In an emergency, call 911This site is not the official warning. Follow local authorities.
Continental Signals
Severe weather · NA
Severe weather · Heat

Heat is the quiet killer.

More people die from heat each year in the US and Canada than from any other weather hazard. Warnings arrive quietly — a bulletin, not a siren — and the danger builds across days, not hours.

United States · NWS

Advisory · Warning · HeatRisk.

The NWS issues Heat Advisories, Excessive Heat Watches, and Excessive Heat Warnings based on heat index and duration. The newer HeatRisk index (green→magenta) accounts for local acclimatization and vulnerable populations.

Canada · ECCC

Heat warnings and Humidex.

ECCC issues heat warnings on province-specific thresholds combining temperature and humidity (often via Humidex). Some provinces run tiered systems — 'heat warning' and 'extended heat warning' — and municipal health units activate cooling centres independently.

Live · Heat

Active alerts right now.

RSS ↗
Alerts near you

Point-based lookup covers US zones only. Canadian users: browse alerts by hazard below.

Last updated · Sun, 06 Sep 2026 23:45:46 GMT · cached 60s
United States · 36
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 3:35PM CDT until September 8 at 8:00PM CDT by NWS Wichita KS
    Russell; Lincoln; Barton; Ellsworth; Saline; Rice; McPherson; Marion; Chase; Reno; Harvey; Butler; Greenwood; Woodson; Allen; Kingman; Sedgwick; Harper; Sumner; Cowley; Elk; Wilson; Neosho; Chautauqua; Montgomery; Labette
    Until 9/7/2026, 12:15:00 PM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 3:21PM CDT until September 7 at 8:00PM CDT by NWS Fort Worth TX
    Fannin; Lamar
    Until 9/7/2026, 7:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 3:21PM CDT until September 7 at 8:00PM CDT by NWS Fort Worth TX
    Montague; Cooke; Grayson; Wise; Denton; Collin; Hunt; Delta; Hopkins; Tarrant; Dallas; Rockwall; Kaufman; Van Zandt; Rains; Johnson; Ellis; Henderson; Navarro
    Until 9/7/2026, 7:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 2:26PM CDT until September 6 at 7:00PM CDT by NWS St Louis MO
    Boone; Moniteau; Cole; Osage; Callaway; Gasconade; Crawford; Reynolds
    Until 9/7/2026, 12:00:00 AM
  • Extreme Heat Warning · Severe
    Extreme Heat Warning issued September 6 at 2:08PM CDT until September 8 at 7:00PM CDT by NWS Topeka KS
    Republic; Washington; Marshall; Nemaha; Brown; Cloud; Clay; Riley; Pottawatomie; Jackson; Jefferson; Ottawa; Dickinson; Geary; Morris; Wabaunsee; Shawnee; Douglas; Lyon; Osage; Franklin; Coffey; Anderson
    Until 9/7/2026, 10:15:00 AM
  • Extreme Heat Warning · Severe
    Extreme Heat Warning issued September 6 at 1:41PM CDT until September 8 at 8:00PM CDT by NWS Kansas City/Pleasant Hill MO
    Atchison; Miami; Linn; Leavenworth; Wyandotte; Johnson; Platte; Clay; Jackson; Cass; Bates
    Until 9/7/2026, 9:00:00 AM
  • Extreme Heat Warning · Severe
    Extreme Heat Warning issued September 6 at 1:41PM CDT until September 6 at 8:00PM CDT by NWS Kansas City/Pleasant Hill MO
    Doniphan; Buchanan; Clinton; Caldwell; Ray; Carroll; Lafayette; Saline; Howard; Johnson; Pettis; Cooper; Henry
    Until 9/7/2026, 1:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:36PM CDT until September 6 at 7:00PM CDT by NWS Tulsa OK
    Madison; Northern Crawford; Northern Franklin
    Until 9/7/2026, 12:00:00 AM
  • Extreme Heat Warning · Severe
    Extreme Heat Warning issued September 6 at 12:36PM CDT until September 6 at 7:00PM CDT by NWS Tulsa OK
    North and Central Sebastian; Southern Crawford; Central and Southern Franklin
    Until 9/7/2026, 5:45:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:36PM CDT until September 6 at 7:00PM CDT by NWS Tulsa OK
    Benton; Carroll; Washington; Southern Sebastian; Pushmataha; Choctaw; Washington; Nowata; Craig; Ottawa; Pawnee; Tulsa; Rogers; Mayes; Delaware; Creek; Okfuskee; Okmulgee; Wagoner; Cherokee; Adair; Muskogee; McIntosh; Pittsburg; Haskell; Latimer; Western Osage; Northern Sequoyah; Northern Le Flore; Northeast Osage; Central and Southern Sequoyah; Central Le Flore; Southeast Osage; Southern Le Flore
    Until 9/7/2026, 5:45:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:36PM CDT until September 7 at 7:00PM CDT by NWS Tulsa OK
    North and Central Sebastian; Southern Crawford; Central and Southern Franklin
    Until 9/7/2026, 5:45:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:36PM CDT until September 7 at 7:00PM CDT by NWS Tulsa OK
