Alert archive / Nebraska / Flash Flood Warnings in 2003
Flash Flood Warning 8, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Sep 10, 2003, 9:38 PM CDT for Custer County, Nebraska. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 10, 2003, 9:38 PM CDT (02:38 UTC)
- Expired
- Sep 10, 2003, 11:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Custer County, NE
The radar
The Grand Island radar (KUEX), 127 km from the middle of the area, began a volume at 02:39 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 00:00Z, 2.6 hours before the alert went out and 109 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
- 2303 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1417 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLBF 110240 FFWLBF NEC041-110445- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 938 PM CDT WED SEP 10 2003 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN CUSTER COUNTY IN CENTRAL NEBRASKA * UNTIL 1145 PM CDT * AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM 14 MILES SOUTHWEST OF MASON CITY TO 5 MILES NORTHEAST OF MASON CITY...OR FROM 23 MILES NORTH OF ELM CREEK TO 23 MILES NORTHWEST OF RAVENNA. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. 3 INCHES OF RAINFALL WAS INDICATED BY RADAR AND ANOTHER 1 TO 3 INCHES IS POSSIBLE THROUGH 1145 PM CDT. EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. 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. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN NORTH PLATTE. LAT...LON 4140 9922 4106 9967 4106 9922 4133 9922 $$ CDC
2 follow-up statements
000 WSUS73 KLBF 110320 FFSLBF NEC041-110445- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1018 PM CDT WED SEP 10 2003 ..A FLASH FLOOD WARNING CONTINUES FOR SOUTHEASTERN CUSTER COUNTY UNTIL 1145 PM CDT... * AT 1010 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE VERY HEAVY RAINFALL ALONG A LINE EXTENDING FROM 15 MILES SOUTHWEST OF MASON CITY TO 5 MILES NORTHEAST OF MASON CITY... OR ALONG A LINE EXTENDING FROM 24 MILES NORTH OF ELM CREEK TO 23 MILES NORTHWEST OF RAVENNA. THIS AREA OF VERY HEAVY RAIN WAS NEARLY STATIONARY. AT 1015 PM CDT...4 AND 1/2 INCHES OF RAINFALL WAS MEASURED 14 MILES SOUTHWEST OF ANSLEY. THE HEAVY RAIN WILL GRADUALLY SUBSIDE THROUGH 1115 PM CDT. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE THROUGH FLOWING WATER. NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. AS LITTLE AS 6 INCHES OF WATER MAY CAUSE YOU TO LOSE CONTROL OF YOUR VEHICLE. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND PICKUPS. TRAVEL ON UNPAVED ROADS IS NOT ADVISED. SOME SAND ROADS MAY BE WASHED OUT. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER INFORMATION. $$ CDC
000 WSUS73 KLBF 110408 FFSLBF NEC041-111000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1105 PM CDT WED SEP 10 2003 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN CUSTER COUNTY HAS BEEN CANCELLED... NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING IS ENDING. THUS...THE FLASH FLOOD WARNING HAS BEEN CANCELLED. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL GRADUALLY END OVERNIGHT. ADDITIONAL VERY HEAVY RAINFALL IS UNLIKELY. TRAVEL ON UNPAVED ROADS ACROSS SOUTHEAST CUSTER COUNTY MAY BE HAZARDOUS OVERNIGHT. SOME ROADS MAY BE WASHED OUT OR IMPASSABLE BECAUSE OF STANDING WATER OR MUD. DO NOT DRIVE THROUGH FLOWING WATER. NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. AS LITTLE AS 6 INCHES OF WATER MAY CAUSE YOU TO LOSE CONTROL OF YOUR VEHICLE. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND PICKUPS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER INFORMATION. $$ CDC
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 7:31 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 44 min |
| Sep 10, 7:49 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 56 min |
Nearby
Flash Flood Warnings in Nebraska, 2003Every flash flood warning in 2003
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.