Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 30, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 6, 1990, 6:00 PM MDT for Sioux County, Nebraska. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jun 6, 1990, 6:00 PM MDT (00:00 UTC)
- Expired
- Jun 6, 1990, 6:40 PM MDT
- In force
- 40 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Sioux County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 0.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1319 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBFF 070004 COR
SVRBFF
NEC165-070100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
600 PM MDT WED JUN 6 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE PANHANDLE OF NEBRASKA
NORTHERN SIOUX
AT 600 PM MDT A SEVERE THUNDERSTORM WAS 45 MILES WEST OF CHADRON
NEBRASKA OR 10 MILES NORTHWEST OF HARRISON NEBRASKA IN NORTHERN
SIOUX COUNTY OF THE NEBRASKA PANHANDLE MOVING TO THE NORTHEAST AT 35 MPH.
PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER. STAY AWAY FROM AREAS WHERE LOOSE ITEMS
CAN BECOME DANGEROUS FLYING DEBRIS.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING.
A TORNADO WATCH IS IN EFFECT FOR THE NEBRASKA PANHANDLE UNTIL 900 PM
MDT.
SALMONSWhat 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 6, 1:26 PM MDT, 4 hours 34 minutes before
WYZ012-017-062130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 125 PM MDT TUE JUN 5 1990 THUNDERSTORMS HAVE BEGUN TO FORM EARLY THIS AFTERNOON OVER THE LARAMIE MOUNTAINS OF SOUTHEAST WYOMING. CONDITIONS WILL BE RIPE FOR STRONG THUNDERSTORMS THIS AFTERNOON AND EVENING OVER SOUTHEAST WYOMING EAST OF THE LARAMIE MOUNTAINS INCLUDING LARAMIE...PLATTE AND GOSHEN COUNTIES. THE STORMS WILL HAVE THE POTENTIAL FOR HAIL...STRONG GUSTY WINDS...HEAVY RAIN AND DANGEROUS LIGHTNING. PEOPLE IN SOUTHEAST WYOMING SHOULD WATCH THE SKY AND MONITOR LOCAL BROADCASTS FOR NEW DEVELOPMENTS. SCOTT
Special weather statement, Jun 6, 2:19 PM MDT, 3 hours 41 minutes before
WYZ012-017-062230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 215 PM MDT WED JUN 6 1990 ...TORNADO WATCH FOR SOUTHEAST WYOMING... STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTHERN LARAMIE COUNTY ABOUT 20 MILES NORTH OF CHEYENNE. THESE STORMS MOST LIKELY CONTAIN HAIL AND STRONG GUSTY WINDS. THE STORMS HAVE BEEN MOVING EAST AT ABOUT 30 MILES AN HOUR. THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER SOUTHEAST WYOMING THIS AFTERNOON. SOME STORMS MAY BE SEVERE WITH LARGE HAIL...STRONG WINDS AND POSSIBLY TORNADOES. PEOPLE IN SOUTHEAST WYOMING SHOULD WATCH THE SKY AND STAY TUNED TO LOCAL BROADCASTS FOR NEW DEVELOPMENTS. SCOTT
Special weather statement, Jun 6, 4:28 PM MDT, 1 hour 32 minutes before
WYZ012-017-062330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 326 PM MDT WED JUN 6 1990 ...A TORNADO WATCH CONTINUES FOR SOUTHEAST WYOMING UNTIL 9 PM... AT 320 PM MDT SHOWERS AND THUNDERSTORMS CONTINUED ACROSS SOUTHEAST WYOMING. THE STRONGEST STORM WAS LOCATED JUST WEST OF WHEATLAND. ALL STORMS WERE MOVING EAST AT 35 MILES AN HOUR. THUNDERSTORMS WILL CONTINUE ACROSS SOUTHEAST WYOMING THE REST OF THIS EVENING. THESE STORMS WILL PRODUCE FREQUENT LIGHTNING...STRONG WINDS...AND HAIL. SOME STORMS MAY PRODUCE TORNADOS. IF YOU DO OBSERVE A TORNADO...TAKE SHELTER IMMEDIATELY. MENTZER
