Salt Lake City — A cut-off low approaching Utah will bring multiple rounds of rain and storms through Thursday evening, meteorologists say, raising concerns for localized flash flooding in central and southern parts of the state and a small but meaningful chance of severe weather in far southern counties.
"Happy Wednesday, Utah!"
The system is transporting a surge of unusually deep tropical moisture into the region, increasing the likelihood of scattered showers and thunderstorms that may produce heavy downpours in short periods. The National Weather Service has issued a Flood Watch for portions of central and southern Utah through late Thursday evening, urging residents in affected areas to prepare for rapid runoff and possible inundation of low-lying roads.
Where the heaviest rain is expected
Forecast guidance indicates that some locations inside the flood watch could receive between 2 and 3 inches of rain. Storm coverage will be greatest across southern and central Utah, although scattered activity is expected statewide at times as the system evolves.
| Region | Primary threat | Forecast highlights |
|---|---|---|
| Central & Southern Utah | Flash flooding, heavy rain | 2–3 inches possible in spots; Flood Watch through late Thursday |
| Far southern Utah | Isolated severe storms | Marginal to slight risk for large hail, damaging winds, isolated tornadoes |
| Wasatch Front & northern valleys | Showers, gusty winds | Highs in the 60s–70s; periods of rain |
Severe weather potential
The Storm Prediction Center has placed portions of far southern Utah in a marginal to slight risk (levels 1 and 2 of 5) for severe storms. Forecasters say the primary severe threat appears to be large hail, but damaging wind gusts — potentially reaching up to 70 mph — and isolated tornadoes cannot be ruled out in the most intense cells.
Conditions could become more broadly stormy on Thursday as a second surge of energy moves through the state. The SPC currently includes much of western and southern Utah in a marginal risk for isolated severe thunderstorms, particularly those capable of producing strong wind gusts or hail.
Timing and impacts
Rounds of rain and thunder are expected to intensify Wednesday evening and continue through Thursday. Residents should be prepared for:
- Periods of heavy rain that can lead to rapid runoff and localized flash flooding.
- Reduced visibility and hazardous driving conditions on flooded roads.
- Gusty south winds accompanying the system, especially Thursday as low pressure moves across Utah.
Travelers and outdoor recreationists in canyons and low-lying areas should exercise caution. Flash flooding can develop quickly in desert washes and narrow stream corridors, and motorists should never attempt to drive through floodwaters.
What to expect Friday and beyond
An upper-level low is projected to dig southward across northern Utah Friday, maintaining chance for northern valley showers through the day. That feature will also introduce colder air aloft and lower mountain snow levels to around 8,000 feet, creating the possibility of measurable snowfall at some higher-elevation locations, particularly in northern ranges.
Daytime highs this week will generally be in the 60s and 70s in many valleys, with gusty winds at times. Forecasts may be refined as model runs update and storm timing becomes clearer.
Safety reminders
Local officials and weather services urge residents to:
- Monitor local forecasts and alerts via the National Weather Service and trusted media sources.
- Avoid driving through flooded roadways; turn around, don’t drown.
- Be prepared for sudden changes in conditions if you are in mountain or canyon areas.
WE NEWS meteorologists will continue to follow the system and update weather briefings as new information becomes available. Residents should keep an eye on local advisories and be ready to act if flood or severe thunderstorm warnings are issued.
Spencer Holloway is the state correspondent for WE NEWS.
