Lower Brule Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Lower Brule.

Use the Radar Maps link provided to understand the trajectory of a storm.

Frost Advisory issued May 10 at 8:24PM CDT until May 11 at 9:00AM CDT by NWS Sioux Falls SD

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of northwest Iowa, southwest Minnesota, and east central and southeast South Dakota. * WHEN...From 3 AM to 9 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Red Flag Warning issued May 10 at 8:20PM CDT until May 11 at 9:00PM CDT by NWS Aberdeen SD

* AFFECTED AREA...In South Dakota, Stanley, Jones and Lyman. * WINDS...South 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 19 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.

Fire Weather Watch issued May 10 at 8:20PM CDT until May 11 at 9:00PM CDT by NWS Aberdeen SD

* AFFECTED AREA...In South Dakota, Campbell, McPherson, Walworth, Edmunds, Potter, Faulk, Sully, Hughes, Hyde, Hand and Buffalo. * WINDS...South 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 25 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.

Fire Weather Watch issued May 10 at 8:20PM CDT until May 11 at 9:00PM CDT by NWS Aberdeen SD

* AFFECTED AREA...In South Dakota, Brown and Spink. * WINDS...South 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 25 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.

Fire Weather Watch issued May 10 at 8:20PM CDT until May 11 at 9:00PM CDT by NWS Aberdeen SD

* AFFECTED AREA...In South Dakota, Corson and Dewey. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 24 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.

Frost Advisory issued May 10 at 4:41PM CDT until May 11 at 9:00AM CDT by NWS Aberdeen SD

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of west central Minnesota and north central and northeast South Dakota. * WHEN...From 3 AM to 9 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Red Flag Warning issued May 10 at 12:08PM MDT until May 11 at 9:00PM MDT by NWS Rapid City SD

...HOT, DRY, AND BREEZY WEEK AHEAD, WITH NEAR CRITICAL TO CRITICAL FIRE WEATHER CONDITIONS BEGINNING MONDAY... .A near-critical to critical fire weather pattern is forecast to develop across western South Dakota starting Monday and continue through much of the week. The most critical days at this time appear to be Monday, Wednesday, and Thursday. For Monday, A Red Flag Warning has replaced the Fire Weather Watch for several counties in western SD. Other counties in western SD are still in the Fire Weather Watch. These have been issued due to a combination of hot afternoon temperatures of 85 to 95 degrees, low minimum afternoon relative humidities of 12 to 18 percent, and winds gusting as high as 30 to 40 MPH. Winds will also see a shift from south to northwest during the afternoon due to passage of a dry cold front. In this environment, any new fires could spread rapidly and be difficult to control. The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM MDT /noon CDT/ to 9 PM MDT /10 PM CDT/ Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 322 Fall River County Area, 323 Northern Foot Hills, 324 Eastern Foot Hills, 325 Custer County Plains, 326 Pine Ridge Area, 329 West Central Plains, 331 Haakon County Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Southwest 10 to 15 becoming Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of hot temperatures, gusty winds, and low relative humidity would produce critical fire weather conditions. In addition, a dry cold front will cross the region from northwest to southeast between 2 PM and 8 PM Monday, resulting in a sudden wind shift from south to northwest and an increase in wind gusts. In this environment, any new fires could spread rapidly and be difficult to control.

Fire Weather Watch issued May 10 at 12:08PM MDT until May 11 at 9:00PM MDT by NWS Rapid City SD

...HOT, DRY, AND BREEZY WEEK AHEAD, WITH NEAR CRITICAL TO CRITICAL FIRE WEATHER CONDITIONS BEGINNING MONDAY... .A near-critical to critical fire weather pattern is forecast to develop across western South Dakota starting Monday and continue through much of the week. The most critical days at this time appear to be Monday, Wednesday, and Thursday. For Monday, A Red Flag Warning has replaced the Fire Weather Watch for several counties in western SD. Other counties in western SD are still in the Fire Weather Watch. These have been issued due to a combination of hot afternoon temperatures of 85 to 95 degrees, low minimum afternoon relative humidities of 12 to 18 percent, and winds gusting as high as 30 to 40 MPH. Winds will also see a shift from south to northwest during the afternoon due to passage of a dry cold front. In this environment, any new fires could spread rapidly and be difficult to control. * AFFECTED AREA...Fire Weather Zones 319 Northern Black Hills, 320 Central Black Hills, 321 Southern Black Hills, 327 Butte County Area, 328 Perkins County and 330 Ziebach County. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...The combination of hot temperatures, gusty winds, and low relative humidity would produce critical fire weather conditions. In addition, a dry cold front will cross the region from northwest to southeast between 2 PM and 8 PM Monday, resulting in a sudden wind shift from south to northwest and an increase in wind gusts. In this environment, any new fires could spread rapidly and be difficult to control.