Storm Events Database

Event Details:

Event Hail
Magnitude 1.75 in.
County/Area HOWARD
Report Source Public
NCEI Data Source CSV
Begin Date 2012-08-07 18:00:00.0 CST-6
Begin Location 2E ELBA
Begin Lat/Lon 41.28/-98.5415
End Date 2012-08-07 18:10:00.0 CST-6
End Location 2SE ELBA
End Lat/Lon 41.2595/-98.5528
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 25.00K
Crop Damage 0.00K
Episode Narrative Between 430 PM and 730 PM CDT on this Tuesday, a slow-moving complex of severe thunderstorms with large hail pounded a localized area north of state Highway 92, primarily affecting western Nance, southeastern Greeley and northern Howard Counties. Despite this fairly limited areal coverage, there were numerous reports of hail ranging from nickel up to golf ball size, with most of these reports concentrated along a roughly 25-mile long corridor extending from west of Belgrade southwest through the Wolbach and Elba areas. Golf ball size hail reportedly shattered a windshield three miles northwest of Wolbach. Despite the slow-moving nature of these storms, the highest-known rainfall total within the affected area was only 1.34 inches in Wolbach. The initial severe storm rapidly intensified across western Nance County between 430 and 5 PM CDT before drifting slowly west-southwest toward Wolbach and Elba during the ensuing few hours. At times, the dominant storm core took on supercell characteristics as it merged with other storms developing in Greeley County. Finally between 7 and 730 PM CDT, the storm complex weakened over Howard County and soon dissipated, with no further thunderstorm development noted within South Central Nebraska. On the synoptic scale aloft, this event was driven by transient shortwave energy passing through northwest flow along the eastern periphery of an expansive mid-upper ridge centered over the Four Corners and Intermountain West regions. Features at the surface were fairly subtle, with storm initiation likely sparked by mesoscale convergence along a weak trough axis. Mesoscale severe weather parameters at mid-afternoon included around 2000 J/kg mixed-layer CAPE but no more than 30 knots of 0-6 kilometer deep layer wind shear.
Event Narrative


Event Map:

All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 100.00K 0.00K
BELGRADE NANCE CO. NE 08/07/2012 15:45 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
WOLBACH GREELEY CO. NE 08/07/2012 16:20 CST-6 Hail 1.00 in. 0 0 25.00K 0.00K
WOLBACH GREELEY CO. NE 08/07/2012 16:41 CST-6 Hail 1.75 in. 0 0 25.00K 0.00K
WOLBACH GREELEY CO. NE 08/07/2012 17:00 CST-6 Hail 1.75 in. 0 0 25.00K 0.00K
ELBA HOWARD CO. NE 08/07/2012 18:00 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
ELBA HOWARD CO. NE 08/07/2012 18:00 CST-6 Hail 1.75 in. 0 0 25.00K 0.00K
Totals: 0 0 100.00K 0.00K