Alert archive / Utah / Tornado Warnings in 2005

Tornado Warning 3, NWS Salt Lake City, UT

August 2, 2005Davis County, Weber County, Utah

NWS Salt Lake City, UT issued this tornado warning at Aug 2, 2005, 8:23 PM MDT for Davis County, Weber County, Utah. It was in force for 29 min. 3 reports 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
Aug 2, 2005, 8:23 PM MDT (02:23 UTC)
Expired
Aug 2, 2005, 8:52 PM MDT
In force
29 min
Issued by
NWS Salt Lake City, UT
Area
Counties, with a storm outline in the text

Counties Davis County, UT, Weber County, UT

The radar

The Salt Lake City radar (KMTX), 33 km from the middle of the area, began a volume at 02:24 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
Aug 2, 8:30 PM MDTTORNADO 06 Sw West Point, UTTORNADO PHOTOGRAPHED OVER ANTELOPE ISLAND AT 830 PM.
Aug 2, 8:54 PM MDTTSTM WND DMGWest Point, UTNUMEROUS HOMES UNDER CONSTRUCTION BLOWN DOWN
Aug 2, 8:54 PM MDTTSTM WND GST 572 W Syracuse, UT

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

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 2.4 hours before the alert went out and 38 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, Salt Lake City I, UT at 00:00Z on 2005-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 603 joules per kilogram.LCLEL10008507005003002001001 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, Salt Lake City I, UT at 00:00Z on 2005-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 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
603 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
2742 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS55 KSLC 030223
TORSLC
UTC011-057-030300-
/O.NEW.KSLC.TO.W.0003.050803T0223Z-050803T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
823 PM MDT TUE AUG 2 2005

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  DAVIS COUNTY IN UTAH
  THIS INCLUDES THE CITIES OF...SUNSET...LAYTON
  SOUTH CENTRAL WEBER COUNTY IN UTAH

* UNTIL 900 PM MDT

* AT 819 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 15 MILES
  SOUTHWEST OF SYRACUSE...OR ABOUT 18 MILES SOUTHWEST OF SUNSET...
  MOVING NORTHEAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  ANTELOPE ISLAND BY 835 PM MDT
  SYRACUSE BY 845 PM MDT
  CLEARFIELD...SUNSET...CLINTON AND ROY BY 850 PM MDT
  SOUTH WEBER AND RIVERDALE BY 855 PM MDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

LAT...LON 4099 11243 4083 11231 4103 11185 4124 11209

$$

BAS
1 follow-up statement
000 
WWUS55 KSLC 030252
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
851 PM MDT TUE AUG 2 2005

UTC011-057-030301-
/O.CAN.KSLC.TO.W.0003.000000T0000Z-050803T0300Z/
DAVIS UT-WEBER UT-
851 PM MDT TUE AUG 2 2005

...THE TORNADO WARNING FOR SOUTH CENTRAL WEBER AND DAVIS COUNTIES IS
CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER INDICATED THE ROTATION IN A 
THUNDERSTORM IN DAVIS AND SOUTHERN WEBER COUNTIES HAS WEAKENED. THIS 
STORM IS STILL CAPABLE OF PRODUCING DAMAGING WINDS.

LAT...LON 4099 11243 4083 11231 4103 11185 4124 11209

$$

SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 7:21 PM MDTSevere Thunderstorm WarningSLCMorgan, Summit24 min
Aug 2, 7:23 PM MDTSevere Thunderstorm WarningSLCDavis, Morgan, Salt Lake52 min
Aug 2, 7:45 PM MDTSevere Thunderstorm WarningSLCMorgan, Rich, Summit34 min
Aug 2, 8:57 PM MDTSevere Thunderstorm WarningSLCDavis, Morgan, Weber50 min
Aug 3, 5:24 PM MDTSevere Thunderstorm WarningSLCWashington31 min

Nearby

Tornado Warnings in Utah, 2005Every tornado warning in 2005Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.