#heatrisk
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tdiliberto.bsky.social
This team at CDC did such unbelievable work on Climate and Health. It was such a joy to work with them on heat-related topics. Without collaboration with CDC, this NWS HeatRisk product wouldn't exist.
www.wpc.ncep.noaa.gov/heatrisk/
April 2, 2025 at 5:43 PM
usili.bsky.social
Oh, that's not good from Saturday-Thursday for the amount of people that are going to get exposed to extreme heatrisk by Thursday.
June 26, 2026 at 12:45 PM
nws.noaa.gov
Yes. It's summer, it's hot. However, what's in store for the southwest and Inter-mountain West into the weekend will be record highs during the hottest time of the year–dangerous for anyone that's unprepared while outdoors. Plan accordingly. weather.gov/heat
NOAA HeatRisk map for Saturday across the western United States. Extreme HeatRisk (purple) is concentrated across portions of central Idaho, the Sierra Nevada and interior California, southern Nevada, western and central Arizona, and parts of western Utah, indicating the highest level of heat impacts. Major HeatRisk (red) surrounds these areas across much of California, Nevada, Arizona, Utah, western Colorado, Wyoming, and Montana. Moderate HeatRisk (orange) extends across much of the Interior West, while Minor HeatRisk (yellow) reaches into the Pacific Northwest, Great Basin, northern Rockies, and central High Plains. Black dots mark locations forecast to experience record or near-record high temperatures, scattered from southern California and Arizona north through Nevada, Utah, Idaho, Montana, Wyoming, and Colorado. NOAA HeatRisk map for Sunday across the western United States. Extreme HeatRisk (purple) remains focused across portions of southern California, southern Nevada, western and central Arizona, western Utah, and parts of western Colorado and central Idaho. Major HeatRisk (red) expands across much of California, Nevada, Arizona, Utah, western Colorado, Wyoming, and eastern Montana, while Moderate HeatRisk (orange) covers surrounding portions of the Great Basin, northern Rockies, and Southwest. Minor HeatRisk (yellow) extends across much of the Pacific Northwest, northern Rockies, central High Plains, and into west Texas. Black dots indicate record or near-record high temperatures, with forecast locations concentrated across California, Arizona, Utah, Colorado, Wyoming, and Montana. Stay indoors during heat waves. Stay indoors in air conditioning whenever possible. If your home doesn't have AC, check if your area has a cooling center. Remain hydrated by drinking water and avoiding alcohol. Check on those most vulnerable to heat, including children and the elderly. If you must go outdoors, go early or late in the day, and dress in light-colored clothing.
July 30, 2026 at 7:05 PM
nws.noaa.gov
Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. Heat Advisories and Extreme Heat Warnings. weather.gov
Tuesday, Oct. 6: NWS HeatRisk forecast for the western U.S. showing widespread Minor heat risk, with Moderate risk across much of California’s Central Valley and southern California. Pockets of Major and Extreme heat risk appear along portions of coastal and southern California, including areas near Los Angeles and San Diego. Wednesday, Oct. 7: NWS HeatRisk forecast showing Minor heat risk across much of the West. Moderate risk remains widespread across California’s Central Valley and southern California, with pockets of Major to Extreme heat risk along parts of the coast and near the California-Arizona border. Thursday, Oct. 8: NWS HeatRisk forecast showing continued Moderate heat risk across large portions of California, including the Central Valley and southern California. Areas of Major and locally Extreme heat risk are concentrated across parts of southern California and the lower Colorado River Valley. Friday, Oct. 9: NWS HeatRisk forecast showing heat impacts beginning to ease. Minor risk covers most of the region, with Moderate risk lingering through portions of California’s Central Valley and southern California. Smaller pockets of Major to Extreme heat risk remain near the California-Arizona border.
October 6, 2026 at 5:40 PM
tomscocca.bsky.social
Get to know the government's new HeatRisk system, just in time for Code Magenta to hit
June 18, 2024 at 3:07 AM
ianlivingston.bsky.social
😢
Tuesday HeatRisk: tldr = death! Wednesday HeatRisk: tldr = more death!
June 19, 2025 at 11:02 AM
altcdc.altgov.info
If you want to know the heat risk in your location, here’s a CDC resource that’s still controlled by scientists that can help you stay safe this summer!
HeatRisk | Tracking | NCEH | CDC
Check the HeatRisk forecast for your area and find out what you can do to stay safe.
ephtracking.cdc.gov
June 18, 2026 at 7:20 PM
altcdc.altgov.info
Check your local heat risk with this “cool” resource:

ephtracking.cdc.gov/Applications...

