Alert archive / Nebraska / Flash Flood Warnings in 2016
Flash Flood Warning 15, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Aug 18, 2016, 6:25 PM MDT for Banner County, Kimball County, Scotts Bluff County, Nebraska; Goshen County, Laramie County, Wyoming. It was in force for 3 hr. 2 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
- Aug 18, 2016, 6:25 PM MDT (00:25 UTC)
- Expired
- Aug 18, 2016, 9:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Banner County, NE, Kimball County, NE, Scotts Bluff County, NE, Goshen County, WY, Laramie County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 00:25 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 |
|---|---|---|---|
| Aug 18, 6:40 PM MDT | FLASH FLOOD | Bushnell, NE | REPORTS OF FLOODING IN BUSHNELL, DIX, AND KIMBALL DUE THE HEAVY RAIN THAT HAS AND IS FALLING |
| Aug 18, 7:25 PM MDT | HEAVY RAIN 2.5 | Bushnell, NE |
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, 0.4 hours before the alert went out and 187 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
- 3 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 2233 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
727
WGUS55 KCYS 190025
FFWCYS
NEC007-105-157-WYC015-021-190330-
/O.NEW.KCYS.FF.W.0015.160819T0025Z-160819T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
625 PM MDT THU AUG 18 2016
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
SOUTHWESTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA...
KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
SOUTHERN GOSHEN COUNTY IN SOUTHEASTERN WYOMING...
NORTHEASTERN LARAMIE COUNTY IN SOUTHEASTERN WYOMING...
* UNTIL 930 PM MDT
* AT 624 PM MDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KIMBALL...LA GRANGE...DIX...ALBIN...HAWK SPRINGS CAMPGROUND...
OLIVER CAMPGROUND...HAWK SPRINGS RECREATION AREA...
OLIVER RESERVOIR...KIMBALL AIRPORT...GUN BARREL...
MERIDEN REST AREA AND BUSHNELL.
ADDITIONAL RAINFALL AMOUNTS IN EXCESS OF 2 INCHES ARE POSSIBLE IN
THE WARNED AREA.
THIS INCLUDES INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 7 AND
29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
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.
&&
LAT...LON 4141 10337 4104 10361 4148 10455 4180 10455
4173 10400 4155 10390 4148 10346
$$
CLAYCOMB1 follow-up statement
146
WGUS75 KCYS 190244
FFSCYS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
844 PM MDT THU AUG 18 2016
NEC007-105-157-WYC015-021-190254-
/O.CAN.KCYS.FF.W.0015.000000T0000Z-160819T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BANNER NE-SCOTTS BLUFF NE-KIMBALL NE-GOSHEN WY-LARAMIE WY-
844 PM MDT THU AUG 18 2016
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN BANNER...SOUTHWESTERN
SCOTTS BLUFF...KIMBALL...SOUTHERN GOSHEN AND NORTHEASTERN LARAMIE
COUNTIES IS CANCELLED...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 4141 10337 4104 10361 4148 10455 4180 10455
4173 10400 4155 10390 4148 10346
$$
CLAYCOMBThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 6:40 PM MDT | Areal Flood Advisory | CYS | Morrill | 3 hr |
| Aug 18, 6:50 PM MDT | Special Weather Statement | CYS | Morrill | 40 min |
| Aug 18, 7:14 PM MDT | Flash Flood Warning | CYS | Banner, Cheyenne, Morrill, Scotts Bluff | 3 hr |
| Aug 18, 7:31 PM MDT | Special Weather Statement | CYS | Morrill | 29 min |
| Aug 18, 6:09 PM MDT | Flash Flood Warning | CYS | Goshen, Laramie, Platte | 3 hr |
| Aug 19, 9:27 AM MDT | Frost Advisory | CYS | Albany, Carbon | 23 hr |
Nearby
Flash Flood Warnings in Nebraska, 2016Flash Flood Warnings in Wyoming, 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.