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Public Safety Alerts
California Severe Extreme Heat Warning | Effective 07/27/2026 11:49
Extreme Heat Warning issued July 27 at 11:49AM PDT until July 27 at 9:00PM PDT by NWS Hanford CA
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with high temperatures up to 108.
* WHERE...Indian Wells Valley and Mojave Desert.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
Areas: Kern County CA
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:49
Expires: Monday, July 27, 2026 - 21:00
Sender: w-nws.webmaster@noaa.gov
California Severe Fire Warning | Effective 07-27-2026 11:58
Alert from InyoCountyCA
Event: Fire Warning
Desc: Tuesday, July 27, 2026 12:00 PM: This is a CONTINUATION OF AN EVACUATION WARNING in place for an active wildfire. Zones 123-B and 137-D have been downgraded to a warning. All prior warnings remain in effect. The area affected are Big Pine Canyon/Fish Springs/Aberdean/Fort Independence. Unknown duration for warning.
Areas: Inyo County CA
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:58
Expires: Tuesday, July 28, 2026 - 11:58
Sender: sscott@inyocounty.us
Arizona Severe Extreme Heat Warning | Effective 07/27/2026 11:54
Extreme Heat Warning issued July 27 at 11:54AM MST until August 2 at 8:00PM MST by NWS Flagstaff AZ
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions expected below 4000 feet, with
daytime temperatures ranging around 100 degrees at Havasupai
Gardens, and 112 to 116 degrees at Phantom Ranch.
* WHERE...Lower elevations of the Grand Canyon.
* WHEN...From 10 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Most individuals will be at risk for heat-...
Areas: Coconino County AZ
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:54
Expires: Thursday, July 30, 2026 - 10:00
Sender: w-nws.webmaster@noaa.gov
Mississippi Severe Extreme Heat Warning | Effective 07/27/2026 11:56
Extreme Heat Warning issued July 27 at 1:56PM CDT until July 28 at 9:00PM CDT by NWS Jackson MS
Event: Extreme Heat Warning
Desc: * WHAT...For the Heat Advisory, heat index values up to 110. For the
Extreme Heat Warning, dangerously hot conditions with heat index
values in excess of 110 degrees.
* WHERE...Portions of central, north central, northwest, southwest,
and west central Mississippi.
* WHEN...For the Heat Advisory, until 9 PM CDT this evening. For...
Areas: Grenada County MS, Carroll County MS, Washington County MS, Humphreys County MS, Holmes County MS, Issaquena County MS, Sharkey County MS, Yazoo County MS, Madison County MS, Warren County MS, Hinds County MS, Rankin County MS, Claiborne County MS, Copiah County MS, Simpson County MS, Jefferson County MS
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:56
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Arizona Severe Extreme Heat Warning | Effective 07/27/2026 11:54
Extreme Heat Warning issued July 27 at 11:54AM MST until August 2 at 8:00PM MST by NWS Flagstaff AZ
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions, with temperatures around 104 to
108 expected.
* WHERE...Marble and Glen Canyons and Oak Creek and Sycamore Canyons.
* WHEN...From 10 AM MST /11 AM MDT/ Friday to 8 PM MST /9 PM MDT/
Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or...
Areas: Coconino County AZ, Yavapai County AZ
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:54
Expires: Thursday, July 30, 2026 - 10:00
Sender: w-nws.webmaster@noaa.gov
Mississippi Severe Extreme Heat Warning | Effective 07/27/2026 11:56
Extreme Heat Warning issued July 27 at 1:56PM CDT until July 28 at 9:00PM CDT by NWS Jackson MS
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values in excess
of 110 degrees.
* WHERE...Portions of north central and northwest Mississippi.
* WHEN...For the first Extreme Heat Warning, until 9 PM CDT this
evening. For the second Extreme Heat Warning, from 10 AM to 9 PM
CDT Tuesday.
* IMPACTS...Heat related illnesses...
