Alert archive / Nebraska / Flash Flood Warnings in 2015

Flash Flood Warning 2, NWS North Platte, NE

June 10, 2015Lincoln County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 10, 2015, 3:32 PM CDT for Lincoln County, Nebraska. It was in force for 6 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 10, 2015, 3:32 PM CDT (20:32 UTC)
Expired
Jun 10, 2015, 9:30 PM CDT
In force
6 hr
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Flood severity
None

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 94 km from the middle of the area, began a volume at 20:34 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 10, 4:06 PM CDTFLASH FLOODNorth Platte, NESTREET FLOODING REPORTED IN NORTH PLATTE ON LEOTA STREET BETWEEN JEFFERS STREET AND WILLOW STREET. STREET FLOODING ALSO REPORTED ON WILLOW STREET BETWEEN LEOTA STREET AND PHILLIP STREET. FLOODING AT THE INTERSECTION OF MCDONALD AND PHILLIP STREETS.
Jun 10, 4:11 PM CDTHEAVY RAIN 02 W North Platte, NERAINFALL TOTALS IN THE PAST 45 MINUTES WERE 1.32 INCHES AT THE NORTH PLATTE NWS OFFICE AND 0.69 INCHES AT THE ASOS.
Jun 10, 4:11 PM CDTHEAVY RAIN 02 W North Platte, NERAINFALL TOTALS IN THE PAST 45 MINUTES WERE 1.35 INCHES AT THE NORTH PLATTE NWS OFFICE AND 0.69 INCHES AT THE ASOS.
Jun 10, 4:35 PM CDTHEAVY RAIN 27 S Brady, NETHUNDERSTORMS PRODUCED 2 INCHES OF RAIN IN 45 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, 8.5 hours before the alert went out and 9 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 2015-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 338 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 2015-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.193958Sfc1 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
338 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
2523 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

987 
WGUS53 KLBF 102032
FFWLBF
NEC111-110230-
/O.NEW.KLBF.FF.W.0002.150610T2032Z-150611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
332 PM CDT WED JUN 10 2015

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 930 PM CDT

* AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RADAR HAS ESTIMATED 1 TO 2 INCHES OF RAIN OVER THE    
  PAST 30 TO 60 MINUTES...WITH AN ADDITONAL 1 TO 2 INCHES OF         
  RAIN POSSIBLE OVER CENTRAL AND EASTERN LINCOLN COUNTY. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...NORTH
  PLATTE...BRADY...JEFFREY CANYON STATE WILDLIFE MANAGEMENT AREA...
  LAKE MALONEY STATE RECREATION AREA...MAXWELL AND WELLFLEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

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.

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 4137 10026 4073 10024 4073 10087 4137 10085

$$

BUTTLER
3 follow-up statements
504 
WGUS73 KLBF 102313
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
613 PM CDT WED JUN 10 2015

NEC111-110230-
/O.CON.KLBF.FF.W.0002.000000T0000Z-150611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN NE-
613 PM CDT WED JUN 10 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN LINCOLN COUNTY
UNTIL 930 PM CDT...

AT 609 PM CDT...SOME STREETS IN NORTH PLATTE REMAIN COVERED WITH 
WATER AND ARE CLOSED OFF TO TRAFFIC. IN ADDITION...WATER CONTINUES 
TO FLOW OVER COUNTY ROADWAYS SOUTH OF JEFFREY LAKE IN SOUTHEASTERN 
LINCOLN COUNTY. RADAR ESTIMATES 1 TO 3 INCHES OF RAIN HAD FALLEN IN 
THESE AREAS IN A 30 TO 60 MINUTE TIME SPAN. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
CONTINUE THROUGH MID EVENING. SOME LOCATIONS THAT WILL EXPERIENCE FLASH 
FLOODING INCLUDE...NORTH PLATTE...BRADY...JEFFREY CANYON STATE 
WILDLIFE MANAGEMENT AREA...LAKE MALONEY STATE RECREATION 
AREA...MAXWELL AND WELLFLEET.

ANOTHER ROUND OF THUNDERSTORMS IS EXPECTED TO MOVE INTO EASTERN 
PORTIONS OF LINCOLN COUNTY BETWEEN 7 AND 10 PM CDT THIS EVENING AND 
MAY PRODUCE ADDITIONAL HEAVY RAIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

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.

A FLASH FLOOD WARNING MEANS THAT FLASH 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 4137 10026 4073 10024 4073 10087 4137 10085

$$

BUTTLER
479 
WGUS73 KLBF 110126
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
826 PM CDT WED JUN 10 2015

NEC111-110230-
/O.CON.KLBF.FF.W.0002.000000T0000Z-150611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN NE-
826 PM CDT WED JUN 10 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN LINCOLN COUNTY
UNTIL 930 PM CDT...

AT 825 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO EASTERN LINCOLN 
COUNTY. AN ADDITIONAL INCH OF RAINFALL IS POSSIBLE WHICH MAY LEAD TO 
ADDITIONAL FLASH FLOODING. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
NORTH PLATTE...BRADY...JEFFREY CANYON STATE WILDLIFE MANAGEMENT
AREA...LAKE MALONEY STATE RECREATION AREA...MAXWELL AND WELLFLEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE WARNED 
AREA.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

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.

A FLASH FLOOD WARNING MEANS THAT FLASH 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 4137 10026 4073 10024 4073 10087 4137 10085

$$

BUTTLER
837 
WGUS73 KLBF 110226
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
926 PM CDT WED JUN 10 2015

NEC111-110240-
/O.EXP.KLBF.FF.W.0002.000000T0000Z-150611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN NE-
926 PM CDT WED JUN 10 2015

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN LINCOLN
COUNTY WILL BE ALLOWED TO EXPIRE AT 930 PM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO 
RECEDE...ENDING THE FLOOD THREAT. HOWEVER...MINOR STREET FLOODING IS 
POSSIBLE IN NORTH PLATTE AND THE THREAT WILL CONTINUE INTO THE EARLY 
MORNING HOURS. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO 
YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4137 10026 4073 10024 4073 10087 4137 10085

$$

BUTTLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 4:34 PM CDTSevere Thunderstorm WarningLBFBlaine, Brown, Loup, Rock41 min
Jun 10, 5:00 PM CDTSevere Thunderstorm WarningLBFBlaine, Custer, Loup45 min
Jun 10, 5:41 PM CDTSevere Thunderstorm WarningLBFCuster, Garfield, Loup49 min
Jun 10, 6:19 PM CDTSevere Thunderstorm WarningLBFGarfield, Wheeler41 min

Nearby

Flash Flood Warnings in Nebraska, 2015Every flash flood warning in 2015

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.