iiinova — where your digital self keeps evolving

Reposted by Philippe Papin

EUMETSAT @eumetsat.int · 13/08/2026

Yesterday, the Moon’s shadow crossed parts of Europe during a total solar eclipse! 🌖 Our satellites captured the event over Earth from 36,000km in space, featuring live imagery during RTBF’s special broadcast. See the full animation & imagery in our Image of the Week: bit.ly/3SrZCi5 🛰️

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Dakota Smith @weatherdak.bsky.social · 11/04/2026

The life and death of twin cyclones in the West Pacific. A fascinating evolution and interaction.

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cira-csu.bsky.social @cira-csu.bsky.social · 23/02/2026

A stunning satellite shot of a powerful nor'easter.

Still satellite imagery of a nor'easter. This image contains the GeoColor product from the GOES-19 weather satellite from the morning of 2026-02-23.

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National Weather Service @nws.noaa.gov · 29/01/2026

Further increases in confidence for an impactful winter storm are noted across the Carolinas with greater uncertainty still farther up the coast.

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National Weather Service @nws.noaa.gov · 23/01/2026

Take this storm seriously. Moderate to major impacts are expected from the Central US through to the Northeast through the weekend. - Hazardous to impossible driving conditions are expected. Avoid travel if at all possible. - Widespread closures and disruption to infrastructure may also occur.

Winter Storm Severity Index. No more important added content to add from what is in the post text.

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Tomer Burg @burgwx.bsky.social · 20/01/2026

I’d be very careful with posting snow maps for the weekend storm this far out. There’s still significant uncertainty with the amplitude & progression of both SW US + north stream troughs, which drives both the event duration & how far north heavy snow expands into the Northeast.

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National Weather Service @nws.noaa.gov · 16/01/2026

The National Weather Service is now hiring for both entry-level and seasoned meteorologist positions. Apply by January 29! The entry-level positions are available in: ▪️ Houston, TX ▪️ Ft. Worth, TX ▪️ Hastings, NE ▪️ Great Falls, MT ▪️ Marquette, MI Apply: www.usajobs.gov/job/854675700

3 by 3 collage of NWS employees around the country

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National Weather Service @nws.noaa.gov · 23/12/2025

Here is the latest update from WPC on the California atmospheric river event where a moderate to high risk of flash flooding is anticipated for southern California on Wednesday Christmas Eve. Please stay safe through the upcoming Christmas holiday. www.wpc.ncep.noaa.gov/key_messages...

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National Weather Service @nws.noaa.gov · 23/12/2025

Unseasonable warmth is forecast across a large portion of the Lower 48 this week. High temps will soar to 30-40 degrees above normal, with some areas as much as 50 degrees above normal. Dozens of daily temp records could be broken. How warm will it be where you live this week? Check weather.gov.

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National Weather Service @nws.noaa.gov · 19/12/2025

Wildfires can spread quickly — by the time one is nearby, you may not have much time. Have an evacuation plan, and prepare an emergency supply kit ahead of time. Listen to local officials for emergency information and any evacuation orders.

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National Weather Service @nws.noaa.gov · 05/12/2025

❄️ D.C.'s first measurable snow of the season covers the capital in a hush of flurries. Winter is making a return with cooler than normal temperatures in the forecast for the next several days. Stay up to date with the latest forecast at weather.gov. Credit: Bob Hyatt, NWS

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cira-csu.bsky.social @cira-csu.bsky.social · 01/12/2025

Persistent fog and low stratus clouds have been plaguing California's Central Valley for the last week.

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Climatologist49 @climatologist49.bsky.social · 01/12/2025

December is the coldest month of the year for most areas from the Rocky Mountains to the Pacific Ocean.

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National Hurricane Center Bot @nhcbot.bsky.social · 30/11/2025

11/30: Today is the last day of the 2025 hurricane season. The month of November has proven to be very quiet this year, with no named storms during the month. There weren't even any disturbances mentioned in the Tropical Weather Outlook the en... x.com/NHC_Atlantic/status/199509624…

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Philippe Papin @pppapin.bsky.social · 28/11/2025

Impressed with the resilience of #Senyar… looks like a coherent circulation may have made it across #Malaysia. Nice radar coverage showing the last 24h revolution as it crossed from the Malacca Strait ➡️ South China Sea. Imagery courtesy of @zoom.earth

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National Weather Service @nws.noaa.gov · 26/11/2025

Is your vehicle ready for the winter? Watch this brief video to know what needs to be in your emergency kit and how to winterize your vehicle. For more winter weather safety tips visit weather.gov/safety.

