Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 209, NWS Omaha, NE

June 24, 1998Antelope County, Knox County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 1998, 7:46 PM CDT for Antelope County, Knox County, Nebraska. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 24, 1998, 7:46 PM CDT (00:46 UTC)
Expired: Jun 24, 1998, 8:50 PM CDT
In force: 64 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Antelope County, NE, Knox County, NE

What was reported inside it

Time	Report	Where	Remark
Jun 24, 8:21 PM CDT	Hail 1.75	Verdigre, NE
Jun 24, 8:30 PM CDT	Hail 0.88	Niobrara, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 24, 6:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 260 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: 1459 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 2269 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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.

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.

In the hours before

Local storm report, Jun 24, 2:15 PM CDT, 5 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT  ...ADDITIONAL STORM REPORTS
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
215 PM CDT WED JUN 24 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1022 PM    HOWELLS                   NE   61 MPH TSTM GUST
06/23/98   COLFAX                         THUNDERSTORM GUST.

1045 PM    OAKLAND                   NE   65 MPH TSTM GUST
06/23/98   BURT                           NUMEROUS TREES DAMAGED.
                                          REPORTED BY COOP OBSERVER

Local storm report, Jun 24, 2:15 PM CDT, 5 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT  ...ADDITIONAL STORM REPORTS
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
215 PM CDT WED JUN 24 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1022 PM    HOWELLS                   NE   61 MPH TSTM GUST
06/23/98   COLFAX                         THUNDERSTORM GUST.

1045 PM    OAKLAND                   NE   65 MPH TSTM GUST
06/23/98   BURT                           NUMEROUS TREES DAMAGED.
                                          REPORTED BY COOP OBSERVER

Special weather statement, Jun 24, 5:13 PM CDT, 2 hours 33 minutes before

NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-251200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
513 PM CDT WED JUN 24 1998

...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA...

SPOTTER ACTION...
STORM SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING OR TONIGHT IN
EASTERN NEBRASKA AND SOUTHWEST IOWA.

DISCUSSION...
LATE THIS AFTERNOON...AN AREA OF LOW PRESSURE WAS OVER CENTRAL NEBRASKA
WITH A WARM FRONT EXTENDING EAST ACROSS NORTHEASTERN NEBRASKA AND
WESTERN IOWA.  A DRYLINE ALSO EXTENDED SOUTH FROM THE SURFACE LOW INTO
CENTRAL KANSAS.  THUNDERSTORMS HAVE DEVELOPED OVER NORTH CENTRAL
NEBRASKA THIS AFTERNOON AND ARE EXPECTED TO MOVE NORTHEAST ALONG THE
WARM FRONT TONIGHT.  THEREFORE...THE GREATEST RISK OF SEVERE WEATHER
WILL BE OVER THE NORTHEASTERN PART OF THE OUTLOOK AREA...GENERALLY
NORTH OF A NORFOLK TO PENDER TO ONAWA IOWA LINE.

FARTHER SOUTH ALONG THE DRYLINE...WARM TEMPERATURES IN THE UPPER LEVELS
OF THE ATMOSPHERE ARE EXPECTED TO LIMIT THUNDERSTORM ACTIVITY.
HOWEVER...IF THUNDERSTORMS ARE ABLE TO DEVELOP...THEY WILL HAVE A GOOD
CHANCE OF BECOMING SEVERE.

LARGE HAIL AND DAMAGING WINDS WILL BE THE GREATEST THREAT FROM THESE
STORMS...BUT A FEW TORNADOES WILL BE POSSIBLE...ESPECIALLY WITH STORMS
MOVING ALONG THE WARM FRONT.

MEAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 7:53 PM CDT	Tornado Warning	OAX	Knox	62 min
Jun 24, 8:47 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	48 min
Jun 24, 9:46 PM CDT	Severe Thunderstorm Warning	OAX	Butler	49 min
Jun 24, 9:56 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Saunders	64 min
Jun 24, 10:06 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Washington	64 min
Jun 24, 10:40 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee, Richardson	65 min
Jun 24, 10:52 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha	63 min
Jun 24, 11:53 PM CDT	Flash Flood Warning	OAX	Dodge	4 hr
Jun 25, 12:49 AM CDT	Severe Thunderstorm Warning	OAX	Burt	36 min
Jun 25, 12:54 AM CDT	Severe Thunderstorm Warning	OAX	Richardson	46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1998 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.