Areas: Bolivar County MS, Sunflower County MS, Leflore County MS
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:56
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Arizona Severe Extreme Heat Warning | Effective 07/27/2026 11:54
Extreme Heat Warning issued July 27 at 11:54AM MST until August 2 at 8:00PM MST by NWS Flagstaff AZ
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions, with temperatures around 106 to
112 expected below 4000 feet.
* WHERE...Yavapai County Valleys and Basins.
* WHEN...From 10 AM Friday to 8 PM MST Sunday.
* IMPACTS...Most individuals will be at risk for heat-related
illnesses without effective cooling or adequate hydration,
especially with...
Areas: Yavapai County AZ
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:54
Expires: Thursday, July 30, 2026 - 10:00
Sender: w-nws.webmaster@noaa.gov
Oklahoma, Texas Severe Extreme Heat Warning | Effective 07/27/2026 11:33
Extreme Heat Warning issued July 27 at 1:33PM CDT until July 27 at 10:00PM CDT by NWS Amarillo TX
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning today, dangerously hot
conditions with temperatures up to 110 expected. For the Heat
Advisory tomorrow, temperatures up to 105 expected.
* WHERE...In Oklahoma, Beaver and Texas Counties. In Texas,
Hansford, Hemphill, Hutchinson, Lipscomb, Moore, Ochiltree,
Roberts, and Sherman Counties.
*...
Areas: Texas County OK, Beaver County OK, Sherman County TX, Hansford County TX, Ochiltree County TX, Lipscomb County TX, Moore County TX, Hutchinson County TX, Roberts County TX, Hemphill County TX
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:33
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Kansas, Nebraska Severe Extreme Heat Warning | Effective 07/27/2026 11:12
Extreme Heat Warning issued July 27 at 1:12PM CDT until July 27 at 10:00PM CDT by NWS Hastings NE
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions for a third consecutive day, with
afternoon and early evening heat index values reaching up to around
110 to 120 degrees.
* WHERE...Portions of north central Kansas and central, east central,
and south central Nebraska.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Heat related illnesses...
Areas: Phillips County KS, Smith County KS, Jewell County KS, Rooks County KS, Osborne County KS, Mitchell County KS, Valley County NE, Greeley County NE, Nance County NE, Sherman County NE, Howard County NE, Merrick County NE, Polk County NE, Dawson County NE, Buffalo County NE, Hall County NE, Hamilton County NE, York County NE, Gosper County NE, Phelps County NE, Kearney County NE, Adams County NE, Clay County NE, Fillmore County NE, Furnas County NE, Harlan County NE, Franklin County NE, Webster County NE, Nuckolls County NE, Thayer County NE
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:12
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Montana Severe Extreme Heat Warning | Effective 07/27/2026 10:46
Extreme Heat Warning issued July 27 at 11:46AM MDT until July 28 at 12:00AM MDT by NWS Billings MT
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with temperatures up to 102 occurring. For the Heat Advisory,
temperatures up to 97 expected.
* WHERE...Custer.
* WHEN...For the Extreme Heat Warning, until midnight MDT tonight.
For the Heat Advisory, from midnight tonight to midnight MDT
Tuesday Night.
*...
Areas: Custer County MT
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:46
Expires: Tuesday, July 28, 2026 - 11:00
Sender: w-nws.webmaster@noaa.gov
Arkansas Severe Extreme Heat Warning | Effective 07/27/2026 11:28
Extreme Heat Warning issued July 27 at 1:28PM CDT until July 28 at 8:00PM CDT by NWS Little Rock AR
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values up to 115.
* WHERE...Portions of central, eastern, north central, southeast,
and western Arkansas.
* WHEN...Until 8 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Areas: Sharp County AR, Randolph County AR, Independence County AR, Lawrence County AR, Cleburne County AR, Jackson County AR, Conway County AR, Faulkner County AR, White County AR, Woodruff County AR, Perry County AR, Saline County AR, Pulaski County AR, Lonoke County AR, Prairie County AR, Monroe County AR, Jefferson County AR, Arkansas County AR, Lincoln County AR, Desha County AR, Drew County AR, Johnson County AR, Pope County AR, Van Buren County AR, Logan County AR, Scott County AR, Yell County AR
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:28
Expires: Tuesday, July 28, 2026 - 05:00
Sender: w-nws.webmaster@noaa.gov
Kansas Severe Extreme Heat Warning | Effective 07/27/2026 10:45
Extreme Heat Warning issued July 27 at 12:45PM CDT until July 27 at 9:00PM CDT by NWS Wichita KS
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 112. For the Heat Advisory, heat index
values up to 106 expected.
