Latest news with #ExcessiveHeat
Yahoo
10 hours 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 This material may not be published, broadcast, rewritten, or redistributed.
Yahoo
04-03-2025
- Climate
- Yahoo
Here's why ‘Excessive Heat Warnings' are going away
KXAN (AUSTIN) — As part of the National Weather Service's 'Hazard Simplification Program,' Excessive Heat Watches and Excessive Heat Warnings will be undergoing a name change starting March 4, 2025. Going forward the word 'Excessive' will be replaced by the word 'Extreme' in these warnings. The National Weather Service said the change will 'align our terminology with the Extreme Cold Watch and Warning products' and provide more consistency among weather partners. Just last year, the National Weather Service consolidated a number of its winter weather and freezing temperature-related products to simplify and consolidate the verbiage surrounding freezing cold and removed references to 'Wind Chill' in those warnings. Frozen out! The NWS won't issue these winter alerts anymore If you remember, those new winter weather alerts became Cold Weather Advisory and Extreme Cold Warning. They also removed the 'Hard Freeze Watch' and 'Hard Freeze Warning' and consolidated down to just 'Freeze Watch' and 'Freeze Warning.' The changing of the words 'Excessive Heat' to 'Extreme Heat' creates a more consistent language in these heat-related warnings. The alert 'Heat Advisory' will remain unchanged and will be the warm-weather equivalent of Cold Weather Advisory. In Central Texas, we have specific criteria that prompt issuing either a Heat Advisory or the new Extreme Heat Warning. Heat Advisories are issued either when air temperatures are expected to climb to or above 103° or heat index values are expected to climb to or above 108° Extreme Heat Warnings are issued when air temperatures are expected to climb to or above 105° or heat index values are expected to climb to or above 113°. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
