Flash flooding possible after severe thunderstorms, record-breaking heat this weekend

Alana Brophy
·2 min read

SALT LAKE CITY (ABC4) — This evening will be an active one across much of Utah, with flash flooding and severe thunderstorms expected. Storms are firing as a result of ample monsoon moisture being swept into the state from the south, remnants of Tropical Storm Alberto from earlier in the week.

The Storm Prediction Center has issued a slight risk (level 2 of 5) for severe thunderstorms for southeast Utah today, the fourth such risk for June since the late 1980s. Expect strong, damaging winds, even possible tornados in southeast Utah, with more mixed storm modes north of I-70 posing mainly a damaging wind threat, but with some risk for hail and heavy rain.

Thunderstorm activity is expected to weaken across much of the area by late evening, leaving isolated activity behind. The flood potential remains high this evening, especially in slot canyons, slickrock areas, and recent burn scars. People with outdoor plans in eastern Utah should make alternate arrangements. West of I-15, showers, and thunderstorms will be more isolated with gusty winds due to dry low levels.

On Saturday, moisture levels will remain high across central and southern Utah. Thunderstorms are likely to form over the higher terrain, potentially impacting the adjacent valleys. The flash flood threat is low but not zero. Across the rest of the state, the building heat will lead to possible record-high temperatures over the latter half of the weekend. A strong ridge will bring temperatures near or above 100°F in northern Utah, prompting an Excessive Heat Watch from the Salt Lake Valley to Brigham City and the Great Salt Lake Desert. The heat will peak again on Tuesday and Wednesday after a slight dip on Monday. Southern Utah will also experience very warm temperatures, with highs in Lake Powell and Lower Washington County ranging from 100-110°F.

With the next heatwave looming for early next week, stay hydrated! Also, take breaks in cool areas, wear light clothing, and be aware of heat exhaustion or heat stroke signs. Never leave children or pets in unattended vehicles.

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