Alert archive / Utah / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 2, NWS Salt Lake City, UT

June 1, 2002Juab County, Tooele County, Utah County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 1, 2002, 1:49 PM MDT for Juab County, Tooele County, Utah County, Utah. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 1, 2002, 1:49 PM MDT (19:49 UTC)
Expired
Jun 1, 2002, 2:30 PM MDT
In force
41 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Juab County, UT, Tooele County, UT, Utah County, UT

The radar

The Salt Lake City radar (KMTX), 131 km from the middle of the area, began a volume at 19:53 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 7.8 hours before the alert went out and 93 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 12:00Z on 2002-06-01Temperature 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, Salt Lake City I, UT at 12:00Z on 2002-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.193958Sfc1 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
4442 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
113 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.

723 
WWUS34 KSLC 011949
SVRSLC
UTC023-045-049-012030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
146 PM MDT SAT JUN 1 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR HIGH WINDS FOR...
  NORTHEASTERN JUAB COUNTY IN UTAH
  THIS INCLUDES THE CITY OF NEPHI
  TOOELE COUNTY IN UTAH
  THIS INCLUDES THE CITIES OF...GRANTSVILLE...DUGWAY...AND TOOELE
  UTAH COUNTY IN UTAH
  THIS INCLUDES THE CITIES OF...PROVO...PAYSON

* UNTIL 230 PM MDT

* AT 135 PM MDT...WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM 
  WITH HIGH WINDS FROM WESTERN TOOELE COUNTY TO NEAR DUGWAY TO 20 
  MILES SOUTHWEST OF NEPHI...MOVING NORTHEAST AT 45 MPH.

SPOTTERS REPORTED WINDS ESTIMATED UP TO 70 MPH IN DELTA AS THIS 
STORM MOVED PAST.  ROOF DAMAGE AND TREE LIMBS BROKEN HAVE ALSO BEEN 
REPORTED AT IBAPAH IN SOUTHWEST TOOELE COUNTY. 

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 1:23 PM MDTSevere Thunderstorm WarningSLCJuab, Millard, Tooele37 min
Jun 1, 2:28 PM MDTSevere Thunderstorm WarningSLCBox Elder, Davis, Salt Lake, Tooele, Utah, Weber47 min
Jun 1, 3:00 PM MDTSevere Thunderstorm WarningSLCBox Elder, Davis, Salt Lake, Tooele, Utah, Wasatch and 1 more30 min
Jun 1, 3:22 PM MDTSevere Thunderstorm WarningSLCBox Elder, Cache, Davis, Duchesne, Morgan, Salt Lake and 3 more38 min
Jun 1, 4:00 PM MDTSevere Thunderstorm WarningSLCBox Elder, Cache, Duchesne, Morgan, Rich, Summit and 2 more45 min
Jun 1, 4:46 PM MDTSevere Thunderstorm WarningSLCRich, Summit29 min

Nearby

Severe Thunderstorm Warnings in Utah, 2002Every severe thunderstorm warning in 2002

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.