Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 39, NWS Cheyenne, WY

June 19, 1997Banner County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 19, 1997, 3:15 PM MDT for Banner County, Nebraska. It was in force for 35 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
Jun 19, 1997, 3:15 PM MDT (21:15 UTC)
Expired
Jun 19, 1997, 3:50 PM MDT
In force
35 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Banner County, NE

The radar

The Cheyenne radar (KCYS), 101 km from the middle of the area, began a volume at 21:16 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
Jun 19, 2:15 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.3 hours before the alert went out and 191 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, Denver, CO at 12:00Z on 1997-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1997-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2563 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCYS 192115 RRA
SVRCYS
NEC007-192150-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
315 PM MDT THU JUN 19 1997

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHEASTERN BANNER COUNTY IN WESTERN NEBRASKA PANHANDLE

* UNTIL 350 PM MDT

* SOME AFFECTED LOCATIONS INCLUDE
  OPEN COUNTRY 20 SOUTHEAST OF HARRISBURG

* AT 314 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 15 MILES SOUTHEAST
  OF HARRISBURG.  THIS STORM WAS MOjVING EAST AT 20 MPH.

A TORNADO WATCH IS ALSO IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
 
 
THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.

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.

In the hours before

Special weather statement, Jun 19, 9:49 AM MDT, 5 hours 26 minutes before
WYZ059>070-NEZ001>003-019>021-054-055-200000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
0950 AM MDT THU JUN 19 1997

THE SEVERE WEATHER POTENTIAL IN THE CHEYENNE NWS COUNTY WARNING AREA
IS MEDIUM TODAY...ESPECIALLY IN THE NEBRASKA PANHANDLE.

SPOTTER ACTIVATION MAY BE REQUESTED...MAINLY IN THE PANHANDLE.

DISCUSSION...DRYER AIR HAS MOVED INTO SOUTHEAST WYOMING BUT SOIL
MOISTURE FROM YESTERDAY ALONG WITH A COLD FRONT WILL ACT TO ,TRIGGER
THUNDERSTORMS THIS AFTERNOON AND EVENING. A FEW OF THESE STORMS MAY
PRODUCE LARGE HAIL...DAMAGING WINDS...AND HEAVY RAIN. THE BEST CHANCE
FOR SEVERE STORMS WILL BE IN THE NEBRASKA PANHANDLE.

WCJIN-WYSE-WYNE

JLA/LRE
Special weather statement, Jun 19, 9:50 AM MDT, 5 hours 25 minutes before
WYZ059>070-NEZ001>003-019>021-054-055-200000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
0950 AM MDT THU JUN 19 1997

THE SEVERE WEATHER POTENTIAL IN THE CHEYENNE NWS COUNTY WARNING AREA
IS MEDIUM TODAY...ESPECIALLY IN THE NEBRASKA PANHANDLE.

SPOTTER ACTIVATION MAY BE REQUESTED...MAINLY IN THE PANHANDLE.

DISCUSSION...DRYER AIR HAS MOVED INTO SOUTHEAST WYOMING BUT SOIL
MOISTURE FROM YESTERDAY ALONG WITH A COLD FRONT WILL ACT TO TRIGGER
THUNDERSTORMS THIS AFTERNOON AND EVENING. A FEW OF THESE STORMS MAY
PRODUCE LARGE HAIL...DAMAGING WINDS...AND HEAVY RAIN. THE BEST CHANCE
FOR SEVERE STORMS WILL BE IN THE NEBRASKA PANHANDLE.

WCJIN-WYSE-WYNE

JLA/LRE
Special weather statement, Jun 19, 2:30 PM MDT, 45 minutes before
WYZ060-068>070-NEZ001>003-019>021-054-055-190300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
230 PM MDT THU JUN 19 1997

A TORNADO WATCH HAS BEEN ISSUED FOR THE NEBRASKA PANHANDLE AND PARTS
OF SOUTHEAST WYOMING AND IS VALID UNTIL 9 PM.

