Alert archive / Utah / Flash Flood Warnings in 2016
Flash Flood Warning 4, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 20, 2016, 5:21 PM MDT for Garfield County, Utah. It was in force for 114 min. 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 20, 2016, 5:21 PM MDT (23:21 UTC)
- Expired
- Jul 20, 2016, 7:15 PM MDT
- In force
- 114 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Garfield County, UT
The radar
The Cedar City radar (KICX), 55 km from the middle of the area, began a volume at 23:24 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.4 hours before the alert went out and 283 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
- 121 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
094
WGUS55 KSLC 202321
FFWSLC
UTC017-210115-
/O.NEW.KSLC.FF.W.0004.160720T2321Z-160721T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
521 PM MDT WED JUL 20 2016
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL GARFIELD COUNTY IN UTAH...
* UNTIL 715 PM MDT
* AT 519 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER RED CANYON. UP TO TWO INCHES OF RAIN HAS ALREADY
FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
RED CANYON WASH
SR 12 THROUGH RED CANYON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3777 11217 3766 11223 3772 11238 3777 11238
3780 11227
$$
CRK2 follow-up statements
834
WGUS75 KSLC 210005
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
605 PM MDT WED JUL 20 2016
UTC017-210115-
/O.CON.KSLC.FF.W.0004.000000T0000Z-160721T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-
605 PM MDT WED JUL 20 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM MDT FOR
WEST CENTRAL GARFIELD COUNTY...
AT 604 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY
RAIN ACROSS THE WARNED AREA.
FLOOD WATERS ARE MOVING DOWN THE RED CANYON WASH DRAINAGE THROUGH
ITS TERMINUS AT THE SEVIER RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3777 11217 3766 11223 3772 11238 3777 11238
3780 11227
$$
CRK713
WGUS75 KSLC 210115
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
715 PM MDT WED JUL 20 2016
UTC017-210123-
/O.EXP.KSLC.FF.W.0004.000000T0000Z-160721T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARFIELD UT-
715 PM MDT WED JUL 20 2016
...THE FLASH FLOOD WARNING FOR WEST CENTRAL GARFIELD COUNTY WILL
EXPIRE AT 715 PM MDT...
THE HEAVY RAIN HAS ENDED OVER THE RED CANYON AREA AND FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. HOWEVER, RED CANYON WASH MAY
CONTINUE TO SEE ELEVATED FLOWS THROUGH THIS EVENING. PLEASE CONTINUE
TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3777 11217 3766 11223 3772 11238 3777 11238
3780 11227
$$
LCNearby
Flash Flood Warnings in Utah, 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.