Latest news with #ExtremeHeatWarning
CBS News
5 days ago
- Climate
- CBS News
Extreme heat warning in western Pennsylvania prompts First Alert Weather Day
In case you've lost count, today is going to be the third 90-degree day in a row for Pittsburgh. The extreme heat will be in place through the weekend. Now, our highs will likely dip closer to 90 degrees starting Wednesday, but morning lows will remain elevated and warm enough that they won't allow those without air conditioning units to fully recover from the day-to-day rigors of hot weather being in place. Cool showers are one of the best ways to help your body cool down if faced with relentless heat. KDKA-TV The reason for the heat is a powerful ridge of high pressure that is right on top of us right now. This ridge will begin to drift to the south over the next 24 hours, putting us on the edge of the ridge, or what they call the "ring of fire." It sounds ominous. In some ways, it is as the "fire" part of the phrase references storms that develop during the afternoon on the periphery of the ridge each and every day. The edge today is just north of I-80, and that's where there is a small severe weather chance today. The edge moves on top of our region on Wednesday. This means temperatures will likely quickly warm up to the 90s, but then with storm development, will likely remain at or below 90 degrees behind any early afternoon storms. This pattern will be in place from Wednesday through Saturday, and will likely be enough that we will not see an extension of the Extreme Heat Warning now in place through Wednesday. Getting back to your forecast, highs today will hit the mid-90s with light westerly winds. You should see plenty of sunshine today. While there is an isolated rain chance for today, rain chances will be higher the rest of this week. I have noon temperatures already in the 90s. Humidity levels will also be extreme with dew points near 70 degrees all day long. The best rain chance today comes just before midnight. Wednesday is going to be an interesting day as storm chances will cut into the heat during the afternoon. This will bring brief relief from the heat and should keep our highs closer to 90 degrees than 95 degrees. Rain will be spotty, but those who see it will see downpours that could potentially lead to flash flooding. I have Wednesday's rain chance higher than the rest of the week, but rain chances will remain on Thursday, Friday and Saturday. I bring rain chances down on Sunday to isolated areas. Temperatures will remain near 90 degrees all the way through at least next Monday, with morning lows also remaining above 70 degrees through then as well.
Yahoo
7 days ago
- Climate
- Yahoo
What is an Extreme Heat Warning and when is it issued in Pennsylvania?
(WHTM) — Much of the Midstate is under an Extreme Heat Warning, a first for the region. Sort of. The National Weather Service at State College issued two separate Extreme Heat Warnings covering most of our area — one for Mifflin and Juniata counties, and another for Franklin, Perry, Dauphin, Lebanon, Cumberland, Adams, York, and Lancaster counties. What is a heat dome? Here's what forecasters are talking about The former is in effect from 10 a.m. to 8 p.m. Monday, and the latter is until 8 p.m. Wednesday with heat index values up to 108°F predicted It's not the first time we've reached such temperatures, but it is a new term for the warning. Why? It's part of what the NWS calls 'hazard simplification' which saw two alerts renamed nationwide in March. WEATHER FORECAST > A hazy, hot, and humid week ahead Effectively, if these conditions existed this time last year, we would be under an 'Excessive Heat Warning.' The change of wording from 'Excessive' to 'Extreme,' the National Weather Service says, is part of an effort to 'better convey that heat is dangerous' and improve communication and messaging. For an Extreme Heat Warning to be issued in all of Pennsylvania outside of metro Philadelphia, heat indexes must exceed 105°F. Metro Philadelphia uses 'Kalkstein Procedures.' A Heat Advisory, which Mifflin and Juniata counties will be under until 8 p.m. Wednesday outside of when the Extreme Heat Warning is active, requires heat indices between 100°F and 105°F. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Newsweek
