Alert archive / Utah / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 41, NWS Salt Lake City, UT

June 23, 2005Carbon County, Emery County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 23, 2005, 5:15 PM MDT for Carbon County, Emery County, Utah. It was in force for 47 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: Jun 23, 2005, 5:15 PM MDT (23:15 UTC)
Expired: Jun 23, 2005, 6:02 PM MDT
In force: 47 min
Issued by: NWS Salt Lake City, UT
Area: Counties, with a storm outline in the text

Counties Carbon County, UT, Emery County, UT

The radar

The Grand Junction radar (KGJX), 197 km from the middle of the area, began a volume at 23:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 11.3 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1610 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 149 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 
WUUS55 KSLC 232315
SVRSLC
UTC007-015-240000-
/O.NEW.KSLC.SV.W.0041.050623T2315Z-050624T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
515 PM MDT THU JUN 23 2005

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CARBON COUNTY IN UTAH
  NORTH CENTRAL EMERY COUNTY IN UTAH

* UNTIL 600 PM MDT

* AT 506 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 14 MILES SOUTH OF SUNNYSIDE...OR
  ABOUT 24 MILES SOUTHEAST OF PRICE...AND MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SUNNYSIDE BY 535 PM MDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3942 11059 3925 11051 3949 11015 3976 11035

$$

AOT

2 follow-up statements

000 
WWUS55 KSLC 232336
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
536 PM MDT THU JUN 23 2005

UTC007-015-240000-
/O.CON.KSLC.SV.W.0041.000000T0000Z-050624T0000Z/
EMERY UT-CARBON UT-
536 PM MDT THU JUN 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 600 PM MDT FOR
EASTERN CARBON AND NORTH CENTRAL EMERY COUNTIES...

AT 528 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTHEAST OF EAST
CARBON...OR ABOUT 30 MILES EAST OF PRICE...MOVING NORTHEAST AT 25
MPH.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3942 11059 3925 11051 3949 11015 3976 11035

$$
AOT

000 
WWUS55 KSLC 240002
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
601 PM MDT THU JUN 23 2005

UTC007-015-240011-
/O.EXP.KSLC.SV.W.0041.000000T0000Z-050624T0000Z/
EMERY UT-CARBON UT-
601 PM MDT THU JUN 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARBON AND NORTH
CENTRAL EMERY COUNTIES EXPIRES AT 600 PM MDT...

THE THUNDERSTORM HAS WEAKENED BUT WILL STILL PRODUCE HEAVY RAIN AND 
GUSTY WINDS ALONG THE GREEN RIVER...EAST OF SUNNYSIDE.

LAT...LON 3942 11059 3925 11051 3949 11015 3976 11035

$$

AOT

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Salt Lake City, UT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 4:00 PM MDT, 1 hour 15 minutes earlier.

Area forecast discussion, Jun 23, 4:00 PM MDT, 1 hour 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
400 PM MDT THU JUN 23 2005

.SYNOPSIS...MOIST SOUTHERLY FLOW IN PLACE OVER UTAH THROUGH THE END
OF THE WEEK. UNSEASONABLY COOL TROUGH MOVES INTO THE GREAT BASIN
EARLY NEXT WEEK.

&&

.DISCUSSION...CONVECTION FIRED AS ANTICIPATED THIS
AFTERNOON...ISOLATED SEVERE STORMS ACROSS CENTRAL UTAH MOUNTAINS AND
UINTAS. SHORTWAVE TROUGH MOVING INTO NORTHWESTERN UTAH AT
TIME...WILL SEE CONVECTION CONTINUE UNTIL A FEW HOURS AFTER SUNSET.
SHOULD BE A QUIET NIGHT WITH LOW FAIRLY SIMILAR TO LAST NIGHT.

A SIMILAR DAY TOMORROW...ISOLATED TO SCATTERED COVERAGE OF
THUNDERSTORMS...WITH MOSTLY PULSE TYPE STORMS. BOTH NAM AND GFS BOTH
PAINT CONVECTIVE QPF A BIT FARTHER WEST TOMORROW...CONSISTENT WITH A
SLIGHT WESTWARD SHIFT OF THE CONTINENTAL ANTICYCLONE OVER THE HIGH
PLAINS. KEPT CHANCE POPS IN AFTERNOON/EVENING FOR THUNDERSTORMS.

PACIFIC CUTOFF CURRENTLY STALLED OFF THE CA COAST PROGGED TO OPEN UP
AND MOVE INLAND EARLY SUNDAY..AND PASS ACROSS CWA BY LATE IN THE
DAY. GFS INDICATING A WEAK DRY COLD FRONT PASSAGE ACROSS NORTHERN
UTAH MONDAY. MUCH COOLER AIR FOLLOWS LOW PASSAGE WITH A BROAD TROUGH
SETTING UP OVER THE PAC NW. NORTHERN ZONES GET BRUSHED WITH A SERIES
OF SHORTWAVES THRU MIDWEEK.

&&

.HYDRO...LITTLE COTTONWOOD CREEK IS PROJECTED TO REMAIN BELOW
BANKFULL...BUT WILL BE CLOSELY MONITORED PENDING LOCATION OF
AFTERNOON CONVECTION AND AMOUNT OF SNOWMELT THE NEXT FEW DAYS.

&&

.AVIATION...NONE...SEE SLCTAFSLC.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.

SMITH

In the hours before

Local storm report, Jun 23, 3:44 PM MDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
344 PM MDT THU JUN 23 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0218 PM     TORNADO          8 W DUCHESNE            40.18N 110.54W
06/23/2005                   DUCHESNE           UT   LAW ENFORCEMENT

            TORNADO REPORTED BY LAW ENFORCEMENT APPROXIMATELY 8 MILES
            WEST OF DUSCHENE NEAR STATE HIGHWAY 40.

&&

MEJ

Local storm report, Jun 23, 4:39 PM MDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
439 PM MDT THU JUN 23 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0218 PM     TORNADO          8 W DUCHESNE            40.18N 110.54W
06/23/2005                   DUCHESNE           UT   LAW ENFORCEMENT

            TORNADO REPORTED BY LAW ENFORCEMENT APPROXIMATELY 8 MILES
            WEST OF DUSCHENE NEAR STATE HIGHWAY 40.

0430 PM     HAIL             PROVO                   40.25N 111.64W
06/23/2005  1.00 INCH        UTAH               UT   TRAINED SPOTTER

&&

ATARDY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 2:23 PM MDT	Tornado Warning	SLC	Duchesne	38 min
Jun 23, 4:25 PM MDT	Severe Thunderstorm Warning	SLC	Utah	39 min
Jun 23, 4:29 PM MDT	Severe Thunderstorm Warning	SLC	Salt Lake	33 min
Jun 23, 4:34 PM MDT	Severe Thunderstorm Warning	SLC	Kane	26 min
Jun 23, 4:52 PM MDT	Severe Thunderstorm Warning	SLC	Davis, Weber	23 min
Jun 23, 5:00 PM MDT	Severe Thunderstorm Warning	SLC	Kane	46 min

Nearby

Severe Thunderstorm Warnings in Utah, 2005 Every severe thunderstorm 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.