Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 249, NWS Omaha, NE

June 29, 2014Knox County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 29, 2014, 3:19 AM CDT for Knox County, Nebraska. It was in force for 26 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 29, 2014, 3:19 AM CDT (08:19 UTC)
Expired: Jun 29, 2014, 3:45 AM CDT
In force: 26 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Knox County, NE

The radar

The Sioux Falls radar (KFSD), 142 km from the middle of the area, began a volume at 08:20 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.

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 29, 3:04 AM CDT, 15 minutes earlier.

Area forecast discussion, Jun 29, 3:04 AM CDT, 15 minutes before

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Hazardous weather outlook, Jun 28, 5:33 PM CDT, 9 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
533 PM CDT SAT JUN 28 2014

IAZ043-055-056-069-080-091-NEZ011-012-015>018-030>034-042>045-
050>053-065-066-078-088>090-092-291245-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MONTGOMERY-PAGE-KNOX-CEDAR-
THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-BURT-
PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-DOUGLAS-SARPY-
SEWARD-LANCASTER-SALINE-JEFFERSON-GAGE-JOHNSON-PAWNEE-
533 PM CDT SAT JUN 28 2014

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

.DAY ONE...TONIGHT AND SUNDAY

ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE IN NORTHEAST
NEBRASKA THIS EVENING. SMALL HAIL AND GUSTY WINDS CAN BE EXPECTED
WITH THIS ACTIVITY. LATE TONIGHT...GENERALLY AFTER 4
AM...ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHEAST
NEBRASKA. THESE THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE
AND MOVE INTO WEST CENTRAL IOWA DURING THE MORNING HOURS. ISOLATED
HAIL GREATER THAN QUARTER SIZE IS POSSIBLE WITH THIS ACTIVITY.

BY EARLY AFTERNOON...ADDITIONAL THUNDERSTORMS ARE EXPECTED TO
DEVELOP FROM WESTERN IOWA INTO SOUTHEAST NEBRASKA. SEVERE WEATHER
IS LIKELY WITH THIS ACTIVITY DUE TO STRONG TO EXTREME INSTABILITY
AND FAVORABLE SHEAR. LARGE HAIL...DAMAGE WINDS...AND HEAVY
RAINFALL ARE THE MAIN THREATS FROM THESE STORMS. THESE
THUNDERSTORMS WILL MOVE EAST THROUGH THE AFTERNOON WITH THE
SEVERE WEATHER THREAT DIMINISHING BY EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH FRIDAY

ADDITIONAL THUNDERSTORMS MAY DEVELOP OVER CENTRAL NEBRASKA LATE
SUNDAY EVENING AND THEN MOVE INTO EASTERN NEBRASKA OVERNIGHT
SUNDAY...LASTING INTO MONDAY MORNING. SEVERE WEATHER WOULD BE
POSSIBLE WITH THIS ACTIVITY AS WELL...MAINLY IN THE FORM OF LARGE
HAIL. FINALLY...AS A COLD FRONT MOVES SOUTHEAST SOUTHEAST
NEBRASKA AND SOUTHWEST IOWA MONDAY AFTERNOON ADDITIONAL ISOLATED
THUNDERSTORM DEVELOPMENT IS POSSIBLE ALONG THE FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT...BUT MAY BE NEEDED
SUNDAY.

IAZ079-090-NEZ067-068-091-093-291245-
MILLS-FREMONT-CASS-OTOE-NEMAHA-RICHARDSON-
533 PM CDT SAT JUN 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA
AND SOUTHEAST NEBRASKA.

.DAY ONE...TONIGHT AND SUNDAY

ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE IN NORTHEAST
NEBRASKA THIS EVENING. SMALL HAIL AND GUSTY WINDS CAN BE EXPECTED
WITH THIS ACTIVITY. LATE TONIGHT...GENERALLY AFTER 4
AM...ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHEAST
NEBRASKA. THESE THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE
AND MOVE INTO WEST CENTRAL IOWA DURING THE MORNING HOURS. ISOLATED
HAIL GREATER THAN QUARTER SIZE IS POSSIBLE WITH THIS ACTIVITY.

BY EARLY AFTERNOON...ADDITIONAL THUNDERSTORMS ARE EXPECTED TO
DEVELOP FROM WESTERN IOWA INTO SOUTHEAST NEBRASKA. SEVERE WEATHER
IS LIKELY WITH THIS ACTIVITY DUE TO STRONG TO EXTREME INSTABILITY
AND FAVORABLE SHEAR. LARGE HAIL...DAMAGE WINDS...AND HEAVY
RAINFALL ARE THE MAIN THREATS FROM THESE STORMS. THESE
THUNDERSTORMS WILL MOVE EAST THROUGH THE AFTERNOON WITH THE
SEVERE WEATHER THREAT DIMINISHING BY EVENING.

