
Heat advisory for millions as 'dangerous' temperatures kick off summer
Heat advisory for millions as 'dangerous' temperatures kick off summer
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Heat expected for Northeast next week
Hot weather is headed for the Northeast this weekend and is expected to continue through next week.
Millions and millions of Americans are being warned of "dangerous" heat in more than a dozen states as the summer 2025 season officially kicks off.
In parts of the Midwest and Mid-Atlantic regions more than 42 million were under extreme heat watches the morning of June 20, according to the National Weather Service. More than 37 million Americans were under heat advisories across much of the central part of the United States. Over 20 million are under extreme heat warnings.
The weather service says an extreme heat watch means residents should be prepared because conditions are favorable for an extreme heat event sometime soon. Those under a heat advisory or extreme heat warning should take action, according to the weather service. A heat advisory means there are dangerous heat conditions, while an extreme heat warning means extremely dangerous heat conditions are expected or already ongoing. You should avoid outdoor activities, drink plenty of water, take breaks in the shade and stay inside in air conditioning as much as possible.
High temperatures on June 20 are expected to range from triple digits in parts of Kansas, Nebraska and North Dakota to the low to mid-90s in the southeast and the high 80s in the Midwest and Mid-Atlantic. In some parts of the upper Midwest and Northern and Central Plains, record high minimum temperatures could be reached overnight, the weather service said.
Killer heat: How to stay safe as summer 2025 begins

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CBS News
an hour ago
- CBS News
Here's how hot June got in Metro Detroit during previous heat waves
Record high or near-record high temperatures could be seen in Detroit on Sunday and Monday, according to CBS Detroit NEXT Weather forecaster Stacey DuFord. The forecast calls for highs well into the 90s, with a heat index at or above 100 degrees, on those days. There will be only minimal cooling off at night. In preparation, the National Weather Service has issued an extreme heat watch for all of southern lower Michigan from Saturday morning through Tuesday evening. Ahead of the heat wave, DuFord reviewed the record temperatures for Southeast Michigan for June 22-24 and provided the following data. In some cases, June 1988 set the current records; in other cases, the records were set in June 1923. June 22 The temperatures to use as comparison for Sunday are as follows. The record highs for June 22 Detroit: 98 Degrees (Set in 1988) Flint: 96 Degrees (Set in 1923) Saginaw: 94 Degrees (Set in 1966) The record high minimums for June 22 Detroit: 73 Degrees (Set in 1988) Flint: 71 Degrees (Set in 1988) Saginaw: 69 Degrees (Set in 2024) June 23 The temperatures to use as comparison for Monday are as follows. The record highs for June 23 Detroit: 95 Degrees (Set in 1923) Flint: 98 Degrees (Set in 1923) Saginaw: 96 Degrees (Set in 1923) The record high minimums for June 23 Detroit: 74 Degrees (Set in 1923) Flint: 71 Degrees (Set in 2013) Saginaw: 72 Degrees (Set in 1975) June 24 The temperatures to use as comparison for Tuesday are as follows: The record highs for June 24 Detroit: 97 Degrees (Set in 1952) Flint: 95 Degrees (Set in 1934) Saginaw: 96 Degrees (Set in 1938) The record high minimums for June 24 Detroit: 74 Degrees (Set in 1923) Flint: 73 Degrees (Set in 1997) Saginaw: 73 Degrees (Set in 1997) contributed to this report.


Newsweek
an hour ago
- Newsweek
'Incredible' Lightning Rainbow Strikes Florida
Based on facts, either observed and verified firsthand by the reporter, or reported and verified from knowledgeable sources. Newsweek AI is in beta. Translations may contain inaccuracies—please refer to the original content. Striking images and video shared on social media captured the dramatic sight of lightning and rainbows lighting up the Florida sky. The Context The southwest Florida coast was forecast to see multiple rounds of slow-moving showers and thunderstorms by the National Weather Service (NWS) on Thursday. The agency warned that several inches of rainfall was possible, potentially leading to flash flooding in urban areas. A photo posted to social media captures the striking moment when lightning bolts flashed beneath a rainbow-streaked sky. A photo posted to social media captures the striking moment when lightning bolts flashed beneath a rainbow-streaked sky. Matt Devitt/X What To Know The images were posted Thursday by WINK News chief meteorologist Matt Devitt on X, formerly Twitter. "WOW! Incredible lightning and double rainbow combo this evening in Southwest Florida," Devitt said of the first image. "Amazing rainbow and lightning combo illuminating the sky this evening in Port Charlotte, Florida," read his post accompanying the second. Amazing rainbow and lightning combo illuminating the sky this evening in Port Charlotte, Florida! Credit: @WINKNews viewer Katie Johnson @spann @stormhour — Matt Devitt (@MattDevittWX) June 20, 2025 The NWS said it issued a flood advisory for the Naples metropolitan area after heavy rainfall developed. The service said this followed between 2 and 4 inches of rain. On Friday, the NWS forecast office in Miami said that more showers and thunderstorms were expected in the afternoon, primarily across interior and western South Florida. Much of the region would be hot and humid, with highs in the low 90s, it said. What People Are Saying NWS Miami, Thursday on X: "A pinned gulf breeze combined with ample atmospheric moisture will result in the potential of heavy rainfall & localized flooding along the Gulf coast of South Florida as slow moving showers and storms develop. Lightning & gusty winds are also possible with storms! "Over the last several weeks, the focus of afternoon showers and storms has been across southwestern Florida while mainly dry conditions have continued along the east coast metro. Why? Slightly stronger easterly flow thanks to the persistent influence of the Bermuda High." Meteorologist Matt Devitt, Thursday on X: "Classic, rainy season day in Southwest Florida with big rainfall amounts. 2 - 5" for many communities, leading to street flooding. More storms Friday too!" What Happens Next Elsewhere in the U.S., a heat wave is expected to bake swaths of the country from the Midwest to the East Coast starting Friday, with about one-third of the country set to contend with challenging temperatures, according to forecasters at AccuWeather. Meteorologist Adam Douty told Newsweek that this stretch of heat will intensify over the Plains and Midwest through the weekend, shifting to the East by early next week. While temperatures are expected to ease in the middle or late next week, highs will still stay above normal in many regions, he said.


