Five to 6 power poles were snapped down 1 mile south of Darlington due to strong thunderstorm winds. The poles were snapped off just above the ground.
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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 PIH wrote it up.
Five to 6 power poles were snapped down 1 mile south of Darlington due to strong thunderstorm winds. The poles were snapped off just above the ground. It occurred near the mouth of Antelope Springs.
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 Pocatello, ID wrote its last area forecast discussion before the first event at May 13, 1:18 PM MST, 2 hours 8 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 218 PM MDT Mon May 13 2019 .SHORT TERM...Tonight through Thursday. Warm temperatures to persist through Wednesday with daily chances for isolated to scattered showers and thunderstorms, mainly over the higher terrain. The next organized storm system will approach the area by Thursday, resulting in increased shower and thunderstorm chances, and starting the transition back to a cooler and wetter pattern. Early afternoon water vapor imagery showed an upper ridge still in place over the region, with its axis slowly shifting east downstream of a deepening upper trough over the Eastern Pacific. Seeing some increased moisture advecting into the area aboard the southwest flow ahead of this trough, which combined with diurnal instability and weak forcing from a minor shortwave topping the ridge, will continue to support isolated to scattered shower and thunderstorm chances through this evening. Could see a little remnant convection overnight, but most of this will dissipate after dark. Most of this shower/thunderstorm activity will stay confined closer to the mountains, as some orographic lift will be needed to supplement the otherwise weak forcing in place. As we head into Tuesday and Wednesday, a southwest flow aloft will persist as the upper trough continues to strengthen over the Eastern Pacific, shunting the upper ridge axis eastward onto the Plains by Wednesday. Warm conditions will persist in this regime, with high temperatures forecast to remain 8 to 14 degrees above average. Overnight lows will remain very mild as well, staying above freezing for elevations below 9-10 thousand feet. With moisture continuing to advect into the area in the southwest flow, we'll continue to see daily chances for isolated to scattered showers and thunderstorms, with these chances favoring the higher terrain through Wednesday. Expect these storms to generally be of the pulse variety, as deep layer shear remains weak, which should preclude any organized strong convection. Large-scale forcing for ascent begins to increase on Thursday ahead of the deep upper low slowly churning east toward northern CA. Thus shower and thunderstorm chances will be on the increase. Could see some more organized, stronger storms Thursday with the increased flow aloft strengthening deep layer shear profiles. The degree of instability is the biggest question at this point, and will depend on how much the thickening mid/high clouds hold back heating. Nonetheless, the possibility is there for some strong to potentially severe storms, and will continue to monitor this in the coming days. Southerly breezes will be on the increase Wednesday and further Thursday ahead of the approaching system. KB .LONG TERM...Thursday night through next Monday. We will continue to transition into a much more active pattern in the latter half of the week. While upper ridging continues to shift eastward, a dynamic upper trough will deepen into a cutoff low as it makes landfall in northern California Thursday night. With a modest mid-level jet in place, we will likely see widespread showers and thunderstorms, some may be strong or severe. The upper low will continue to push into the Eastern Great Basin over the ID/UT border Friday night while we will likely see shortwave ridging developing just behind the low. The ridging will be short-lived, however, and will be followed by another dynamic upper trough pushing inland Saturday night. GFS extended MOS guidance is pushing very strong winds into east Idaho Friday evening and Saturday, so have bumped up wind speeds slightly from the model blend, though well short of the MEX forecast of 30+ kts. Definitely something to keep an eye on as the event nears. Temperatures are looking much cooler in the latter half of the week as the upper trough works its way through the area. The approaching weather systems are bringing some abundant moisture per the ECMWF and GFS. This may bring some more flooding concerns Friday and through the weekend. Hinsberger && .AVIATION...Weakening upper ridge is allowing for some convective development this afternoon. Isolated thunderstorms are possible around mid-afternoon until around sunset tonight. Conditions should remain VFR through the period. Hinsberger && .HYDROLOGY...We continue to watch a few rivers for ongoing or anticipated flooding this week. Temperatures will remain very warm through Wednesday, with highs roughly 8-14 degrees above average and lows remaining above freezing for elevations below 9-10 thousand feet. A storm system will move in on Thursday, nudging temperatures down a little (but still above average) and increasing shower and thunderstorm chances. As this storm system then moves across the area, look for much cooler and wetter conditions for Friday into next week. Given the warm temperatures the next few days, followed by increasing precipitation chances late this week, area rivers and streams will be on the rise. A Flood Warning remains in effect for the Big Wood River at Hailey. Other rivers of concern by later this week include the Big Lost River at Howell, Henry's Fork near Rexburg, and possibly the Blackfoot River. Additional flood headlines may be needed for these in the coming days. KB && .PIH WATCHES/WARNINGS/ADVISORIES... None. &&
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
424 PM MDT MON MAY 13 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0405 PM TSTM WND GST 1 SSE ARCO 43.62N 113.30W
05/13/2019 M49 MPH BUTTE ID MESONET
OUTFLOW FROM DECAYING THUNDERSTORM.
&&
KSMITHThe Pocatello radar (KSFX), 98 km away, was scanning. The volume nearest the first event began at 22:22 UTC.
1 thunderstorm wind. Local standard time, as filed.
Five to 6 power poles were snapped down 1 mile south of Darlington due to strong thunderstorm winds. The poles were snapped off just above the ground. It occurred near the mouth of Antelope Springs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2019Every state in 2019This day in weather historyWarnings in Idaho, 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: 832000.