    Benton; Carroll; Washington; Southern Sebastian; Pushmataha; Choctaw; Washington; Nowata; Craig; Ottawa; Pawnee; Tulsa; Rogers; Mayes; Delaware; Creek; Okfuskee; Okmulgee; Wagoner; Cherokee; Adair; Muskogee; McIntosh; Pittsburg; Haskell; Latimer; Western Osage; Northern Sequoyah; Northern Le Flore; Northeast Osage; Central and Southern Sequoyah; Central Le Flore; Southeast Osage; Southern Le Flore
    Until 9/7/2026, 5:45:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:27PM CDT until September 6 at 8:00PM CDT by NWS Little Rock AR
    Marion; Baxter; Fulton; Sharp; Randolph; Stone; Izard; Independence; Lawrence; Cleburne; Jackson; Conway; Faulkner; White; Woodruff; Perry; Saline; Pulaski; Lonoke; Prairie; Monroe; Jefferson; Arkansas; Boone County Except Southwest; Newton County Higher Elevations; Searcy County Lower Elevations; Southeast Van Buren County; Boone County Higher Elevations; Newton County Lower Elevations; Northwest Searcy County Higher Elevations; Johnson County Higher Elevations; Pope County Higher Elevations; Van Buren County Higher Elevations; Eastern, Central, and Southern Searcy County Higher Elevations
    Until 9/7/2026, 1:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:27PM CDT until September 7 at 7:00PM CDT by NWS Little Rock AR
    Garland; Pike; Clark; Hot Spring; Grant; Dallas; Cleveland; Lincoln; Desha; Ouachita; Calhoun; Bradley; Drew; Southern Johnson County; Southern Pope County; Western and Northern Logan County; Northern Scott County; Northwest Yell County; Polk County Lower Elevations; Central and Eastern Montgomery County; Southern and Eastern Logan County; Central and Southern Scott County; Yell Excluding Northwest; Northern Polk County Higher Elevations; Northern Montgomery County Higher Elevations; Southeast Polk County Higher Elevations; Southwest Montgomery County Higher Elevations
    Until 9/7/2026, 2:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:27PM CDT until September 6 at 8:00PM CDT by NWS Little Rock AR
    Garland; Pike; Clark; Hot Spring; Grant; Dallas; Cleveland; Lincoln; Desha; Ouachita; Calhoun; Bradley; Drew; Southern Johnson County; Southern Pope County; Western and Northern Logan County; Northern Scott County; Northwest Yell County; Polk County Lower Elevations; Central and Eastern Montgomery County; Southern and Eastern Logan County; Central and Southern Scott County; Yell Excluding Northwest; Northern Polk County Higher Elevations; Northern Montgomery County Higher Elevations; Southeast Polk County Higher Elevations; Southwest Montgomery County Higher Elevations
    Until 9/7/2026, 2:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:24PM CDT until September 7 at 7:00PM CDT by NWS Jackson MS
    Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Washington; Humphreys; Issaquena; Sharkey; Yazoo; Madison; Warren; Hinds; Rankin; Scott; Newton; Lauderdale; Claiborne; Copiah; Jefferson; Adams; Franklin; Lincoln
    Until 9/7/2026, 3:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:24PM CDT until September 6 at 7:00PM CDT by NWS Jackson MS
    Leflore; Grenada; Carroll; Montgomery; Webster; Clay; Lowndes; Choctaw; Oktibbeha; Holmes; Attala; Winston; Noxubee; Leake; Neshoba; Kemper
    Until 9/7/2026, 12:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:24PM CDT until September 6 at 7:00PM CDT by NWS Jackson MS
    Simpson; Smith; Jasper; Clarke; Lawrence; Jefferson Davis; Covington; Jones; Marion; Lamar; Forrest
    Until 9/7/2026, 3:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:24PM CDT until September 6 at 7:00PM CDT by NWS Jackson MS
    Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Washington; Humphreys; Issaquena; Sharkey; Yazoo; Madison; Warren; Hinds; Rankin; Scott; Newton; Lauderdale; Claiborne; Copiah; Jefferson; Adams; Franklin; Lincoln
    Until 9/7/2026, 3:00:00 AM
  • Heat Advisory · Moderate
    Heat Advisory issued September 6 at 12:24PM CDT until September 7 at 7:00PM CDT by NWS Jackson MS
    Simpson; Smith; Jasper; Clarke; Lawrence; Jefferson Davis; Covington; Jones; Marion; Lamar; Forrest
    Until 9/7/2026, 3:00:00 AM
Canada · 0
  • No active alerts.
Safety

If an alert covers you.

  • →Drink water before you feel thirsty. By thirst you're already behind.
  • →Never leave children or pets in a parked car — interior temperatures can rise 20°F/11°C in 10 minutes.
  • →Check on elderly neighbours, people living alone, and anyone without AC at least twice a day.
  • →Move to a cooling centre, library, or mall if your home stays above 26°C/80°F overnight.
  • →Watch for heat stroke: hot dry skin, confusion, no sweating. This is a medical emergency — call 911.
Sources