Alert archive / Nebraska / Flash Flood Warnings in 1997
Flash Flood Warning 6, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jun 2, 1997, 10:55 PM MDT for Banner County, Morrill County, Scotts Bluff County, Nebraska. It was in force for 3 hr. 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 2, 1997, 10:55 PM MDT (04:55 UTC)
- Expired
- Jun 3, 1997, 2:00 AM MDT
- In force
- 3 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Banner County, NE, Morrill County, NE, Scotts Bluff County, NE
The radar
The Cheyenne radar (KCYS), 127 km from the middle of the area, began a volume at 04:57 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
Denver, CO (KDNR), launched 00:00Z, 4.9 hours before the alert went out and 205 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
- 1 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 2299 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 25 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 KCYS 030456 FFWCYS NEC007-123-157-030800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...EXTENSION NATIONAL WEATHER SERVICE CHEYENNE WY 1055 PM MDT MON JUN 2 1997 * FLASH FLOOD WARNING HAS BEEN EXTENDED FOR SCOTTS BLUFF COUNTY IN WESTERN NEBRASKA PANHANDLE MORRILL COUNTY IN WESTERN NEBRASKA PANHANDLE BANNER COUNTY IN WESTERN NEBRASKA PANHANDLE * UNTIL 200 AM MDT TUE JUN 3 1997 * SOME AFFECTED LOCATIONS INCLUDE MOST DRAINAGES AND TOWNS IN THE WARNED COUNTIES * CAUSE AND EFFECT RAIN WAS STARTING TO TAPER OFF AND DECREASE ACROSS THE CENTRAL PART OF THE PANHANDLE AT 1050 PM. HOWEVER...RUNOFF FROM THIS EVENING'S RAINFALL WILL CONTINUE TO CAUSE FLOODING PROBLEMS IN THE WARNED AREA...ESPECIALLY IN SCOTTS BLUFF AND MORRILL COUNTIES. RADAR ESTIMATED ABOUT 1 TO 3 INCHES OF RAIN FELL ACROSS THE REGION SINCE MID AFTERNOON. A FEW SPOTS...SUCH AS JUST EAST OF MINATARE AND JUST NORTH OF BRIDGEPORT...SUPPOSEDLY RECEIVED AROUND 4 INCHES OF RAIN ACCORDING TO RADAR. MAJOR FLOODING CONTINUED IN PARTS OF SCOTTS BLUFF AND MORRILL COUNTIES ...ESPECIALLY IN THE BRIDGEPORT AREA WHERE EVACUATIONS HAVE TAKEN PLACE THIS EVENING. ALMOST ALL COUNTY ROADS WERE CLOSED IN THESE TWO COUNTIES. MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. SHALLOW...SWIFTLY FLOWING WATER CAN WASH A CAR FROM A ROADWAY. ALSO...IT IS HARDER TO RECOGNIZE THE PROBLEMS OF FLASH FLOODING AT NIGHT...SO DON/T DRIVE ABOUT UNLESS ABSOLUTELY NECESSARY. JAD
What forecasters said that day
The local office's own words before this flash flood 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 2, 5:48 PM MDT, 5 hours 7 minutes before
WYZ059-060-064>070-030045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 548 PM MDT MON JUN 2 1997 ...A TORNADO WATCH REMAINS IN EFFECT UNTIL 7 PM FOR MUCH OF EASTERN WYOMING... AT 540 PM...MOST OF THE THUNDERSTORMS WERE CONCENTRATED IN A BAND FROM SOUTHWEST OF LARAMIE NORTHEASTWARD INTO FAR SOUTHERN GOSHEN COUNTY. THE BAND OF STORMS WAS DRIFTING EAST...WHILE INDIVIDUAL STORMS WERE MOVING NORTHEAST AT 20 TO 25 MPH. CONDITIONS CONTINUE TO BE FAVORABLE FOR THE DEVELOPMENT OF STRONG AND POSSIBLY SEVERE THUNDERSTORMS ACROSS MAINLY SOUTHEAST WYOMING THROUGH 7 PM. A BRIEF FUNNEL CLOUD WAS SIGHTED JUST SOUTH OF LARAMIE AROUND 515 PM. IT DISSIPATED QUITE RAPIDLY AFTER FORMING. RESIDENTS OF EASTERN WYOMING SHOULD REMAIN ALERT TO STORMS MOVING INTO YOUR AREA THIS EVENING. BE READY TO MOVE INDOORS TO A SAFE LOCATION IF THREATENING WEATHER APPROACHES. WCJIN-WYSE-WYNE JAD
Special weather statement, Jun 2, 6:54 PM MDT, 4 hours 1 minute before
