Alert archive / Nebraska / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS North Platte, NE

May 22, 2016Cherry County, Nebraska

NWS North Platte, NE issued this flash flood warning at May 22, 2016, 6:36 PM MDT for Cherry County, Nebraska. It was in force for 6 hr. 3 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
May 22, 2016, 6:36 PM MDT (00:36 UTC)
Expired
May 23, 2016, 12:30 AM MDT
In force
6 hr
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Flood severity
None

County Cherry County, NE

The radar

The North Platte radar (KLNX), 101 km from the middle of the area, began a volume at 00:36 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
May 22, 6:37 PM MDTFLASH FLOODValentine, NEOVER A FOOT AND A HALF OF FLOWING WATER REPORTED DOWN SOME STREETS IN VALENTINE.
May 22, 8:20 PM MDTFLASH FLOODValentine, NEWIDESPREAD STREET FLOODING IS OCCURRING IN THE CITY OF VALENTINE PER EMERGENCY MANAGER. COUNTY CREWS WILL BE DISPATCHED TOMORROW...MONDAY MORNING...TO ASSES FLOODING IN RURAL CHERRY COUNTY.
May 22, 11:00 PM MDTHEAVY RAIN 3.87Valentine, NE

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, 0.6 hours before the alert went out and 193 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 00:00Z on 2016-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2431 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 00:00Z on 2016-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
2431 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1498 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
1.3
Supercell composite
18.2

Open this sounding in Storm Lab

The text

As transmitted.

695 
WGUS53 KLBF 230036
FFWLBF
NEC031-230630-
/O.NEW.KLBF.FF.W.0003.160523T0036Z-160523T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
736 PM CDT SUN MAY 22 2016

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 130 AM CDT/1230 AM MDT/
    
* AT 735 PM CDT/635 PM MDT/...DOPPLER RADAR INDICATED A THUNDERSTORM
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF
  RAIN HAS ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  VALENTINE...CROOKSTON...SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT
  AREA...SMITH FALLS STATE PARK...SPARKS AND HIGHWAY 97 CROSSING THE
  NIOBRARA RIVER.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 179 AND 216.
 HIGHWAY 97 BETWEEN MILE MARKERS 119 AND 141.
 HIGHWAY 83 BETWEEN MILE MARKERS 198 AND 222.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN.  DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND AN ALTERNATE ROUTE.  IT TAKES ONLY A FEW INCHES
OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED 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 4299 10021 4267 10018 4267 10088 4300 10090

$$

BUTTLER
2 follow-up statements
473 
WGUS73 KLBF 230321
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1021 PM CDT SUN MAY 22 2016

NEC031-230630-
/O.CON.KLBF.FF.W.0003.000000T0000Z-160523T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHERRY NE-
1021 PM CDT SUN MAY 22 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR
NORTHEASTERN CHERRY COUNTY...

AT 1020 PM CDT/920 PM MDT/...EMERGENCY MANAGEMENT REPORTED STREET
FLOODING IN VALENTINE. 3 TO 5 INCHES OF INCHES OF RAIN HAS FALLEN.
FLASH FLOODING IS ALREADY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
VALENTINE...CROOKSTON...SCHLAGEL CREEK STATE WILDLIFE MANAGEMENT AREA...
SMITH FALLS STATE PARK...SPARKS AND HIGHWAY 97 CROSSING THE NIOBRARA
RIVER.

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

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 20 BETWEEN MILE MARKERS 179 AND 216.
 HIGHWAY 97 BETWEEN MILE MARKERS 119 AND 141.
 HIGHWAY 83 BETWEEN MILE MARKERS 198 AND 222.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT.  IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS.  CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED 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 4299 10021 4267 10018 4267 10088 4300 10090

$$

BUTTLER
521 
WGUS73 KLBF 230609
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
109 AM CDT MON MAY 23 2016

NEC031-230618-
/O.CAN.KLBF.FF.W.0003.000000T0000Z-160523T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHERRY NE-
109 AM CDT MON MAY 23 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN CHERRY COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4299 10021 4267 10018 4267 10088 4300 10090

$$

BUTTLER

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 6:04 PM MDTSevere Thunderstorm WarningLBFCherry41 min
May 22, 6:19 PM MDTSpecial Weather StatementLBFThomas26 min
May 22, 6:30 PM MDTSpecial Weather StatementLBFLogan30 min
May 22, 6:37 PM MDTSevere Thunderstorm WarningLBFCherry53 min
May 22, 6:42 PM MDTSpecial Weather StatementLBFLogan33 min
May 22, 6:47 PM MDTSevere Thunderstorm WarningLBFCuster, Logan27 min
May 22, 7:02 PM MDTSevere Thunderstorm WarningLBFCherry43 min
May 22, 7:30 PM MDTSpecial Weather StatementLBFSheridan45 min
May 22, 7:36 PM MDTFlash Flood WarningLBFBrown, Keya Paha6 hr
May 22, 7:47 PM MDTSevere Thunderstorm WarningLBFCherry43 min
May 22, 7:53 PM MDTSpecial Weather StatementLBFSheridan37 min
May 22, 8:24 PM MDTSevere Thunderstorm WarningLBFCherry, Grant, Hooker51 min
May 22, 8:44 PM MDTSevere Thunderstorm WarningLBFArthur, Grant, Hooker, Keith, McPherson46 min
May 22, 9:15 PM MDTSevere Thunderstorm WarningLBFCherry, Keya Paha24 min
May 22, 9:26 PM MDTSpecial Weather StatementLBFMcPherson, Perkins64 min
May 22, 10:06 PM MDTSpecial Weather StatementLBFBlaine, Logan39 min
May 22, 11:03 PM MDTSpecial Weather StatementLBFGarfield, Loup, Rock42 min

Nearby

Flash Flood Warnings in Nebraska, 2016Every flash flood warning in 2016

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.