Alert archive / Utah / Flash Flood Warnings in 2017
Flash Flood Warning 1, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jun 1, 2017, 1:40 PM MDT for Wayne County, Utah. It was in force for 2 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 1, 2017, 1:40 PM MDT (19:40 UTC)
- Expired
- Jun 1, 2017, 3:45 PM MDT
- In force
- 2 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Wayne County, UT
The radar
The Cedar City radar (KICX), 162 km from the middle of the area, began a volume at 19:42 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
Grand Junction, CO (KGJT), launched 12:00Z, 7.7 hours before the alert went out and 256 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
- 2489 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
032
WGUS55 KSLC 011940
FFWSLC
UTC055-012145-
/O.NEW.KSLC.FF.W.0001.170601T1940Z-170601T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Salt Lake City UT
140 PM MDT THU JUN 1 2017
The National Weather Service in Salt Lake City has issued a
* Flash Flood Warning for...
South central Wayne County in southern Utah...
* Until 345 PM MDT
* At 138 PM MDT, park rangers reported flash flooding in Grand Wash
at Capitol Reef National Park. The road to Grand Wash is currently
closer. Retreat to higher ground if you are currently in a flash
flood prone area of the park.
* Some locations that will experience flooding include...
Capitol Reef National Park and Fruita.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3819 11121 3826 11129 3832 11135 3839 11136
3843 11120 3829 11112
$$
MT2 follow-up statements
255
WGUS75 KSLC 012055
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
255 PM MDT THU JUN 1 2017
UTC055-012145-
/O.CON.KSLC.FF.W.0001.000000T0000Z-170601T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wayne UT-
255 PM MDT THU JUN 1 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
SOUTH CENTRAL WAYNE COUNTY...
At 253 PM MDT, park rangers reported that flash flooding continued
in Grand Wash at Capitol Reef National Park. Water has washed across
Highway 24, depositing debris east of the visitor center. Retreat to
higher ground if you are currently in a flash flood prone area of
the park.
Some locations that will experience flooding include...
Capitol Reef National Park and Fruita.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 3819 11121 3826 11129 3832 11135 3839 11136
3843 11120 3829 11112
$$
MT654
WGUS75 KSLC 012150
FFSSLC
Flash Flood Statement
National Weather Service Salt Lake City UT
350 PM MDT THU JUN 1 2017
UTC055-012159-
/O.EXP.KSLC.FF.W.0001.000000T0000Z-170601T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wayne UT-
350 PM MDT THU JUN 1 2017
...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL WAYNE COUNTY HAS
EXPIRED...
The heavy rain that produced the flooding over Grand Wash has ended.
Flooding is no longer expected to pose a threat at this time, though
additional showers and thunderstorms will likely impact the park
through this evening. Please continue to heed any remaining road
closures.
LAT...LON 3819 11121 3826 11129 3832 11135 3839 11136
3843 11120 3829 11112
$$
MTThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 4:08 PM MDT | Flash Flood Warning | SLC | Garfield, Wayne | 2 hr |
Nearby
Flash Flood Warnings in Utah, 2017Every flash flood warning in 2017
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.