Alert archive / Nebraska / Tornado Watches in 1998

Tornado Watch 599

June 17, 199841 counties in Nebraska; Bon Homme County, South Dakota

The Storm Prediction Center issued this tornado watch at Jun 17, 1998, 6:15 PM CDT for 41 counties in Nebraska; Bon Homme County, South Dakota. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 17, 1998, 6:15 PM CDT (23:15 UTC)
Expired
Jun 18, 1998, 1:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 42 counties

Adams County, NE, Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Holt County, NE, Howard County, NE, Jefferson County, NE, Kearney County, NE, Keya Paha County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Saline County, NE, Seward County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE, York County, NE, Bon Homme County, SD

The radar

The Grand Island radar (KUEX), 167 km from the middle of the area, began a volume at 23:19 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.

Warnings issued inside it

36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 17, 6:34 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard51 min
Jun 17, 6:52 PM CDTSevere Thunderstorm WarningGIDBuffalo48 min
Jun 17, 6:56 PM CDTSevere Thunderstorm WarningLBFWheeler64 min
Jun 17, 6:58 PM CDTSevere Thunderstorm WarningGIDSherman47 min
Jun 17, 7:03 PM CDTSevere Thunderstorm WarningGIDBuffalo47 min
Jun 17, 7:17 PM CDTSevere Thunderstorm WarningGIDHarlan48 min
Jun 17, 7:24 PM CDTSevere Thunderstorm WarningLBFHolt66 min
Jun 17, 7:25 PM CDTSevere Thunderstorm WarningGIDHoward45 min
Jun 17, 7:35 PM CDTSevere Thunderstorm WarningGIDGreeley50 min
Jun 17, 7:39 PM CDTSevere Thunderstorm WarningGIDPhelps51 min
Jun 17, 7:43 PM CDTSevere Thunderstorm WarningGIDSherman47 min
Jun 17, 7:51 PM CDTSevere Thunderstorm WarningGIDBuffalo34 min
Jun 17, 7:59 PM CDTSevere Thunderstorm WarningOAXAntelope, Boone61 min
Jun 17, 8:00 PM CDTSevere Thunderstorm WarningLBFWheeler65 min
Jun 17, 8:06 PM CDTSevere Thunderstorm WarningGIDDawson49 min
Jun 17, 8:13 PM CDTSevere Thunderstorm WarningGIDHoward47 min
Jun 17, 8:16 PM CDTSevere Thunderstorm WarningLBFCuster64 min
Jun 17, 8:27 PM CDTSevere Thunderstorm WarningLBFBoyd, Holt48 min
Jun 17, 8:30 PM CDTTornado WarningOAXBoone35 min
Jun 17, 8:32 PM CDTSevere Thunderstorm WarningGIDGreeley, Sherman63 min
Jun 17, 8:45 PM CDTTornado WarningOAXAntelope35 min
Jun 17, 8:51 PM CDTSevere Thunderstorm WarningGIDDawson64 min
Jun 17, 8:59 PM CDTSevere Thunderstorm WarningGIDValley61 min
Jun 17, 9:04 PM CDTSevere Thunderstorm WarningOAXBoone61 min
Jun 17, 9:04 PM CDTSevere Thunderstorm WarningOAXBoone66 min
Jun 17, 9:16 PM CDTSevere Thunderstorm WarningFSDBon Homme, Hutchinson34 min
Jun 17, 9:23 PM CDTSevere Thunderstorm WarningOAXAntelope32 min
Jun 17, 9:54 PM CDTSevere Thunderstorm WarningGIDSherman51 min
Jun 17, 10:07 PM CDTSevere Thunderstorm WarningGIDValley33 min
Jun 17, 10:13 PM CDTSevere Thunderstorm WarningGIDBuffalo32 min
Jun 17, 10:19 PM CDTFlash Flood WarningOAXBoone3 hr
Jun 17, 10:33 PM CDTFlash Flood WarningOAXBoone, Madison, Platte6 hr
Jun 17, 10:46 PM CDTSevere Thunderstorm WarningOAXMadison64 min
Jun 17, 10:52 PM CDTTornado WarningOAXMadison58 min
Jun 17, 11:02 PM CDTSevere Thunderstorm WarningGIDHoward48 min
Jun 17, 11:12 PM CDTSevere Thunderstorm WarningLBFCuster63 min

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.3 hours before the alert went out and 190 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 1998-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 1998-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
-531 J/kg
Mixed-layer LCL
1182 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Tornado Watches in Nebraska, 1998Tornado Watches in South Dakota, 1998Every tornado watch in 1998

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.