Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 163, NWS Hastings, NE

July 1, 20185 counties in Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 1, 2018, 12:06 AM CDT for 5 counties in Nebraska. It was in force for 39 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: Jul 1, 2018, 12:06 AM CDT (05:06 UTC)
Expired: Jul 1, 2018, 12:45 AM CDT
In force: 39 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Fillmore County, NE, Merrick County, NE, Polk County, NE, Thayer County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 05:10 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, 5.1 hours before the alert went out and 125 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: 2827 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 15.5

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, 5 hours 45 minutes earlier.

Area forecast discussion, Jun 30, 6:21 PM CDT, 5 hours 45 minutes before

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Hazardous weather outlook, Jun 30, 3:39 PM CDT, 8 hours 27 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, 6:18 PM CDT, 5 hours 48 minutes before

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Local storm report, Jun 30, 6:21 PM CDT, 5 hours 45 minutes before

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Local storm report, Jun 30, 6:25 PM CDT, 5 hours 41 minutes before

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Local storm report, Jun 30, 6:26 PM CDT, 5 hours 40 minutes before

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Local storm report, Jun 30, 6:32 PM CDT, 5 hours 34 minutes before

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Local storm report, Jun 30, 6:59 PM CDT, 5 hours 7 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 30, 7:00 PM CDT	Special Weather Statement	GID	Polk, York	45 min
Jun 30, 7:02 PM CDT	Special Weather Statement	GID	Fillmore	43 min
Jun 30, 8:16 PM CDT	Special Weather Statement	GID	Dawson	44 min
Jun 30, 9:24 PM CDT	Special Weather Statement	GID	Dawson, Furnas, Gosper, Phelps	51 min
Jun 30, 9:40 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Dawson, Sherman	50 min
Jun 30, 9:44 PM CDT	Special Weather Statement	GID	Valley	31 min
Jun 30, 10:04 PM CDT	Special Weather Statement	GID	Harlan, Phelps	41 min
Jun 30, 10:17 PM CDT	Special Weather Statement	GID	Greeley	43 min
Jun 30, 10:25 PM CDT	Special Weather Statement	GID	Adams, Buffalo, Hall, Howard, Kearney	50 min
Jun 30, 10:45 PM CDT	Special Weather Statement	GID	Franklin, Webster	45 min
Jun 30, 11:06 PM CDT	Special Weather Statement	GID	Adams, Clay, Hamilton, Merrick, Nuckolls, Polk and 2 more	39 min
Jun 30, 11:25 PM CDT	Areal Flood Advisory	GID	Adams	3 hr
Jun 30, 11:38 PM CDT	Special Weather Statement	GID	Clay, Fillmore, Hamilton, Nance, Nuckolls, Polk and 2 more	52 min
Jul 1, 12:01 AM CDT	Areal Flood Advisory	GID	Buffalo, Hall	3 hr
Jul 1, 12:30 AM CDT	Areal Flood Advisory	GID	Clay, Fillmore, Hamilton, Polk, York	3 hr
Jun 30, 8:12 PM CDT	Special Weather Statement	GID	Rooks	48 min
Jun 30, 8:43 PM CDT	Severe Thunderstorm Warning	GID	Rooks	47 min
Jun 30, 9:28 PM CDT	Severe Thunderstorm Warning	GID	Rooks	47 min
Jun 30, 9:55 PM CDT	Severe Thunderstorm Warning	GID	Osborne, Rooks	50 min
Jun 30, 11:26 PM CDT	Severe Thunderstorm Warning	GID	Mitchell, Osborne	49 min
Jul 1, 12:18 AM CDT	Special Weather Statement	GID	Mitchell	42 min
Jul 1, 1:44 AM CDT	Areal Flood Warning	GID	Rooks	31 hr
Jul 1, 9:29 AM CDT	River Flood Warning	GID	Phillips, Rooks	12 hr

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.