Alert archive / Nebraska / Flash Flood Warnings in 2007

Flash Flood Warning 36, NWS North Platte, NE

June 12, 2007Lincoln County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 12, 2007, 4:22 PM CDT for Lincoln County, Nebraska. It was in force for 6 hr. 3 reports 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, 4:22 PM CDT (21:22 UTC)
Expired
Jun 12, 2007, 10:15 PM CDT
In force
6 hr
Issued by
NWS North Platte, NE
Area
Whole counties

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 102 km from the middle of the area, began a volume at 21:22 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

TimeReportWhereRemark
Jun 12, 5:00 PM CDTFLASH FLOODNorth Platte, NEWATER RUNNING ACROSS ROAD ANKLE DEEP AT 3RD AND JEFFERS.
Jun 12, 5:15 PM CDTFLASH FLOODNorth Platte, NEFLOODING ON A ST. WEST OF BUFFALO BILL
Jun 12, 5:30 PM CDTHEAVY RAIN 115 N North Platte, NE1 INCH IN 30 MINUTES

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 12:00Z, 9.4 hours before the alert went out and 15 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, N. Platte/Lee Bi, NE at 12:00Z on 2007-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 337 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2007-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
337 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLBF 122124
FFWLBF
NEC111-130315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
422 PM CDT TUE JUN 12 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LINCOLN COUNTY IN SOUTHWEST NEBRASKA...
  THIS INCLUDES THE CITY OF NORTH PLATTE...

* UNTIL 1015 PM CDT

* AT 414 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BRADY...
  SUTHERLAND RESERVOIR STATE RECREATION AREA...SUTHERLAND...
  MAXWELL...HERSHEY AND LAKE MALONEY STATE RECREATION AREA

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

WATER MAY WASH OUT OR FLOW OVER MANY COUNTY ROADS IN LINCOLN COUNTY. 
TRAVEL IS STRONGLY DISCOURAGED ON ANY COUNTY OR SECONDARY 
ROADS...ESPECIALLY ACROSS THE SOUTHEASTERN HALF OF THE COUNTY. 
UNPAVED ROADS MAY BECOME WASHED OUT AND IMPASSABLE. 

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.

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. MOVE 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 4070 10123 4071 10023 4138 10025 4139 10125

$$

KAR
2 follow-up statements
000 
WGUS73 KLBF 130013
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
709 PM CDT TUE JUN 12 2007

NEC111-130315-
LINCOLN NE-
709 PM CDT TUE JUN 12 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
LINCOLN COUNTY...

AT 707 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 1 
TO 3 INCHES OF RAINFALL ALONG AND NORTH OF INTERSTATE 80 FROM NORTH 
PLATTE TO BRADY. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NORTH 
PLATTE...BRADY...AND MAXWELL.

ADDITIONAL RAINFALL AMOUNTS OF A HALF AN INCH TO 1 INCH IS POSSIBLE 
THROUGH WEDNESDAY MORNING.

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. MOVE TO HIGHER GROUND.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

LAT...LON 4070 10123 4071 10023 4138 10025 4139 10125

$$

BUTTLER
000 
WGUS73 KLBF 130320
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1013 PM CDT TUE JUN 12 2007

NEC111-130323-
LINCOLN NE-
1013 PM CDT TUE JUN 12 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM CDT FOR LINCOLN 
COUNTY...

THE FLASH FLOOD WARNING FOR LINCOLN COUNTY WILL EXPIRE AT 1015 PM 
CDT. THE IMMEDIATE THREAT FOR FLASH FLOODING HAS ENDED ACROSS 
LINCOLN COUNTY. A FLASH FLOOD WATCH REMAINS IN EFFECT ACROSS ALL OF 
WESTERN AND NORTH CENTRAL NEBRASKA.

THOUGH THE IMMEDIATE THREAT FOR FLASH FLOODING HAS ENDED...PERSONS 
ACROSS LINCOLN COUNTY SHOULD CONTINUE TO MONITOR THE LATEST 
FORECASTS AND FLOOD STATEMENTS...AS THE POTENTIAL EXISTS FOR FURTHER 
FLASH FLOODING ACROSS SOUTHWESTERN NEBRASKA THROUGH WEDNESDAY. 

LAT...LON 4070 10123 4071 10023 4138 10025 4139 10125

$$

BUTTLER

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:28 PM CDTSevere Thunderstorm WarningLBFChase62 min
Jun 11, 8:01 PM CDTFlash Flood WarningLBFChase119 min
Jun 11, 8:11 PM CDTFlash Flood WarningLBFChase, Hayes6 hr
Jun 11, 9:34 PM CDTSevere Thunderstorm WarningLBFPerkins41 min
Jun 11, 10:31 PM CDTFlash Flood WarningLBFPerkins4 hr
Jun 12, 1:00 AM CDTSevere Thunderstorm WarningLBFChase60 min
Jun 12, 1:17 AM CDTTornado WarningLBFChase43 min
Jun 12, 2:10 AM CDTFlash Flood WarningLBFChase6 hr
Jun 12, 2:23 AM CDTFlash Flood WarningLBFPerkins4 hr
Jun 12, 3:39 AM CDTFlash Flood WatchLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more48 hr
Jun 12, 7:54 AM CDTFlash Flood WarningLBFChase4 hr
Jun 12, 12:19 PM CDTFlash Flood WarningLBFChase, Perkins6 hr
Jun 12, 12:41 PM CDTSevere Thunderstorm WarningLBFCherry34 min
Jun 12, 1:23 PM CDTSevere Thunderstorm WarningLBFKeith40 min
Jun 12, 2:28 PM CDTFlash Flood WarningLBFKeith6 hr
Jun 12, 2:46 PM CDTSevere Thunderstorm WarningLBFLincoln30 min
Jun 12, 3:43 PM CDTFlash Flood WarningLBFHayes6 hr
Jun 12, 4:29 PM CDTSevere Thunderstorm WarningLBFLincoln61 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.