WYZ059-060-062>070-030135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 654 PM MDT MON JUN 2 1997 ...THE TORNADO WATCH WILL END AT 7 PM FOR MOST OF EASTERN WYOMING EXCEPT IN LARAMIE COUNTY... STORMS WERE CONCENTRATING IN LARAMIE COUNTY IN FAR SOUTHEAST WYOMING AT 650 PM...AND SO THE TORNADO WATCH HAS BEEN EXTENDED UNTIL 9 PM JUST FOR LARAMIE COUNTY. ELSEWHERE ACROSS EAST CENTRAL AND SOUTHEAST WYOMING...THE THREAT OF SEVERE THUNDERSTORMS HAS ENDED...AND SO THE WATCH HAS BEEN CANCELLED. A LINE OF STRONG TO SEVERE THUNDERSTORMS EXTENDED ACROSS WESTERN AND NORTHERN LARAMIE COUNTY AT 650 PM. THE STORMS WERE MOVING EAST OR SOUTHEAST AROUND 20 TO 25 MPH. HEAVY RAIN...HAIL AND POSSIBLY EVEN A TORNADO ARE POSSIBLE IN LARAMIE COUNTY UNTIL 9 PM. ONCE AGAIN...THE TORNADO WATCH IS OVER FOR WYOMING EXCEPT IN THE FAR SOUTHEAST. WCJIN-WYSE-WYNE JAD
Special weather statement, Jun 2, 8:27 PM MDT, 2 hours 28 minutes before
WYZ069-070-030300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 827 PM MDT MON JUN 2 1997 ...THE TORNADO WATCH FOR LARAMIE COUNTY HAS BEEN CANCELLED AS OF 830 PM... STORMS HAVE WEAKENED CONSIDERABLY SINCE 745 PM ACROSS LARAMIE COUNTY...AND SO THE TORNADO WATCH HAS BEEN CANCELLED. THE STRONGEST STORMS AT 825 PM WERE LOCATED OVER FAR EASTERN LARAMIE COUNTY MOVING EAST AT 25 MPH. HEAVY RAIN CONTINUES TO BE THE MAIN HAZARD ACROSS LARAMIE COUNTY THE REST OF THIS EVENING...ESPECIALLY IN THE NORTHEAST PART WHERE A SMALL STREAM FLOOD ADVISORY CONTINUES UNTIL 10 PM. ONCE AGAIN...THE TORNADO WATCH FOR LARAMIE COUNTY HAS BEEN CANCELLED. WCJIN-WYSE JAD
Special weather statement, Jun 2, 9:12 PM MDT, 1 hour 43 minutes before
NEZ001>003-019>021-054-055-030345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 912 PM MDT MON JUN 2 1997 ...THE SEVERE THUNDERSTORM WATCH FOR THE PANHANDLE HAS BEEN CANCELLED AS OF 9 PM... STORMS HAVE DECREASED IN INTENSITY ACROSS MUCH OF THE PANHANDLE SINCE 8 PM...AND SO THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. A FEW STRONG STORMS WERE STILL LINGERING OVER NORTHERN CHEYENNE COUNTY NORTH OF SIDNEY AT 905 PM. A LARGE AREA OF RAIN AND WEAKER THUNDERSTORMS WAS LOCATED OVER MUCH OF THE PANHANDLE HOWEVER. HEAVY RAIN AND SOME FLOODING WILL CONTINUE TO BE THE MAIN HAZARDS FROM THESE STORMS. A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM FOR SCOTTS BLUFF...BANNER AND MORRILL COUNTIES. ONCE AGAIN...THE SEVERE THUNDERSTORM WATCH FOR THE PANHANDLE HAS BEEN CANCELLED. JAD
Special weather statement, Jun 2, 9:13 PM MDT, 1 hour 42 minutes before
NEZ001>003-019>021-054-055-030345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 912 PM MDT MON JUN 2 1997 ...THE SEVERE THUNDERSTORM WATCH FOR THE PANHANDLE HAS BEEN CANCELLED AS OF 9 PM... STORMS HAVE DECREASED IN INTENSITY ACROSS MUCH OF THE PANHANDLE SINCE 8 PM...AND SO THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. A FEW STRONG STORMS WERE STILL LINGERING OVER NORTHERN CHEYENNE COUNTY NORTH OF SIDNEY AT 905 PM. A LARGE AREA OF RAIN AND WEAKER THUNDERSTORMS WAS LOCATED OVER MUCH OF THE PANHANDLE HOWEVER. HEAVY RAIN AND SOME FLOODING WILL CONTINUE TO BE THE MAIN HAZARDS FROM THESE STORMS. A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM FOR SCOTTS BLUFF...BANNER AND MORRILL COUNTIES. ONCE AGAIN...THE SEVERE THUNDERSTORM WATCH FOR THE PANHANDLE HAS BEEN CANCELLED. JAD
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 6:38 PM MDT | Severe Thunderstorm Warning | CYS | Banner | 32 min |
| Jun 2, 7:12 PM MDT | Flash Flood Warning | CYS | Banner, Morrill, Scotts Bluff | 4 hr |
Nearby
Flash Flood Warnings in Nebraska, 1997Every flash flood 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.