Winter Weather Advisory issued May 13 at 2:13PM MDT until May 14 at 9:00AM MDT by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations of 4 to 8 inches at pass level, with higher amounts above pass level. * WHERE...The Mountains of Southwestern Montana south of Interstate 90. * WHEN...From 8 PM this evening to 9 AM MDT Wednesday. * IMPACTS...Higher mountain passes will likely become snow covered and slippery. Those recreating in the backcountry should prepare for winter conditions. * ADDITIONAL DETAILS...Above 8,000 ft, heavy snow accumulations of up to a foot and above is expected in the Madison and Gallatin County Mountains.
Red Flag Warning issued May 13 at 3:38PM CDT until May 13 at 9:00PM CDT by NWS Sioux Falls SD
* AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. * WINDS...South 15 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
Fire Weather Watch issued May 12 at 9:55PM CDT until May 13 at 9:00PM CDT by NWS Sioux Falls SD
* AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. * WINDS...South 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
Winter Weather Advisory issued May 12 at 1:23PM MDT until May 13 at 9:00AM MDT by NWS Great Falls MT
* WHAT...Snow expected. Total snow accumulations of 3 to 8 inches above 7000 feet. Isolated higher amounts around Pony. * WHERE...The Mountains of Southwestern Montana south of Interstate 90, and Elkhorn and Boulder Mountains. * WHEN...From 8 PM this evening to 9 AM MDT Tuesday. * IMPACTS...Higher mountain passes will likely become snow covered and slippery.
Air Quality Alert issued May 12 at 4:45PM CDT by NWS Sioux Falls SD
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for ozone pollution. The Air Quality Index (AQI) is expected to reach the Orange or Unhealthy for Sensitive Groups category. * WHERE...West central, east central, central, south central, southwest, north central, and northwest Minnesota. * WHEN...From noon CDT to 9 PM CDT Tuesday. * IMPACTS...Sensitive groups, such as people with lung disease (including asthma), heart disease, children and older adults, and people who are active outdoors, may experience health effects. * ADDITIONAL DETAILS...Ground-level ozone is expected to be high once again during the afternoon hours on Tuesday across
Fire Weather Watch issued May 12 at 1:42PM CDT until May 13 at 9:00PM CDT by NWS Sioux Falls SD
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...AND FAR NORTHWEST IOWA... The National Weather Service in Sioux Falls has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Tuesday morning through Tuesday evening. * AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme
Red Flag Warning issued May 12 at 1:42PM CDT until May 12 at 9:00PM CDT by NWS Sioux Falls SD
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...AND FAR NORTHWEST IOWA... The National Weather Service in Sioux Falls has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Tuesday morning through Tuesday evening. * AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme
Red Flag Warning issued May 11 at 9:50PM CDT until May 12 at 9:00PM CDT by NWS Sioux Falls SD
...RED FLAG WARNING WILL EXPIRE AT 10 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FOR SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA...AND FAR NORTHWEST IOWA... The National Weather Service in Sioux Falls has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 9 PM CDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Iowa, Lyon, Osceola and Sioux. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson
Red Flag Warning issued May 11 at 7:46PM CDT until May 11 at 10:00PM CDT by NWS Sioux Falls SD
* AFFECTED AREA...In Iowa, Dickinson, O'Brien, Clay and Plymouth. In Nebraska, Dixon and Dakota. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
Hydrologic Outlook issued May 11 at 10:18AM MDT by NWS Great Falls MT
ESFTFX Despite cooler temperatures expected this week, the recent string of warm daytime and mild overnight temperatures has spurred an increase in high elevation snowmelt, resulting in within bank rises on some creeks and upper tributary rivers near the mountains. Scattered precipitation through Monday may add to some localized runoff but widespread precipitation expected to develop across primarily central and southwest Montana Tuesday and Wednesday is likely to fall as snow at elevations where a lingering snowpack exists. Significant rises are not expected on larger rivers, but some creeks and small rivers in the mountains and adjacent foothills may reach