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National Weather Service @nws.noaa.gov · 25/11/2025

Following the ongoing winter storm across the Upper Midwest, another storm system is forecast to impact parts of the Midwest and Great Lakes with wintry weather this weekend. Keep an eye on the forecast and check weather.gov for more information. ❄️

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National Weather Service @nws.noaa.gov · 26/11/2025

Here are the latest key messages for the current storm impacting the Great Lakes. Keep up to date with the latest forecast at weather.gov and find the latest storm summary here: www.wpc.ncep.noaa.gov/discussions/...

Key Messages for Thanksgiving Week Winter Storm issued on Wed, Nov 26, 2025, 3:25 AM CST.
- A storm will move into the western Great Lakes today, bringing blizzard conditions, strong winds, intense snowfall rates (primarily along the southern shore of Lake Superior), & lake effect snow.
- Snowfall will end over Minnesota later today. Heavy snow with rates of 1-2 in/hr will continue over far northern Wisconsin and especially into the western portions of the Upper Peninsula of Michigan. Lake effect snow will start over Lower Michigan and then downwind of Lakes Erie and Ontario later today and overnight.
- Blizzard conditions will make travel impossible at times across portions of the western Great Lakes this morning and overnight. Lake effect snow of 1-2ft, and locally higher, is forecast downwind of western Lake Superior over northern Wisconsin into the western U.P. of Michigan. Heavy snow and gusty winds will commence downwind of Lake Erie between Cleveland and Buffalo tomorrow.

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Reposted by Philippe Papin

NOAA @noaa.gov · 25/11/2025

JUST IN: The 2025 Atlantic #HurricaneSeason ends on Nov. 30 with 13 named storms, including 5 hurricanes, of which 4 intensified to be major hurricanes. Find our news release, images and wrapup video at: noaa.gov/news-release... @nws.noaa.gov

NOAA’s GOES-19 satellite captured Hurricanes Imelda (left) and Humberto (right) churning off the U.S. east coast on Sept. 30, 2025 (Credit: NOAA).

The Atlantic basin saw 13 named storms in 2024, with four reaching major hurricane status. They were: Andrea, Barry, Chantal, Dexter, Erin, Fernand, Gabrielle, Humberto, Imelda, Jerry, Karen, Lorenzo and Melissa. Tropical cyclone names are selected by the World Meteorological Organization. (Image credit: NOAA)

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Philippe Papin @pppapin.bsky.social · 25/11/2025

The National Hurricane Center has put together a 2025 Verification Preview. Covers a prelim view on seasonal track, intensity, & genesis 🌀forecasts. Also touching on rapid intensification forecasts & Melissa which was the most impactful storm of the year. URL: www.nhc.noaa.gov/pdf/NHC_Veri...

Title & Abstract of the National Hurricane Center Verification Report Preview.

Figure 5 of the Verification Report Preview

Figure 7 of the report comparing NHC intensity forecasts of Michael (2018), Dorian (2019), Otis (2023) vs. Melissa.

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Reposted by Philippe Papin

Clark Evans @clarkevanswx.github.io · 22/11/2025

After many long months, I’m excited to announce: we’re hiring! GSL through CIRES is looking to hire a land-surface model developer. Come join us in developing the next generation of storm-scale NWP for NOAA & community! Closes 12/12, pls contact me w/ questions. jobs.colorado.edu/jobs/JobDeta...

jobs.colorado.edu

CIRES / NOAA Global Systems Laboratory, Land Surface Modeler

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Philippe Papin @pppapin.bsky.social · 24/11/2025

What is poor practice during Hurricane season is also poor practice in Winter Season. Do not share deterministic models forecasts >5-7 days out. Snowfall maps are an especially poor choice of model graphic to share with much lead time. My 2️⃣🪙

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Alan Gerard @wxmanms1.bsky.social · 23/11/2025

A horrific accident early Saturday morning left a car in the side of an NWS office and the office relying on the NWS service backup system. Service backup is important in situations like this - but also is being increasingly used due to NWS staffing and infrastructure issues. tinyurl.com/4txuyhbz

tinyurl.com

Tragic vehicle accident takes an NWS office offline

Looking at how the NWS offices back each other up. Severe weather and flash flooding in the south central US next couple of days.

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Philippe Papin @pppapin.bsky.social · 23/11/2025

Love observing the local effects of terrain on the boundary layer fog in California. For instance, Check out the drainage into the San Luis Reservoir where low level flow is forced to curve anticyclonic into the local saddle point of the Coastal Range. Makes for some photogenic views!