Find more information here:

www.cdc.gov/climate-heal...
HeatRisk | Tracking | NCEH | CDC
Check the HeatRisk forecast for your area and find out what you can do to stay safe.
ephtracking.cdc.gov
July 27, 2026 at 2:01 PM
nws.noaa.gov
Another dangerously hot day from LA west into AZ across the southern U.S.
Remember: everyone can be at risk from the dangers of extreme heat, but these groups are more vulnerable than most. Ensure that your loved ones and neighbors are safe from the heat and remain weather.gov/safety/heat-during
Heat Impacts on Vulnerable Populations. Everyone is at risk from the dangers of extreme heat, but these groups are more vulnerable than most: pregnant, newborns, children, elderly, chronic illness. Age and certain conditions make the body less able to regulate temperature. Never leave anyone alone in a closed car. Use air conditioners and stay in the shade. Drink plenty of water, even if not thirsty. Wear loose-fitting, light-colored clothing. HeatRisk outlook for today across the southern Plains and Southwest. Major HeatRisk covers much of Texas and parts of Oklahoma, New Mexico, Arizona, Louisiana and Arkansas, with pockets of Extreme HeatRisk across central and north Texas, including near Dallas and Austin. Moderate HeatRisk surrounds these areas, while Minor HeatRisk extends across much of the central and western U.S.
August 25, 2026 at 3:06 PM
nws.noaa.gov
Dangerous to record setting heat will expand across the eastern two-thirds of the nation this week. Be sure to follow your local forecast information from weather.gov and heat.gov
HeatRisk map for the eastern two-thirds of the country. Major to Extreme heat risk expands this week.
June 28, 2026 at 11:32 AM
nws.noaa.gov
Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. weather.gov
A prolonged, dangerous October heat wave across coastal and southern California, with color-coded maps showing max highs into the 90s–110°F and bullet points urging heat safety, hydration, and limited night relief.
October 6, 2026 at 12:24 AM
altcdc.altgov.info
Check your local heat risk with this “cool” resource:

ephtracking.cdc.gov/Applications...

Find more information here:

www.cdc.gov/climate-heal...
HeatRisk | Tracking | NCEH | CDC
Check the HeatRisk forecast for your area and find out what you can do to stay safe.
ephtracking.cdc.gov
July 20, 2026 at 2:01 PM
ianlivingston.bsky.social
My first many-image plot in #python -- project this week. NWS HeatRisk nationally and DC focused. #dcwx #uswx
HeatRisk for the next week from NWS at a national scale. HeatRisk for the next week from NWS at a DC region scale.
May 18, 2024 at 3:09 PM
nws.noaa.gov
Starting this weekend, Major to Extreme HeatRisk will begin spreading into the Midwest, Deep South, and southwestern U.S. As blistering as the daytime highs will be in many areas, record-warm morning lows will heighten the danger for those unable to seek cool shelter.
June 23, 2026 at 8:47 PM
nws.noaa.gov
Parts of the Mid-Atlantic and Southeast will get their first taste of Summer as temperatures creep into the upper 80’s next week!
Max HeatRisk Tuesday-Thursday infographic from the NOAA NWS Weather Prediction Center, issued Friday, April 10, 2026. Region: Southeast and Mid-Atlantic. Dates: Tuesday–Thursday, 4/14–4/16. Heat Index Values: 85-90°F. Safety Advice: Hydrate, limit time outdoors, and take breaks in the shade. NEVER leave kids or pets in the car! Map Details: A map of the Eastern United States displays "Maximum HeatRisk" levels using a color-coded legend: Minor (Yellow): Covers the majority of the Southeast, including Florida, Georgia, and the Deep South. Moderate (Orange): Highlights a broad area across the Mid-Atlantic and coastal Southeast, specifically covering much of North Carolina, Virginia, Maryland, Delaware, and parts of South Carolina and New Jersey. Major (Red) and Extreme (Purple): Not shown on the map for this period.
April 10, 2026 at 7:01 PM
jjrennie.bsky.social
It's so beautiful, I might cry.

