High winds developed over Rollette and Pierce Counties where a wake low developed behind thunderstorms that passed through earlier in the morning.
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The episode as NWS BIS wrote it up.
High winds developed over Rollette and Pierce Counties where a wake low developed behind thunderstorms that passed through earlier in the morning.
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 Bismarck, ND wrote its last area forecast discussion before the first event at Jun 1, 5:45 AM CST, 2 hours 45 minutes earlier.
Area Forecast Discussion National Weather Service Bismarck ND 645 AM CDT Sat Jun 1 2019 .UPDATE... Issued at 643 AM CDT Sat Jun 1 2019 Temperatures were cooler this morning than anticipated...with lows so far in the lower 30s at the Hettinger AP, and mid and upper 30s and lower 40s over much of western and central North Dakota. Some high cirrus clouds over northern North Dakota moving south, but expect as the sun rises higher we will see the extent of smoke and be able to assess the density of the smoke. Suspect that southwestern North Dakota has a good area of dense smoke aloft, as Beach airport has been reporting mid-level clouds all night, but satellite pics have shown mainly cloud-free areas. Otherwise current forecast on track. && .SHORT TERM...(Today and tonight) Issued at 341 AM CDT Sat Jun 1 2019 The main challenge for today will be the affects of dense smoke aloft from the western Canadian wildfires. Northwesterly flow aloft will continue today , as a western lobe of the Hudson Bay low moves southeast across Manitoba and Ontario today. At the surface, high pressure was centered over north central Canada, with its axis extending southward into eastern Montana and the western Dakotas. Today the high pressure axis is forecast to move eastward into the eastern Dakotas. We should see northwesterly winds today around 10 to 15 mph across central North Dakota, while in western North Dakota the northwesterly winds should become northeasterly, then eventually easterly by this evening as the high moves east. Normally, sky cover would not be much of an issue, with mainly some cirrus clouds bringing partly to mostly sunny skies to our area. However, the HRRR high resolution model's smoke forecast is suggesting a more dense area of smoke (perhaps both aloft and the surface) across the western third of North Dakota today. We are not seeing any visibility restrictions early this morning across the region yet. Will keep the mention of smoky/hazy sky conditions in the state forecast wording. Yesterday's day shift mentioned smoke particles aloft forming some cumulus clouds, as the dense smoke particles were acting as condensation nuclei. The effect in temperatures was noticeable, with highs in the lower 60s along the east-west band of smoke/clouds...and upper 60s north and south of this area. That said, not confident enough to lower expected temperatures for today. Expecting highs in the low to mid 70s, but if enough dense smoke sets up over an area this afternoon, it may inhibit the temperatures from rising - some areas may see highs only in the 60s where smoke is dense enough. Tonight the surface high ridge moves eastward slowly into the eastern Dakotas and western Minnesota, with surface winds becoming more southeasterly. Expect lows tonight in the 40s central to the lower 50s west. .LONG TERM...(Sunday through Friday) Issued at 341 AM CDT Sat Jun 1 2019 Sunday we will see a transition from northerly flow aloft to a more zonal west to east flow, as the position of the large Hudson Bay Low moves east and ridging builds over the Canadian Prairies. This should result in some relief in our area from the smoke from the ongoing Canadian wildfires. South of the upper level ridging in western Canada, a trough over the western US cuts off over California/Nevada, and is associated with general instability over much of the western US states. Dry and mild conditions can be expected over North Dakota, but the southwest will see a slight chance of afternoon and evening showers and thunderstorms. Highs Sunday should range from the lower 70s in the Turtle Mountains and James Valley to the lower 80s in northwestern North Dakota. Monday through Friday...a zonal flow aloft is expected for most of this period, then becoming more southwesterly Friday and into the upcoming weekend as the GFS and EC show a deeper low/trough digging into the intermountain west. Periodic shortwaves will lead to some chances of showers/thunderstorms each day. Monday afternoon and evening shows promise of plenty of increasing low level moisture with good southerly winds and increasing CAPE with modest shear. Will monitor this period for the potential of severe storms. The Storm Prediction Center is suggesting that confidence is low at this time that we will see enough low level moisture for a mention of a marginal threat 3 days out. The end of the week may favor better chances for severe thunderstorms with the southwest flow aloft and better chances of low level moisture reaching the Northern Plains. Above average temperatures expected Monday through Friday, with highs mainly in the upper 70s and 80s, and lows mainly in the 50s and lower 60s. && .AVIATION...(For the 12Z TAFS through 12Z Sunday morning) Issued at 643 AM CDT Sat Jun 1 2019 Main forecast issue for the 12Z TAF forecast will be potential visibility restrictions due to smoke. Light and variable winds expected early this morning, as surface high pressure settles over eastern Montana and western North Dakota, with KJMS maintaining a northerly wind around 5 knots. Winds to become northwesterly around 5 to 10 knots after around 15z, then becoming light again around 00z and turning southeasterly as surface high pressure moves into the eastern Dakotas. Short term models continue to point to increasing smoke over western and central North Dakota on Saturday. The Beach airport had been reporting mid-level clouds all night, with Hettinger off and on with mid level clouds. Suspect this is part of the denser smoke aloft that had been anticipated. High resolution HRRR model continues to show western North Dakota with higher concentrations of smoke particles aloft (vertical integrated smoke) to affect mainly KISN and KDIK but also reaching KMOT and KBIS at times. The HRRR is also showing near surface smoke intensity increasing in the west - particularly southwest - around/after 18z. Did not yet put a visibility restriction at KDIK for smoke, but expect we may have more confidence by the 18z TAF issuance to include a visibility restriction. Overall expect VFR at TAF sites for the 12z TAF cycle. The far southwest, including KDIK, may see MVFR visibilities in smoke later today. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && UPDATE...JV SHORT TERM...JV LONG TERM...JV AVIATION...JV
Hazardous Weather Outlook National Weather Service Bismarck ND 849 AM CDT Sat Jun 1 2019 NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-021400- Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-Ward- McHenry-Pierce-McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Wells- Foster-Golden Valley-Billings-Stark-Morton-Burleigh-Kidder- Stutsman-Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-Logan- La Moure-McIntosh-Dickey- 849 AM CDT Sat Jun 1 2019 /749 AM MDT Sat Jun 1 2019/ This Hazardous Weather Outlook is for portions of north central North Dakota, northwest North Dakota, south central North Dakota, southeast North Dakota, and southwest North Dakota. .DAY ONE...Today and Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday through Friday There are chances for thunderstorms Monday, then again Wednesday night through Friday. As of now, there is a low probability for severe thunderstorms. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. CJS/JV
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
A mature cottonwood tree blew down in the high winds near the community of Rolette.
Wind gusts are estimated for northern Pierce County based on the report in Rolette County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2019Every state in 2019This day in weather historyWarnings in North Dakota, June 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: 825418, 825419.