Siam, OH 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 Siam.

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

Air Quality Alert issued July 15 at 5:30PM EDT by NWS Cleveland OH

An Air Quality Advisory for ground level fine particles has been issued by the Northeast Ohio Areawide Coordinating Agency for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory is from midnight tonight to midnight Thursday night. A code MAROON air quality alert means that air pollution concentrations within the local region are extremely hazardous for the general population. Efforts to minimize effects, even indoors, may be difficult to impossible. Follow local emergency instructions via television or radio. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Visit gohiocommute.com/noaca - Find a smarter way to travel! * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

Air Quality Alert issued July 15 at 5:15PM EDT by NWS Cleveland OH

The Ohio Environmental Protection Agency has issued an Air Quality Advisory for the entire state of Ohio, from 7 AM Thursday to midnight EDT Thursday night. Smoke from Canadian wildfires will adversely impact air quality. The Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional actions and information, please visit the Ohio Environmental Protection Agency's web site at epa.ohio.gov

Air Quality Alert issued July 15 at 5:14PM EDT by NWS Charleston WV

The Ohio Environmental Protection Agency has issued an Air Quality Advisory for the entire state of Ohio, from 7 AM Thursday to midnight EDT Thursday night. Smoke from Canadian wildfires will adversely impact air quality. The Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional actions and information, please visit the Ohio Environmental Protection Agency's web site at epa.ohio.gov

Air Quality Alert issued July 15 at 5:07PM EDT by NWS Northern Indiana

The Ohio Environmental Protection Agency has issued an Air Quality Advisory for the entire state of Ohio, from 7 AM Thursday to midnight EDT Thursday night. Smoke from Canadian wildfires will adversely impact air quality. The Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional actions and information, please visit the Ohio Environmental Protection Agency's web site at epa.ohio.gov

Air Quality Alert issued July 15 at 5:06PM EDT by NWS Pittsburgh PA

The Ohio Environmental Protection Agency has issued an Air Quality Advisory for the entire state of Ohio, from 7 AM Thursday to midnight EDT Thursday night. Smoke from Canadian wildfires will adversely impact air quality. The Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional actions and information, please visit the Ohio Environmental Protection Agency's web site at epa.ohio.gov.

Air Quality Alert issued July 15 at 5:00PM EDT by NWS Cleveland OH

An Air Quality Advisory for fine particles has been issued by The Eastgate Regional Council of Governments in partnership with the Ohio Environmental Protection Agency for Mahoning and Trumbull counties. The advisory is from midnight tonight to midnight Thursday night. A code RED air quality alert means that air pollution concentrations within the local region are unhealthful for the general population. The effects of air pollution can be minimized by avoiding outdoor exercise or strenuous activity. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

Air Quality Alert issued July 15 at 5:00PM EDT by NWS Wilmington OH

The Mid-Ohio Regional Planning Commission has issued an Air Quality Alert for Delaware, Fairfield, Franklin and Licking counties in Central Ohio, until 9 PM EDT this evening. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Mid-Ohio Regional Planning Commission's website at morpc.org/airquality. Additionally, smoke from Canadian wildfires will adversely impact air quality on Thursday. The Ohio Environmental Protection Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional information, please visit the Ohio Environmental Protection Agency's website at epa.ohio.gov.

Air Quality Alert issued July 15 at 5:00PM EDT by NWS Wilmington OH

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight EDT Thursday night. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Southwest Ohio Air Quality Agency's web site at www.southwestohioair.org/local_air_quality. Additionally, smoke from Canadian wildfires will adversely impact air quality on Thursday. The Ohio Environmental Protection Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional information, please visit the Ohio Environmental Protection Agency's website at epa.ohio.gov.

Air Quality Alert issued July 15 at 5:00PM EDT by NWS Wilmington OH

The Miami Valley Regional Planning Commission and the Regional Air Pollution Control Agency have issued an Air Quality Alert for Clark, Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the Miami Valley Region, from midnight tonight to midnight EDT Thursday night. Fine particulate levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. For additional actions and information, visit miamivalleyair.org or call 937-223-6323. Additionally, smoke from Canadian wildfires will adversely impact air quality. The Ohio Environmental Protection Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional information, please visit the Ohio Environmental Protection Agency's website at epa.ohio.gov.

Air Quality Alert issued July 15 at 5:00PM EDT by NWS Wilmington OH

The Ohio Environmental Protection Agency has issued an Air Quality Advisory for the entire state of Ohio, from 7 AM Thursday to midnight EDT Thursday night. Smoke from Canadian wildfires will adversely impact air quality. The Agency expects the Air Quality Index to be in the 'unhealthy for sensitive groups' range. For additional actions and information, please visit the Ohio Environmental Protection Agency's web site at epa.ohio.gov

Air Quality Alert issued July 15 at 2:49PM EDT by NWS Wilmington OH

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight EDT Thursday night. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Southwest Ohio Air Quality Agency's web site at www.southwestohioair.org/local_air_quality

Air Quality Alert issued July 15 at 2:49PM EDT by NWS Wilmington OH

The Miami Valley Regional Planning Commission and the Regional Air Pollution Control Agency have issued an Air Quality Alert for Clark, Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the Miami Valley Region, from midnight tonight to midnight EDT Thursday night. Fine particulate levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. For additional actions and information, visit miamivalleyair.org or call 937-223-6323

