A thunderstorm moving northeast in Utah has resulted in a flash flood warning for Washington and Iron counties. The National Weather Service reported heavy rainfall causing flooding in various areas. Drivers have been advised to avoid flooded roadways and park their vehicles in higher ground to avoid any damage. Residents are urged to be cautious and stay informed about the weather conditions. The storm is expected to move out of the area with improving weather conditions predicted for the next few days..
Torrential rain Tuesday afternoon left large puddles in the Washington Fields area, Aug. 22, 2023 | Photo by Ben Lindquist, St. George News
ST. GEORGE — A strong weather cell moving northeast through the St. George area towards Cedar City and to the east prompted the National Weather Service to issue both a thunderstorm and flash flood warning Tuesday.
The thunderstorm warning is in effect until 7:45 p.m., while the flash flood warning runs until 9:45 p.m.
The flash flood warning is expected to impact Zion National Park, Kanarraville and Kolob Canyon and parts of southeastern Iron County and east-central Washington County, where eavy rain totaling 0.5-1.0 inch fell in 20 minutes, the weather service said in a news release.
At approximately 5:40 p.m., a severe thunderstorm warning and flood advisory were issued for St George, Washington, Hurricane, Santa Clara, Quail Creek State Park, Sand Hollow State Park, Ivins, Bloomington and Snow Canyon State Park. Doppler radar indicated heavy rain due to thunderstorms. Additional rainfall amounts of 0.25 to 0.75 inches are expected over the area.
Additionally, at 5:46 p.m. a severe thunderstorm was located near Sand Hollow State Park, or 20 miles east of Virgin River Gorge, moving north at 15 mph, accompanied by 60 mph wind gusts and quarter size hail, the weather service said.
The weather service also reminds Southern Utah residents of the following:
- Do not drive your vehicle through flooded roadways. Turn around — don’t drown when encountering flooded roads. Most flood deaths occur in vehicles.
- Remain alert for flooding even in locations not receiving rain. Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall.
- Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
- If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding.
The NWS forecast for St. George calls for a 30-40% chance of thunderstorms through Friday with highs in the lower- to mid-90s and lows in the high 60s. Cedar City is looking at a similar likelihood of rain through Friday with temperatures ranging between 58 and 79.
Updated Aug. 22, 2023, 7:15 p.m. to include additional flash flood warning.
Photo Gallery
Torrential rain Tuesday afternoon left large puddles in the Washington Fields area, Aug. 22, 2023 | Photo by Ben Lindquist, St. George News
Gray shaded area indicates region under National Weather Service flash flood warning, Aug. 22, 2023 | Image courtesy of National Weather Service, St. George News
Doppler radar shows storm system in Southern Utah as of 7:20 p.m. Thursday. Washington and Iron counties are under a National Weather Service flash flood warning, Aug. 22, 2023 | Image courtesy of National Weather Service, St. George News
Torrential rain Tuesday afternoon left large puddles in the Washington Fields area, Aug. 22, 2023 | Photo by Ben Lindquist, St. George News
Torrential rain Tuesday afternoon left large puddles in the Washington Fields area, Aug. 22, 2023 | Photo by Ben Lindquist, St. George News
Chart indicates likelihood of flash floods occurring in Southern Utah, Aug. 22, 2023 | Image courtesy of National Weather Service, St. George News
The National Weather Service has issued a flash flood warning for parts of Utah, including Zion National Park and Cedar City, due to heavy rain. A severe thunderstorm warning and flood advisory were also issued for several areas in southern Utah. The weather service advises residents to avoid driving through flooded roadways and remain alert for flooding even in areas not receiving rain. Campers and hikers should avoid streams and creeks. The forecast for St. George calls for a chance of thunderstorms through Friday, with temperatures in the 90s. Cedar City will also see a chance of rain with temperatures ranging from 58 to 79.
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