Alert archive / Nebraska / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Cheyenne, WY

June 12, 20167 counties in Nebraska; Laramie County, Wyoming

NWS Cheyenne, WY issued this flash flood warning at Jun 12, 2016, 7:59 PM MDT for 7 counties in Nebraska; Laramie County, Wyoming. It was in force for 9 hr. 15 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 12, 2016, 7:59 PM MDT (01:59 UTC)
Expired: Jun 13, 2016, 5:00 AM MDT
In force: 9 hr
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Flood severity: None

Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 97 km from the middle of the area, began a volume at 02:03 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, 7:59 PM MDT	HEAVY RAIN 1.5	4 Se Gering, NE	RAINFALL OF 1.5 INCHES 3.5 SOUTHEAST OF GERING.
Jun 12, 8:04 PM MDT	HEAVY RAIN 1.75	W Gering, NE	RAINFALL OF 1.75 INCHES ON 13TH STREET.
Jun 12, 8:05 PM MDT	FLASH FLOOD	Scotts Bluff National M, NE	CANYONS WEST OF SCOTTS BLUFF MONUMENT RUNNING FULL AND HIGHWAY 92 IS UNDERWATER IN SEVERAL AREAS.
Jun 12, 8:23 PM MDT	FLASH FLOOD	5 W Scottsbluff, NE	FLASH FLOODING CONTINUING FOR HIGHWAY 92 AND OREGON TRAIL WEST OF SCOTTSBLUFF.
Jun 12, 8:24 PM MDT	FLASH FLOOD	3 W Scottsbluff, NE	WATER SWEPT TRUCK OFF ROAD AT COUNTY ROAD 17 AND HIGHWAY 92, 3 MILES WEST OF SCOTTSBLUFF. STILL 3-4 FEET OF WATER FLOWING DOWN COUNTY ROAD 17 AND 8-12 INCHES OF WATER FLOWING ACROSS HIGHWAY 92.
Jun 12, 8:30 PM MDT	FLASH FLOOD	4 Sw Gering, NE	YARD AND NEARBY ROADS ALL UNDERWATER.
Jun 12, 8:30 PM MDT	HEAVY RAIN 3.4	1 Nw Scottsbluff, NE	3.4 INCHES OF RAINFALL AT INTERSECTION OF COUNTY ROAD 20 AND HIGHWAY 26.
Jun 12, 8:39 PM MDT	FLASH FLOOD	W Scottsbluff, NE	HIGHWAY 92 HAS 8-16 INCHES OF WATER FLOWING ACROSS IT AT EVERY COUNTY ROAD INTERSECTION FROM SCOTTSBLUFF WEST TO MITCHELL.
Jun 12, 8:40 PM MDT	FLASH FLOOD	5 W Scottsbluff, NE	WATER OVER RAILROAD TRACKS AT INTERSECTION WITH COUNTY ROAD 17, JUST NORTH OF WATER RESCUE LOCATION.
Jun 12, 8:40 PM MDT	FLASH FLOOD	5 W Scottsbluff, NE	WATER RESCUE COMPLETED AT COUNTY ROAD 17 AND HIGHWAY 92. RESCUED STRANDED DRIVER AFTER THEIR FULL-SIZED PICKUP WAS WASHED OFF THE ROAD. PORTIONS OF COUNTY ROAD 17 IN THAT AREA HAVE BEEN WASHED AWAY.
Jun 12, 8:47 PM MDT	HEAVY RAIN 3	Gering, NE	3 INCHES OF RAINFALL REPORTED ON S STREET IN GERING.
Jun 12, 8:50 PM MDT	HEAVY RAIN 1.38	1 E Scottsbluff, NE	MEASURED 1.38 INCHES OF RAIN AT 850 PM AND STILL RAINING.
Jun 12, 8:50 PM MDT	HEAVY RAIN 4.25	2 Sw Scottsbluff, NE	PUBLIC REPORT OF 4.25 INCHES OF RAINFALL AT INTERSECTION OF SOUTH BELTLINE AND WEST OVERLAND IN SCOTTSBLUFF.
Jun 12, 8:52 PM MDT	HEAVY RAIN 0.98	Bayard, NE	RAIN FELL IN 40 MINUTE PERIOD CAUSING FLOODING IN BAYARD.
Jun 13, 12:05 AM MDT	FLASH FLOOD	Kimball, NE	REPORTS OF ROADS BEING WASHED OUT/DAMAGED ACROSS THE COUNTY. STREETS IN KIMBALL HAD RUNNING WATER ACROSS THEM. DELAYED REPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 2.0 hours before the alert went out and 175 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 322 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 2628 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

