Alert archive / Utah / Flash Flood Warnings in 2014

Flash Flood Warning 13, NWS Salt Lake City, UT

July 29, 2014Garfield County, Wayne County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jul 29, 2014, 12:35 PM MDT for Garfield County, Wayne County, Utah. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 29, 2014, 12:35 PM MDT (18:35 UTC)
Expired
Jul 29, 2014, 3:30 PM MDT
In force
3 hr
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Flood severity
None

Counties Garfield County, UT, Wayne County, UT

The radar

The Cedar City radar (KICX), 165 km from the middle of the area, began a volume at 18:38 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.

What was reported inside it

TimeReportWhereRemark
Jul 29, 1:10 PM MDTFLASH FLOOD13 Sse Capitol Reef Np, UTNATIONAL PARK RANGERS REPORTED FLASH FLOODING ON PLEASANT CREEK AND ALONG THE SOUTH DRAW ROAD IN CAPITOL REEF NATIONAL PARK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 6.6 hours before the alert went out and 253 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 2014-07-29Temperature 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 2014-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939Sfc1 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
992 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
22 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.

845 
WGUS55 KSLC 291835
FFWSLC
UTC017-055-292130-
/O.NEW.KSLC.FF.W.0013.140729T1835Z-140729T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1235 PM MDT TUE JUL 29 2014

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL WAYNE COUNTY IN UTAH...
  NORTHEASTERN GARFIELD COUNTY IN UTAH...
  SPECIFICALLY CENTRAL PORTIONS OF CAPITOL REEF NATIONAL PARK...

* UNTIL 330 PM MDT
    
* AT 1231 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  HEAVY RAIN OVER CAPITOL REEF NATIONAL PARK...SPECIFICALLY THE 
  SHEETS GULCH AND PLEASANT CREEK AREAS...AND WHERE SHEETS GULCH 
  INTERSECTS THE NOTAM ROAD EAST OF THE PARK. RADAR ESTIMATES 
  INDICATE THAT UP TO ONE INCH OF RAIN HAS ALREADY FALLEN IN THE 
  UPPER HEADWATERS OF THESE AREAS AND THE STORM IS MOVING DOWN 
  DRAINAGE.

* FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTH CENTRAL
  WAYNE AND NORTHEASTERN GARFIELD COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. DRY
WASHES...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.

&&

LAT...LON 3820 11104 3808 11104 3806 11122 3816 11126

$$

GM
3 follow-up statements
701 
WGUS75 KSLC 291924
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
124 PM MDT TUE JUL 29 2014

UTC017-055-292130-
/O.CON.KSLC.FF.W.0013.000000T0000Z-140729T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE UT-GARFIELD UT-
124 PM MDT TUE JUL 29 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM MDT FOR 
SOUTH CENTRAL WAYNE AND NORTHEASTERN 
GARFIELD COUNTIES...SPECIFICALLY CENTRAL PORTIONS OF CAPITOL REEF 
NATIONAL PARK...

AT 120 PM MDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
PLEASANT CREEK AND ALONG SOUTH DRAW ROAD IN CAPITOL REEF NATIONAL 
PARK. RADAR ESTIMATES INDICATE THAT UP TO TWO INCHES OF RAIN HAVE 
ALREADY FALLEN...BUT THIS RAIN HAS SINCE DISSIPATED. FLASH FLOODING 
IS ALREADY OCCURRING.

FLOOD WATERS ARE MOVING DOWN PLEASANT CREEK AND POTENTIAL SHEETS 
DRAW IN CAPITOL REEF NATIONAL PARK. MOVE TO HIGHER GROUND NOW IF YOU 
ARE IN THESE AREAS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. DRY
WASHES...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.

&&

LAT...LON 3820 11104 3808 11104 3806 11122 3816 11126

$$

GM
151 
WGUS75 KSLC 292002
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
202 PM MDT TUE JUL 29 2014

UTC017-055-292130-
/O.CON.KSLC.FF.W.0013.000000T0000Z-140729T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE UT-GARFIELD UT-
202 PM MDT TUE JUL 29 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM MDT FOR
SOUTH CENTRAL WAYNE AND NORTHEASTERN GARFIELD COUNTIES...

AT 159 PM MDT...TRAINED WEATHER SPOTTERS CONTINUE TO REPORT FLASH 
FLOODING ALONG PLEASANT CREEK IN CAPITOL REEF NATIONAL PARK. RADAR 
ESTIMATES INDICATE THAT UP TO TWO INCHES OF RAIN FELL FROM EARLIER 
THUNDERSTORMS. FLASH FLOODING IS ALREADY OCCURRING...AND HAVE 
CONSUMED THE PLEASANT CREEK PARKING LOT WITH A 5 FOOT FLOOD PLAIN.

FLOOD WATERS ARE MOVING DOWN PLEASANT CREEK IN CAPITOL REEF NATIONAL 
PARK AND ARE LIKELY MOVING DOWN THE SHEETS GULCH SLOT CANYON. MOVE 
TO HIGHER GROUND NOW IF YOU ARE IN THESE AREAS!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. DRY
WASHES...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.

&&

LAT...LON 3820 11104 3808 11104 3806 11122 3816 11126

$$

GM
302 
WGUS75 KSLC 292125
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
325 PM MDT TUE JUL 29 2014

UTC017-055-292133-
/O.EXP.KSLC.FF.W.0013.000000T0000Z-140729T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAYNE UT-GARFIELD UT-
325 PM MDT TUE JUL 29 2014

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL WAYNE AND NORTHEASTERN
GARFIELD COUNTIES WILL EXPIRE AT 330 PM MDT...SPECIFICALLY FOR 
CENTRAL PORTIONS OF CAPITOL REEF NATIONAL PARK...

FLOOD WATERS ARE RECEDING...AND ARE NO LONGER EXPECTED TO POSE A 
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD 
CLOSURES.

LAT...LON 3820 11104 3808 11104 3806 11122 3816 11126

$$

GM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 12:21 PM MDTAreal Flood AdvisorySLCSalt Lake, Utah114 min
Jul 29, 1:12 PM MDTAreal Flood AdvisorySLCSalt Lake, Utah, Wasatch2 hr
Jul 29, 1:58 PM MDTSpecial Weather StatementSLCEmery62 min
Jul 29, 3:08 PM MDTSpecial Weather StatementSLC37 min
Jul 29, 4:26 PM MDTFlash Flood WarningSLCJuab, Sanpete109 min
Jul 29, 5:53 PM MDTAreal Flood AdvisorySLCDavis, Morgan, Weber82 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.