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Philippe Papin @pppapin.bsky.social · 21/11/2025

That’s a lot of intense hurricanes over the past 5 years 😵‍💫 We added 4 more to the list this year, #Erin, #Gabrielle, #Humberto, & #Melissa.

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Reposted by Philippe Papin

NSF NCAR & UCAR @ncar-ucar.bsky.social · 19/11/2025

Hurricane Melissa produced the fastest hurricane winds to be recorded by a dropsonde, verified by reviewing data at NSF NCAR! Hurricane Melissa’s 252 mph wind gust surpassed the previous record from Typhoon Megi over the Western Pacific in 2010, where a dropsonde measured wind gusts of 248 mph.

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Philippe Papin @pppapin.bsky.social · 17/11/2025

Still waiting for @bsky.app to build out functionality with direct messages. Namely, allow users to include images/videos in messages & ability to DM multiple users at once. Twitter's botched update on their platform for DMs should provide motivation to move here, but need similar functionality.⏰

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Philippe Papin @pppapin.bsky.social · 12/11/2025

Seems like the #Aurora is already visible over a large chunk of the CONUS tonight thanks to the #CME's over the last few days from a couple of significant X-class solar flares.

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Philippe Papin @pppapin.bsky.social · 11/11/2025

I love how the wake-free zone of stratocu nicely corresponds to the area of >50F dewpoints advected off the Florida Peninsula & adjacent Gulf coast area. Taking a while for the sfc fluxes to moisten boundary layer enough to reach convective temp. Plot via @burgwx.bsky.social's RTMA analysis. #FLwx

Tomer Burg's RTMA centered over the Southeast. Plotted is dewpoint (shaded, deg F), 10 m wind (barbs), and MSLP (every 2 mb, thin black lines).

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Philippe Papin @pppapin.bsky.social · 11/11/2025

Another way to put it -- in time it took to get 2️⃣ daily record lows at #KMIA, we set new record highs for more than a quarter of days in the calendar year b/w Nov 2014 to Nov 2025 (97/365 ~ 27% of all days). So yes, a remarkable cold snap, but got to put in proper context of record tends. #FLwx

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Philippe Papin @pppapin.bsky.social · 11/11/2025

This cold outbreak was also impressive in how far south it pushed, even to #Miami, FL. The Miami International Airport #KMIA set its first record low (49°F) in more than a decade! Between the last two record lows (11/2/14 to 11/11/25), there have been *97 new record highs* set at the airport. #FLwx

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Andrew D Thaler @drandrewthaler.bsky.social · 11/11/2025

In the century leading up to 1975, nearly 6000 freighters went down in the Great Lakes. The Edmund Fitzgerald was the last. The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes. Why? It's NOAA. Of course it's NOAA.

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Philippe Papin @pppapin.bsky.social · 10/11/2025

Fascinating interaction of #wx scales near Lake Michigan tonight. A Lake Effect Snow #LES band streched N-to-S across the lake, but a potent vortmax dropped in just west, providing large-scale ascent & changing morphology of band into a mesolow, enhancing #snow over #Chicago & Indiana tonight. 🌨️

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Reposted by Philippe Papin

National Weather Service @nws.noaa.gov · 07/11/2025

A strong cold front this weekend will put the "ber" in November as frigid air spills out across the Plains and Mississippi Valley. This winter-like chill will flood across the eastern half of the country early next week, bringing the potential for record cold temperatures to the Gulf by Tuesday.

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Philippe Papin @pppapin.bsky.social · 09/11/2025

A couple of recent examples from WPAC #Typhoons that Google DeepMind has been too intense with. First #Kalmaegi & now #Fung-Wong. Would be nice to look at TC structure DeepMind members depicted to see what went awry. Fung-Wong is intensifying, just much slower than the model forecasted.

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Reposted by Philippe Papin

NSF NCAR & UCAR @ncar-ucar.bsky.social · 03/11/2025

Undergraduate opportunity! 📣 The NSF SOARS program is open for applications! SOARS is an undergrad-grad bridge program focusing on promoting and supporting research, mentoring, and community. Learn more about eligibility and the app process: ucar.wd5.myworkdayjobs.com/en-US/UCAR_C...

ucar.wd5.myworkdayjobs.com

2026 NSF SOARS® First-Year Protege

Job Description Summary: UCAR is excited to announce the application opening of the U.S. National Science Foundation (NSF) Significant Opportunities in Atmospheric Research and Science (SOARS) program...

