Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 53, NWS Hastings, NE

May 20, 1998Merrick County, Nance County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 20, 1998, 12:28 AM CDT for Merrick County, Nance County, Nebraska. It was in force for 47 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
May 20, 1998, 12:28 AM CDT (05:28 UTC)
Expired
May 20, 1998, 1:15 AM CDT
In force
47 min
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Merrick County, NE, Nance County, NE

What was reported inside it

TimeReportWhereRemark
May 20, 1:00 AM CDTThunderstorm Wind 52Fullerton, 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.

IssuedProductOfficeLasted
May 19, 10:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.5 hours before the alert went out and 137 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 00:00Z on 1998-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2454 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 00:00Z on 1998-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.193958Sfc1 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
2454 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1962 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

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 May 19, 2:07 PM CDT, 10 hours 21 minutes earlier.

Area forecast discussion, May 19, 2:07 PM CDT, 10 hours 21 minutes before
CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
205 PM CDT TUE MAY 18 1998

THE HASTINGS STAFF IS INVOLVED IN ON-STATION TRAINING TODAY AND NO
DETAILED FORECAST DISCUSSION IS AVAILABLE VIA THIS PRODUCT.

PLEASE REFERENCE OMASFDOMA AND TOPAFDTOP FOR FORECAST INFORMATION
REGARDING SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS. THANK YOU.

BREWSTER

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 9:57 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard48 min
May 19, 10:25 PM CDTTornado WarningGIDHoward50 min
May 19, 10:58 PM CDTSevere Thunderstorm WarningGIDDawson47 min
May 19, 11:14 PM CDTTornado WarningGIDHoward46 min
May 19, 11:24 PM CDTSevere Thunderstorm WarningGIDSherman, Valley61 min
May 19, 11:24 PM CDTSevere Thunderstorm WarningGIDBuffalo61 min
May 19, 11:43 PM CDTSevere Thunderstorm WarningGIDGreeley47 min
May 19, 11:55 PM CDTSevere Thunderstorm WarningGIDHoward50 min
May 20, 12:14 AM CDTSevere Thunderstorm WarningGIDHall46 min
May 20, 12:37 AM CDTSevere Thunderstorm WarningGIDAdams53 min
May 20, 12:52 AM CDTSevere Thunderstorm WarningGIDHamilton53 min
May 20, 1:01 AM CDTSevere Thunderstorm WarningGIDClay49 min
May 20, 1:02 AM CDTSevere Thunderstorm WarningGIDHall43 min
May 20, 1:14 AM CDTSevere Thunderstorm WarningGIDPolk, York46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1998Every 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.