Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 23, NWS Omaha, NE

April 12, 1998Antelope County, Pierce County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Apr 12, 1998, 3:25 PM CDT for Antelope County, Pierce County, Nebraska. It was in force for 45 min. 1 report 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: Apr 12, 1998, 3:25 PM CDT (20:25 UTC)
Expired: Apr 12, 1998, 4:10 PM CDT
In force: 45 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Antelope County, NE, Pierce County, NE

What was reported inside it

Time	Report	Where	Remark
Apr 12, 4:07 PM CDT	Hail 0.75	Pierce, 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 nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 8.4 hours before the alert went out and 157 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1568 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 487 m²/s²
0-3 km storm-relative helicity: 522 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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

Special weather statement, Apr 12, 11:21 AM CDT, 4 hours 4 minutes before

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Special weather statement, Apr 12, 11:21 AM CDT, 4 hours 4 minutes before

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Special weather statement, Apr 12, 12:40 PM CDT, 2 hours 45 minutes before

NEZ007-010-028-029-121900-

WIND ADVISORY
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1240 PM CDT SUN APR 12 1998

...WIND ADVISORY CANCELLED FOR REMAINDER OF CENTRAL NEBRASKA...

THE WIND ADVISORY THAT HAS BEEN IN EFFECT FOR PORTIONS OF NORTHCENTRAL
NEBRASKA THROUGH THIS AFTERNOON HAS BEEN CANCELLED.  THE VERY STRONG
SOUTHERLY WINDS THAT HAD BEEN OCCURRING OVER THE AREA HAVE PUSHED OFF
TO THE EAST.  WESTERLY WINDS HAVE MOVED INTO THE AREA...AND ALTHOUGH
THESE WINDS ARE AVERAGING 20 TO 30 MPH WITH A FEW HIGHER GUSTS...THIS
IS BELOW ADVISORY LEVELS.

A WIND ADVISORY CONTINUES THROUGH THE AFTERNOON FOR EASTERN PORTIONS OF
THE STATE.  WINDSPEEDS THERE ARE EXPECTED TO EXCEED 35 MPH FOR MUCH OF
THE AFTERNOON...WITH GUSTS NEAR 50 MPH POSSIBLE.  PERSONS TRAVELING TO
THE EAST SHOULD BE PREPARED FOR STRONG WINDS.

SPARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 4:10 PM CDT	Severe Thunderstorm Warning	OAX	Cedar, Pierce	45 min
Apr 12, 5:58 PM CDT	Severe Thunderstorm Warning	OAX	Dodge	32 min
Apr 12, 6:15 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Washington	45 min
Apr 12, 6:31 PM CDT	Tornado Warning	OAX	Washington	34 min
Apr 12, 6:51 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	49 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.