Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 132, NWS Omaha, NE

June 5, 2014Thurston County, Nebraska; Monona County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at Jun 5, 2014, 3:30 PM CDT for Thurston County, Nebraska; Monona County, Iowa. 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: Jun 5, 2014, 3:30 PM CDT (20:30 UTC)
Expired: Jun 5, 2014, 4:15 PM CDT
In force: 45 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Monona County, IA, Thurston County, NE

The radar

The Omaha radar (KOAX), 88 km from the middle of the area, began a volume at 20:29 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 12:00Z, 8.5 hours before the alert went out and 88 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: 446 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 5, 3:22 PM CDT, 8 minutes earlier.

Area forecast discussion, Jun 5, 3:22 PM CDT, 8 minutes before

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Hazardous weather outlook, Jun 5, 11:04 AM CDT, 4 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1104 AM CDT THU JUN 5 2014

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-060615-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-
STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-
SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE-
JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON-
1104 AM CDT THU JUN 5 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST
NEBRASKA AND SOUTHEAST NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SMALL CHANCE FOR THUNDERSTORM DEVELOPMENT THIS
AFTERNOON. SEVERE STORMS THOUGH ARE NOT ANTICIPATED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS ARE POSSIBLE ON FRIDAY NIGHT AND SATURDAY AS A STORM
SYSTEM PASSES JUST TO THE SOUTH OF NEBRASKA AND IOWA. WHILE THE
CHANCE FOR WIDESPREAD SEVERE STORMS IS LOW...SOME STORMS IN
SOUTHEAST NEBRASKA AND SOUTHWEST IOWA COULD BE STRONG TO SEVERE
WITH LARGE HAIL.

OTHERWISE SEVERAL DISTURBANCES MOVING THROUGH THE PLAINS WILL
BRING OFF AND ON STORM CHANCES THROUGH THE MIDDLE OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

In the hours before

Special weather statement, Jun 5, 2:26 PM CDT, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
226 PM CDT THU JUN 5 2014

IAZ043-NEZ015-052000-
MONONA IA-THURSTON NE-
226 PM CDT THU JUN 5 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MONONA AND
NORTHEASTERN THURSTON COUNTIES UNTIL 300 PM CDT...

AT 226 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
EMERSON...OR 18 MILES SOUTHWEST OF SIOUX CITY...MOVING SOUTHEAST AT
20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
EMERSON...WALTHILL...WINNEBAGO AND MACY.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4227 9635 4226 9633 4223 9632 4222 9634
      4221 9630 4207 9639 4224 9675 4228 9673
TIME...MOT...LOC 1926Z 293DEG 18KT 4230 9662

DEE

Local storm report, Jun 5, 2:47 PM CDT, 43 minutes before

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Special weather statement, Jun 5, 3:01 PM CDT, 29 minutes before

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Local storm report, Jun 5, 3:04 PM CDT, 26 minutes before

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Special weather statement, Jun 5, 3:14 PM CDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 6:29 AM CDT	River Flood Warning	OAX	Saline	57 hr
Jun 5, 2:26 PM CDT	Special Weather Statement	OAX	Thurston	34 min
Jun 5, 2:31 PM CDT	Severe Thunderstorm Warning	OAX	Thurston	29 min
Jun 5, 3:01 PM CDT	Special Weather Statement	OAX	Thurston	44 min
Jun 5, 3:03 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Thurston	27 min
Jun 5, 3:14 PM CDT	Special Weather Statement	OAX	Thurston	31 min
Jun 5, 3:17 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Thurston	43 min
Jun 5, 3:57 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Thurston	33 min
Jun 5, 4:07 PM CDT	Special Weather Statement	OAX	Burt	38 min
Jun 5, 4:12 PM CDT	Severe Thunderstorm Warning	OAX	Burt	33 min
Jun 5, 4:20 PM CDT	Special Weather Statement	OAX	Burt	40 min
Jun 5, 4:44 PM CDT	Special Weather Statement	OAX	Burt	46 min
Jun 5, 5:12 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Washington	38 min
Jun 5, 5:36 PM CDT	Special Weather Statement	OAX	Washington	39 min
Jun 5, 6:41 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	34 min
Jun 5, 4:14 PM CDT	Severe Thunderstorm Warning	OAX	Monona	46 min
Jun 5, 4:32 PM CDT	Severe Thunderstorm Warning	OAX	Monona	43 min
Jun 5, 4:59 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	24 min
Jun 5, 5:26 PM CDT	Special Weather Statement	OAX	Harrison	49 min
Jun 5, 5:51 PM CDT	Special Weather Statement	OAX	Harrison	24 min
Jun 5, 5:53 PM CDT	Special Weather Statement	OAX	Harrison	37 min
Jun 5, 6:24 PM CDT	Special Weather Statement	OAX	Pottawattamie	51 min
Jun 5, 6:33 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	27 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Severe Thunderstorm Warnings in Iowa, 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.