* WHERE...Portions of south central and southeast Kansas.
* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat Advisory, from 9 PM this...
Areas: Reno County KS, Harvey County KS, Butler County KS, Greenwood County KS, Woodson County KS, Allen County KS, Kingman County KS, Sedgwick County KS, Harper County KS, Sumner County KS, Cowley County KS, Elk County KS, Wilson County KS, Neosho County KS, Chautauqua County KS, Montgomery County KS, Labette County KS
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:45
Expires: Tuesday, July 28, 2026 - 06:00
Sender: w-nws.webmaster@noaa.gov
Montana Severe Extreme Heat Warning | Effective 07/27/2026 10:46
Extreme Heat Warning issued July 27 at 11:46AM MDT until July 28 at 12:00AM MDT by NWS Billings MT
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with temperatures up to 102
occurring.
* WHERE...Carter and Fallon.
* WHEN...Until midnight MDT tonight.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Hot daytime temperatures combined with warm
overnight low temperatures will produce cumulative heat stress....
Areas: Fallon County MT, Carter County MT
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:46
Expires: Monday, July 27, 2026 - 23:00
Sender: w-nws.webmaster@noaa.gov
Texas Severe Extreme Heat Warning | Effective 07/27/2026 11:33
Extreme Heat Warning issued July 27 at 1:33PM CDT until July 27 at 10:00PM CDT by NWS Amarillo TX
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with temperatures up to 110. For the Heat Advisory tomorrow,
temperatures up to 109 degrees.
* WHERE...Palo Duro Canyon.
* WHEN...For the Extreme Heat Warning, until 10 PM CDT this evening.
For the Heat Advisory, from 10 PM this evening to 10 PM CDT
Tuesday.
*...
Areas: Randall County TX
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:33
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Tennessee Severe Extreme Heat Warning | Effective 07/27/2026 10:39
Extreme Heat Warning issued July 27 at 12:39PM CDT until July 28 at 8:00PM CDT by NWS Nashville TN
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values up to 112.
* WHERE...Dickson, Hickman, Houston, Humphreys, Lawrence, Lewis,
Montgomery, Perry, Stewart, and Wayne Counties.
* WHEN...Until 8 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Areas: Stewart County TN, Montgomery County TN, Houston County TN, Humphreys County TN, Dickson County TN, Perry County TN, Hickman County TN, Lewis County TN, Wayne County TN, Lawrence County TN
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:39
Expires: Tuesday, July 28, 2026 - 05:00
Sender: w-nws.webmaster@noaa.gov
Iowa Severe Extreme Heat Warning | Effective 07/27/2026 10:19
Extreme Heat Warning issued July 27 at 12:19PM CDT until July 27 at 10:00PM CDT by NWS Des Moines IA
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values up to
around 110 to 115 expected.
* WHERE...Most of central and southern Iowa.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Areas: Butler County IA, Bremer County IA, Calhoun County IA, Webster County IA, Hamilton County IA, Hardin County IA, Grundy County IA, Black Hawk County IA, Carroll County IA, Greene County IA, Boone County IA, Story County IA, Marshall County IA, Tama County IA, Audubon County IA, Guthrie County IA, Dallas County IA, Polk County IA, Jasper County IA, Poweshiek County IA, Cass County IA, Adair County IA, Madison County IA, Warren County IA, Marion County IA, Mahaska County IA, Adams County IA, Union County IA, Clarke County IA, Lucas County IA, Monroe County IA, Wapello County IA, Taylor County IA, Ringgold County IA, Decatur County IA, Wayne County IA, Appanoose County IA, Davis County IA
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:19
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Illinois, Missouri Severe Extreme Heat Warning | Effective 07/27/2026 10:14
Extreme Heat Warning issued July 27 at 12:14PM CDT until July 27 at 9:00PM CDT by NWS St Louis MO
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 111. For the Heat Advisory, heat index
values up to 102 expected.
