Alert archive / Utah / Flash Flood Warnings in 2014

Flash Flood Warning 7, NWS Salt Lake City, UT

July 15, 2014Carbon County, Duchesne County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jul 15, 2014, 3:51 PM MDT for Carbon County, Duchesne 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 15, 2014, 3:51 PM MDT (21:51 UTC)
Expired
Jul 15, 2014, 6:45 PM MDT
In force
3 hr
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Flood severity
None

Counties Carbon County, UT, Duchesne County, UT

The radar

The Grand Junction radar (KGJX), 185 km from the middle of the area, began a volume at 21:54 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, 9.9 hours before the alert went out and 160 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.

Skew-T log-pSkew-T log-p diagram, Grand Junction, CO at 12:00Z on 2014-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 12:00Z on 2014-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2729 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

152 
WGUS55 KSLC 152151
FFWSLC
UTC007-013-160045-
/O.NEW.KSLC.FF.W.0007.140715T2151Z-140716T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
351 PM MDT TUE JUL 15 2014

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN DUCHESNE COUNTY IN UTAH...
  NORTHEASTERN CARBON COUNTY IN UTAH...

* UNTIL 645 PM MDT
    
* AT 347 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN OVER 9 MILE AND ARGYLE CANYONS.  

* RADAR RAINFALL ESTIMATES OF OVER 3 INCHES HAS FALLEN IN A SHORT 
  PERIOD OF TIME. THIS AREA EXPERIENCED FLASH FLOODING ON 
  MONDAY...AND ADDITIONAL FLOODING IS ANTICIPATED THROUGH THE 
  EVENING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3979 10994 3972 11014 3982 11059 3991 11063
      3991 11012 3986 10996 3980 10996 3980 10989

$$

MCINERNEY

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 6:11 PM MDTSpecial Weather StatementSLCTooele64 min
Jul 14, 6:29 PM MDTSpecial Weather StatementSLCDavis, Salt Lake61 min
Jul 14, 7:20 PM MDTSpecial Weather StatementSLCEmery25 min
Jul 14, 7:30 PM MDTSpecial Weather StatementSLCUtah30 min
Jul 15, 3:41 AM MDTFlash Flood WatchSLC18 hr
Jul 15, 2:05 PM MDTFlash Flood WarningSLCWayne3 hr
Jul 15, 2:17 PM MDTRed Flag WarningSLCCarbon, Emery32 hr
Jul 15, 4:17 PM MDTFlash Flood WarningSLCWashington3 hr
Jul 15, 4:46 PM MDTFlash Flood WarningSLCKane3 hr
Jul 15, 5:40 PM MDTFlash Flood WarningSLCGarfield4 hr

Nearby

Flash Flood Warnings in Utah, 2014Every flash flood warning in 2014

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.