Severe Thunderstorms Trigger Warnings Across Michigan, Oklahoma and Kentucky
Severe thunderstorms are producing damaging winds, large hail and flash flooding across parts of Michigan, Oklahoma and Kentucky on Sunday morning while a record-setting heat wave triggers the first tropical night advisory of the year in Seoul, South Korea. [1][3]
Active Severe Thunderstorm and Flash Flood Warnings in the United States
A Severe Thunderstorm Warning remains in effect for Baraga County, Michigan, where a storm near Mohawk is moving southeast at 35 mph and producing half-dollar-size hail capable of damaging vehicles. [1] In Custer County, Oklahoma, two successive Severe Thunderstorm Warnings cover nearly stationary or slow-moving storms producing 60 mph wind gusts and nickel- to quarter-size hail, with expected damage to roofs, siding and trees in the communities of Butler, Putnam and surrounding areas. [2][5] A Flash Flood Warning has been issued for northern Hart County, Kentucky, after Doppler radar showed thunderstorms dropping 1 to 2.5 inches of rain with rates of 1 to 3 inches per hour; additional rainfall of 0.5 to 2 inches is possible and flash flooding is already occurring or imminent. [4] The warnings highlight immediate hazards from radar-indicated storms across these regions on Sunday morning. [1][2][4]
Michigan Storm Threatens Upper Peninsula Communities
A Severe Thunderstorm Warning covers Baraga County, Michigan, with a storm located near Mohawk or 7 miles south of Eagle River at 945 AM EDT. [1] The system moves southeast at 35 mph while radar indicates half-dollar-size hail as the primary hazard. [1] Damage to vehicles is expected from the hail. [1] Locations impacted include Houghton, Calumet, Eagle River, Hancock, Laurium, Chassell, Lake Linden, Hubbell, Houghton County Airport, The Upper Entrance of Portage Canal, The Lower Entrance of Portage Canal, and Phoenix. [1] The radar source confirms the storm's intensity and track through these Upper Peninsula communities. [1]
Oklahoma Thunderstorms Bring Damaging Winds and Hail
Two successive Severe Thunderstorm Warnings apply to Custer County, Oklahoma. [2][5] At 845 AM CDT, severe thunderstorms extended along a line from 4 miles southwest of Putnam to 7 miles northeast of Butler and moved southwest at 10 mph. [2] Hazards include 60 mph wind gusts and nickel-size hail, with expected damage to roofs, siding and trees. [2] Locations impacted include Butler and Putnam. [2] An earlier warning at 810 AM CDT placed a nearly stationary severe thunderstorm near Putnam, carrying 60 mph wind gusts and quarter-size hail that could damage vehicles along with wind damage to roofs, siding and trees. [5] Radar indicated both storms. [2][5]
Flash Flooding Underway in Central Kentucky
A Flash Flood Warning for northern Hart County in central Kentucky remains in effect until 1145 AM CDT. [4] At 838 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area, with between 1 and 2.5 inches of rain already fallen. [4] The expected rainfall rate reaches 1 to 3 inches in one hour, and additional rainfall amounts of 0.5 to 2 inches are possible. [4] Flash flooding is ongoing or expected to begin shortly in the area. [4] The National Weather Service in Louisville issued the warning based on these radar observations. [4]
South Korea Swelters Under First Tropical Night of the Season
Seoul recorded its first tropical night of the year after the overnight low remained at 25.2 C. [3] The city issued its first tropical night advisory at 5 p.m. Sunday, with more tropical nights expected due to high humidity. [3] The first tropical night came 12 days later than last year. [3] The advisory expanded to Seoul and most other regions where nighttime temperatures are expected to remain above 25 C. [3] Heat wave conditions continue Monday with daytime highs reaching 37 C in Daegu, Gyeongsan and Pohang, 35 C in Chuncheon and 33 C in Seoul. [3] The heat is expected to ease from Tuesday as rain moves across the country. [3]
Public Safety and Cooling Measures Reported
People cool off at Cheonggyecheon Stream in Seoul on Sunday evening as the tropical night advisory was issued for the entire city. [3] People also watch the Banpo Bridge's Moonlight Rainbow Fountain along the Han River in Seoul on Sunday. [3] These observations reflect public behavior along waterways and bridges while heat wave conditions persist into Monday before easing. [3]
What to watch next: The heat in South Korea is expected to ease from Tuesday as rain moves across the country while the active warnings in the United States address ongoing storm hazards through their stated expiration times. [3][4]