I have been waiting SO LONG for this to be national, and now it has!

www.wpc.ncep.noaa.gov/heatrisk
April 22, 2024 at 9:05 PM
nws.noaa.gov
Hurricane #Erin and the #RipCurrent risk along the Atlantic coastline this week. Heavy Rainfall and flood potential for the upper Midwest through Monday. #HeatRisk continues and expands from the Mississippi Valley through Monday then into the Southwest and Intermountain West later this week.
August 17, 2025 at 9:44 PM
nws.noaa.gov
Though relief is on the horizon, HeatRisk will still be in the Major and Extreme category for the next few days for broad swaths of the eastern portions of the nation. If you're not inside in AC, make sure to hydrate well and take frequent breaks in the shade. Heat illness can sneak up on you.
July 29, 2025 at 5:09 PM
nws.noaa.gov
Hot & humid conditions are expected to expand across the southern U.S. this weekend. High temperatures are forecast to be well into the 90s, with triple digit heat possible across portions of TX. Widespread Major to Extreme HeatRisk is forecast.

Stay prepared, check the forecast at weather.gov.
An infographic from the NOAA NWS Weather Prediction Center titled "Hazardous Heat to Develop This Weekend Across the South: Expanding hot and humid conditions this weekend." Issued: Mon Jun 22, 2026 3:03 PM EDT. Left text with icons: Thermometer: High temperatures well into the 90s across the Southeast to Southern Plains; triple digits likely in northern Texas/Texas Panhandle. Warning Sign: Widespread Major HeatRisk for the Southeast and Southern Plains. Extreme HeatRisk likely from Tampa to Jacksonville, eastern North Carolina, and northern Texas (including Dallas). Calendar: Extreme Heat risk persists into the week of June 29th, expanding into the Mid-Atlantic. Safety Note: "The most essential ways to protect yourself are to have a way to cool down, and to stay hydrated. Get out of the sun and give your body a break." Right map: A "Maximum HeatRisk Saturday to Sunday June 27-28" map of the Southern U.S. displays widespread red (Major) and purple (Extreme) risk levels across Tex
June 22, 2026 at 9:30 PM
jjrennie.bsky.social
Welp, my day is ruined.

@NWS probabilistic heat risk just got released today.

Soliciting for Public Comments through September 30, 2026

www.wpc.ncep.noaa.gov/heatrisk/pro...
April 21, 2026 at 6:08 PM
priorplanning.life
Hey, babe. New NOAA heat risk map product just dropped:

www.wpc.ncep.noaa.gov/heatrisk/
NWS HeatRisk
www.wpc.ncep.noaa.gov
July 7, 2024 at 8:22 PM
nws.noaa.gov
Areas highlighted as "Extreme" Heat Risk mean the expectation of rare and/or long-duration extreme heat with no overnight relief affecting *anyone* without cooling/hydration.

Areas highlighted as "Major" Heat Risk means that conditions can affect *anyone* without cooling/hydration.
weather.gov
Shows expected health risk from prolonged heat exposure. Large portions of the Ohio Valley, Mid-Atlantic, Appalachians, Tennessee Valley, Carolinas, Virginia, Maryland, Pennsylvania, New Jersey, and southern New England are under Extreme HeatRisk (purple), indicating dangerous conditions for anyone without effective cooling or hydration. Surrounding areas across the Southeast, Gulf Coast, Midwest, and lower Great Lakes are under Major HeatRisk (red), while areas farther west into the Plains and Upper Midwest are generally Moderate (orange) to Minor (yellow) risk.
July 2, 2026 at 7:04 PM
shawnmilrad.bsky.social
Seems bad. Seems worse when you realize HeatRisk doesn't even incorporate humidity.
June 22, 2025 at 10:50 PM
jjrennie.bsky.social
Parts of Houston, especially west of the city, will experience extreme Heat Risk impacts this upcoming weekend.

www.wpc.ncep.noaa.gov/heatrisk/

@mattlanza.bsky.social @spacecitywx.bsky.social #TXwx
June 3, 2025 at 11:02 PM
penfoldsfiv.eurosky.social
oh god this week is going to suck
a map titled "Maximum NWS HeatRisk" from the National Weather service, showing the eastern half of the United States is going to be hit with a dangerous heat wave.
June 29, 2026 at 2:41 PM