316 
WGUS55 KCYS 130159
FFWCYS
NEC007-013-033-105-123-157-165-WYC021-130500-
/O.NEW.KCYS.FF.W.0006.160613T0159Z-160613T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
759 PM MDT SUN JUN 12 2016

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...
  BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
  WESTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHEASTERN SIOUX COUNTY IN THE PANHANDLE OF NEBRASKA...
  SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA...
  KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHWESTERN BOX BUTTE COUNTY IN THE PANHANDLE OF NEBRASKA...
  EAST CENTRAL LARAMIE COUNTY IN SOUTHEASTERN WYOMING...

* UNTIL 1100 PM MDT
    
* AT 758 PM MDT...THE PUBLIC REPORTED A LINE OF THUNDERSTORMS
  PRODUCING HEAVY RAINFALL  THUNDERSTORM PRODUCING HEAVY RAIN ACROSS
  THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN.
  FLASH FLOODING IS EXPECTED IS OCCURRING AT THIS TIME.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SCOTTSBLUFF...KIMBALL...GERING...BAYARD...TERRYTOWN...PINE BLUFFS...
  MINATARE...DIX...LAKE ALICE...REDINGTON...MOOMAWS CORNER...ANGORA...
  OLIVER RESERVOIR...CHIMNEY ROCK STATE PARK...KIMBALL AIRPORT...WILDCAT
  HILLS STATE RECREATION AREA...SCOTTSBLUFF AIRPORT...HARRISBURG...
  SCOTTS BLUFF NATIONAL MONUMENT AND LAKE MINATARE.

ADDITIONAL RAINFALL AMOUNTS OF INCH TO AN INCH AND A HALF ARE
POSSIBLE IN THE WARNED AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 80 IN WYOMING BETWEEN MILE MARKERS 397 AND 402.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 1 AND 33.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4109 10419 4216 10361 4208 10293 4100 10354
      4100 10373

$$

CLAYCOMB

3 follow-up statements

646 
WGUS55 KCYS 130449
FFWCYS
NEC007-013-033-105-123-157-165-WYC021-131100-
/O.EXT.KCYS.FF.W.0006.000000T0000Z-160613T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
1049 PM MDT SUN JUN 12 2016

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...
  BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
  WESTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHEASTERN SIOUX COUNTY IN THE PANHANDLE OF NEBRASKA...
  SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA...
  KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHWESTERN BOX BUTTE COUNTY IN THE PANHANDLE OF NEBRASKA...
  EAST CENTRAL LARAMIE COUNTY IN SOUTHEASTERN WYOMING...

* UNTIL 500 AM MDT MONDAY

* AT 1048 PM MDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
  ACROSS THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SCOTTSBLUFF...KIMBALL...GERING...BAYARD...TERRYTOWN...PINE BLUFFS...
  MINATARE...DIX...LAKE ALICE...REDINGTON...MOOMAWS CORNER...ANGORA...
  OLIVER RESERVOIR...CHIMNEY ROCK STATE PARK...KIMBALL AIRPORT...WILDCAT
  HILLS STATE RECREATION AREA...SCOTTSBLUFF AIRPORT...HARRISBURG...
  SCOTTS BLUFF NATIONAL MONUMENT AND LAKE MINATARE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 80 IN WYOMING BETWEEN MILE MARKERS 397 AND 402.
 INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 1 AND 33.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4109 10419 4216 10361 4208 10293 4100 10354
      4100 10373

$$

RUBIN

224 
WGUS75 KCYS 130530
FFSCYS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1130 PM MDT SUN JUN 12 2016

NEC007-013-033-105-123-165-WYC021-130536-
/O.CAN.KCYS.FF.W.0006.000000T0000Z-160613T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHEYENNE NE-BANNER NE-MORRILL NE-SIOUX NE-KIMBALL NE-BOX BUTTE NE-
LARAMIE WY-
1130 PM MDT SUN JUN 12 2016

...THE FLASH FLOOD WARNING FOR NORTHWESTERN CHEYENNE...BANNER...
WESTERN MORRILL...SOUTHEASTERN SIOUX...KIMBALL...SOUTHWESTERN BOX
BUTTE AND EAST CENTRAL LARAMIE COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT OUTSIDE OF SCOTTS BLUFF COUNTY. PLEASE CONTINUE TO
HEED ALL ROAD CLOSURES.

