Alert archive / Utah / Flash Flood Warnings in 2016

Flash Flood Warning 28, NWS Salt Lake City, UT

September 3, 2016Carbon County, Duchesne County, Emery County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Sep 3, 2016, 8:39 PM MDT for Carbon County, Duchesne County, Emery County, Utah. It was in force for 5 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
Sep 3, 2016, 8:39 PM MDT (02:39 UTC)
Expired
Sep 4, 2016, 1:30 AM MDT
In force
5 hr
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Flood severity
None

Counties Carbon County, UT, Duchesne County, UT, Emery County, UT

The radar

The Grand Junction radar (KGJX), 183 km from the middle of the area, began a volume at 02:40 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 00:00Z, 2.7 hours before the alert went out and 157 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 00:00Z on 2016-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 149 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2016-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
149 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
2017 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

139 
WGUS55 KSLC 040239
FFWSLC
UTC007-013-015-040730-
/O.NEW.KSLC.FF.W.0028.160904T0239Z-160904T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
839 PM MDT SAT SEP 3 2016

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

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

* UNTIL 130 AM MDT
    
* AT 834 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN OVER A WIDE AREA FROM CASTLEDALE NORTHEAST TO MYTON.
  THIS FLASH FLOOD WARNING INCLUDES MANY CANYONS....THE
  BOOKCLIFFS...HUNTINGTON CANYON...THE PRICE RIVER AND TRIBUTARIES
  THROUGHOUT THE AREA.

* HEAVY THUNDERSTORMS ARE REFORMING THROUGH THESE AREAS.  WHILE
  RADAR COVERAGE IS POOR IN THIS LOCATION...IT IS INFERRED THAT
  FLASH FLOODING IS OCCURING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PRICE...HELPER...HUNTINGTON...WELLINGTON...SUNNYSIDE...
  CASTLE DALE...ORANGEVILLE...EAST CARBON...CLEVELAND...ELMO...
  WOODSIDE AND KENILWORTH.

* IF YOU ARE TRAVELING THROUGH THESE LOCATIONS...USE PRUDENT
  JUDGEMENT AND BE AWARE OF FAST RISING WATERS.

LAT...LON 3979 10989 3972 10995 3974 10999 3967 10998
      3953 11005 3946 11002 3921 11030 3908 11086
      3925 11116 3971 11083 4020 10998 3982 10997

$$

MCINERNEY
2 follow-up statements
008 
WGUS75 KSLC 040457
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1057 PM MDT SAT SEP 3 2016

UTC007-013-015-040730-
/O.CON.KSLC.FF.W.0028.000000T0000Z-160904T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DUCHESNE UT-CARBON UT-EMERY UT-
1057 PM MDT SAT SEP 3 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM MDT FOR
SOUTHEASTERN DUCHESNE...CARBON AND NORTHERN EMERY COUNTIES...

AT 1055 PM MDT...HEAVY RAINFALL HAS OCCURRED ACROSS SOUTHEASTERN
DUCHESNE...CARBON AND NORTHERN EMERY COUNTIES. OCCASIONAL
THUNDERSTORMS WITH HEAVY RAIN CONTINUE TO CROSS THIS AREA. THIS IS
LIKELY RESULTING IN FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PRICE...HELPER...HUNTINGTON...WELLINGTON...SUNNYSIDE...CASTLE DALE...
ORANGEVILLE...EAST CARBON...CLEVELAND...ELMO...
WOODSIDE AND KENILWORTH.

LAT...LON 3979 10989 3972 10995 3974 10999 3967 10998
      3953 11005 3946 11002 3921 11030 3908 11086
      3925 11116 3971 11083 4020 10998 3982 10997

$$

CRK
173 
WGUS75 KSLC 040729
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
129 AM MDT SUN SEP 4 2016

UTC007-013-015-040737-
/O.EXP.KSLC.FF.W.0028.000000T0000Z-160904T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DUCHESNE UT-CARBON UT-EMERY UT-
129 AM MDT SUN SEP 4 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN DUCHESNE...CARBON AND
NORTHERN EMERY COUNTIES WILL EXPIRE AT 130 AM MDT...

WIDESPREAD RAINFALL HAS TAPERED OFF ACROSS THE AREA. NORMALLY DRY
WASHES AND SMALL STREAMS WILL CONTINUE TO RUN HIGH INTO THE
OVERNIGHT HOURS, HOWEVER THE THREAT FOR ADDITIONAL FLASH FLOODING
HAS ENDED, AND THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE.
PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3979 10989 3972 10995 3974 10999 3967 10998
      3953 11005 3946 11002 3921 11030 3908 11086
      3925 11116 3971 11083 4020 10998 3982 10997

$$

MPS

Nearby

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.