Indianapolis Star
2 hours ago
- Indianapolis Star
Days-long extreme heat advisory issued for Indianapolis. NWS warns of triple digit heat wave
A heat wave set to hit Indianapolis beginning June 21 will last for about a week, according to the National Weather Service's latest forecast. The summer solstice on June 20 welcomes the season with a breezy, sunny 86 degrees. That's temperate in comparison to the days to come: heat indices from June 21 to June 23 will spike as high as 102 degrees in Indianapolis. A heat advisory has been issued for every day between June 21 and June 24. An extreme heat watch is in effect for parts of northern Indiana, including Logansport and Marion. There will be "little overnight relief" from humidity, the NWS warns. The hot spell isn't expected to break until rainfall comes into the area, but that might not happen until late next week, according to NWS meteorologist Alexander McGinnis. "As you get toward the end of the week, it's not quite as hot or quite as humid, but (the forecast shows) no significant improvement in the heat or humidity at this time," McGinnis said. At 8 a.m. on June 20, AES reported that 13,000 customers remained without power after June 18 storms. Going without air conditioning during the extreme heat can be dangerous, and Indy Parks and public libraries will be open to those seeking relief from the heat. More: No AC? Here's where to stay cool or swim in Indianapolis amid heat wave Heat index values peaking in the low 100s are expected each day from Saturday through Tuesday. A heat advisory is in effect for these days. Exercise caution during this time and know the signs of heat illness - which can develop rapidly! #INwx #HeatSafety ☀️ Friday: Patchy fog before 8 a.m. Otherwise, mostly sunny, with a high near 86 degrees. Light southwest wind becoming west southwest 5 to 10 mph in the morning. 🌙 Friday night: Mostly clear, with a low around 70 degrees. South wind around 9 mph. ☀️ Saturday: Sunny and hot, with a high near 93 degrees. Heat index values as high as 101 degrees. South and southwest wind 8 to 14 mph, with gusts as high as 24 mph. 🌙 Saturday night: Mostly clear, with a low around 75 degrees. South and southwest wind 8 to 10 mph, with gusts as high as 20 mph. ☀️ Sunday: Sunny and hot, with a high near 94 degrees. Southwest wind 7 to 11 mph, with gusts as high as 18 mph. 🌙 Sunday night: Mostly clear, with a low around 74 degrees. South southwest wind 6 to 9 mph. ☀️ Monday: Sunny and hot, with a high near 94 degrees. Southwest wind 5 to 8 mph. 🌙 Monday night: Mostly clear, with a low around 74 degrees. Southwest wind 3 to 6 mph. ☀️/⛈️ Tuesday: A 20% chance of showers and thunderstorms after 2 p.m. Sunny and hot, with a high near 93 degrees. Calm wind becoming southwest around 6 mph in the afternoon. 🌙/⛈️ Tuesday night: A 20% chance of showers and thunderstorms. Partly cloudy, with a low around 74 degrees. Southwest wind around 5 mph, becoming calm in the evening. ☀️/⛈️ Wednesday: A 30% chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93 degrees. 🌙/⛈️ Wednesday night: A 30% chance of showers and thunderstorms. Partly cloudy, with a low around 74 degrees. ☀️/⛈️ Thursday: A 30% chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91 degrees. Older Hoosiers and young children are at the greatest risk during extreme heat events. To stay safe and prepared, here's what the experts suggest: The American Red Cross The National Weather Service Centers for Disease Control and Prevention The three main heat-related illnesses to look out for are heat cramps, heat exhaustion and heat stroke. If any of the following symptoms are evident on you or another person: move to a cooler area, loosen clothing and sip cool water. Seek a medical professional if any of the symptoms don't improve within an hour. Heat cramps may be the first sign of illness that could lead to more serious symptoms. Cramps show up as painful muscle cramps or spasms along with heavy sweating, according to NWS. Use firm pressure on the cramping muscles and massage them gently. Heat exhaustion will show up as heavy sweating, weakness or tiredness with cool and clammy skin. The person's pulse may be quick but weak and they may exhibit dizziness or nausea. Immediately move the person to an air-conditioned room, loosen clothing and apply cool, wet cloth to the skin. Heat stroke needs immediate medical attention, so call 9-1-1 or get the patient to a hospital. Heat stroke can appear as throbbing headaches, confusion, nausea, dizziness, body temperatures above 103 degrees. The patient's skin can also appear red with a lack of sweat. This is a serious illness and delays in medical care can be fatal. 🚨 Indiana Weather Alerts: Warnings, Watches and Advisories. ⚡ Indiana power outage map: How to check your status. 💻 Internet outages: How to track them. 🚫 What you should and shouldn't do when the power is out. 🐶 Your neighbor left their pet outside. Who you should call. Ryan Murphy is the communities reporter for IndyStar. She can be reached at rhmurphy@ Karl Schneider is an IndyStar environment reporter. You can reach him at Follow him on Twitter @karlstartswithk