Alert archive / Nebraska / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 28, NWS Hastings, NE

April 21, 2019Howard County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 21, 2019, 8:45 PM CDT for Howard County, Nebraska. It was in force for 45 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
Apr 21, 2019, 8:45 PM CDT (01:45 UTC)
Expired
Apr 21, 2019, 9:30 PM CDT
In force
45 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Howard County, NE

The radar

The Grand Island radar (KUEX), 100 km from the middle of the area, began a volume at 01:44 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, 1.8 hours before the alert went out and 180 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 2019-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1036 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 2019-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
1036 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
2336 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

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 Apr 21, 6:22 PM CDT, 2 hours 23 minutes earlier.

Area forecast discussion, Apr 21, 6:22 PM CDT, 2 hours 23 minutes before
Area Forecast Discussion
National Weather Service Hastings NE
622 PM CDT Sun Apr 21 2019

.SHORT TERM...(This evening through Monday)
Issued at 322 PM CDT Sun Apr 21 2019

Skies have cleared for much of the area with just a few cirrus and
mid level clouds around the area. The surface low and cold front
have started to move into the area, but at this time, the front is
just into the northwest part of the area.

Expect that the front will continue to move into the area this
afternoon and tonight. By this evening, the front should be in the
central part of the forecast area, and it should be mainly through
the area during the overnight hours. There is pretty good agreement
in the short term models that there will be some development along
or behind the front mainly during the evening hours. The best chance
for development is probably between 6 and 8 pm this evening. That
coincides with some of the best MUCAPE, around 3000 j/kg, and the
least CIN. There could be a few strong to severe storms, but expect
that hail with be the biggest threat.

Later tonight, the CAPE falls off after sunset and as the front
moves out, the upper level wave will keep a few showers and
thunderstorms, but expect them to be further to the north near the
upper level wave. Thunderstorms should diminish and leave just
showers toward morning. Still have showers in the north through the
day on Monday, but not sure how much there will be.

After the front moves through, there will be increasing low clouds
and north winds will increase and become breezy. The low clouds are
expected to continue into the day on Monday. The clouds and cold
advection will keep temperatures quite a bit cooler than today.

.LONG TERM...(Monday night through Sunday)
Issued at 322 PM CDT Sun Apr 21 2019

A surface high will move into the area Monday night and and Tuesday.
This will slowly clear the clouds out and allow for some sunshine.
Expect Tuesday to be a little warmer than Monday. Wednesday and
Thursday should continue to be dry. There will be a little warm
advection and with some sunshine, expect there to be warmer
temperatures again.

The next upper level wave will affect the area Thursday night
through Friday night. There could be a few showers and even some
thunderstorms Friday night. On Saturday the cold front finally moves
through the area and temperatures warm up a little more just ahead
of the front. Then Saturday night into Sunday there will be some
small chances for showers and isolated thunderstorms Saturday night
with showers possible Sunday.

&&

.AVIATION...(For the 00Z KGRI/KEAR TAFS through 00Z Monday)
Issued at 617 PM CDT Sun Apr 21 2019

An upper level trough will bring a chance for some VCSH and maybe
a few VCTS to the TAF sites this evening. Guidance shows GRI to
have the better chances for VCTS, so left out for EAR at this
time. Ceilings will lower behind the cold front moving across the
region this evening with MVFR forecast after midnight. Low clouds
look to linger until midday and will begin to lift in the
afternoon and should scatter out in the evening.

&&

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

SHORT TERM...JCB
LONG TERM...JCB
AVIATION...Beda
Hazardous weather outlook, Apr 21, 3:31 PM CDT, 5 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Hastings NE
331 PM CDT Sun Apr 21 2019

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
221215-
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-
331 PM CDT Sun Apr 21 2019

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

.DAY ONE...This Afternoon and Tonight.

Scattered thunderstorms are expected this evening and tonight. A
few severe storms are possible with hail to the size of quarters
and isolated damaging wind gusts to 60 MPH.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Chances for thunderstorms return to the forecast Friday night and
Saturday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this evening and tonight.

&&

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

In the hours before

Local storm report, Apr 21, 8:11 PM CDT, 34 minutes before
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Local storm report, Apr 21, 8:23 PM CDT, 22 minutes before
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Local storm report, Apr 21, 8:28 PM CDT, 17 minutes before
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Local storm report, Apr 21, 8:29 PM CDT, 16 minutes before
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Local storm report, Apr 21, 8:40 PM CDT, 5 minutes before
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Special weather statement, Apr 21, 8:41 PM CDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:04 PM CDTSevere Thunderstorm WarningGIDBuffalo, Hall, Howard, Sherman41 min
Apr 21, 7:50 PM CDTSevere Thunderstorm WarningGIDHarlan40 min
Apr 21, 8:22 PM CDTSevere Thunderstorm WarningGIDFranklin, Furnas, Harlan38 min
Apr 21, 8:41 PM CDTSpecial Weather StatementGIDHoward49 min
Apr 21, 8:51 PM CDTSevere Thunderstorm WarningGIDNuckolls, Webster39 min
Apr 21, 9:06 PM CDTSpecial Weather StatementGIDFranklin, Harlan39 min
Apr 21, 9:06 PM CDTSevere Thunderstorm WarningGIDMerrick, Nance39 min
Apr 21, 9:17 PM CDTSpecial Weather StatementGIDDawson43 min
Apr 21, 9:27 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Nance27 min
Apr 21, 9:32 PM CDTSpecial Weather StatementGIDNuckolls, Thayer43 min
Apr 21, 9:37 PM CDTSevere Thunderstorm WarningGIDNance38 min
Apr 21, 9:39 PM CDTSpecial Weather StatementGIDAdams, Buffalo, Clay, Fillmore, Hall, Hamilton and 1 more51 min
Apr 21, 9:50 PM CDTSpecial Weather StatementGIDHarlan, Phelps40 min
Apr 21, 9:58 PM CDTSpecial Weather StatementGIDPhelps47 min
Apr 21, 10:38 PM CDTSpecial Weather StatementGIDPolk52 min
Apr 21, 11:40 PM CDTSpecial Weather StatementGIDFillmore35 min
Apr 21, 7:20 PM CDTSpecial Weather StatementGIDRooks40 min
Apr 21, 7:26 PM CDTSevere Thunderstorm WarningGIDOsborne, Phillips, Rooks49 min
Apr 21, 8:17 PM CDTSevere Thunderstorm WarningGIDJewell, Mitchell, Osborne, Smith43 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2019Every severe thunderstorm warning in 2019

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.