* WHERE...In Illinois, Madison IL County. In Missouri, Saint Charles
MO, Saint Louis City MO, and Saint Louis MO Counties.
* WHEN...For the Extreme Heat Warning, until 9...
Areas: Madison County IL, St. Charles County MO, St. Louis County MO
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:14
Expires: Tuesday, July 28, 2026 - 04:15
Sender: w-nws.webmaster@noaa.gov
Illinois, Missouri Severe Extreme Heat Warning | Effective 07/27/2026 10:14
Extreme Heat Warning issued July 27 at 12:14PM CDT until July 28 at 7:00PM CDT by NWS St Louis MO
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values up to 110
expected.
* WHERE...Portions of south central and southwest Illinois and east
central and southeast Missouri.
* WHEN...Until 7 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Areas: Washington County IL, Randolph County IL, St. Clair County IL, Monroe County IL, Jefferson County MO, Crawford County MO, Washington County MO, St. Francois County MO, Ste. Genevieve County MO, Iron County MO, Madison County MO, Reynolds County MO
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:14
Expires: Tuesday, July 28, 2026 - 04:15
Sender: w-nws.webmaster@noaa.gov
Illinois, Missouri Severe Extreme Heat Warning | Effective 07/27/2026 10:14
Extreme Heat Warning issued July 27 at 12:14PM CDT until July 27 at 9:00PM CDT by NWS St Louis MO
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110. For the Heat Advisory, heat index
values up to 103 expected.
* WHERE...Portions of south central Illinois and central and east
central Missouri.
* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat...
Areas: Bond County IL, Clinton County IL, Marion County IL, Boone County MO, Moniteau County MO, Cole County MO, Osage County MO, Callaway County MO, Montgomery County MO, Lincoln County MO, Gasconade County MO, Warren County MO, Franklin County MO
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 10:14
Expires: Tuesday, July 28, 2026 - 04:15
Sender: w-nws.webmaster@noaa.gov
Kansas, Missouri Severe Extreme Heat Warning | Effective 07/27/2026 09:32
Extreme Heat Warning issued July 27 at 11:32AM CDT until July 28 at 7:00AM CDT by NWS Springfield MO
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110. For the Heat Advisory, heat
index values up to 105 expected.
* WHERE...Portions of southeast Kansas and central, east central,
south central, southwest, and west central Missouri.
* WHEN...For the Extreme Heat Warning, until 7 AM...
Areas: Bourbon County KS, Crawford County KS, Cherokee County KS, Benton County MO, Morgan County MO, Miller County MO, Maries County MO, Vernon County MO, St. Clair County MO, Hickory County MO, Camden County MO, Pulaski County MO, Phelps County MO, Barton County MO, Cedar County MO, Polk County MO, Dallas County MO, Laclede County MO, Texas County MO, Dent County MO, Jasper County MO, Dade County MO, Greene County MO, Webster County MO, Wright County MO, Newton County MO, Lawrence County MO, Christian County MO, Douglas County MO, Howell County MO, Shannon County MO, McDonald County MO, Barry County MO, Stone County MO, Taney County MO, Ozark County MO, Oregon County MO
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:32
Expires: Tuesday, July 28, 2026 - 05:00
Sender: w-nws.webmaster@noaa.gov
Kansas Severe Extreme Heat Warning | Effective 07/27/2026 09:34
Extreme Heat Warning issued July 27 at 11:34AM CDT until July 27 at 9:00PM CDT by NWS Dodge City KS
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110. For the Heat Advisory, heat index
values up to 105 expected.
* WHERE...Barber, Comanche, Kiowa, Pratt, Stafford, Clark, Meade, and
Seward Counties.
* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat...