30-05-2025
- Climate
- Newsweek
Map Shows 6 States Where People Told To Stay Out of Sun
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. An extreme heat wave prompted the National Weather Service (NWS) to issue advisories affecting millions of people across at least five U.S. states—California, Nevada, Montana, Oregon, Arizona and Idaho—with officials warning residents to stay indoors and avoid sun exposure as temperatures soar above 100 degrees Fahrenheit. Why It Matters Heat advisories and extreme heat warnings issued by the NWS could impact public health and critical infrastructure in affected regions. High temperatures—combined with little overnight relief—raised the risk of heat exhaustion, heatstroke and wildfires. Vulnerable groups, including children, older adults and those working or living without air conditioning, face heightened danger. What To Know The NWS Heat Advisory and Extreme Heat Warning maps confirmed warnings for broad portions of California and parts of Nevada. Although these areas often see temperatures in the triple digits during the summer, this is one of the first heat waves of the season and some people might be unprepared. In California, dangerous heat was forecast for the Sacramento Valley, Central Valley and inland counties, with the NWS Sacramento office projecting temperatures up to 107. Central California cities—including Merced, Bakersfield and Tulare—faced highs of 106, while the southern valleys and mountainous zones were expected to see heat reaching the low 100s. The sun rises in California. The sun rises in California. johnemac72/Getty Southern Nevada—including Las Vegas, Pahrump and Death Valley—was placed under an Extreme Heat Watch, with highs between 104 and 115, according to the NWS Las Vegas office. Extreme heat warnings also stretched into northwest Arizona. The heat wave spread to Oregon, Idaho and Montana, sparking warnings in the northern states. Along with staying out of the sun, people were advised to wear lightweight clothing and stay hydrated. Authorities cautioned that the risk of heat-related illness—dizziness, nausea, heavy sweating—would be elevated, especially during afternoon and early evening hours. In addition, NWS officials warned about leaving pets and children unattended in vehicles and noted the increased risk of wildfires because of low humidity and winds. Hospitals and emergency services in California and Nevada anticipated a possible surge in heat-related medical cases. Michelle Shahbon, emergency room manager at Shasta Regional Medical Center, previously told Newsweek that their team expected an uptick in patients and advised residents to stay hydrated and limit outdoor exposure during peak sunlight hours. What People Are Saying NWS meteorologist Brian Conlan, who works at the Missoula, Montana, office, told Newsweek: "While this is probably abnormal for us, many locations are going to be 15, 20, and in some places 25 degrees above normal, it has happened before. Most of the areas that may see their records broken, those records were set in '86." An NWS forecast issued on Friday: " ... record high temperatures will be threatened across interior northern California today, expanding into the Great Basin, Idaho, and as far north as western Montana on Saturday. The anticipated heat in the Southwest for the next couple of days has led to the issuance of Extreme Heat Warnings for the dangerous heat for portions of southernmost Nevada, southeast California, and northwestern most Arizona." What Happens Next The heat wave is expected to last through the weekend and it's likely that updates will continue to be issued by the NWS. It's possible that the heat wave could break records in some areas and is coming earlier than expected in some states.
