@aa_ocean

Oceanographer | Graduate of Old Dominion University | Living in an environment that we should all take better care of.

 Virginia
facebook.com/Andrew.Allegra
Joined March 2010
  • Tweets2K
  • Following609
  • Followers150
356Media
Andrew Allegra retweeted
Ben Noll
@BenNollWeather22 Jan 2025
Here's a snow map for the history books. The Jan. 21-22, 2025 Gulf Coast blizzard produced 8 inches of snow or more in six states: Louisiana, Mississippi, Alabama, Florida, Georgia, and North Carolina. There was a storm maximum of around a foot near New Orleans.
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Stay safe all summer long with NWS Director Ken Graham’s top tips for heat safety 1. Get into a cool area 2. Stay hydrated 3. Check in on others Go to weather.gov/heat for more tips!

Ken Graham Heat Safety Tips

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI15 Feb 2024
Measurements of ocean variables help scientists understand the health and status of our changing ocean. Learn more how the World Ocean Atlas 2023 utilizes these measurements: bit.ly/WOA23Release #NCEIOcean
Above shot of waves crashing onto the beach during a sunny day.

ALT Above shot of waves crashing onto the beach during a sunny day.

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As 2023 comes to a close, we want to take a look back at some of the climate related topics, maps, and graphs that we brought you all over the last year. Read more about climate.gov's highlights of 2023: climate.gov/news-features/fe…
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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI20 Nov 2023
Psst! Save our punny climate map for when there’s an awkward silence at the Thanksgiving dinner and you need to pretend to be busy on your phone. 📱 If your city didn’t make it on the map, look it up here: bit.ly/USNormals #Thanksgiving #ClimateNormals #NOAA
A map of the United States highlighting cities with Thanksgiving-esque names and the average temperature highs and lows associated with them.

ALT A map of the United States highlighting cities with Thanksgiving-esque names and the average temperature highs and lows associated with them.

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September was so much warmer than average that we had to add a new notch to our graph template! climate.gov/news-features/un… #NOAA #climate
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#ICYMI Our latest ENSO blog dives into how this year's robust El Niño could impact winter weather and climate across North America. climate.gov/news-features/bl…
Two global maps of North America that show the typical weather conditions during El Nino and La Nina winters.

ALT Two global maps of North America that show the typical weather conditions during El Nino and La Nina winters.

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI26 Sep 2023
A State Climate Extremes Committee said “Hail yes!” to a new state hail diameter record set near Kirk, CO on Aug 8, 2023. Besides its impressive 5.25” in diameter, the stone raised questions too. @NWS @NWSGoodland @IBHS_org @ColoradoClimate pulse.ly/mhf08o3gb8
Photo of large hailstone roughly 5.25” in diameter measured via calipers from storm chaser Dan Fitts.

ALT Photo of large hailstone roughly 5.25” in diameter measured via calipers from storm chaser Dan Fitts.

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More than 90 percent of the warming that has happened on Earth over the past 50 years has occurred in the ocean. Not all of that heating is detectable yet at the surface: climate.gov/news-features/un…
Annual ocean heat content compared to the 1993 average from 1993-2019, based on multiple data sets: surface to depths of 700 meters (2,300 feet) in shades of red, orange, and yellow; from 700-2,000 meters (6,650 feet) in shades of green and blue; and below 6,650 feet (2,000 meters) as a gray wedge.

ALT Annual ocean heat content compared to the 1993 average from 1993-2019, based on multiple data sets: surface to depths of 700 meters (2,300 feet) in shades of red, orange, and yellow; from 700-2,000 meters (6,650 feet) in shades of green and blue; and below 6,650 feet (2,000 meters) as a gray wedge.

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5 am AST - Hurricane #Lee is a powerful category 5 hurricane. Here are the Key Messages. Visit hurricanes.gov for details.
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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI15 Aug 2023
⚠️ The warmest July on record for the globe: bit.ly/Global202307 #StateOfClimate
Map of the world showing land/ocean temperature percentiles for July 2023 with warmer areas in gradients of red and cooler areas in gradients of blue.

ALT Map of the world showing land/ocean temperature percentiles for July 2023 with warmer areas in gradients of red and cooler areas in gradients of blue.

