Alert archive / Nebraska / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 14, NWS Hastings, NE

April 25, 2009Thayer County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 25, 2009, 11:49 PM CDT for Thayer County, Nebraska. It was in force for 10 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 25, 2009, 11:49 PM CDT (04:49 UTC)
Expired: Apr 25, 2009, 11:59 PM CDT
In force: 10 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon

County Thayer County, NE

The radar

The Grand Island radar (KUEX), 74 km from the middle of the area, began a volume at 04:49 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, 4.8 hours before the alert went out and 164 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 620 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 364 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 25, 7:06 PM CDT, 4 hours 43 minutes earlier.

Area forecast discussion, Apr 25, 7:06 PM CDT, 4 hours 43 minutes before

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Hazardous weather outlook, Apr 25, 9:58 PM CDT, 1 hour 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
958 PM CDT SAT APR 25 2009

KSZ005-017-NEZ039>041-046>049-060>063-072>075-082>084-261200-
PHILLIPS-ROOKS-VALLEY-GREELEY-NANCE-SHERMAN-HOWARD-MERRICK-POLK-
DAWSON-BUFFALO-HALL-HAMILTON-GOSPER-PHELPS-KEARNEY-ADAMS-FURNAS-
HARLAN-FRANKLIN-
958 PM CDT SAT APR 25 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NEBRASKA...MAINLY WEST OF A LINE FROM YORK...TO RED CLOUD...AND
A SMALL PART OF NORTH CENTRAL KANSAS...MAINLY WEST OF HIGHWAY 281.

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TONIGHT. THE STORMS WILL MOVE
NORTHEAST ACROSS THE AREA THROUGH THE NIGHT. A FEW OF THE STRONGER
STORMS COULD PRODUCE HAIL UP TO THE SIZE OF NICKELS.

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

ISOLATED TO SCATTERED THUNDERSTORMS WILL LINGER THROUGH SUNDAY
MORNING...WITH SMALL HAIL POSSIBLE FROM STRONGER STORMS. THERE IS
A SLIGHT CHANCE FOR A FEW MORE THUNDERSTORMS LATE IN THE DAY
SUNDAY...BUT SEVERE WEATHER IS NOT EXPECTED.

THUNDERSTORMS ARE BACK IN THE FORECAST BEGINNING TUESDAY NIGHT...
AND CONTINUING RIGHT ON THROUGH FRIDAY NIGHT ON A PERIODIC BASIS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

KSZ006-007-018-019-NEZ064-076-077-085>087-261200-
SMITH-JEWELL-OSBORNE-MITCHELL-YORK-CLAY-FILLMORE-WEBSTER-NUCKOLLS-
THAYER-
958 PM CDT SAT APR 25 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PART OF SOUTH CENTRAL
NEBRASKA...SOUTHEAST OF A YORK TO RED CLOUD LINE...AND PORTIONS
OF NORTH CENTRAL KANSAS...MAINLY ALONG AND EAST OF HIGHWAY 281.

.DAY ONE...TONIGHT.

LOOK FOR SCATTERED THUNDERSTORMS TO DEVELOP LATE THIS EVENING
AND MOVE TO THE NORTHEAST OVERNIGHT. A FEW OF THE STRONGER
THUNDERSTORMS MAY DROP HAIL UP TO THE SIZE OF QUARTERS.

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

THERE IS ANOTHER RISK FOR THUNDERSTORMS AGAIN BY AFTERNOON...
AS A WARM FRONT TRIES TO SURGE INTO THE AREA. THOUGH THERE IS
SOME UNCERTAINTY REGARDING JUST HOW FAR THE FRONT CAN ADVANCE...
SHOULD STORMS DEVELOP...THE MAIN HAZARDS WOULD BE POTENTIALLY
DAMAGING WINDS AND LARGE HAIL UP TO THE SIZE OF GOLF BALLS. THE
STORMS WILL DEVELOP DURING THE LATE AFTERNOON...AND LINGER INTO
THE EVENING HOURS BEFORE PUSHING EAST.

INTERMITTENT CHANCES OF THUNDERSTORMS WILL THEN CONTINUE TUESDAY
NIGHT THROUGH FRIDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH TONIGHT.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

WESELY

In the hours before

Special weather statement, Apr 25, 10:57 PM CDT, 52 minutes before

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Local storm report, Apr 25, 11:43 PM CDT, 6 minutes before

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Special weather statement, Apr 25, 11:43 PM CDT, 6 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
Apr 25, 11:43 PM CDT	Special Weather Statement	GID	Thayer	32 min
Apr 26, 12:53 AM CDT	Special Weather Statement	GID	Fillmore	37 min
Apr 26, 1:33 AM CDT	Special Weather Statement	GID	Fillmore	12 min
Apr 26, 1:44 AM CDT	Special Weather Statement	GID	Dawson	31 min
Apr 26, 2:07 AM CDT	Special Weather Statement	GID	York	23 min
Apr 26, 2:48 AM CDT	Special Weather Statement	GID	Valley	27 min
Apr 26, 3:20 AM CDT	Special Weather Statement	GID	Merrick	25 min
Apr 25, 10:57 PM CDT	Special Weather Statement	GID	Jewell	33 min
Apr 26, 8:28 AM CDT	Special Weather Statement	GID	Mitchell	47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2009 Every severe thunderstorm warning in 2009

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.