MINOR FLOODING WILL CONTINUE THROUGH TONIGHT ON THE MISSOURI
RIVER...GENERALLY DOWNSTREAM OF PLATTSMOUTH.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH FRIDAY

ADDITIONAL THUNDERSTORMS MAY DEVELOP OVER CENTRAL NEBRASKA LATE
SUNDAY EVENING AND THEN MOVE INTO EASTERN NEBRASKA OVERNIGHT
SUNDAY...LASTING INTO MONDAY MORNING. SEVERE WEATHER WOULD BE
POSSIBLE WITH THIS ACTIVITY AS WELL...MAINLY IN THE FORM OF LARGE
HAIL. FINALLY...AS A COLD FRONT MOVES SOUTHEAST SOUTHEAST
NEBRASKA AND SOUTHWEST IOWA MONDAY AFTERNOON ADDITIONAL ISOLATED
THUNDERSTORM DEVELOPMENT IS POSSIBLE ALONG THE FRONT.

FLOODING WILL PERSIST ON THE MISSOURI RIVER FROM PLATTSMOUTH DOWNSTREAM
INTO EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT...BUT MAY BE NEEDED
ON SUNDAY.

In the hours before

Special weather statement, Jun 28, 10:27 PM CDT, 4 hours 52 minutes before

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Local storm report, Jun 28, 10:28 PM CDT, 4 hours 51 minutes before

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Local storm report, Jun 28, 10:46 PM CDT, 4 hours 33 minutes before

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Special weather statement, Jun 28, 10:55 PM CDT, 4 hours 24 minutes before

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Special weather statement, Jun 29, 12:20 AM CDT, 2 hours 59 minutes before

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Special weather statement, Jun 29, 12:58 AM CDT, 2 hours 21 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 28, 7:07 PM CDT	Special Weather Statement	OAX	Boone	23 min
Jun 28, 7:15 PM CDT	Special Weather Statement	OAX	Cuming, Stanton, Thurston	45 min
Jun 28, 7:40 PM CDT	Severe Thunderstorm Warning	OAX	Colfax, Cuming, Dodge, Stanton	35 min
Jun 28, 7:49 PM CDT	Special Weather Statement	OAX	Colfax	26 min
Jun 28, 8:12 PM CDT	Special Weather Statement	OAX	Colfax	33 min
Jun 28, 8:46 PM CDT	Special Weather Statement	OAX	Dodge	29 min
Jun 28, 9:00 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Saunders	30 min
Jun 28, 9:05 PM CDT	Special Weather Statement	OAX	Washington	25 min
Jun 28, 9:29 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Douglas, Saunders, Washington	31 min
Jun 28, 10:27 PM CDT	Special Weather Statement	OAX	Douglas	33 min
Jun 28, 10:35 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Washington	25 min
Jun 28, 10:55 PM CDT	Special Weather Statement	OAX	Douglas	35 min
Jun 29, 12:20 AM CDT	Special Weather Statement	OAX	Pierce	40 min
Jun 29, 12:58 AM CDT	Special Weather Statement	OAX	Cedar	17 min
Jun 29, 3:48 AM CDT	Special Weather Statement	OAX	Cedar	42 min
Jun 29, 7:31 AM CDT	Special Weather Statement	OAX	Boone, Colfax, Madison, Platte, Stanton	59 min
Jun 29, 8:42 AM CDT	Special Weather Statement	OAX	Platte, Stanton	48 min
Jun 29, 9:25 AM CDT	Special Weather Statement	OAX	Dodge	50 min
Jun 29, 9:59 AM CDT	Special Weather Statement	OAX	Washington	46 min
Jun 29, 4:37 PM CDT	Special Weather Statement	OAX	Washington	23 min
Jun 29, 4:53 PM CDT	Severe Thunderstorm Warning	OAX	Washington	37 min
Jun 29, 6:29 PM CDT	Special Weather Statement	OAX	Burt	16 min
Jun 29, 5:24 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	36 min
Jun 29, 5:30 PM CDT	Special Weather Statement	OAX	Monona	15 min
Jun 29, 5:52 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	23 min
Jun 29, 6:13 PM CDT	Severe Thunderstorm Warning	OAX	Shelby	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; radar from the NEXRAD Level II archive.