Alert archive / Utah / Flash Flood Warnings in 2015
Flash Flood Warning 9, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jun 3, 2015, 7:30 PM MDT for Tooele County, Utah. 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 3, 2015, 7:30 PM MDT (01:30 UTC)
- Expired
- Jun 3, 2015, 10:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
County Tooele County, UT
The radar
The Salt Lake City radar (KMTX), 106 km from the middle of the area, began a volume at 01:32 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
Salt Lake City I, UT (KSLC), launched 00:00Z, 1.5 hours before the alert went out and 80 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
- 36 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 3107 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
240
WGUS55 KSLC 040130
FFWSLC
UTC045-040430-
/O.NEW.KSLC.FF.W.0009.150604T0130Z-150604T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
730 PM MDT WED JUN 3 2015
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL TOOELE COUNTY IN UTAH...
* UNTIL 1030 PM MDT
* AT 726 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER THE SOUTHERN PORTIONS OF THE PATCH SPRINGS BURN
SCAR. RADAR ESTIMATES INDICATE THAT UP TO ONE INCH OF RAIN HAS
ALREADY FALLEN. EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT
IN DEBRIS FLOW MOVING OVER THE JOHNSON PASS AREA AND ALONG HIGHWAY
199 TOWARDS THE TOWN OF TERRA. THE DEBRIS FLOW CAN CONSIST OF
ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4036 11258 4033 11258 4026 11268 4028 11269
4032 11268 4036 11265
$$
LC2 follow-up statements
352
WGUS75 KSLC 040253
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
853 PM MDT WED JUN 3 2015
UTC045-040430-
/O.CON.KSLC.FF.W.0009.000000T0000Z-150604T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TOOELE UT-
853 PM MDT WED JUN 3 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM MDT FOR
EAST CENTRAL TOOELE COUNTY...
AT 851 PM MDT...DOPPLER RADAR INDICATED UP TO TWO INCHES OF RAIN
HAVE ALREADY FALLEN OVER THE PATCH SPRINGS BURN SCAR.
EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW
MOVING OVER THE JOHNSON PASS AREA AND ALONG HIGHWAY 199 TOWARDS THE
TOWN OF TERRA. THE DEBRIS FLOW CAN CONSIST OF
ROCK...MUD...VEGETATION AND OTHER LOOSE MATERIALS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4036 11258 4033 11258 4026 11268 4028 11269
4032 11268 4036 11265
$$
LC847
WGUS75 KSLC 040425
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1025 PM MDT WED JUN 3 2015
UTC045-040430-
/O.EXP.KSLC.FF.W.0009.000000T0000Z-150604T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TOOELE UT-
1025 PM MDT WED JUN 3 2015
...THE FLASH FLOOD WARNING FOR EAST CENTRAL TOOELE COUNTY WILL EXPIRE
AT 1030 PM MDT...
RUNOFF FROM EARLIER PRECIPITATION OVER THE PATCH SPRINGS BURN SCAR
HAS DIMINISHED. REPORTS INDICATE THAT A DEBRIS FLOW OCCURRED EARLIER
THAT IMPACTED A PORTION OF HIGHWAY 199 NEAR JOHNSON PASS.
HOWEVER...THE THREAT OF ADDITIONAL DEBRIS FLOWS HAS DIMINISHED.
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.
MONITOR NOAA WEATHER RADIO OR LOCAL TELEVISION OR RADIO FOR THE
LATEST WEATHER INFORMATION.
LAT...LON 4036 11258 4033 11258 4026 11268 4028 11269
4032 11268 4036 11265
$$
LCThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 6:39 PM MDT | Special Weather Statement | SLC | Davis, Salt Lake | 51 min |
| Jun 3, 7:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 34 min |
| Jun 3, 7:16 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache | 29 min |
| Jun 3, 7:41 PM MDT | Severe Thunderstorm Warning | SLC | Cache | 34 min |
| Jun 3, 7:43 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 32 min |
| Jun 3, 8:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 34 min |
| Jun 3, 8:27 PM MDT | Special Weather Statement | SLC | Salt Lake | 48 min |
| Jun 3, 8:33 PM MDT | Special Weather Statement | SLC | Cache | 42 min |
| Jun 3, 8:38 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 36 min |
| Jun 3, 8:47 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache | 43 min |
| Jun 3, 9:12 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 33 min |
Nearby
Flash Flood Warnings in Utah, 2015Every flash flood warning in 2015
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.