Alert archive / Utah / Flash Flood Warnings in 2005

Flash Flood Warning 8, NWS Salt Lake City, UT

July 24, 2005Emery County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Jul 24, 2005, 3:56 PM MDT for Emery County, Utah. It was in force for 64 min. 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 24, 2005, 3:56 PM MDT (21:56 UTC)
Expired
Jul 24, 2005, 5:00 PM MDT
In force
64 min
Issued by
NWS Salt Lake City, UT
Area
Counties, with a storm outline in the text

County Emery County, UT

The radar

The Grand Junction radar (KGJX), 201 km from the middle of the area, began a volume at 21:59 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 178 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 2005-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 12:00Z on 2005-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
21 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
1659 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
30 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 242159
FFWSLC
UTC015-242300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
356 PM MDT SUN JUL 24 2005

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

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

* UNTIL 500 PM MDT

* AT 349 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* THE LOCATION OF THIS WARNING IS IN A RURAL AREA JUST WEST OF SR 24
  AND JUST SOUTH OF I-70 WEST OF GREEN RIVER.

DOPPLER RADAR INDICATES A STATIONARY THUNDERSTORMS PRODUCING HEAVY 
RAIN IN AN AREA BORDERED BY SR 24 TO THE EAST AND I-70 TO THE NORTH. 

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 3873 11063 3874 11044 3890 11034 3892 11048
      3888 11060

$$
2 follow-up statements
000 
WGUS75 KSLC 242234
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
431 PM MDT SUN JUL 24 2005

UTC015-242300-
EMERY UT-
433 PM MDT SUN JUL 24 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 500 PM MDT FOR CENTRAL EMERY
COUNTY...

AT 430 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A NEARLY STATIONARY THUNDERSTORM PRODUCING SIGNIFICANT 
RAINFALL AND POSSIBLE FLASH FLOODING OVER THE WARNED AREA.

THE INITIAL THUNDERSTORM THAT BROUGHT THE HEAVY RAINFALL HAS 
WEAKENED. HOWEVER...A SECOND STORM HAS MOVED INTO THE WARNING AREA 
FROM THE WEST...AND COULD PRODUCE ANOTHER ROUND OF HEAVY RAIN.

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 3873 11063 3874 11044 3890 11034 3892 11048 3888 11060

$$
000 
WGUS75 KSLC 242308
FFSSLC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
505 PM MDT SUN JUL 24 2005

UTC015-242330-
EMERY UT-
505 PM MDT SUN JUL 24 2005

...A FLASH FLOOD WARNING FOR CENTRAL EMERY COUNTY HAS EXPIRED...
...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT TONIGHT...

THE NATIONAL WEATHER SERVICE HAS ALLOWED THE FLASH FLOOD WARNING FOR 
CENTRAL EMERY COUNTY TO EXPIRE AT 500 PM. AT 458 PM MDT...NATIONAL 
WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS 
MOVING SLOWLY EAST ALONG THE I-70 CORRIDOR. THESE THUNDERSTORMS MAY 
BE PRODUCING HEAVY RAINFALL...BUT NORTH OF THE NOW EXPIRED FLASH 
FLOOD WARNING AREA.

ADDITIONAL THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WILL MOVE 
THROUGH EAST CENTRAL UTAH THIS EVENING.  A FLASH FLOOD WATCH...WHICH 
INCLUDES EMERY COUNTY...BEEN ISSUED AND WILL BE IN EFFECT THROUGH
MIDNIGHT TONIGHT.

REMEMBER...A FLASH FLOOD WATCH MEANS THAT FLOODING IS POSSIBLE BUT 
NOT IMMINENT IN THE WATCH AREA.

LAT...LON 3873 11063 3874 11044 3890 11034 3892 11048 3888 11060

$$

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.