Storm Center Update – Sunday AM May 26

Forecast
KELO_skycam_SiouxFalls_may26

8 AM Update:
Shortly after KELOLAND This Morning, the Storm Prediction Center updated the severe weather outlook for western South Dakota. Looks like the risk for hail went up so a Slight risk was issued.

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Original Post:

BIG PICTURE:
Persistent upper level high pressure over the Gulf of Mexico and upper level low pressure over the west coast will keep the stormy pattern over the central US for a few more days. More rounds of severe weather are expected in the central US with the strongest storms south of KELOLAND today through early this week. And while today is looking mostly sunny, late this afternoon and tonight we’ll need to bring the rain and storms back into the forecast.

LOCAL FORECAST:
Temperatures will be slightly warmer today as a southerly wind brings in warm air that has been residing to our south the past few days. Expected highs are mostly in the 70s with upper 70s likely in the southeast. Showers and thunderstorms will return to western KELOLAND during the afternoon and travel into central and east KELOLAND during the evening and overnight hours and the rain will likely linger for most of Monday. With enough heating from the day, some thunderstorms may be severe with large hail or strong winds being the main threats but there is some concern for isolated tornadoes but this threat is mostly to the south.

And because we are expecting several days of decent rainfall, there is good potential for more flooding. A flood watch will go into effect this evening for western SD.

Monday will have lingering showers with thunderstorm potential in the southeast. Afternoon highs will be a little cooler. The southeast will reach the upper 60s to low 70s, central and northeast KELOLAND will reach the lower to mid 60s, and the west will be stuck in the 50s.

Tuesday will continue the rain and storm chances as another surface low pressure slides through Nebraska. Some thunderstorms are possible in the southeast, because they’ll be in the warm sector for a short time, but the rest of KELOLAND is looking at rain showers. Highs on Tuesday will be in the 50s to 60s.

The rest of the week looks dry once the rain exits southeast KELOLAND around midday on Wednesday. Then we are looking at partly cloudy skies and highs returning to the 70s. Friday looks especially warm with highs getting close to 80 degrees. 
 

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