Alert archive / Nebraska / Flash Flood Warnings in 2007
Flash Flood Warning 30, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Jun 12, 2007, 1:10 AM MDT for Chase County, Nebraska. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 12, 2007, 1:10 AM MDT (07:10 UTC)
- Expired
- Jun 12, 2007, 7:15 AM MDT
- In force
- 6 hr
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Chase County, NE
The radar
The Goodland radar (KGLD), 129 km from the middle of the area, began a volume at 07:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 12, 1:41 AM MDT | FLASH FLOOD | 5 W Imperial, NE | FLOODING ON U.S. HIGHWAY 6. DEPTH AND EXTENT OF FLOOD WATER UNKNOWN. LOCATION ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.2 hours before the alert went out and 114 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
- 2552 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLBF 120712 FFWLBF NEC029-121315- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 110 AM MDT TUE JUN 12 2007 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * FLASH FLOOD WARNING FOR... CHASE COUNTY IN SOUTHWEST NEBRASKA... THIS INCLUDES THE CITY OF IMPERIAL... * UNTIL 715 AM MDT * AT 100 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM AN INTENSE THUNDERSTORM OVER CENTRAL CHASE COUNTY. HEAVY RAINFALL FROM SCATTERED THUNDERSTORMS ELSEWHERE IN CHASE COUNTY ARE EXPECTED TO CONTINUE OVERNIGHT AS A MAJOR FLOOD CONTINUES TO DEVELOP ACROSS PARTS OF SOUTHWEST NEBRASKA. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAMAR...IMPERIAL AND CHAMPION. 6 TO 8 INCHES OF RAINFALL IS ESTIMATED TO HAVE FALLEN ACROSS PARTS OF WESTERN AND CENTRAL CHASE COUNTY. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA THROUGH 4 AM MDT. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED NUMEROUS COUNTY ROADS UNDER WATER IN CHASE COUNTY. CHASE COUNTY OFFICIALS STRONGLY DISCOURAGE TRAVEL ON ANY COUNTY OR SECONDARY ROADS FOR THE REMAINDER OF TONIGHT...AS ROADS ARE UNDERWATER OR IMPASSABLE DUE TO WASHOUT. TRAVEL IS DISCOURAGED ON U.S. HIGHWAY 6 AS AREAS OF INTENSE RAINFALL COULD REDUCE VISIBILITY TO NEAR ZERO. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. FLOOD WATERS ARE LIKELY MOVING DOWN FRENCHMAN CREEK ABOVE CHAMPION AND ENDERS DAM. THE FLOOD CREST COULD REACH 10 FEET AT CHAMPION BY 6 AM MDT. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN NORTH PLATTE. LAT...LON 4035 10204 4034 10134 4068 10135 4069 10203 $$ CDC
2 follow-up statements
000 WGUS73 KLBF 120838 FFSLBF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 331 AM CDT TUE JUN 12 2007 NEC029-121315- CHASE NE- 231 AM MDT TUE JUN 12 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM MDT FOR CHASE COUNTY... AT 226 AM MDT...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS PRODUCING HEAVY RAINFALL CONTINUE TO MOVE NORTH ACROSS PARTS OF WESTERN CHASE COUNTY. RAINFALL RATES ARE ESTIMATED AT 1 INCH PER HOUR IN THIS AREA. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED NUMEROUS COUNTY ROADS UNDER WATER IN CHASE COUNTY. CHASE COUNTY OFFICIALS STRONGLY DISCOURAGE TRAVEL ON ANY COUNTY OR SECONDARY ROADS FOR THE REMAINDER OF TONIGHT...AS ROADS ARE UNDERWATER OR IMPASSABLE DUE TO WASHOUT OR STRUCTURAL PROBLEMS. AT 140 AM MDT...POLICE REPORTED WATER OVER U.S. HIGHWAY 6 WEST OF IMPERIAL. TRAVEL IS DISCOURAGED ON U.S. HIGHWAY 6 AS THIS ROAD MAY BE FLOODED OR SUFFERED STRUCTURAL DAMAGE. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAMAR...CHAMPION AND IMPERIAL. RADAR AND POLICE ESTIMATED RAINFALL AMOUNTS OF 6 TO 8 INCHES OR GREATER ACROSS PARTS OF WESTERN CHASE COUNTY. THROUGH 530 AM MDT...ADDITIONAL RAINFALL OF 1 TO 3 INCHES IS LIKELY IN THE WARNED AREA. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. FLOOD WATERS ARE LIKELY MOVING DOWN FRENCHMAN CREEK ABOVE CHAMPION AND ENDERS DAM. THE FLOOD CREST COULD REACH BETWEEN 6 AND 12 FEET AT CHAMPION BY 6 AM MDT. THIS IS BASED ON THE FLOOD EVENTS OF JUNE 1997 AND JUNE 1940 WHICH PRODUCED CRESTS OF 5.88 FEET AND 12.40 FEET RESPECTIVELY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. LAT...LON 4035 10204 4034 10134 4068 10135 4069 10203 $$ CDC