COUNTIES IN THE PANHANDLE INCLUDE SIOUX...DAWES...BOX BUTTE...MORRILL
...CHEYENNE...SCOTTS BLUFF...BANNER AND KIMBALL.  SOME CITIES INCLUDED
IN THE WATCH ARE HARRISON...CHADRON...ALLIANCE...BRIDGEPORT...SIDNEY
...KIMBALL...HARRISBURG...AND SCOTTSBLUFF/GERING.

COUNTIES IN WYOMING INCLUDED IN THE WATCH ARE GOSHEN...NIOBRARA...
EASTERN LARAMIE COUNTY...EASTERN PLATTE...AND EASTERN CONVERSE
COUNTIES.  SOME CITIES AND TOWNS IN THE WATCH ARE LUSK...TORRINGTON...
WHEATLAND...AND PINE BLUFFS.

A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE.  AN UPPER LEVEL DISTURBANCE MOVING THROUGH THE AREA
WILL RESULT IN SOME STRONG THUNDERSTORMS. SOME OF THESE STORMS COULD
COULD PRODUCE LARGE HAIL AND TORNADOES ALONG WITH HEAVY RAIN.

PEOPLE IN THE WATCH AREA SHOULD BE ALERT TO APPROACHING STORMS AND
BE PREPARED TO SEEK SHELTER.  LISTEN TO NOAA WEATHER RADIO OR YOUR
LOCAL TELEVISION AND RADIO STATIONS AS WELL AS YOUR CABLE TELEVISION
PROVIDER FOR LATER STATEMENTS AND WARNING.

WCJIN-WYNE-WYSE
LRE
Special weather statement, Jun 19, 2:36 PM MDT, 39 minutes before
WYZ060-068>070-NEZ001>003-019>021-054-055-190300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
230 PM MDT THU JUN 19 1997

A TORNADO WATCH HAS BEEN ISSUED FOR THE NEBRASKA PANHANDLE AND PARTS
OF SOUTHEAST WYOMING AND IS VALID UNTIL 9 PM.

COUNTIES IN THE PANHANDLE INCLUDE SIOUX...DAWES...BOX BUTTE...MORRILL
...CHEYENNE...SCOTTS BLUFF...BANNER AND KIMBALL.  SOME CITIES INCLUDED
IN THE WATCH ARE HARRISON...CHADRON...ALLIANCE...BRIDGEPORT...SIDNEY
...KIMBALL...HARRISBURG...AND SCOTTSBLUFF/GERING.

COUNTIES IN WYOMING INCLUDED IN THE WATCH ARE GOSHEN...NIOBRARA...
EASTERN LARAMIE COUNTY...EASTERN PLATTE...AND EASTERN CONVERSE
COUNTIES.  SOME CITIES AND TOWNS IN THE WATCH ARE LUSK...TORRINGTON...
WHEATLAND...AND PINE BLUFFS.

A MOIST AND UNSTABLE AIRMASS IS IN PLACE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE.  AN UPPER LEVEL DISTURBANCE MOVING THROUGH THE AREA
WILL RESULT IN SOME STRONG THUNDERSTORMS. SOME OF THESE STORMS COULD
COULD PRODUCE LARGE HAIL AND TORNADOES ALONG WITH HEAVY RAIN.

PEOPLE IN THE WATCH AREA SHOULD BE ALERT TO APPROACHING STORMS AND
BE PREPARED TO SEEK SHELTER.  LISTEN TO NOAA WEATHER RADIO OR YOUR
LOCAL TELEVISION AND RADIO STATIO0NS AS WELL AS YOUR CABLE TELEVISION
PROVIDER FOR LATER STATEMENTS AND WARNING.

WCJIN-WYNE-WYSE
LRE

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 1:45 PM MDTSevere Thunderstorm WarningCYSBanner50 min
Jun 19, 3:24 PM MDTSevere Thunderstorm WarningCYSCheyenne46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1997Every 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.