Alert archive / Wyoming / Flash Flood Warnings in 2016
Flash Flood Warning 4, NWS Riverton, WY
NWS Riverton, WY issued this flash flood warning at Jun 17, 2016, 5:26 PM MDT for Natrona 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
- Jun 17, 2016, 5:26 PM MDT (23:26 UTC)
- Expired
- Jun 17, 2016, 8:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Flood severity
- None
County Natrona County, WY
The radar
The Riverton/Lander radar (KRIW), 188 km from the middle of the area, began a volume at 23:28 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
Riverton, WY (KRIW), launched 12:00Z, 11.4 hours before the alert went out and 182 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
- 1493 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
451
WGUS55 KRIW 172326
FFWRIW
WYC025-180230-
/O.NEW.KRIW.FF.W.0004.160617T2326Z-160618T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
526 PM MDT FRI JUN 17 2016
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN NATRONA COUNTY IN WYOMING...
* UNTIL 830 PM MDT
* AT 524 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS EXTREME SOUTHEAST NATRONA COUNTY. ONE TO TWO
INCHES OF RAIN HAS ALREADY FALLEN...AND ANOTHER 1 INCH COULD FALL.
FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN
NATRONA COUNTY...SOUTH OF CASPER MOUNTAIN...AND ALONG AND EAST OF
HIGHWAY 487.
THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...BOB CREEK...BATES
CREEK...KERFOOT CREEK...KING CREEK...BATES CREEK RESERVOIR DRAW...
SPRING CREEK...ANDYS CREEK...SAND DRAW...POLE CREEK...SPRUCE CREEK...
SOUTH FORK BATES CREEK...LAWN CREEK...CHALK CREEK...STINKING CREEK...
OTTER CREEK...WEST FORK DEER CREEK...CORRAL CREEK...PITCHPINE
CREEK...SKEEN CREEK...GARDEN CREEK...BIG RED CREEK AND MUDDY CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN.
ARROYOS...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.
&&
LAT...LON 4243 10637 4250 10643 4265 10645 4268 10623
4266 10608 4243 10607
$$
212 follow-up statements
998
WGUS75 KRIW 180101
FFSRIW
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
701 PM MDT FRI JUN 17 2016
WYC025-180230-
/O.CON.KRIW.FF.W.0004.000000T0000Z-160618T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NATRONA-
701 PM MDT FRI JUN 17 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MDT FOR
SOUTHEASTERN NATRONA COUNTY...
AT 655 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS HAVE MOVED OUT
OF EXTREME SOUTHEAST NATRONA COUNTY...WHERE A FLASH FLOOD WARNING
REMAINS IN EFFECT. ALTHOUGH RAINFALL HAS ENDED...RAINFALL BETWEEN
ONE AND TWO INCHES IN A SHORT AMOUNT OF TIME WILL CAUSE SIGNIFICANT
RISES WITH SOME FLASH FLOODING OVER EXTREME SOUTHEAST NATRONA
COUNTY. THE AREAS OF MOST CONCERN ARE ALONG THE BATES CREEK AND ITS
TRIBUTARIES...AS WELL AS THE SENSEBAUGH CANYON AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN.
ARROYOS...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.
&&
LAT...LON 4243 10637 4250 10643 4265 10645 4268 10623
4266 10608 4243 10607
$$
21751
WGUS75 KRIW 180226
FFSRIW
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
826 PM MDT FRI JUN 17 2016
WYC025-180235-
/O.EXP.KRIW.FF.W.0004.000000T0000Z-160618T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NATRONA-
826 PM MDT FRI JUN 17 2016
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN NATRONA COUNTY WILL
EXPIRE AT 830 PM MDT...
ANY FLOOD WATERS SHOULD BE RECEDING...AND ARE NO LONGER EXPECTED TO
POSE A THREAT TO LIFE OR PROPERTY. PLEASE DO NOT CROSS ANY FLOODED
AREAS.
LAT...LON 4243 10637 4250 10643 4265 10645 4268 10623
4266 10608 4243 10607
$$
21The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 4:46 PM MDT | Special Weather Statement | RIW | 44 min | |
| Jun 17, 5:05 PM MDT | Special Weather Statement | RIW | Park | 40 min |
| Jun 17, 5:26 PM MDT | Special Weather Statement | RIW | 49 min | |
| Jun 17, 5:46 PM MDT | Special Weather Statement | RIW | 44 min | |
| Jun 17, 5:47 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 27 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.