LAT...LON 4200 10370 4200 10337 4170 10339 4170 10386

$$

NEC157-131100-
/O.CON.KCYS.FF.W.0006.000000T0000Z-160613T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTTS BLUFF NE-
1130 PM MDT SUN JUN 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM MDT MONDAY
FOR EASTERN SCOTTS BLUFF COUNTY...

AT 1048 PM MDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN
SCOTTS BLUFF COUNTY. FLASH FLOODING IS OCCURRING AND WILL CONTINUE
THROUGH MIDNIGHT...ESPECIALLY ACROSS WESTERN AND SOUTHERN PORTIONS
OF THE CITY WHERE THE HEAVIEST RAINFALL FELL EARLIER THIS EVENING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SCOTTSBLUFF...GERING...TERRYTOWN...MINATARE...LAKE ALICE...SCOTTS BLUFF
NATIONAL MONUMENT...WILDCAT HILLS CAMPGROUND...WILDCAT HILLS STATE
RECREATION AREA...SCOTTSBLUFF AIRPORT...LAKE MINATARE...LAKE MINATARE
CAMPGROUND...MELBETA AND MCGREW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4200 10370 4200 10337 4170 10339 4170 10386

$$

TJT

352 
WGUS75 KCYS 131052
FFSCYS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
452 AM MDT MON JUN 13 2016

NEC157-131101-
/O.EXP.KCYS.FF.W.0006.000000T0000Z-160613T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTTS BLUFF NE-
452 AM MDT MON JUN 13 2016

...THE FLASH FLOOD WARNING FOR EASTERN SCOTTS BLUFF COUNTY WILL
EXPIRE AT 500 AM MDT...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS
AFTERNOON AND THIS EVENING...WHICH MAY RESULT IN PERIODS OF VERY
HEAVY RAINFALL. PLEASE MONITOR THE LATEST FORECASTS AND STATEMENTS
FROM THE NATIONAL WEATHER SERVICE SINCE ADDITIONAL FLASH FLOODING
IS POSSIBLE. 

LAT...LON 4200 10370 4200 10337 4170 10339 4170 10386

$$

TJT

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 7:03 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Box Butte, Kimball, Morrill, Scotts Bluff, Sioux	42 min
Jun 12, 7:38 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Box Butte, Cheyenne, Kimball, Morrill, Scotts Bluff and 1 more	37 min
Jun 12, 8:11 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Box Butte, Cheyenne, Kimball, Morrill, Scotts Bluff and 1 more	49 min
Jun 12, 9:24 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Cheyenne, Morrill	27 min
Jun 13, 10:21 AM MDT	Flash Flood Watch	CYS	Banner, Kimball, Scotts Bluff	10 hr
Jun 13, 4:29 PM MDT	Special Weather Statement	CYS	Sioux	46 min
Jun 13, 5:12 PM MDT	Special Weather Statement	CYS	Dawes	48 min
Jun 13, 5:52 PM MDT	Special Weather Statement	CYS	Sioux	53 min
Jun 12, 6:01 PM MDT	Flash Flood Warning	CYS	Laramie	3 hr
Jun 12, 6:50 PM MDT	Flash Flood Warning	CYS	Laramie	3 hr
Jun 13, 12:21 PM MDT	Special Weather Statement	CYS	Converse	39 min
Jun 13, 12:37 PM MDT	Severe Thunderstorm Warning	CYS	Converse	38 min
Jun 13, 1:19 PM MDT	Special Weather Statement	CYS	Platte	41 min
Jun 13, 1:28 PM MDT	Severe Thunderstorm Warning	CYS	Platte	47 min
Jun 13, 2:10 PM MDT	Severe Thunderstorm Warning	CYS	Platte	30 min
Jun 13, 5:50 PM MDT	Special Weather Statement	CYS	Converse	40 min

Nearby

Flash Flood Warnings in Nebraska, 2016 Flash Flood Warnings in Wyoming, 2016 Every 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.