Showers and thunderstorms formed across Utah on May 6 with a storm producing wind damage in Salt Lake County.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SLC wrote it up.
Showers and thunderstorms formed across Utah on May 6 with a storm producing wind damage in Salt Lake County.
The local office's own words before the first event, 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 the first event at May 6, 2:46 PM MST, 56 minutes earlier.
Area Forecast Discussion National Weather Service Salt Lake City UT 346 PM MDT Mon May 6 2019 .SYNOPSIS... Isolated to widely scattered showers and thunderstorms will diminish this evening. A slow moving storm system will bring scattered to numerous showers and thunderstorms Tuesday through Thursday across much of the state and into the weekend across southern Utah. && .SHORT TERM (Through 00Z Friday)... Showers and thunderstorms have again developed diurnally across Utah today with the best concentration of storms across far northwest Utah and along the central Mountains near Castle Country. This is the result of steadily increasing mid-level moisture ahead of a weak low pressure system that can be seen moving across California today. Low-levels remains dry, which is resulting in elevated convection producing gusty and erratic outflow winds. Strong to severe microburst potential remains limited today by the only modest CAPE aloft which will limit precipitation loading potential. Showers and thunderstorms will diminish with the loss of heating overnight, with temperatures remaining mild overnight. On Tuesday, the aforementioned low will weaken to an open wave across northern Arizona while a northern stream shortwave digs toward northern Utah from the Pacific Northwest. The resultant broad cyclonic flow and trough across central Utah will help concentrated shower and thunderstorm chances over much of northern and central Utah. BUFKIT profile show an increase in overall moisture and slight lowering of the LCL heights as the boundary layer starts to cool and moisten some. This will start to lower the gusty outflow wind threat although not eliminate it. Storms will also be relatively slow movers, with mean steering flow winds less than 10 knots across much of northern and central Utah. While heavy rain parameters are otherwise not ideal, the slow storm motions could result in locally heavy rainfall and isolated flooding potential. Wednesday will be very similar in terms of showers and thunderstorm coverage with perhaps slightly more moisture in place to work with. Temperatures will cool to 5-10 degrees below normal by mid-week as troughing continues to be reinforced by northern stream shortwaves carving out into the Great Basin. By Thursday, the broad troughing will start to cut off into a closed low over the dessert Southwest. Shower and thunderstorm chances will shift farther southward, concentrating more across southern and central Utah. Temperatures will remain below normal. Will need to continue to monitor for potential marginal canyon and or downslope winds event along the northern Wasatch Thursday as the low drops to our southwest with increasing easterly flow and cold advection from southwest Wyoming into northern Utah. .LONG TERM (After 00Z Friday)... A complicated, but typical shoulder season pattern will continue into the long term portion of the forecast. At onset, an upper level will shift westward across Nevada through the evening Thursday as another upper level low approaches the California Coast, supported by the southern jet. The short term discussion will detail the threat for gusty canyon and/or downslope winds extending into Thursday evening. These waves will eventually gradually consolidate and then shift eastward this weekend. Given the location of the deformation axis and weak subsidence, precipitation will likely be focused across the southern half of Utah for much of the Friday to Saturday period. These systems are not cold...so snow levels will remain high through the extended forecast...matching typical May levels. Upper level ridging is expected to build into the Great Basin Sunday into early next week with yet another upper level low forecast by much of the global/ensemble guidance by Thursday. && .AVIATION... West winds early this evening at SLC could also become erratic and gusty as showers pass near the terminal. There is a 20 percent chance of direct impact to the terminal, with cloud bases likely remaining above 7000 feet. Mountain obscurations are possible. Winds will return to the south/southeast around 02-03Z. Winds will remain southerly overnight then become west to northwest after 18-20Z Tuesday. Showers and thunderstorms will become more numerous on Tuesday which could result in mountain obscurations and as well as gusty and erratic winds Tuesday afternoon. Cloud bases may dip below crest level (6000 feet) at times Tuesday afternoon. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...None. WY...None. && SHORT TERM...Church LONG TERM...Kruse AVIATION...Church For more information from NOAA's National Weather Service visit... http://weather.gov/saltlakecity For frequently asked questions about the Area Forecast Discussion visit... http://weather.gov/saltlakecity/general/afd_faqs.php