Areas: Stafford County KS, Kiowa County KS, Pratt County KS, Seward County KS, Meade County KS, Clark County KS, Comanche County KS, Barber County KS
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:34
Expires: Tuesday, July 28, 2026 - 18:00
Sender: w-nws.webmaster@noaa.gov
Oklahoma Severe Extreme Heat Warning | Effective 07/27/2026 09:28
Extreme Heat Warning issued July 27 at 11:28AM CDT until July 27 at 9:00PM CDT by NWS Norman OK
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 112 expected. For the Heat Advisory,
heat index values up to 109 expected.
* WHERE...Portions of central, northern, and northwest Oklahoma.
* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat Advisory, from...
Areas: Harper County OK, Woods County OK, Alfalfa County OK, Grant County OK, Kay County OK, Ellis County OK, Woodward County OK, Major County OK, Garfield County OK, Noble County OK, Kingfisher County OK, Logan County OK, Payne County OK, Lincoln County OK
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:28
Expires: Tuesday, July 28, 2026 - 00:30
Sender: w-nws.webmaster@noaa.gov
Illinois Severe Extreme Heat Warning | Effective 07/27/2026 09:28
Extreme Heat Warning issued July 27 at 11:28AM CDT until July 27 at 7:00PM CDT by NWS Paducah KY
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values around 115. For the Heat Advisory, heat
index values up to 109 expected.
* WHERE...Hamilton, Jefferson, Saline, and Wayne IL Counties.
* WHEN...For the Extreme Heat Warning, until 7 PM CDT this evening.
For the Heat Advisory, from 7 PM this...
Areas: Jefferson County IL, Wayne County IL, Hamilton County IL, Saline County IL
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:28
Expires: Tuesday, July 28, 2026 - 02:00
Sender: w-nws.webmaster@noaa.gov
Illinois, Indiana, Kentucky Severe Extreme Heat Warning | Effective 07/27/2026 09:28
Extreme Heat Warning issued July 27 at 11:28AM CDT until July 27 at 7:00PM CDT by NWS Paducah KY
Event: Extreme Heat Warning
Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values around 115. For the Heat Advisory, heat
index values up to 109 expected.
* WHERE...Portions of southern Illinois, southwest Indiana, and
western Kentucky.
* WHEN...For the Extreme Heat Warning, until 7 PM CDT /8 PM EDT/ this
evening. For the...
Areas: Edwards County IL, Wabash County IL, White County IL, Gallatin County IL, Gibson County IN, Pike County IN, Posey County IN, Vanderburgh County IN, Warrick County IN, Spencer County IN, Caldwell County KY, Union County KY, Webster County KY, Hopkins County KY, Christian County KY, Henderson County KY, Daviess County KY, McLean County KY, Muhlenberg County KY, Todd County KY
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:28
Expires: Tuesday, July 28, 2026 - 02:00
Sender: w-nws.webmaster@noaa.gov
Illinois, Kentucky, Missouri Severe Extreme Heat Warning | Effective 07/27/2026 09:28
Extreme Heat Warning issued July 27 at 11:28AM CDT until July 28 at 7:00PM CDT by NWS Paducah KY
Event: Extreme Heat Warning
Desc: * WHAT...Dangerously hot conditions with heat index values around
115.
* WHERE...Portions of southern Illinois, western Kentucky, and
southeast Missouri.
* WHEN...Until 7 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Areas: Perry County IL, Franklin County IL, Jackson County IL, Williamson County IL, Union County IL, Johnson County IL, Pope County IL, Hardin County IL, Alexander County IL, Pulaski County IL, Massac County IL, Fulton County KY, Hickman County KY, Carlisle County KY, Ballard County KY, McCracken County KY, Graves County KY, Livingston County KY, Marshall County KY, Calloway County KY, Crittenden County KY, Lyon County KY, Trigg County KY, Perry County MO, Bollinger County MO, Cape Girardeau County MO, Wayne County MO, Carter County MO, Ripley County MO, Butler County MO, Stoddard County MO, Scott County MO, Mississippi County MO, New Madrid County MO
Severity: Severe
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:28
Expires: Tuesday, July 28, 2026 - 02:00
Sender: w-nws.webmaster@noaa.gov
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