Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 306, NWS Hastings, NE

August 21, 2014Adams County, Hall County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 21, 2014, 1:55 AM CDT for Adams County, Hall County, Nebraska. It was in force for 50 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: Aug 21, 2014, 1:55 AM CDT (06:55 UTC)
Expired: Aug 21, 2014, 2:45 AM CDT
In force: 50 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Adams County, NE, Hall County, NE

The radar

The Grand Island radar (KUEX), 42 km from the middle of the area, began a volume at 06:55 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.9 hours before the alert went out and 183 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: 1531 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 2021 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.3

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 Aug 21, 12:46 AM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, Aug 21, 12:46 AM CDT, 1 hour 9 minutes before

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Hazardous weather outlook, Aug 21, 12:52 AM CDT, 1 hour 3 minutes before

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In the hours before

Special weather statement, Aug 20, 8:56 PM CDT, 4 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
856 PM CDT WED AUG 20 2014

NEZ060-210230-
DAWSON NE-
856 PM CDT WED AUG 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DAWSON COUNTY UNTIL
930 PM CDT...

AT 855 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
GOTHENBURG...OR 23 MILES NORTHWEST OF LEXINGTON...MOVING NORTHEAST AT
15 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHWESTERN DAWSON
COUNTY.

LAT...LON 4105 10022 4105 9987 4093 10001 4094 10008
      4097 10022
TIME...MOT...LOC 0155Z 227DEG 15KT 4098 10010

WESELY

Special weather statement, Aug 21, 12:59 AM CDT, 56 minutes before

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Special weather statement, Aug 21, 1:18 AM CDT, 37 minutes before

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Special weather statement, Aug 21, 1:27 AM CDT, 28 minutes before

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Special weather statement, Aug 21, 1:46 AM CDT, 9 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
Aug 20, 8:56 PM CDT	Special Weather Statement	GID	Dawson	34 min
Aug 21, 12:59 AM CDT	Special Weather Statement	GID	Buffalo	16 min
Aug 21, 1:18 AM CDT	Special Weather Statement	GID	Buffalo	12 min
Aug 21, 1:27 AM CDT	Special Weather Statement	GID	Adams	18 min
Aug 21, 1:46 AM CDT	Special Weather Statement	GID	Hall	14 min
Aug 21, 2:26 AM CDT	Special Weather Statement	GID	Clay	19 min
Aug 21, 6:36 PM CDT	Special Weather Statement	GID	Nuckolls	39 min
Aug 21, 6:51 PM CDT	Special Weather Statement	GID	Nuckolls	39 min
Aug 21, 5:23 PM CDT	Special Weather Statement	GID	Jewell	37 min
Aug 21, 5:36 PM CDT	Severe Thunderstorm Warning	GID	Jewell	39 min
Aug 21, 5:42 PM CDT	Severe Thunderstorm Warning	GID	Osborne, Rooks	48 min
Aug 21, 6:13 PM CDT	Severe Thunderstorm Warning	GID	Jewell	47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Every severe thunderstorm warning in 2014

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.