Special weather statement, Jun 6, 4:30 PM MDT, 1 hour 30 minutes before
WYZ012-017-062330- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE CHEYENNE WY 426 PM MDT WED JUN 6 1990 ...A TORNADO WATCH CONTINUES FOR SOUTHEAST WYOMING UNTIL 9 PM... AT 420 PM MDT SHOWERS AND THUNDERSTORMS CONTINUED ACROSS SOUTHEAST WYOMING. THE STRONGEST STORM WAS LOCATED JUST WEST OF WHEATLAND. ALL STORMS WERE MOVING EAST AT 35 MILES AN HOUR. THUNDERSTORMS WILL CONTINUE ACROSS SOUTHEAST WYOMING THE REST OF THIS EVENING. THESE STORMS WILL PRODUCE FREQUENT LIGHTNING...STRONG WINDS...AND HAIL. SOME STORMS MAY PRODUCE TORNADOS. IF YOU DO OBSERVE A TORNADO...TAKE SHELTER IMMEDIATELY. MENTZER
Special weather statement, Jun 6, 5:32 PM MDT, 28 minutes before
NEZ001-005-070030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 0530 PM MDT WED JUN 6 1990 ...THUNDERSTORMS MOVING INTO THE CENTRAL NEBRASKA PANHANDLE... AT 0525 PM MDT...A STRONG THUNDERSTORMS MOVING INTO SCOTTS BLUFF AND SOUTHERN SIOUX COUNTIES OF THE NEBRASKA PANHANDLE. THE STORM IS LOCATED 15 MILES WEST OF SCOTTBLUFF OF SCOTTS BLUFF COUNTY. THE STORM IS MOVING NORTHEAST AT 35 MPH. BRIEF HEAVY RAIN...GUSTY WIND...DANyGEROUS LIGHTNING...AND SOME SMALL HAIL IS LIKELY WITH THIS THUNDERSTORMS AS IT MOVES THROUGH SCOTTS BLUFF AND SOUTHERN SIOUX COUNTIES OF THE WESTERN NEBRASKA PANHANDLE UNTIL 630 PM MDT. SALMONS
Special weather statement, Jun 6, 5:57 PM MDT, 3 minutes before
WYZ012-017-070130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 555 PM MDT WED JUN 6 1990 ...TORNADO WATCH FOR SOUTHEAST WYOMING UNTIL 9PM TONIGHT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 9PM TONIGHT FOR PARTS OF SOUTHEASTERN WYOMING. AT 545 PM SCATTERED THUNDERSTORMS EXTENDED FROM THE MOUNTAINS WEST OF CHEYENNE AND CHUGWATER...WHICH IS ABOUT 20 MILES SOUTH OF WHEATLAND... NORTHEAST TO THE NEBRASKA BORDER. THESE STORMS WERE MOVING NORTHEAST ABOUT 30 MILES AN HOUR. BETWEEN 445 PM AND 515 PM THIS EVENING A STORM PRODUCED HAIL BETWEEN ONE QUARTER OF AN INCH AND THREE QUARTERS OF AN INCH IN DIAMETER APPROXIMATELY 20 MILES NORTHEAST OF WHEATLAND AT GUERNSEY...AND$ ABOUT 20 MILES SOUTH OF LUSK NEAR JAY EM. < PEOPLE IN SOUTHEAST WYOMING SHOULD KEEP ABREAST OF THE LATEST DEVELOPMENTS. BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES. CGB
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 8:12 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 57 min |
| Jun 6, 10:12 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 28 min |
| Jun 7, 1:53 AM MDT | Severe Thunderstorm Warning | CYS | Banner | 67 min |
| Jun 7, 2:07 AM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill, Scotts Bluff | 48 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990
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.