Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 84, NWS Hastings, NE

May 22, 1998Thayer County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 22, 1998, 2:31 AM CDT for Thayer County, Nebraska. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 22, 1998, 2:31 AM CDT (07:31 UTC)
Expired
May 22, 1998, 3:00 AM CDT
In force
29 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Thayer County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 7.5 hours before the alert went out and 164 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 1998-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 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 1998-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 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
66 J/kg
Mixed-layer CIN
-295 J/kg
Mixed-layer LCL
905 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
484 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.6

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 21, 2:40 PM CDT, 11 hours 51 minutes earlier.

Area forecast discussion, May 21, 2:40 PM CDT, 11 hours 51 minutes before
CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
240 PM CDT THU MAY 21 1998

...MAIN FOCUS WILL BE PERIODS OF CONVECTION OVER THE NEXT FEW
   DAYS...

THIS MORNINGS 12Z RUNS SHOWING SOME INTERESTING DIFFERENCES BETWEEN
THE ETA AND NGM. BOTH SHOW TROF INCR NEG TILT WITH TIME INTO THE REGION
WHICH WILL HELP ENHANCE CONVECTION ACROSS THE HSI CWA. A SERIES OF SHORT
WAVES WILL AFFECT OUR CWA ALLOWING FOR A CHANCE OF PCPN THRU THE ENTIRE
FCST PERIODS. ONCE AGAIN THE NGM SEEMS TOO FAR NORTH WITH SURFACE FEATURES.
WITH NGM SHOWING ITS TYPICAL BIASES AGAIN...ETA SEEMS TO BE MODEL OF CHOICE.
T-SEC SHOWING STRONG UVV BOTH LATE TONITE & SAT MORNING...THEREFORE HIGHER
POPS DURING THESE PERIODS ARE PROBABLY WARRANTED. WINDS LOOK TO REMAIN FOR
THE MOST OUT OF THE SOUTHEAST 10-20 THRU SAT.

GRI CC 058/085/057/078 535
HEB CC 060/084/057/077 535
ODX CC 058/082/056/075 535
LXN CC 060/085/055/077 634
BEL CC 062/087/059/080 646

DEE

In the hours before

Special weather statement, May 22, 1:15 AM CDT, 1 hour 16 minutes before
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Local storm report, May 22, 1:34 AM CDT, 57 minutes before
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Local storm report, May 22, 1:47 AM CDT, 44 minutes before
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Local storm report, May 22, 1:47 AM CDT, 44 minutes before
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Special weather statement, May 22, 2:00 AM CDT, 31 minutes before
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Special weather statement, May 22, 2:00 AM CDT, 31 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 7:22 PM CDTTornado WarningGIDPhelps38 min
May 21, 7:27 PM CDTSevere Thunderstorm WarningGIDGosper33 min
May 21, 7:32 PM CDTTornado WarningGIDGosper28 min
May 21, 7:40 PM CDTTornado WarningGIDKearney50 min
May 21, 7:59 PM CDTTornado WarningGIDFurnas, Gosper, Phelps31 min
May 21, 8:30 PM CDTTornado WarningGIDKearney, Phelps30 min
May 21, 9:01 PM CDTTornado WarningGIDAdams, Kearney29 min
May 21, 9:01 PM CDTTornado WarningGIDPhelps29 min
May 21, 9:32 PM CDTSevere Thunderstorm WarningGIDKearney28 min
May 21, 9:42 PM CDTTornado WarningGIDKearney33 min
May 21, 10:14 PM CDTTornado WarningGIDAdams, Kearney31 min
May 21, 10:17 PM CDTSevere Thunderstorm WarningGIDHall43 min
May 21, 10:23 PM CDTSevere Thunderstorm WarningGIDPolk, York37 min
May 21, 10:30 PM CDTTornado WarningGIDGosper45 min
May 21, 10:47 PM CDTSevere Thunderstorm WarningGIDAdams43 min
May 21, 11:02 PM CDTSevere Thunderstorm WarningGIDHall, Hamilton, Merrick43 min
May 21, 11:02 PM CDTSevere Thunderstorm WarningGIDBuffalo43 min
May 21, 11:17 PM CDTTornado WarningGIDGosper, Phelps43 min
May 21, 11:21 PM CDTSevere Thunderstorm WarningGIDPolk, York39 min
May 21, 11:24 PM CDTSevere Thunderstorm WarningGIDClay36 min
May 21, 11:40 PM CDTSevere Thunderstorm WarningGIDBuffalo35 min
May 21, 11:44 PM CDTSevere Thunderstorm WarningGIDHall, Hamilton46 min
May 21, 11:57 PM CDTTornado WarningGIDKearney, Phelps48 min
May 22, 12:01 AM CDTSevere Thunderstorm WarningGIDClay, Fillmore, York49 min
May 22, 12:47 AM CDTSevere Thunderstorm WarningGIDFillmore33 min
May 22, 12:48 AM CDTSevere Thunderstorm WarningGIDAdams, Franklin, Kearney, Webster47 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; the sounding from the Mesonet's radiosonde archive.