Alert archive / Utah / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Salt Lake City, UT

June 6, 2019Box Elder County, Tooele County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 6, 2019, 5:25 PM MDT for Box Elder County, Tooele County, Utah. It was in force for 35 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 6, 2019, 5:25 PM MDT (23:25 UTC)
Expired: Jun 6, 2019, 6:00 PM MDT
In force: 35 min
Issued by: NWS Salt Lake City, UT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Box Elder County, UT, Tooele County, UT

The radar

The Salt Lake City radar (KMTX), 61 km from the middle of the area, began a volume at 23:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 6, 1:54 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Elko, NV (KLKN), launched 12:00Z, 11.4 hours before the alert went out and 98 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: 2352 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

126 
WUUS55 KSLC 062325
SVRSLC
UTC003-045-070000-
/O.NEW.KSLC.SV.W.0021.190606T2325Z-190607T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Salt Lake City UT
525 PM MDT THU JUN 6 2019

The National Weather Service in Salt Lake City has issued a

* Severe Thunderstorm Warning for...
  South central Box Elder County in northern Utah...
  North central Tooele County in northern Utah...

* Until 600 PM MDT

* At 525 PM MDT, a severe thunderstorm was located 14 miles north of
  Knolls, or 43 miles northwest of Grantsville, moving northeast at
  40 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Lakeside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4071 11314 4096 11337 4134 11292 4105 11265
TIME...MOT...LOC 2325Z 226DEG 36KT 4092 11318 

HAIL...1.00IN
WIND...60MPH
 
$$

Bonnette

2 follow-up statements

683 
WWUS55 KSLC 062349
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
549 PM MDT THU JUN 6 2019

UTC003-045-070000-
/O.CON.KSLC.SV.W.0021.000000T0000Z-190607T0000Z/
Box Elder UT-Tooele UT-
549 PM MDT THU JUN 6 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MDT
FOR SOUTH CENTRAL BOX ELDER AND NORTH CENTRAL TOOELE COUNTIES...

At 548 PM MDT, a severe thunderstorm was located 23 miles northwest
of Delle, or 42 miles northwest of Grantsville, moving northeast at
40 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Lakeside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4076 11307 4112 11317 4134 11292 4105 11265
TIME...MOT...LOC 2348Z 226DEG 36KT 4109 11295 

HAIL...<.75IN
WIND...60MPH
 
$$

Church

848 
WWUS55 KSLC 062357 RRA
SVSSLC

Severe Weather Statement
National Weather Service Salt Lake City UT
557 PM MDT THU JUN 6 2019

UTC003-045-070007-
/O.EXP.KSLC.SV.W.0021.000000T0000Z-190607T0000Z/
Box Elder UT-Tooele UT-
557 PM MDT THU JUN 6 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL BOX ELDER AND
NORTH CENTRAL TOOELE COUNTIES WILL EXPIRE AT 600 PM MDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A severe thunderstorm watch remains in effect until 1100 PM MDT for
northern Utah.

Remember, a Severe Thunderstorm Warning still remains in effect for 
portions of Tooele and Box Elder Counties until 630 PM MDT.

LAT...LON 4076 11307 4112 11317 4134 11292 4105 11265
TIME...MOT...LOC 2357Z 226DEG 36KT 4114 11289 

$$

Bonnette

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 1:28 PM MDT	Red Flag Warning	SLC	Washington	31 hr
Jun 6, 1:59 PM MDT	Special Weather Statement	SLC		46 min
Jun 6, 2:09 PM MDT	Special Weather Statement	SLC		51 min
Jun 6, 2:28 PM MDT	Severe Thunderstorm Warning	SLC	Tooele	32 min
Jun 6, 2:32 PM MDT	Special Weather Statement	SLC		28 min
Jun 6, 2:39 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder	36 min
Jun 6, 2:50 PM MDT	Special Weather Statement	SLC	Box Elder	40 min
Jun 6, 2:56 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Tooele	49 min
Jun 6, 3:01 PM MDT	Special Weather Statement	SLC	Utah	44 min
Jun 6, 3:11 PM MDT	Severe Thunderstorm Warning	SLC	Juab, Tooele, Utah, Wasatch	49 min
Jun 6, 3:21 PM MDT	Special Weather Statement	SLC	Wayne	39 min
Jun 6, 3:31 PM MDT	Special Weather Statement	SLC	Box Elder	44 min
Jun 6, 3:40 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Tooele	35 min
Jun 6, 4:03 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder	27 min
Jun 6, 4:09 PM MDT	Special Weather Statement	SLC	Salt Lake	51 min
Jun 6, 4:15 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Tooele, Weber	45 min
Jun 6, 4:21 PM MDT	Special Weather Statement	SLC	Wasatch	39 min
Jun 6, 4:29 PM MDT	Special Weather Statement	SLC	Box Elder	31 min
Jun 6, 4:33 PM MDT	Severe Thunderstorm Warning	SLC	Davis, Salt Lake, Tooele	27 min
Jun 6, 4:37 PM MDT	Severe Thunderstorm Warning	SLC	Summit, Wasatch	23 min
Jun 6, 4:41 PM MDT	Special Weather Statement	SLC	Box Elder	49 min
Jun 6, 4:45 PM MDT	Special Weather Statement	SLC	Tooele	45 min
Jun 6, 4:49 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Cache, Davis, Morgan, Salt Lake, Tooele and 1 more	41 min
Jun 6, 5:01 PM MDT	Special Weather Statement	SLC	Salt Lake	44 min
Jun 6, 5:03 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder	42 min
Jun 6, 5:06 PM MDT	Special Weather Statement	SLC	Summit	39 min
Jun 6, 5:12 PM MDT	Severe Thunderstorm Warning	SLC	Tooele	48 min
Jun 6, 5:21 PM MDT	Special Weather Statement	SLC	Sanpete	39 min
Jun 6, 5:22 PM MDT	Severe Thunderstorm Warning	SLC	Summit	33 min
Jun 6, 5:24 PM MDT	Special Weather Statement	SLC	Emery	51 min
Jun 6, 5:30 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Cache, Davis, Morgan, Salt Lake, Summit and 1 more	30 min
Jun 6, 5:31 PM MDT	Areal Flood Advisory	SLC	Box Elder, Davis, Weber	3 hr
Jun 6, 5:44 PM MDT	Special Weather Statement	SLC	Box Elder	31 min
Jun 6, 5:55 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder, Davis, Salt Lake, Tooele, Weber	35 min

Nearby

Severe Thunderstorm Warnings in Utah, 2019 Every severe thunderstorm warning in 2019

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.