Alert archive / Nebraska / Flash Flood Warnings in 2016
Flash Flood Warning 10, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jul 1, 2016, 3:39 PM MDT for Kimball County, Nebraska; Laramie County, Wyoming. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2016, 3:39 PM MDT (21:39 UTC)
- Expired
- Jul 1, 2016, 6:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Kimball County, NE, Laramie County, WY
The radar
The Cheyenne radar (KCYS), 70 km from the middle of the area, began a volume at 21:39 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.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 9.7 hours before the alert went out and 156 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
- 23 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 934 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
520
WGUS55 KCYS 012139
FFWCYS
NEC105-WYC021-020045-
/O.NEW.KCYS.FF.W.0010.160701T2139Z-160702T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
339 PM MDT FRI JUL 1 2016
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...
EAST CENTRAL LARAMIE COUNTY IN SOUTHEASTERN WYOMING...
* UNTIL 645 PM MDT
* AT 338 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN NEAR THE LARAMIE COUNTY LINE WITH KIMBALL COUNTY.
FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PINE BLUFFS...OLIVER RESERVOIR...OLIVER CAMPGROUND...PANORAMA POINT
AND BUSHNELL.
ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 80 IN WYOMING BETWEEN MILE MARKERS 401 AND 402.
INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 1 AND 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4127 10409 4126 10379 4100 10378 4100 10408
$$
CLAYCOMB1 follow-up statement
618 WGUS75 KCYS 012311 FFSCYS FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 511 PM MDT FRI JUL 1 2016 NEC105-WYC021-012320- /O.CAN.KCYS.FF.W.0010.000000T0000Z-160702T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KIMBALL NE-LARAMIE WY- 511 PM MDT FRI JUL 1 2016 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN KIMBALL AND EAST CENTRAL LARAMIE COUNTIES IS CANCELLED... FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES. LAT...LON 4127 10409 4126 10379 4100 10378 4100 10408 $$ CLAYCOMB
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:30 PM MDT | Flash Flood Warning | CYS | Kimball | 6 hr |
| Jul 1, 2:21 PM MDT | Special Weather Statement | CYS | Dawes | 39 min |
| Jul 1, 3:06 PM MDT | Special Weather Statement | CYS | Sioux | 24 min |
| Jul 1, 3:16 PM MDT | Flash Flood Warning | CYS | Sioux | 3 hr |
| Jul 1, 3:33 PM MDT | Special Weather Statement | CYS | Kimball | 42 min |
| Jul 1, 3:43 PM MDT | Special Weather Statement | CYS | Dawes | 47 min |
| Jul 1, 4:27 PM MDT | Special Weather Statement | CYS | Kimball | 48 min |
| Jul 1, 4:41 PM MDT | Special Weather Statement | CYS | Box Butte | 49 min |
| Jul 1, 2:41 PM MDT | Special Weather Statement | CYS | Goshen | 49 min |
| Jul 1, 5:37 PM MDT | Special Weather Statement | CYS | Niobrara | 38 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.