (KUEX), 98 km from the middle of the area, began a volume at 02:59 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

Omaha, NE (KOAX), launched 00:00Z, 2.9 hours before the alert went out and 160 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, Omaha, NE at 00:00Z on 2015-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 675 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, Omaha, NE at 00:00Z on 2015-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.193958Sfc1 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
675 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1306 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 9, 6:27 PM CDT, 3 hours 29 minutes earlier.

Area forecast discussion, Sep 9, 6:27 PM CDT, 3 hours 29 minutes before
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Hazardous weather outlook, Sep 9, 9:56 PM CDT, 0 minutes before
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In the hours before

Special weather statement, Sep 9, 8:44 PM CDT, 1 hour 12 minutes before
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Local storm report, Sep 9, 8:48 PM CDT, 1 hour 8 minutes before
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Special weather statement, Sep 9, 9:10 PM CDT, 46 minutes before
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Local storm report, Sep 9, 9:36 PM CDT, 20 minutes before
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Special weather statement, Sep 9, 9:43 PM CDT, 13 minutes before
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Special weather statement, Sep 9, 9:44 PM CDT, 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 7:07 PM CDTAreal Flood AdvisoryGIDHoward, Sherman, Valley6 hr
Sep 9, 7:09 PM CDTSpecial Weather StatementGIDHoward36 min
Sep 9, 7:19 PM CDTSpecial Weather StatementGIDNance26 min
Sep 9, 7:24 PM CDTSevere Thunderstorm WarningGIDHall, Howard, Merrick33 min
Sep 9, 7:53 PM CDTSevere Thunderstorm WarningGIDHall, Hamilton, Howard, Merrick37 min
Sep 9, 8:12 PM CDTSpecial Weather StatementGIDPolk33 min
Sep 9, 8:15 PM CDTSpecial Weather StatementGIDValley30 min
Sep 9, 8:28 PM CDTSevere Thunderstorm WarningGIDClay, Hamilton32 min
Sep 9, 8:42 PM CDTSpecial Weather StatementGIDHoward33 min
Sep 9, 8:44 PM CDTSpecial Weather StatementGIDYork31 min
Sep 9, 8:55 PM CDTSevere Thunderstorm WarningGIDClay, Fillmore, Hamilton, York50 min
Sep 9, 9:10 PM CDTSpecial Weather StatementGIDHoward35 min
Sep 9, 9:43 PM CDTSpecial Weather StatementGIDFillmore32 min
Sep 9, 9:44 PM CDTSpecial Weather StatementGIDHoward31 min
Sep 9, 10:23 PM CDTSevere Thunderstorm WarningGIDHall, Howard, Merrick37 min
Sep 9, 10:40 PM CDTSevere Thunderstorm WarningGIDHall, Hamilton, Merrick35 min
Sep 9, 10:41 PM CDTAreal Flood AdvisoryGIDGreeley, Howard, Sherman, Valley12 hr
Sep 9, 11:04 PM CDTAreal Flood AdvisoryGIDHamilton, Merrick, York7 hr
Sep 9, 11:15 PM CDTSevere Thunderstorm WarningGIDClay, Fillmore, Hamilton, York30 min
Sep 9, 11:31 PM CDTSpecial Weather StatementGIDMerrick29 min
Sep 9, 11:42 PM CDTSevere Thunderstorm WarningGIDClay, Fillmore, Nuckolls, Thayer48 min
Sep 10, 12:28 AM CDTSevere Thunderstorm WarningGIDFillmore, Thayer47 min
Sep 10, 1:09 AM CDTSpecial Weather StatementGIDFillmore51 min
Sep 10, 1:55 PM CDTSpecial Weather StatementGIDNuckolls20 min
Sep 10, 2:04 PM CDTSpecial Weather StatementGIDSherman26 min
Sep 10, 2:12 PM CDTSpecial Weather StatementGIDNuckolls18 min
Sep 10, 2:18 PM CDTSevere Thunderstorm WarningGIDNuckolls, Thayer15 min
Sep 10, 3:49 PM CDTSpecial Weather StatementGIDWebster41 min
Sep 10, 4:13 PM CDTSpecial Weather StatementGIDClay32 min
Sep 10, 4:18 PM CDTSevere Thunderstorm WarningGIDNuckolls42 min
Sep 10, 4:33 PM CDTSevere Thunderstorm WarningGIDDawson42 min
Sep 10, 4:38 PM CDTSevere Thunderstorm WarningGIDBuffalo35 min
Sep 10, 4:42 PM CDTSpecial Weather StatementGIDFillmore33 min
Sep 10, 4:49 PM CDTSpecial Weather StatementGIDHall26 min
Sep 10, 5:01 PM CDTSpecial Weather StatementGIDAdams29 min
Sep 10, 5:04 PM CDTSevere Thunderstorm WarningGIDFillmore, Thayer41 min
Sep 10, 5:08 PM CDTSpecial Weather StatementGIDKearney37 min
Sep 10, 5:21 PM CDTSevere Thunderstorm WarningGIDFurnas39 min
Sep 10, 5:24 PM CDTSevere Thunderstorm WarningGIDThayer51 min
Sep 10, 5:26 PM CDTSpecial Weather StatementGIDClay34 min
Sep 10, 5:28 PM CDTSpecial Weather StatementGIDAdams32 min
Sep 10, 5:48 PM CDTSpecial Weather StatementGIDNuckolls, Webster27 min
Sep 10, 5:58 PM CDTSevere Thunderstorm WarningGIDWebster47 min
Sep 10, 6:03 PM CDTSevere Thunderstorm WarningGIDFranklin, Harlan42 min
Sep 10, 6:16 PM CDTSevere Thunderstorm WarningGIDNuckolls, Thayer44 min
Sep 10, 6:57 PM CDTSevere Thunderstorm WarningGIDThayer15 min
Sep 10, 12:24 PM CDTSpecial Weather StatementGIDMitchell36 min
Sep 10, 12:35 PM CDTSevere Thunderstorm WarningGIDMitchell25 min
Sep 10, 3:58 PM CDTSpecial Weather StatementGIDPhillips17 min
Sep 10, 4:08 PM CDTSevere Thunderstorm WarningGIDPhillips22 min
Sep 10, 4:29 PM CDTSevere Thunderstorm WarningGIDPhillips, Rooks46 min
Sep 10, 5:14 PM CDTSevere Thunderstorm WarningGIDOsborne, Phillips, Rooks46 min
Sep 10, 5:31 PM CDTSevere Thunderstorm WarningGIDOsborne, Rooks44 min
Sep 10, 6:10 PM CDTSevere Thunderstorm WarningGIDPhillips50 min
Sep 10, 6:15 PM CDTSevere Thunderstorm WarningGIDOsborne30 min
Sep 10, 6:27 PM CDTSevere Thunderstorm WarningGIDJewell, Smith48 min
Sep 10, 6:28 PM CDTSevere Thunderstorm WarningGIDPhillips, Rooks47 min
Sep 10, 6:48 PM CDTSevere Thunderstorm WarningGIDPhillips, Rooks27 min
Sep 10, 6:51 PM CDTSevere Thunderstorm WarningGIDJewell39 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2015Every severe thunderstorm warning in 2015

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.