Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 334, NWS Omaha, NE

July 6, 20084 counties in Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jul 6, 2008, 3:01 PM CDT for 4 counties in Nebraska. It was in force for 44 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
Jul 6, 2008, 3:01 PM CDT (20:01 UTC)
Expired
Jul 6, 2008, 3:45 PM CDT
In force
44 min
Issued by
NWS Omaha, NE
Area
Storm-based polygon

Counties Cuming County, NE, Stanton County, NE, Thurston County, NE, Wayne County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 8.0 hours before the alert went out and 93 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 12:00Z on 2008-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2155 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 12:00Z on 2008-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
2155 J/kg
Mixed-layer CIN
-356 J/kg
Mixed-layer LCL
1374 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
130 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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 11:16 AM CDT, 3 hours 45 minutes earlier.

Area forecast discussion, Jul 6, 11:16 AM CDT, 3 hours 45 minutes before
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Hazardous weather outlook, Jul 6, 12:01 PM CDT, 3 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1201 PM CDT SUN JUL 6 2008

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-070715-
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-
1201 PM CDT SUN JUL 6 2008

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

THUNDERSTORMS ARE LIKELY ACROSS PARTS OF EASTERN NEBRASKA AND
WESTERN IOWA FROM THIS AFTERNOON THROUGH TONIGHT AS A COLD FRONTMOVES
IN FROM THE NORTHWEST. SEVERE THUNDERSTORMS ARE
POSSIBLE...ESPECIALLY ALONG AND NORTH OF INTERSTATE 80. THE
PRIMARY THREATS FROM THESE STORMS WILL BE DAMAGING WINDS...THOUGH
LARGE HAIL IS ALSO POSSIBLE. IN ADDITION...THUNDERSTORMS WILL BE
SLOWER MOVING AND WILL PRODUCE HEAVY RAIN...AND LOCALIZED FLOODING
IS POSSIBLE IF STORMS DO TRACK REPEATEDLY OVER THE SAME LOCATIONS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SEVERE THUNDERSTORMS ARE POSSIBLE MONDAY AFTERNOON AND MONDAY
NIGHT AS A COLD FRONT CONTINUES TO PUSH SOUTH THROUGH THE MISSOURI
RIVER VALLEY. WARM AND HUMID AIR SOUTH OF THE FRONT WILL PROVIDE
INSTABILITY TO HELP THUNDERSTORMS DEVELOP AS THE FRONT MOVES
THROUGH.  DAMAGING WINDS...LARGE HAIL...AND HEAVY RAIN ARE THE
PRIMARY THREATS.

THUNDERSTORMS MAY LINGER OVER SOUTHEAST NEBRASKA AND SOUTHWEST
IOWA INTO TUESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT...
ESPECIALLY IN NORTHEAST NEBRASKA AND WEST CENTRAL IOWA.

MAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 3:04 PM CDTSevere Thunderstorm WarningOAXBurt, Thurston41 min
Jul 6, 3:33 PM CDTSevere Thunderstorm WarningOAXCuming, Thurston, Wayne27 min
Jul 6, 3:40 PM CDTSevere Thunderstorm WarningOAXBurt, Thurston50 min
Jul 6, 3:54 PM CDTSevere Thunderstorm WarningOAXCedar36 min
Jul 6, 3:59 PM CDTSevere Thunderstorm WarningOAXCuming16 min
Jul 6, 4:26 PM CDTSevere Thunderstorm WarningOAXBurt, Thurston49 min
Jul 6, 4:53 PM CDTFlash Flood WarningOAXBurt, Thurston3 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008Every severe thunderstorm warning in 2008

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.