More Than 10,000 Lightning Strikes Hit Sweden as U.S. Flash Flood Warnings Spread
Severe thunderstorms triggered flash flood warnings across parts of the United States, the Northern Mariana Islands and Sweden on Sunday and early Monday, with more than 10,000 lightning strikes recorded in Sweden and 5 to 10 inches of rain already fallen on Kelleys Island, Ohio.
Flash Flooding Underway in Ohio
Doppler radar indicated thunderstorms producing heavy rain across Kelleys Island in Erie County, Ohio. Between 5 and 10 inches of rain have fallen since late Sunday evening. Additional rainfall amounts of 2 to 5 inches are possible in the warned area early this morning. Flash flooding is ongoing or expected to begin shortly. The hazard involves flash flooding caused by thunderstorms. The source of the information is radar. The impact includes flash flooding of small streams, urban areas, basements, streets and other poor drainage and low-lying spots. [1] These conditions developed from thunderstorms that moved over the island, leading to the observed rainfall totals and the immediate risk of flooding in multiple locations. The radar data confirmed the heavy precipitation rates that produced the totals already recorded. [1] Residents and local authorities in the area faced ongoing or imminent flooding in small streams and urban zones as a direct result of the storm activity detected by radar. [1]
Extended Warnings in New York and Pennsylvania
The National Weather Service in Binghamton extended the flash flood warning for southwestern Sullivan County in central New York, southeastern Lackawanna County in northeastern Pennsylvania, Pike County in northeastern Pennsylvania and southern Wayne County in northeastern Pennsylvania. The warning was extended until 3 a.m. EDT. At 1:25 a.m. EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. [3] The extension reflected continued radar detection of heavy rain that sustained the threat of flash flooding in the listed counties. [3] The warning covered a multi-state region where radar showed the storms moving through, prompting the updated expiration time. [3]
Flooding on Wisconsin Rivers
The flood warning continues for the Kickapoo River at Gays Mills affecting Crawford County in Wisconsin. The flood warning is cancelled for the Kickapoo River at Soldiers Grove affecting Crawford County. Minor flooding is forecast. The warning for the Kickapoo River at Gays Mills continues until Tuesday afternoon. [2] The status at Gays Mills indicated minor flooding was expected to persist through the stated period while the segment at Soldiers Grove no longer required an active warning. [2] The impacts noted moderate flooding possible at certain river levels in the affected county. [2]
Pacific Islands Under Flash Flood Warning
The National Weather Service in Tiyan issued a flash flood warning for Saipan and Tinian. The warning remains in effect until 5 p.m. ChST. At 3:06 p.m. ChST, satellite estimates indicated heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. The hazard involves flash flooding caused by heavy rain. The source of the information is satellite estimates. The impact includes flash flooding of small creeks and streams, urban areas, highways, and streets as well as other poor drainage and low-lying areas. [4] Satellite estimates provided the basis for the warning that addressed flooding risks in creeks, urban zones and highways on the islands. [4]
Severe Thunderstorms Batter Sweden
Lightning struck more than 10,000 times on Sunday as a powerful thunderstorm swept across Sweden. [5] The total of more than 10,000 lightning strikes marked the scale of the thunderstorm activity that affected the country during the day. [5] The event involved severe thunderstorms that produced the recorded strikes across multiple areas. [5]
Current Status and Timing
The flash flood warning for Erie County, Ohio, was based on radar data showing ongoing or expected flooding from the reported rainfall amounts. [1] The extended flash flood warning in New York and Pennsylvania counties remained active until 3 a.m. EDT due to continued radar indications of heavy rain. [3] The flood warning for the Kickapoo River at Gays Mills in Wisconsin continued until Tuesday afternoon while the warning for Soldiers Grove was cancelled. [2] The flash flood warning for Saipan and Tinian stayed in effect until 5 p.m. ChST based on satellite estimates of heavy rain. [4] These active warnings reflected the varied sources of detection, including radar and satellite, that supported the timing and locations of the alerts. [1][2][3][4]
What to watch next includes the expiration of the flash flood warning in New York and Pennsylvania at 3 a.m. EDT, the continuation of the flood warning on the Kickapoo River at Gays Mills until Tuesday afternoon, and the flash flood warning for Saipan and Tinian until 5 p.m. ChST.