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Philippe Papin @pppapin.bsky.social · 03/11/2025

Here is a zoomed in radar version of 28 Oct showing #Melissa 's inner core evolution before #Jamaica landfall. Radar evidence some type of fast eyewall replacement cycle, #ERC, occurred. Eye went from 10 n mi to 15 n mi on VDM fixes & more intensification occured after ERC. Horrible for Jamaica 😞

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James Franklin @franklinjamesl.bsky.social · 31/10/2025

Here are updated verifications for 2025, AL/EP combined, EMXI not available. Impressed that NHC is beating everything, including consensus, for intensity, and everything but Google DeepMind (GDMI) for track. Rough year for GFS and the statistical intensity aids. Banner year for GDMI.

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cira-csu.bsky.social @cira-csu.bsky.social · 30/10/2025

The three Category 5 storms of the 2025 Atlantic hurricane season.

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cira-csu.bsky.social @cira-csu.bsky.social · 30/10/2025

A look at the devastating power loss across Jamaica following the historic crossing of Hurricane Melissa, captured by NOAA-21.

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Philippe Papin @pppapin.bsky.social · 30/10/2025

Annotating a long 3+ day loop of #Hurricane #Melissa from Kingston, #Jamaica radar. 2️⃣ periods appear where an eyewall replacement cycle, #ERC, looked underway. In both cases, inner eyewall stayed intact & outer bands merged, resulting in a larger eye & strengthening after. A remarkable evolution 🌀

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Mike Charnick @charnick.bsky.social · 29/10/2025

Incredible Sentinal-2 satellite imagery of #Melissa at peak intensity before landfall. In the cloud-free areas of the eye you can see the physical effect of the surface wind gradient (2nd image): chaotic whitecapped waves near center transition to extreme sea spray/linear streaking near the eyewall!

10 meter resolution imagery of wave gradients in the eye of Melissa

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Tomer Burg @burgwx.bsky.social · 29/10/2025

Given higher than usual confidence of rapid intensification (RI) from analyses of an exceptionally favorable environment & with the aid of newer hurricane models (HAFS) & Google DeepMind, NHC was able to skillfully predict Melissa's RI days in advance.

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Philippe Papin @pppapin.bsky.social · 30/10/2025

Tomer always makes the best visualizations, but this is up there with the best... an incredible overview of #Melissa's remarkable evolution over the past 5 days.

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Philippe Papin @pppapin.bsky.social · 30/10/2025

Re-upping this thread, but like a month ago, #Melissa peaked in what is thought as a less favorable intereseasonal base state: Convective MJO envelope in maritime continent w/ suppression over NATL. Recurring theme - NATL 2025 TC activity occurring out of phase with typical favorable MJO phases. 🤷‍♂️

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National Weather Service @nws.noaa.gov · 29/10/2025

As of 11 AM ET, Hurricane Melissa has moved offshore of northeastern Cuba and is moving toward the Southeastern Bahamas with maximum sustained winds of 100 mph. Melissa will move through the SE Bahamas today and approach Bermuda tomorrow where a Hurricane Warning is now in effect. hurricanes.gov

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Jeremy DeHart @jeremydehartwx.bsky.social · 28/10/2025

I was worried for my crew mates when I saw them circling in the eye for over 20 mins. Looks like the very rough ride was confirmed. Plane had to leave early. They reported svr turb and a "sawtooth" eye. Looks like they moved 600-700ft up & down during this stretch in ~1 min.

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Jeremy DeHart @jeremydehartwx.bsky.social · 27/10/2025

From a crewmember on yesterday's Teal 74 mission into now-Category 5 Hurricane #Melissa. As clear of an eye as you will see in the Atlantic basin.

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Chris ☈ozoff @agitatedcu.bsky.social · 28/10/2025

This has probably already been posted here, but Melissa has displayed a classic mesovortex pattern that can be modeled in the simplest 2D atmospheric models ("nondivergent barotropic models"). Here's a comparison of this morning's VIS sat and Kossin and Schubert (2001) experiments.

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Philippe Papin @pppapin.bsky.social · 28/10/2025

#Melissa's landfall intensity of 185 mph/892 mb ties it with the Florida Key's Labor Day Hurricane of 1935 as the record minimum pressure of any TC making landfall *anywhere* the NATL basin. I feel for the residents of #Jamaica 😞 Zoomed in G19 visible meso loop courtesy of @cyclonicwx.bsky.social

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