Air Quality Alert issued July 15 at 2:49PM EDT by NWS Wilmington OH

The Mid-Ohio Regional Planning Commission has issued an Air Quality Alert for Delaware, Fairfield, Franklin and Licking counties in Central Ohio, until 9 PM EDT this evening. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Mid-Ohio Regional Planning Commission's website at morpc.org/airquality

Heat Advisory issued July 15 at 2:47PM EDT until July 15 at 8:00PM EDT by NWS Cleveland OH

* WHAT...Heat index values up to 101. * WHERE...Portions of north central, northeast, and northwest Ohio. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Air Quality Alert issued July 15 at 2:26PM EDT by NWS Wilmington OH

The Miami Valley Regional Planning Commission and the Regional Air Pollution Control Agency have issued an Air Quality Alert for Clark, Darke, Greene, Miami, Montgomery, Preble, and Shelby counties in the Miami Valley Region, from midnight tonight to midnight EDT Thursday night. Fine particulate levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. For additional actions and information, visit miamivalleyair.org or call 937-223-6323

Air Quality Alert issued July 15 at 2:26PM EDT by NWS Wilmington OH

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight EDT tonight. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Southwest Ohio Air Quality Agency's web site at www.southwestohioair.org/local_air_quality

Air Quality Alert issued July 15 at 2:26PM EDT by NWS Wilmington OH

The Mid-Ohio Regional Planning Commission has issued an Air Quality Alert for Delaware, Fairfield, Franklin and Licking counties in Central Ohio, until 9 PM EDT this evening. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Mid-Ohio Regional Planning Commission's website at morpc.org/airquality

Air Quality Alert issued July 15 at 2:13PM EDT by NWS Wilmington OH

The Mid-Ohio Regional Planning Commission has issued an Air Quality Alert for Delaware, Fairfield, Franklin and Licking counties in Central Ohio, until 9 PM EDT this evening. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Mid-Ohio Regional Planning Commission's website at morpc.org/airquality

Air Quality Alert issued July 15 at 2:13PM EDT by NWS Wilmington OH

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight EDT tonight. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Southwest Ohio Air Quality Agency's web site at www.southwestohioair.org/local_air_quality

Heat Advisory issued July 15 at 1:20PM EDT until July 15 at 8:00PM EDT by NWS Wilmington OH

* WHAT...Heat index values up to 101. * WHERE...Portions of east central Indiana and central and west central Ohio. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued July 15 at 1:06PM EDT until July 15 at 8:00PM EDT by NWS Northern Indiana

* WHAT...Heat index values between 100 and 104. * WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio. * WHEN...Until 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued July 15 at 5:45AM EDT until July 15 at 8:00PM EDT by NWS Pittsburgh PA

* WHAT...Heat index values up to 102 expected. * WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...From noon today to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Air Quality Alert issued July 15 at 12:01AM EDT by NWS Wilmington OH

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight EDT tonight. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Southwest Ohio Air Quality Agency's web site at www.southwestohioair.org/local_air_quality

Air Quality Alert issued July 15 at 12:01AM EDT by NWS Wilmington OH

The Mid-Ohio Regional Planning Commission has issued an Air Quality Alert for Delaware, Fairfield, Franklin and Licking counties in Central Ohio, from 6 AM this morning to 9 PM EDT this evening. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional information, please visit the Mid-Ohio Regional Planning Commission's website at morpc.org/airquality

Air Quality Alert issued July 14 at 9:00PM EDT by NWS Cleveland OH

An Air Quality Advisory for ground level ozone has been issued by the Northeast Ohio Areawide Coordinating Agency for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory is from midnight tonight to midnight Wednesday night. Air quality levels will be unhealthy for sensitive groups during this period. If you are in the sensitive groups category of children, the elderly and those with breathing difficulties, please monitor your outdoor activity and check air quality readings at airnow.gov. Additionally, sign-up at enviroflash.info for text alerts regarding air quality. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Visit gohiocommute.com/noaca - Find a smarter way to travel! * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

Air Quality Alert issued July 14 at 5:30PM EDT by NWS Cleveland OH

An Air Quality Advisory for ground level ozone has been issued by the Northeast Ohio Areawide Coordinating Agency for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory is from midnight tonight to midnight Wednesday night. Air quality levels will be unhealthy for sensitive groups during this period. If you are in the sensitive groups category of children, the elderly and those with breathing difficulties, please monitor your outdoor activity and check air quality readings at airnow.gov. Additionally, sign-up at enviroflash.info for text alerts regarding air quality. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Visit gohiocommute.com/noaca - Find a smarter way to travel! * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

Air Quality Alert issued July 14 at 5:00PM EDT by NWS Cleveland OH

An Air Quality Advisory for ozone has been issued by The Eastgate Regional Council of Governments in partnership with the Ohio Environmental Protection Agency for Mahoning and Trumbull counties. The advisory is from midnight tonight to midnight Wednesday night. Air quality levels will be unhealthy for sensitive groups during this period. If you are in the sensitive groups category of children, the elderly and those with breathing difficulties, please monitor your outdoor activity and check air quality readings at airnow.gov. Additionally, sign-up at enviroflash.info for text alerts regarding air quality. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn