Alert archive / Nebraska / Special Weather Statements in 2012

Special Weather Statement, NWS Omaha, NE

August 2, 2012Gage County, Jefferson County, Nebraska

NWS Omaha, NE issued this special weather statement at Aug 2, 2012, 2:10 AM CDT for Gage County, Jefferson County, Nebraska. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 2, 2012, 2:10 AM CDT (07:10 UTC)
Expired
Aug 2, 2012, 3:15 AM CDT
In force
65 min
Issued by
NWS Omaha, NE

Counties Gage County, NE, Jefferson County, NE

The radar

The Grand Island radar (KUEX), 118 km from the middle of the area, began a volume at 07:11 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, 7.2 hours before the alert went out and 145 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 2012-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2012-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
7 J/kg
Mixed-layer CIN
-190 J/kg
Mixed-layer LCL
2779 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 1, 11:54 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Aug 1, 11:54 PM CDT, 2 hours 16 minutes before
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Hazardous weather outlook, Aug 1, 5:27 PM CDT, 8 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
527 PM CDT WED AUG 1 2012

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-021230-
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-
527 PM CDT WED AUG 1 2012

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 THURSDAY

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE INTO
NORTHEAST NEBRASKA THIS EVENING AND SPREAD SOUTHEAST
OVERNIGHT...WITH A FEW LINGERING STORMS NEAR THE KANSAS BORDER
THURSDAY MORNING. SOME STORMS MAY PRODUCE DAMAGING WINDS AND
MARGINALLY SEVERE HAIL WITH THEM.

AN UPPER LEVEL WEATHER DISTURBANCE WITH AN ACCOMPANYING SURFACE
FRONT AND AVAILABLE MONSOONAL MOISTURE ARE RESPONSIBLE FOR THE
STORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH WEDNESDAY

SCATTERED THUNDERSTORMS ARE FORECAST FOR FRIDAY NIGHT AND
SATURDAY WITH ANOTHER CHANCE FOR STORMS MONDAY NIGHT. DAMAGING
WINDS AND LARGE HAIL MAY ACCOMPANY THE STORMS FRIDAY NIGHT AND
SATURDAY.

THE STORMS FRIDAY NIGHT AND SATURDAY ARE ASSOCIATED WITH A
STRONGER WEATHER DISTURBANCE AND FRONT THAT MOVES THROUGH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT...BUT WILL PROBABLY NOT
BE NEEDED THURSDAY MORNING.

ZAPOTOCNY

In the hours before

Special weather statement, Aug 1, 10:15 PM CDT, 3 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1015 PM CDT WED AUG 1 2012

NEZ011-012-017-018-031>033-020345-
CEDAR NE-STANTON NE-PIERCE NE-MADISON NE-CUMING NE-WAYNE NE-KNOX NE-
1015 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CEDAR...STANTON...
EASTERN PIERCE...NORTHEASTERN MADISON...NORTHWESTERN CUMING...
WAYNE AND SOUTHEASTERN KNOX COUNTIES UNTIL 1045 PM CDT...

AT 1012 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM WAUSA TO 7 MILES SOUTH OF NORFOLK...OR ALONG A LINE EXTENDING
FROM 26 MILES SOUTH OF YANKTON TO 33 MILES NORTH OF COLUMBUS...AND
MOVING EAST AT 25 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORFOLK...WAYNE...HARTINGTON...STANTON...WISNER...RANDOLPH...WAUSA...
COLERIDGE...WINSIDE...PILGER...HADAR...HOSKINS...CARROLL...LAUREL...
BELDEN...MAGNET...MCLEAN AND SHOLES.

LAT...LON 4227 9702 4226 9692 4183 9686 4184 9746
      4257 9756 4268 9701
TIME...MOT...LOC 0312Z 261DEG 22KT 4251 9748 4192 9740

MILLER
Special weather statement, Aug 1, 10:40 PM CDT, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1040 PM CDT WED AUG 1 2012

NEZ012-015-018-020415-
CEDAR NE-THURSTON NE-WAYNE NE-
1040 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CEDAR...WESTERN
THURSTON AND WAYNE COUNTIES UNTIL 1115 PM CDT...

AT 1036 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR CARROLL...OR 19 MILES
NORTHEAST OF NORFOLK...MOVING EAST AT 20 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WAYNE...WINSIDE...CARROLL AND SHOLES.

LAT...LON 4227 9702 4226 9680 4209 9671 4209 9721
      4238 9732 4242 9702
TIME...MOT...LOC 0336Z 259DEG 17KT 4226 9720

MILLER
Local storm report, Aug 1, 11:15 PM CDT, 2 hours 55 minutes before
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Special weather statement, Aug 1, 11:23 PM CDT, 2 hours 47 minutes before
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Special weather statement, Aug 1, 11:50 PM CDT, 2 hours 20 minutes before
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Special weather statement, Aug 2, 2:10 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:28 PM CDTSpecial Weather StatementOAXKnox32 min
Aug 1, 8:41 PM CDTSpecial Weather StatementOAXAntelope49 min
Aug 1, 9:14 PM CDTSevere Thunderstorm WarningOAXAntelope, Knox46 min
Aug 1, 9:53 PM CDTSpecial Weather StatementOAXMadison, Pierce, Platte37 min
Aug 1, 10:15 PM CDTSpecial Weather StatementOAXCedar, Stanton, Wayne30 min
Aug 1, 10:40 PM CDTSpecial Weather StatementOAXWayne35 min
Aug 1, 10:54 PM CDTSevere Thunderstorm WarningOAXCedar, Thurston, Wayne21 min
Aug 1, 11:13 PM CDTSevere Thunderstorm WarningOAXBurt, Cuming, Thurston, Wayne32 min
Aug 1, 11:23 PM CDTSpecial Weather StatementOAXColfax, Cuming, Platte, Stanton37 min
Aug 1, 11:50 PM CDTSpecial Weather StatementOAXColfax40 min

Nearby

Special Weather Statements in Nebraska, 2012Every special weather statement in 2012

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.