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Many of Florida's #CoralReefs have been hit with severe bleaching and significant mortality due to extremely warm ocean temperatures, and @NOAA's @CoralReefWatch has been tracking the threat. In this Bleaching Alert animation, you can see how the threat has grown over the last two weeks. More: bit.ly/3rsJ1wM
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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI17 Jul 2023
El Niño is here! ENSO can influence and disrupt weather, ocean, and climate patterns all over the globe. Learn more about ENSO and how NCEI data and products help detect and monitor different ENSO phases and their impacts: bit.ly/NCEIENSOData @NWSCPC @NOAAClimate
A bright red/orange band of unusually warm sea surface temperatures extends along the equatorial Pacific Ocean overlaid on a global map during 2016, one of the strongest El Niño events on record.

ALT A bright red/orange band of unusually warm sea surface temperatures extends along the equatorial Pacific Ocean overlaid on a global map during 2016, one of the strongest El Niño events on record.

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Happy 48th birthday to #JAWS, directed by #StevenSpielberg, which first surfaced on US cinema screens #OTD in 1975. This #film, swallow you whole. Discover more: thedailyjaws.com/jaws
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Andrew Allegra retweeted
NOAA
@NOAA5 Jun 2023
Just in: Atmospheric carbon dioxide levels jump again. Annual increase in Keeling Curve peak is one of the largest on record. Get the details: noaa.gov/news-release/broken… @NOAAResearch
Air intake tube for NOAA's Picarro analyzer, which was installed on the deck of the Maunakea Observatories building on December 8, 2022. (Image credit: NOAA)

ALT Air intake tube for NOAA's Picarro analyzer, which was installed on the deck of the Maunakea Observatories building on December 8, 2022. (Image credit: NOAA)

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI2 Jun 2023
#ClimateCloseout: New Jersey New Jersey's climate is characterized by moderately cold winters & humid summers. However, temps have risen more than 3.5°F since the beginning of the 20th century. Historically unprecedented warming is expected this century. statesummaries.ncics.org/cha…
Graph of Observed and Projected Temperature Change in New Jersey from 1900 to 2100.

ALT Graph of Observed and Projected Temperature Change in New Jersey from 1900 to 2100.

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI1 Jun 2023
A quarter of the ocean’s fish depend on coral reefs for survival, and 70% of all coral reefs worldwide were damaged between 2014 to 2017. Yikes, those aren’t great numbers. 😬 This #WorldReefAwarenessDay, learn why reefs are worth protecting: bit.ly/AllAboutReefs @NOAA
An assortment of glowing, vibrantly colored corals on jagged underwater rock.

ALT An assortment of glowing, vibrantly colored corals on jagged underwater rock.

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI26 May 2023
If you’re heading to the beach this weekend, check out our Coastal Water Temperature Guide before you go. Find out if it’s warm enough for the kids to swim: bit.ly/CWTG22 #KnowBeforeYouGo #MemorialDay
A beach sunrise with birds flying over.

ALT A beach sunrise with birds flying over.

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI25 May 2023
The @NOAA seasonal hurricane outlook was released today! Check it out, but remember it only takes one storm. Prepare by learning about U.S. hurricane strikes from our newly updated poster, now including storms from 1950–2022. bit.ly/2022HurricaneStrikesP… @NHC_Atlantic
Continental United States Hurricane Strikes poster with storm strikes from 1950–2022; The poster has a block of text on the left about Hurricanes Ian and Nicole, the center has two high-definition satellite images of Ian and Nicole, and the right shows a map of the continental U.S. with all the hurricane strikes dating back to 1950.

ALT Continental United States Hurricane Strikes poster with storm strikes from 1950–2022; The poster has a block of text on the left about Hurricanes Ian and Nicole, the center has two high-definition satellite images of Ian and Nicole, and the right shows a map of the continental U.S. with all the hurricane strikes dating back to 1950.

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Andrew Allegra retweeted
NOAA NCEI@NOAANCEI15 May 2023
“Favorite part of my job is that many users rely on our data products, and we are able to provide accurate and on-time data products.” -Boyin Huang, oceanographer. Learn more during Asian American and Pacific Islander Heritage Month: bit.ly/BoyinHuang #AAPIHeritageMonth
NOAA Scientist Boyin Huang poses with a group of NCEI scientists attending an ocean science conference.

ALT NOAA Scientist Boyin Huang poses with a group of NCEI scientists attending an ocean science conference.

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