Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 7, NWS Hastings, NE

April 19, 1997Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 19, 1997, 6:26 PM CDT for Dawson County, Nebraska. It was in force for 34 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: Apr 19, 1997, 6:26 PM CDT (23:26 UTC)
Expired: Apr 19, 1997, 7:00 PM CDT
In force: 34 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Dawson County, NE

The radar

The Grand Island radar (KUEX), 131 km from the middle of the area, began a volume at 23:30 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.4 hours before the alert went out and 72 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: 1181 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRI 192327 RRA
SVRGRI
NEC047-200000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
626 PM CDT SAT APR 19 1997
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL NEBRASKA
 
   ...WESTERN DAWSON COUNTY
 
HAIL UP TO AN INCH IN DIAMATER MAY FALL IN WESTERN DAWSON
COUNTY...MAINLY SOUTH OF I-80 THROUGH 7 PM.
 
RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 30 MILES WEST OF LEXINGTON
OR JUST WEST OF GOTHENBERG.  THIS STORM IS MOVING SOUTHEAST AT 25 MILES
AN HOUR AND SHOULD REMAIN ALONG OR JUST SOUTH OF INTERSTATE 80.
 
THOSE TRAVELINJG ALONG I-80 IN THE WARNING AREA SHOULD BE PREPARED FOR
THIS SEVERE STORM WHICH WILL CONTAIN LARGE HAIL AND GUSTY WINDS.
 
KISNER

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 Apr 19, 3:06 PM CDT, 3 hours 20 minutes earlier.

Area forecast discussion, Apr 19, 3:06 PM CDT, 3 hours 20 minutes before

CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE....CORRECTED BELOIT CCF POPS
305 PM CDT SAT APR 19 1997

THUNDERSTORM CHANCES MAIN CHALLENGE THIS PERIOD.

18Z SFC ANALYSIS SHOWED LOW PRESSURE VCNTY AIA WITH WARM FRONT SE INTO
CNTRL KS.  MSTR AXIS ALG WARM FRONT VTN-HLC-P28.  VSBL SATELLITE/KGLD
SHOW TCU OVER NE CO/NW KS VCNTY OF DRY LINE IN AREA OF BEST TEMP/MSTR
ADVECTION AND JUST WEST OF INSTAB AXIS AS PER ADAP. IF THESE DVLP IT
APPEARS THAT THEY WOULD MOVE VERY LITTLE EWD AS TKNS PATTERN INDCTS
MORE OF A SSE TREND.  MEANWHILE SHOWERS ARE CONTINUING OVER NORTH CNTRL
INTO EAST CNTRL NEBR IN DECENT WAA AHEAD OF PROFILER INDCTD SHORT WAVE.
TEMP DISCONTINUITY JUST SW OF THESE SHOWERS COULD PROVE TO BE FOCUSING
MECHANISM FOR STORMS EARLY THIS EVE AND WILL MONITOR.

IN GENERAL...UPPER FLOW FAIRLY ZONAL WITH NUMEROUS IMPULSES ZIPPING
THRU.  MODELS CONTINUE TO HAVE DIFFICULT TIME RESOLVING THESE AND
DISAGREEMENTS PERSIST BOTH BETWEEN MODELS AND ALSO FROM RUN TO RUN.
>
WHILE YESTERDAYS FORECAST OF AFTN TSTMS HAS YET TO COME TO FRUITION,
MODELS TODAY DO AGREE THAT SIGNIFICANT INSTAB AND LIFT ARE TO BE PRESENT
TNGT ACROSS CWA.  LOOKING AT CURRENT WV IMGRY, THIS TIME MODELS MAY
BE A LITTLE SLOW WITH WAVE COMING OUT OF ROCKIES.  ALL IN ALL...WITH
POSITION OF FRONTAL BNDRY AND PROXIMITY AND TIMING OF S/W...AREA SHUD
SEE BOUT OF TSTMS LATE EVENING WITH DECENT RAIN FOR ERN PARTS LATE
TNGT INTO SUNDAY MORNING.   850-700 MB QVEC CONVG INDCTS SUSTAINED
WAA OVER SE FA LATE TNGT IN ADVANCE OF DVLPG SFC LOW.  LATEST SWODY1
HAS MOVED SLGT RISK BACK WEST OVER ALL OF CWA TO COVER MSTR AXIS.
GUID POPS ACCEPTED TNT WITH LOWEST NUMBERS OVER KS.

BELIEVE THERE WILL BE A BREAK IN PCPN SUNDAY AFTN AS CONVECTION FOCUSES
FARTHER SE.  CLOUDS MAY LINGER INTO AFTN HWVR IN RESIDUAL MSTR AND
MDT LOW LVL CAA BEHIND SFC/H8 LOW.  WILL SPLIT DIFFERENCE OF FAN/FWC
TEMPS SUNDAY. BIGGEST DISPARITY AT GRI WHERE FAN IS TOO WARM AHEAD OF
STILL UN-CLOSED H8 LOW AT 12Z WHILE FWC TOO COOL OVERLY-SATURATED AMS.

TSTM CHANCES RESUME LATE SUNDAY NIGHT WEST INTO MONDAY AS NEXT WAVE
PROGGED TO MOVE INTO AREA.  MODELS TIMING IN DOUBT AS PER KMARD DISCN
QPFSRD AND MOISTURE COULD STILL BE LIMITED...BUT ATTM WILL OPT FOR
CONTINUATION OF SMALL POPS IN UNSETTLED WX PATTERN.  WILL AGAIN COMPRMS
GUID TEMPS FOR OUT PERIODS.
>
GRI EB 044/062/041/065 6413
ODX EB 042/061/040/065 6413
LXN BB 042/065/043/066 5232
HBR EB 046/064/042/066 6413
BEL EB 047/067/045/068 4313

DROZD

Nearby

Severe Thunderstorm Warnings in Nebraska, 1997 Every severe thunderstorm warning in 1997

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.