Hazardous Weather Outlook National Weather Service Salt Lake City UT 330 AM MDT Mon May 6 2019 UTZ001>016-019>021-517-518-WYZ021-070930- Cache Valley/Utah Portion-Northern Wasatch Front- Salt Lake and Tooele Valleys-Southern Wasatch Front- Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys- Wasatch Mountains I-80 North-Wasatch Mountains South of I-80- Western Uinta Mountains-Wasatch Plateau/Book Cliffs- Western Uinta Basin-Castle Country-San Rafael Swell- Sanpete/Sevier Valleys-West Central Utah-Southwest Utah- Utahs Dixie and Zion National Park-South Central Utah- Glen Canyon Recreation Area/Lake Powell-Central Mountains- Southern Mountains-Southwest Wyoming- 330 AM MDT Mon May 6 2019 This Hazardous Weather Outlook is for the western two thirds of Utah and southwest Wyoming. .DAY ONE...Today and Tonight Isolated to widely scattered showers and thunderstorms will develop again this afternoon into the evening, primarily over northern Utah, central Utah, and southwest Wyoming. Gusty winds and lightning will be the main hazards with any storms that develop, though brief heavy rainfall and small hail are also possible. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday A series of storm systems moving across the region Tuesday into Thursday will bring better coverage of showers and thunderstorms along with cooler temperatures. Locally heavy rainfall with any storms that develop. Snow levels will still be on the high side, with accumulating snows generally above the 9000 foot elevation. Temperatures will warm once again heading into the upcoming weekend. This will accelerate snowmelt at the mid and high elevations, resulting in streams and rivers running high, fast and cold across the outlook area through the remainder of the Spring. Monitor children and pets closely near these waterways. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. For more information from NOAA/s National Weather Service visit... http://weather.gov/saltlakecity For information on potential road travel impacts visit... http://www.udottraffic.utah.gov/roadweatherforecast.aspx
Special Weather Statement
National Weather Service Salt Lake City UT
405 PM MDT MON MAY 6 2019
UTZ002-003-007-062245-
Wasatch Mountains I-80 North UT-Northern Wasatch Front UT-
Salt Lake and Tooele Valleys UT-
405 PM MDT MON MAY 6 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL SALT LAKE...EASTERN
DAVIS AND WEST CENTRAL MORGAN COUNTIES UNTIL 445 PM MDT...
At 404 PM MDT, National Weather Service Doppler radar indicated
strong outflow winds over North Salt Lake, or near
Bountiful...moving north at 25 mph.
Wind gusts of 40 to 55 mph will be possible.
Locations impacted include...
Salt Lake City, Layton, Bountiful, Farmington, Clearfield, Kaysville,
Syracuse, North Salt Lake, Centerville, Woods Cross, West Bountiful,
West Point, Fruit Heights and East Layton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If threatening weather approaches, take shelter in a sturdy building.
Strong winds with these showers may occur well ahead of any rain. Do
not wait for rain or the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
&&
LAT...LON 4109 11181 4107 11178 4102 11177 4099 11173
4076 11186 4079 11208 4112 11206
TIME...MOT...LOC 2204Z 196DEG 20KT 4084 11197
LCSpecial Weather Statement National Weather Service Salt Lake City UT 427 PM MDT MON MAY 6 2019 UTZ015-062315- West Central Utah UT- 427 PM MDT MON MAY 6 2019 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL MILLARD AND CENTRAL JUAB COUNTIES UNTIL 515 PM MDT... At 426 PM MDT, National Weather Service Doppler radar indicated thunderstorms 8 miles southwest of Delta...moving north at 15 mph. Wind gusts up to 50 mph will be possible. Locations impacted include... Delta, Hinckley, Sugarville, Abraham and Sutherland. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. && LAT...LON 3920 11250 3913 11277 3956 11295 3959 11245 TIME...MOT...LOC 2226Z 165DEG 11KT 3927 11269 LC
The Salt Lake City radar (KMTX), 70 km away, was scanning. The volume nearest the first event began at 22:40 UTC.
1 thunderstorm wind. Local standard time, as filed.
A report of multiple power poles down with one pole snapped in half on 2200 West was received.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2019Every state in 2019This day in weather historyWarnings in Utah, May 2019
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 829195.