000 WGUS73 KLBF 121027 FFSLBF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 520 AM CDT TUE JUN 12 2007 NEC029-121315- CHASE NE- 420 AM MDT TUE JUN 12 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM MDT FOR CHASE COUNTY... AT 414 AM MDT...ALL INDICATIONS ARE THE HEAVY RAIN HAS ENDED AND NO SIGNIFICANT RAINFALL IS EXPECTED FOR SEVERAL HOURS THIS MORNING. ANOTHER POWERFUL UPPER LEVEL DISTURBANCE WILL BE APPROACHING SOUTHWEST NEBRASKA LATER THIS MORNING OR THIS AFTERNOON AND MORE HEAVY RAINFALL COULD DEVELOP. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO IMPERIAL...CHAMPION AND LAMAR. ADDITIONAL RAINFALL AMOUNTS OF 1/4 INCH OR LESS IS POSSIBLE EARLY THIS MORNING IN THE WARNED AREA. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED NUMEROUS COUNTY ROADS UNDER WATER IN CHASE COUNTY LAST NIGHT. CHASE COUNTY OFFICIALS STRONGLY DISCOURAGE TRAVEL ON ANY COUNTY OR SECONDARY ROADS EARLY THIS MORNING UNTIL ENGINEERS HAVE INSPECTED THE STRUCTURAL INTEGRITY OF THE ROADWAYS. UNPAVED ROADS MAY BE WASHED OUT AND IMPASSABLE. RADAR ESTIMATES AND REPORTS FROM POLICE INDICATE AT LEAST 6 INCHES OF RAIN FELL LAST NIGHT AND IT IS POSSIBLE SOME AREAS MAY HAVE RECEIVED 8 INCHES OR MORE. FLOOD WATERS ARE LIKELY MOVING DOWN FRENCHMAN CREEK ABOVE CHAMPION AND ENDERS DAM. THE FLOOD CREST COULD REACH BETWEEN 6 AND 12 FEET AT CHAMPION THIS MORNING. THIS IS BASED ON THE FLOOD EVENTS OF JUNE 1997 AND JUNE 1940 WHICH PRODUCED CRESTS OF 5.88 FEET AND 12.40 FEET RESPECTIVELY. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. LAT...LON 4035 10204 4034 10134 4068 10135 4069 10203 $$ CDC
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 6:28 PM MDT | Severe Thunderstorm Warning | LBF | Chase | 62 min |
| Jun 11, 7:01 PM MDT | Flash Flood Warning | LBF | Chase | 119 min |
| Jun 11, 7:11 PM MDT | Flash Flood Warning | LBF | Chase, Hayes | 6 hr |
| Jun 11, 8:34 PM MDT | Severe Thunderstorm Warning | LBF | Perkins | 41 min |
| Jun 11, 9:31 PM MDT | Flash Flood Warning | LBF | Perkins | 4 hr |
| Jun 12, 12:00 AM MDT | Severe Thunderstorm Warning | LBF | Chase | 60 min |
| Jun 12, 12:17 AM MDT | Tornado Warning | LBF | Chase | 43 min |
| Jun 12, 1:23 AM MDT | Flash Flood Warning | LBF | Perkins | 4 hr |
| Jun 12, 2:39 AM MDT | Flash Flood Watch | LBF | Arthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more | 48 hr |
| Jun 12, 6:54 AM MDT | Flash Flood Warning | LBF | Chase | 4 hr |
| Jun 12, 11:19 AM MDT | Flash Flood Warning | LBF | Chase, Perkins | 6 hr |
| Jun 12, 11:41 AM MDT | Severe Thunderstorm Warning | LBF | Cherry | 34 min |
| Jun 12, 12:23 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 40 min |
| Jun 12, 1:28 PM MDT | Flash Flood Warning | LBF | Keith | 6 hr |
| Jun 12, 1:46 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 30 min |
| Jun 12, 2:43 PM MDT | Flash Flood Warning | LBF | Hayes | 6 hr |
| Jun 12, 3:22 PM MDT | Flash Flood Warning | LBF | Lincoln | 6 hr |
| Jun 12, 3:29 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 61 min |
Nearby
Flash Flood Warnings in Nebraska, 2007Every flash flood warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.