Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 111, NWS Hastings, NE

June 9, 20184 counties in Nebraska; Jewell County, Kansas

NWS Hastings, NE issued this severe thunderstorm warning at Jun 9, 2018, 3:00 AM CDT for 4 counties in Nebraska; Jewell County, Kansas. It was in force for 30 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 9, 2018, 3:00 AM CDT (08:00 UTC)
Expired
Jun 9, 2018, 3:30 AM CDT
In force
30 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Jewell County, KS, Clay County, NE, Fillmore County, NE, Nuckolls County, NE, Thayer County, NE

The radar

The Grand Island radar (KUEX), 47 km from the middle of the area, began a volume at 08:01 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, 8.0 hours before the alert went out and 176 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 2018-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2133 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 2018-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
2133 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1659 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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 9, 12:20 AM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jun 9, 12:20 AM CDT, 2 hours 40 minutes before
Area Forecast Discussion
National Weather Service Hastings NE
1220 AM CDT Sat Jun 9 2018

.SHORT TERM...(This evening through Sunday)
Issued at 354 PM CDT Fri Jun 8 2018

The main forecast concern is the chances for thunderstorms this
evening and overnight. An upper level disturbance will move across
the Northern Plains and help to induce thunderstorms this evening.
Thunderstorms have already fired in the Black Hills and western
Wyoming as of this issuance. The high-resolution guidance has
continued to indicate the chance for a MCS to develop from this
activity in the High Plains and track southeast across Nebraska.
The question now though is, how exactly will this convection
evolve? The NAM and GFS seem to be struggling some what, but
ultimately develop a MCS and track it east/southeast during the
overnight aided by low level moisture transport. These guidance
keep the bulk of the QPF north of the forecast area, over northern
Nebraska. The higher resolution NAMNest shows a squall line
developing and tracking south across the heart of Nebraska,
including much of the forecast area. The HRRR indicates the
potential for convection developing off the High Plains of the
Nebraska Panhandle moving east and merging with the squall line
from SD and moving across Nebraska. There are a lot of solutions
and as mentioned, which will occur? While the details are a bit
hairy, the main take away is that there is a decent chance for
thunderstorms to impact central and parts of south central
Nebraska. The best chance will be along and north of I-80, but
cannot rule out the possibility for the remainder of Nebraska.
North central Kansas looks like it will stay mostly dry. A
marginal and slight risk encompass the forecast area. Think the
best chance will be for severe wind vs. hail during the overnight
hours. Timing: 10pm-6am.

Saturday and Sunday: The main concern for the weekend is the heat.
With the upper ridge square overhead, temperatures will soar.
Highs will be in the 90s and even breaching the triple digits in
north central Kansas. Sunday will be hotter than Saturday across
the area. Heat indices will approach 100. There is a small chance
for thunderstorms during the day Saturday as it gets warm enough,
but upper level support is minimal. The forecast is dry for the
whole weekend, but a Marginal Risk is overhead for Saturday.
Cannot rule out a convectively induce brief thunderstorm, but for
most the chances are better it will remain dry.

.LONG TERM...(Monday through Friday)
Issued at 354 PM CDT Fri Jun 8 2018

An upper disturbance will be rotating around the upper trough
across the northern Rockies/Plains and kick out a cold front
across the area for early Monday. With this trough the upper
pattern will become more zonal. Temperatures will begin to
moderate back to climatic norms in the low 80s. This frontal
passage Monday is expected to be mostly dry. There are scattered
precipitation chances through the work-week, but the best chance
looks to be Tuesday night through Wednesday as a wave moves across
the Northern Plains.

&&

.AVIATION...(For the 06Z KGRI/KEAR TAFS through 06Z Sunday)
Issued at 1218 AM CDT Sat Jun 9 2018

Main concern for this TAF period will come in the first 3-6 hours,
as a MCS makes its way southeast through central NE. Still has a
ways to go to affect the terminal areas, but timing trends look to
bring it in around 07Z. Once this activity passes later tonight,
have the rest of the period dry, with VFR conditions. Winds may be
variable/gusty with any thunderstorms, but otherwise generally
southeasterly winds are expected.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...None.
KS...None.
&&

SHORT TERM...Billings Wright
LONG TERM...Billings Wright
AVIATION...ADP
Hazardous weather outlook, Jun 8, 3:59 PM CDT, 11 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Hastings NE
359 PM CDT Fri Jun 8 2018

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
092100-
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-
359 PM CDT Fri Jun 8 2018

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

.DAY ONE...This Afternoon and Tonight.

There will be a chance for strong to severe thunderstorms tonight,
mainly across central and south central Nebraska. The main hazards will
be damaging wind gusts near 70 MPH and hail up the size of half
dollars.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

This weekend will be hot by early-June standards. Especially on
Sunday afternoon, heat index values could reach 100 degrees in
various parts of the outlook area.

Between Monday afternoon and Thursday, intermittent thunderstorm
chances return to various portions of the outlook area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this evening through
tonight, mainly across south central Nebraska.

&&

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

Billings Wright

In the hours before

Local storm report, Jun 9, 2:27 AM CDT, 33 minutes before
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Local storm report, Jun 9, 2:47 AM CDT, 13 minutes before
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Local storm report, Jun 9, 2:48 AM CDT, 12 minutes before
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Local storm report, Jun 9, 2:49 AM CDT, 11 minutes before
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Local storm report, Jun 9, 2:54 AM CDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 12:18 AM CDTSpecial Weather StatementGIDValley42 min
Jun 9, 12:37 AM CDTSevere Thunderstorm WarningGIDGreeley, Sherman, Valley23 min
Jun 9, 1:00 AM CDTSevere Thunderstorm WarningGIDBuffalo, Dawson, Greeley, Howard, Merrick, Nance and 2 more30 min
Jun 9, 1:30 AM CDTSpecial Weather StatementGIDBuffalo, Gosper, Hall, Kearney, Merrick, Nance and 1 more30 min
Jun 9, 1:41 AM CDTSpecial Weather StatementGIDHoward, Sherman34 min
Jun 9, 1:59 AM CDTSevere Thunderstorm WarningGIDAdams, Clay, Hall, Hamilton, Kearney, Merrick and 2 more31 min
Jun 9, 2:06 AM CDTSevere Thunderstorm WarningGIDAdams, Buffalo, Franklin, Harlan, Kearney, Phelps24 min
Jun 9, 2:31 AM CDTSevere Thunderstorm WarningGIDAdams, Clay, Fillmore, Hamilton, Nuckolls, Polk and 2 more29 min
Jun 9, 2:33 AM CDTSevere Thunderstorm WarningGIDAdams, Franklin, Harlan, Kearney, Webster27 min
Jun 9, 3:03 AM CDTSevere Thunderstorm WarningGIDFranklin, Harlan, Webster27 min
Jun 9, 3:30 AM CDTSpecial Weather StatementGIDThayer30 min
Jun 9, 3:57 AM CDTSpecial Weather StatementGIDThayer33 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018Severe Thunderstorm Warnings in Kansas, 2018Every 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.