Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 4, NWS Hastings, NE

March 29, 1998Nuckolls County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Mar 29, 1998, 11:29 PM CST for Nuckolls County, Nebraska. It was in force for 31 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
Mar 29, 1998, 11:29 PM CST (05:29 UTC)
Expired
Mar 30, 1998, 12:00 AM CST
In force
31 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Nuckolls County, NE

The radar

The Grand Island radar (KUEX), 37 km from the middle of the area, began a volume at 05:30 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 29, 10:45 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.5 hours before the alert went out and 190 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 1998-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1000 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 1998-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.1939587897117Sfc1 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
1000 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1547 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

235 
WUUS1 KGRI 300530 RRA
SVRGRI
NEC129-300600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1129 PM CST SUN MAR 29 1998
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL NEBRASKA
 
   ...NUCKOLLS COUNTY
 
AT 1125 PM CST...HASTINGS RADAR INDICTED A SEVERE THUNDERSTORM 40 MILES
SOUTH OF HASTINGS OR 5 MILES SOUTH OF SUPERIOR MOVING TO THE NORTHEAST
AT 45 MPH.
 
THIS STORM HAS HAD A HISTORY OF PRODUCING HAIL UP TO AN INCH IN DIAMETER
AND WIND GUSTS TO 50 MPH.
 
PEOPLE IN THE COMMUNITIES OF SUPERIOR...NELSON AND NORA SHOULD SEEK
SHELTER NOW.
 
PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER FOR
PROTECTION FROM DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DANGEROUS LIGHTNING.
 
PURDY

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 Mar 29, 3:58 PM CST, 7 hours 31 minutes earlier.

Area forecast discussion, Mar 29, 3:58 PM CST, 7 hours 31 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
358 PM CST SUN MAR 29 1998

SHORT TERM FCST CONCERN CENTERS ON ADVANCE OF COLD AIR MASS OVER
WRN NEB INTO GID CWA.

DRY LN JUST E OF GID CWA AT 20Z MARKS WRN XTNT OF LO LVL MSTR AND
XPCTD CONVN.  18Z SFC ANLYS HD ELONGATED LO NE CO TO NE NEB AND PRES
TRND IN PAST 2 HRS SHOWS INTENSIFICATION OVR NERN NEB.  PRESENT TRND
CLOSEST TO NGM/AVN FCST WHILE ETA HOLDS SFC LO FURTHER W.  SATL
SHOWS LO CLD MASS AND CD AMS N OF SNY-LBF-YNK LN WTH NO INDCN OF
SRLY DRIFT ATTM.  APRS LO CLDS AND CD ADVN WL RCH NWRN 1/2 OF CWA
BY DAWN AND IT WL SPREAD THRUT CWA BY NOON MON.

PREFER NGM SFC FCST IN SHT TERM SINCE IT HS HNDLD THE NE NEB LO THE
BEST.  AVN APRS RSNBL AS WELL.  NGM PCPN PTRN LOOKS MUCH TOO WK
CONSIDERING STRENGTH AND SLO DRIFT OF GRT BASIN UPR SYS. XPCT PCPN
TO CHG TO SNOW IN NW CWA AT TIMES MON...AND THRUT CWA MON NGT.

ALL MDLS TAKE A SIMILAR TRACK WTH SYS BUT STGR NGM/AVN SOLN PREFERRED.
MOST OF CWA IN FOR SOLID CLD CVR AND SHWRS SPAWNED BY UPR SYS INTO
MON NGT AND BACKWASH TUE. SEEMS PRUDENT TO AIM TWD HIGHER FAN POPS
AND TRIM DAYTIME TEMPS AT LEAST 5 DEGS.

CORRECTED
GRI RS 039/045/032/042 -474
ODX SS 034/039/030/042 3573
LXN RS 035/040/030/043 3573
HBR RW 040/047/034/043 0475
BEL WW 042/050/035/043 0475

SCHURR

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; radar from the NEXRAD Level II archive.