Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 157, NWS Hastings, NE

June 30, 2018Fillmore County, York County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 30, 2018, 6:23 PM CDT for Fillmore County, York County, Nebraska. It was in force for 21 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: Jun 30, 2018, 6:23 PM CDT (23:23 UTC)
Expired: Jun 30, 2018, 6:44 PM CDT
In force: 21 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Fillmore County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 23:24 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
Jun 30, 3:26 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.4 hours before the alert went out and 124 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: 2420 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 962 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.2

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 Jun 30, 6:21 PM CDT, 2 minutes earlier.

Area forecast discussion, Jun 30, 6:21 PM CDT, 2 minutes before

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Hazardous weather outlook, Jun 30, 3:39 PM CDT, 2 hours 44 minutes before

Hazardous Weather Outlook
National Weather Service Hastings NE
339 PM CDT Sat Jun 30 2018

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
011200-
Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance-
Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York-
Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin-
Webster-Nuckolls-Thayer-
339 PM CDT Sat Jun 30 2018

This Hazardous Weather Outlook is for south central Nebraska and
portions of north central Kansas.

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible through tonight. Thunderstorms are
developing along a front this afternoon. Severe thunderstorms are
possible with this activity with gusty winds to 60 mph and hail
to golf-ball size. A tornado or two are possible. Additional
thunderstorms will move into the area later this evening. Locally
heavy rainfall could cause some localized flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There are additional chances for thunderstorms Monday night and
scattered chances again Thursday and Friday.

Heat will be on the increase again next week, with afternoon and
early evening heat index values reaching 100 degrees in parts of
the area Tuesday through Thursday, including Independence Day.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is expected through the evening.

&&

More information may be obtained at the following web page:
   https://www.weather.gov/hastings

In the hours before

Special weather statement, Jun 30, 5:03 PM CDT, 1 hour 20 minutes before

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Local storm report, Jun 30, 5:29 PM CDT, 54 minutes before

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Special weather statement, Jun 30, 5:33 PM CDT, 50 minutes before

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Local storm report, Jun 30, 6:05 PM CDT, 18 minutes before

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Special weather statement, Jun 30, 6:18 PM CDT, 5 minutes before

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Local storm report, Jun 30, 6:21 PM CDT, 2 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 10:58 PM CDT	Special Weather Statement	GID	Furnas	32 min
Jun 30, 4:01 AM CDT	Special Weather Statement	GID	Gosper, Phelps	44 min
Jun 30, 2:38 PM CDT	Special Weather Statement	GID	Gosper	37 min
Jun 30, 2:39 PM CDT	Special Weather Statement	GID	Phelps	51 min
Jun 30, 2:41 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper	34 min
Jun 30, 2:43 PM CDT	Severe Thunderstorm Warning	GID	Harlan, Phelps	32 min
Jun 30, 3:06 PM CDT	Tornado Warning	GID	Furnas, Gosper	24 min
Jun 30, 3:13 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper, Harlan, Phelps	32 min
Jun 30, 3:27 PM CDT	Tornado Warning	GID	Harlan, Phelps	33 min
Jun 30, 3:42 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper, Phelps	33 min
Jun 30, 3:52 PM CDT	Severe Thunderstorm Warning	GID	Kearney, Phelps	38 min
Jun 30, 3:54 PM CDT	Tornado Warning	GID	Kearney, Phelps	36 min
Jun 30, 4:10 PM CDT	Severe Thunderstorm Warning	GID	Phelps	35 min
Jun 30, 4:24 PM CDT	Tornado Warning	GID	Kearney	36 min
Jun 30, 4:26 PM CDT	Severe Thunderstorm Warning	GID	Kearney, Phelps	34 min
Jun 30, 4:36 PM CDT	Severe Thunderstorm Warning	GID	Phelps	24 min
Jun 30, 4:57 PM CDT	Severe Thunderstorm Warning	GID	Adams, Kearney	33 min
Jun 30, 5:00 PM CDT	Special Weather Statement	GID	Phelps	30 min
Jun 30, 5:03 PM CDT	Special Weather Statement	GID	Fillmore	27 min
Jun 30, 5:23 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Kearney, Webster	37 min
Jun 30, 5:33 PM CDT	Special Weather Statement	GID	Fillmore	42 min
Jun 30, 5:36 PM CDT	Severe Thunderstorm Warning	GID	Fillmore	24 min
Jun 30, 5:49 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Nuckolls, Webster	26 min
Jun 30, 6:10 PM CDT	Severe Thunderstorm Warning	GID	Clay, Nuckolls	50 min
Jun 30, 6:18 PM CDT	Special Weather Statement	GID	Polk, York	42 min
Jun 29, 11:29 PM CDT	Special Weather Statement	GID	Phillips	46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018 Every severe thunderstorm warning in 2018

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.