Alert archive / Wyoming / Flash Flood Warnings in 2016
Flash Flood Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at May 7, 2016, 11:20 AM MDT for Converse County, Wyoming. It was in force for 6 hr. 1 report 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 7, 2016, 11:20 AM MDT (17:20 UTC)
- Expired
- May 7, 2016, 5:15 PM MDT
- In force
- 6 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Flood severity
- None
County Converse County, WY
The radar
The Cheyenne radar (KCYS), 191 km from the middle of the area, began a volume at 17:23 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 |
|---|---|---|---|
| May 7, 11:20 AM MDT | FLASH FLOOD | Glenrock, WY | FLOODING WAS REPORTED AT MP9 ALONG ESTERBROOK ROAD. ESTERBROOK ROAD HAS BEEN CLOSED SOUTH OF MP9. COLD SPRINGS ROAD IS CLOSED AT VIRDAN HILL. NATURAL BRIDGE PARK IS CLOSED. SOUTH REC PARK IS CLOSED AND EVACUATIONS ARE UNDERWAY AT DEER CREEK RV PARK AND TOWN PA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 5.3 hours before the alert went out and 230 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
136 WGUS55 KCYS 071720 FFWCYS WYC009-072315- /O.NEW.KCYS.FF.W.0002.160507T1720Z-160507T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 1120 AM MDT SAT MAY 7 2016 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN CONVERSE COUNTY IN EAST CENTRAL WYOMING... * UNTIL 515 PM MDT * AT 1116 AM MDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING ACROSS THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING ALONG ESTERBROOK AND COLD SPRINGS ROAD AS WELL AS IN AN RV PARK ALONG THE BANKS OF DEER CREEK. THE NATURAL BRIDGE PARK HAS BEEN CLOSED. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... DOUGLAS...GLENROCK...ROLLING HILLS...BOXELDER...LAPRELE RESERVOIR... ROLLING HILLS ESTATES AND DEER CREEK. THIS INCLUDES RIVERS AND STREAMS ALONG INTERSTATE 25 BETWEEN DOUGLAS AND CASPER. 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. && LAT...LON 4287 10530 4244 10529 4259 10607 4305 10607 $$ HAHN
2 follow-up statements
844 WGUS75 KCYS 072056 FFSCYS FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 256 PM MDT SAT MAY 7 2016 WYC009-072315- /O.CON.KCYS.FF.W.0002.000000T0000Z-160507T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CONVERSE WY- 256 PM MDT SAT MAY 7 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM MDT FOR SOUTHWESTERN CONVERSE COUNTY... AT 251 PM MDT...EMERGENCY MANAGEMENT REPORTED FLOODING OCCURRING ALONG DEER CREEK...BOXELDER AND LA PRELE DRAINAGES. THIS WILL CONTINUE TO IMPACT TRAVEL ALONG ESTERBROOK AND COLD SPRINGS ROAD. EMERGENCY MANAGEMENT REPORTS 2 TO 3 FEET OF WATER FLOWING THROUGH DEER CREEK RV PARK. SOUTH REC PARK AND NATURAL BRIDGE PARK HAVE BEEN CLOSED. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... DOUGLAS...GLENROCK...ROLLING HILLS...BOXELDER...LAPRELE RESERVOIR... ROLLING HILLS ESTATES AND DEER CREEK. THIS INCLUDES DRAINGES IN AND AROUND INTERSTATE 25 BETWEEN CASPER AND DOUGLAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 4287 10530 4244 10529 4259 10607 4305 10607 $$ HAHN
672 WGUS75 KCYS 072313 FFSCYS FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 513 PM MDT SAT MAY 7 2016 WYC009-072317- /O.EXP.KCYS.FF.W.0002.000000T0000Z-160507T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CONVERSE WY- 513 PM MDT SAT MAY 7 2016 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN CONVERSE COUNTY WILL EXPIRE AT 515 PM MDT... FLOOD WATERS WILL CONTINUE TO RECEDE ACROSS SOUTHERN CONVERSE COUNTY AND ARE NO LONGER EXPECTED TO POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. ADDITIONAL MODERATE RAINFALL IS EXPECTED TONIGHT...WITH PERHAPS AN ONE HALF TO THREE QUARTERS OF AN INCH EXPECTED ACROSS LOWER ELEVATIONS OF CONVERSE COUNTY. SNOW LEVELS WILL CONTINUE TO FALL TO AROUND 7500 TURNING PRECIPITATION AT HIGHER ELEVATIONS TO SNOW. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES. LAT...LON 4287 10530 4244 10529 4259 10607 4305 10607 $$ HAHN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 6:17 PM MDT | Special Weather Statement | CYS | Platte | 43 min |
| May 6, 7:04 PM MDT | Areal Flood Advisory | CYS | Platte | 3 hr |
| May 6, 7:22 PM MDT | Flash Flood Warning | CYS | Platte | 113 min |
| May 6, 7:42 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 63 min |
| May 7, 12:29 AM MDT | Special Weather Statement | CYS | Goshen | 46 min |
| May 7, 1:25 AM MDT | Dense Fog Advisory | CYS | Albany, Carbon, Laramie | 14 hr |
| May 7, 1:30 PM MDT | River Flood Warning | CYS | Goshen | 24 hr |
| May 7, 2:39 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon | 20 hr |
| May 7, 3:09 PM MDT | River Flood Warning | CYS | Converse | 60 hr |
| May 7, 4:16 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 46 min |
Nearby
Flash 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.