Alert archive / Utah / Flash Flood Warnings in 2012
Flash Flood Warning 3, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 8, 2012, 1:00 PM MDT for Carbon County, Emery 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
- Jul 8, 2012, 1:00 PM MDT (19:00 UTC)
- Expired
- Jul 8, 2012, 4:14 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carbon County, UT, Emery County, UT
The radar
The Salt Lake City radar (KMTX), 219 km from the middle of the area, began a volume at 19:00 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 12:00Z, 7.0 hours before the alert went out and 150 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
- 65 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 2429 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
949
WGUS55 KSLC 081900
FFWSLC
UTC007-015-082100-
/O.NEW.KSLC.FF.W.0003.120708T1900Z-120708T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
100 PM MDT SUN JUL 8 2012
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CARBON COUNTY IN UTAH
NORTHWESTERN EMERY COUNTY IN UTAH
* UNTIL 300 PM MDT
* AT 1251 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE SEELEY
FIRE BURN SCAR...SCOFIELD RESERVOIR...COAL CITY...CLEAR CREEK AND
HUNTINGTON CANYON.
HEAVY RAINS HAVE ONCE AGAIN DEVELOPED OVER THE BURN SCAR FROM THE
SEELEY FIRE. RAINFALL ESTIMATES OF .3 TO .5 INCHES HAVE ALREADY
FALLEN AND THIS IS SUFFICIENT TO GENERATE FLASH FLOODING AND DEBRIS
FLOWS FROM THE BURN AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF A DEBRIS FLOW HAS OCCURRED IT IS IMPORTANT REALIZE THAT THE RUNOUT
AREA REMAINS VERY DANGEROUS. ADDITIONAL DEBRIS FLOWS MAY OCCUR WITHIN
MINUTES OF THE ORIGINAL FLOW. PLEASE REMAIN VIGILANT AND BE PREPARED
TO TAKE SWIFT ACTION.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3971 11125 3977 11112 3972 11101 3956 11095
3944 11096 3935 11104 3938 11125
$$
PW2 follow-up statements
405
WGUS55 KSLC 082053
FFWSLC
UTC007-015-082300-
/O.EXT.KSLC.FF.W.0003.000000T0000Z-120708T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
253 PM MDT SUN JUL 8 2012
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CARBON COUNTY IN UTAH
NORTHWESTERN EMERY COUNTY IN UTAH
* UNTIL 500 PM MDT
* AT 246 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN FROM THUNDERSTORMS MOVING INTO THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE SEELEY
FIRE BURN SCAR...MUD CREEK...COAL CITY...HUNTINGTON CANYON AND CLEAR
CREEK.
NEW STORMS WITH HEAVY RAIN ARE MOVING INTO THE SEELEY FIRE BURN SCAR
FROM THE NORTH. THESE STORMS ARE EXPECTED TO GENERATE SUFFICIENT
RAINFALL FOR FLASH FLOODING AND DEBRIS FLOWS FROM THE BURNED HILL
SIDES IN THIS AREA. THE MUD CREEK CANYON FROM NEAR THE FIRE NORTH
INTO SCOFIELD IS PARTICULARLY THREATENED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF A DEBRIS FLOW HAS OCCURRED IT IS IMPORTANT REALIZE THAT THE RUNOUT
AREA REMAINS VERY DANGEROUS. ADDITIONAL DEBRIS FLOWS MAY OCCUR WITHIN
MINUTES OF THE ORIGINAL FLOW. PLEASE REMAIN VIGILANT AND BE PREPARED
TO TAKE SWIFT ACTION.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3971 11125 3977 11112 3972 11101 3956 11095
3944 11096 3935 11104 3938 11125
$$
PW208
WGUS75 KSLC 082214
FFSSLC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
414 PM MDT SUN JUL 8 2012
UTC007-015-082219-
/O.CAN.KSLC.FF.W.0003.000000T0000Z-120708T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARBON UT-EMERY UT-
414 PM MDT SUN JUL 8 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN EMERY
AND SOUTHWESTERN CARBON COUNTIES...
THE HEAVY RAINFALL FROM EARLIER STORMS REMAINED JUST OUTSIDE THE
PERIMETER OF THE SEELEY FIRE BURN AREA AND NO FLASH FLOODING HAS
BEEN REPORTED. THEREFORE...THE FLASH FLOOD WARNING HAS BEEN
CANCELLED. MONITOR NOAA WEATHER RADIO OR LOCAL TELEVISION OR RADIO
FOR THE LATEST WEATHER INFORMATION.
LAT...LON 3971 11125 3977 11112 3972 11101 3956 11095
3944 11096 3935 11104 3938 11125
$$
PWNearby
Flash Flood Warnings in Utah, 2012Every flash flood warning in 2012
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.