Yahoo
11-03-2025
- Climate
- Yahoo
Why you'll no longer see ‘excessive heat warnings' in the forecast
(NEXSTAR) — It may be hard to think about sweltering temperatures in early March but the National Weather Service is already rolling out changes to the weather alerts used to alert us to the dangers of impending heat. You may be familiar with 'Excessive Heat Watches' and 'Excessive Heat Warnings,' issued when potentially dangerous heat conditions are in the forecast. Starting this month, those alerts will be no more — sort of. Like it did with wind chill alerts in fall, the National Weather Service is adjusting the names of its heat watch and warning alert. Instead, dangerous heat conditions will trigger an 'Extreme Heat Watch' or an 'Extreme Heat Warning.' Why you'll no longer see 'Wind Chill Warnings' this winter The guidelines are the same as when they were considered 'Excessive' alerts. An Extreme Heat Watch can be issued when 'conditions are favorable for an extreme heat event but its occurrence and timing is still uncertain.' Guidance from the National Weather Service encourages rescheduling outdoor events and ensuring the most vulnerable — children, the elderly, and pets — have a place to stay cool when watches like this are issued. When 'extremely dangerous heat conditions are expected or occurring,' an Extreme Heat Warning is issued. You may be encouraged to avoid outdoor activities, remain hydrated, and stay in air-conditioned spaces as much as possible. Renaming the heat watch and warning is part of NWS's Hazard Simplification Project, which is intended to 'better convey that heat is dangerous.' A total lunar eclipse and blood moon will be visible in March: How and when to watch Another heat-related alert, the Heat Advisory, will not be renamed. These are issued when dangerous heat conditions are likely but not severe enough to trigger a watch or warning. The specific conditions that prompt any heat alert vary by area. The National Weather Service points to Florida, where residents are better prepared for 90-degree heat than in, say, Alaska. In Wisconsin, for example, daytime heat index values between 100 and 104, or heat indices between 95 and 99 for four consecutive days, can activate a heat advisory from the local National Weather Service office. An extreme heat warning can be activated if the daytime heat index will be 105 or higher or 75 or higher at night for at least 48 hours. The NWS also provides a HeatRisk tool, a five-point scale that ranks the risk of heat-related impacts nationwide. It takes into account how unusual the high temperatures are for the time of year, how long the heat will last through the day and night, and if the temperatures 'pose an elevated risk of heat-related impacts' according to data from the Centers for Disease Control and Prevention. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
The Hill
11-03-2025
- Climate
- The Hill
Why ‘excessive heat warnings' won't be part of the forecast
(NEXSTAR) — It may be hard to think about sweltering temperatures in early March, but the National Weather Service (NWS) is already rolling out changes to the weather alerts used to inform the public of the dangers of impending heat. Americans may be familiar with 'Excessive Heat Watches' and 'Excessive Heat Warnings,' issued when potentially dangerous heat conditions are in the forecast. Starting this month, those alerts will be no more — sort of. Like it did with wind chill alerts in fall, the NWS is adjusting the names of its heat watch and warning alert. Instead, dangerous heat conditions will trigger an 'Extreme Heat Watch' or an 'Extreme Heat Warning.' Why you'll no longer see 'Wind Chill Warnings' this winter The guidelines are the same as when they were considered 'Excessive' alerts. An Extreme Heat Watch can be issued when 'conditions are favorable for an extreme heat event but its occurrence and timing is still uncertain.' Guidance from the NWS encourages rescheduling outdoor events and ensuring the most vulnerable — children, the elderly, and pets — have a place to stay cool when watches like this are issued. When 'extremely dangerous heat conditions are expected or occurring,' an Extreme Heat Warning is issued. You may be encouraged to avoid outdoor activities, remain hydrated, and stay in air-conditioned spaces as much as possible. Renaming the heat watch and warning is part of NWS's Hazard Simplification Project, which is intended to 'better convey that heat is dangerous.' A total lunar eclipse and blood moon will be visible in March: How and when to watch Another heat-related alert, the Heat Advisory, will not be renamed. These are issued when dangerous heat conditions are likely but not severe enough to trigger a watch or warning. The specific conditions that prompt any heat alert vary by area. The NWS points to Florida, where residents are better prepared for 90-degree heat than in, say, Alaska. In Wisconsin, for example, daytime heat index values between 100 and 104, or heat indices between 95 and 99 for four consecutive days, can activate a heat advisory from the local NWS office. An extreme heat warning can be activated if the daytime heat index will be 105 or higher or 75 or higher at night for at least 48 hours. The NWS also provides a HeatRisk tool, a five-point scale that ranks the risk of heat-related impacts nationwide. It takes into account how unusual the high temperatures are for the time of year, how long the heat will last through the day and night, and if the temperatures 'pose an elevated risk of heat-related impacts' according to data from the Centers for Disease Control and Prevention.
