Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 182, NWS Hastings, NE

June 23, 1998Sherman County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 23, 1998, 4:09 AM CDT for Sherman County, Nebraska. It was in force for 51 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: Jun 23, 1998, 4:09 AM CDT (09:09 UTC)
Expired: Jun 23, 1998, 5:00 AM CDT
In force: 51 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Sherman County, NE

The radar

The Grand Island radar (KUEX), 110 km from the middle of the area, began a volume at 09:13 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.

What was reported inside it

Time	Report	Where	Remark
Jun 23, 4:22 AM CDT	Thunderstorm Wind 52	Loup City, 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 23, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.2 hours before the alert went out and 136 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: 1134 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 1509 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 174 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 6.4

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.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 1:30 AM CDT, 2 hours 39 minutes earlier.

Area forecast discussion, Jun 23, 1:30 AM CDT, 2 hours 39 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 1:27 AM CDT	Severe Thunderstorm Warning	GID	Webster	33 min
Jun 23, 6:24 PM CDT	Severe Thunderstorm Warning	GID	Rooks	36 min
Jun 23, 6:42 PM CDT	Severe Thunderstorm Warning	GID	Osborne	48 min
Jun 23, 6:59 PM CDT	Severe Thunderstorm Warning	GID	Smith	31 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; radar from the NEXRAD Level II archive.