Alert archive / Utah / Flash Flood Warnings in 2005

Flash Flood Warning 41, NWS Salt Lake City, UT

August 19, 2005Kane County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Aug 19, 2005, 12:37 PM MDT for Kane 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
Aug 19, 2005, 12:37 PM MDT (18:37 UTC)
Expired
Aug 19, 2005, 3:30 PM MDT
In force
3 hr
Issued by
NWS Salt Lake City, UT
Area
Counties, with a storm outline in the text

County Kane County, UT

The radar

The Cedar City radar (KICX), 89 km from the middle of the area, began a volume at 18:36 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 6.6 hours before the alert went out and 213 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, Flgstf/Belemont, AZ at 12:00Z on 2005-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 626 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2005-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.19395878Sfc1 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
626 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
60 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.

000 
WGUS55 KSLC 191845
FFWSLC
UTC025-192130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1237 PM MDT FRI AUG 19 2005

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CONTINUED THE

* FLASH FLOOD WARNING FOR...
  CENTRAL KANE COUNTY IN UTAH

* UNTIL 330 PM MDT

* AT 1232 PM MDT...THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY 
RECEIVED REPORTS OF FLASH FLOODING IN THE SLOT CANYONS AND 
TRIBUTARIES OF THE LOWER PARIA RIVER NEAR THE UTAH ARIZONA BORDER.

REPORTS FROM GRAND STAIRCASE NATIONAL MONUMENT RANGERS INDICATED THE 
ROAD LEADING TO THE WHITE HOUSE TRAILHEAD IN SOUTH CENTRAL KANE 
COUNTY HAS BEEN WASHED OUT.  ADDITIONALLY...FLASH FLOODING IS LIKELY 
ON OTHER SLOT CANYONS AND TRIBUTARIES IN THE AREA.

THE FLASH FLOOD WARNING HAS BEEN EXTENDED DUE TO CONTINUING 
RAINFALL IN THE AREA...IN ADDITION TO TRAVEL TIME OF CURRENT FLOOD 
WATERS TO PASS THE UTAH ARIZONA BORDER.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3700 11232 3700 11161 3734 11162 3733 11232

$$

MCINERNEY
2 follow-up statements
000 
WGUS75 KSLC 192052
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
237 PM MDT FRI AUG 19 2005

UTC025-192130-
KANE UT-
237 PM MDT FRI AUG 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 330 PM MDT FOR CENTRAL KANE
COUNTY...

RAINFALL CONTINUES OVER SOUTH CENTRAL KANE COUNTY WHERE MANY SLOT 
CANYONS ARE NOW FLOODING. ADDITIONALLY...MANY ROADS IN THE GRAND 
STAIRCASE NATIONAL MONUMENT ARE ARE IMPASSABLE DUE TO THE HEAVY 
RAINFALL. 

AS A RESULT OF THE CONTINUED RAINFALL...SMALL WASHES AND SLOT 
CANYONS ARE EXPECTED TO REMAIN IN FLOOD THROUGHOUT THE REMAINDER OF 
THE AFTERNOON AND INTO THE EVENING HOURS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE.

LAT...LON 3700 11232 3700 11161 3734 11162 3733 11232

$$

MCINERNEY
000 
WGUS75 KSLC 192129
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
324 PM MDT FRI AUG 19 2005

UTC025-192130-
KANE UT-
324 PM MDT FRI AUG 19 2005

...THE FLASH FLOOD WARNING FOR CENTRAL KANE COUNTY HAS BEEN ALLOWED 
TO EXPIRE...

THE FLASH FLOOD WARNING ISSUED FOR CENTRAL KANE COUNTY HAS BEEN 
ALLOWED TO EXPIRE. RAINFALL OVER THE AREA HAS DIMINISHED...ALTHOUGH 
THE THREAT OF HEAVY RAINFALL REMAINS.

SMALL WASHES AND SLOT CANYONS CAN BE EXPECTED TO FLOW THROUGHOUT THE 
AFTERNOON AND EVENING HOURS.  ADDITIONALLY...MANY ROADS IN THE AREA 
ARE IMPASSABLE DUE TO THE HEAVY RAINFALL.  

A FLASH FLOOD WATCH REMAINS OVER SOUTHERN UTAH UNTIL 10 PM 
TONIGHT.


LAT...LON 3700 11232 3700 11161 3734 11162 3733 11232

$$

MCINERNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 10:04 AM MDTFlash Flood WarningSLCKane3 hr
Aug 19, 1:32 PM MDTFlash Flood WarningSLCWashington6 hr
Aug 19, 5:56 PM MDTFlash Flood WarningSLCWashington109 min

Nearby

Flash Flood Warnings in Utah, 2005Every flash flood warning in 2005

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.