The sun is bringing the beauty both night and day this week with overnight Aurora's followed by a spectacular sunrise with morning's first light splashing on the underside of a cloud deck over Colorado.

Breaking up your feed to post aurora pictures from tonight across north central Colorado!

Yearly pre-winter reminder… Record cold and snow in one area/region does not dismiss or invalidate the reality of long-term climate change. www.climate.gov/news-feature...

Bands of intense lake effect snow are expected tonight into Monday near many of the Great Lakes areas highlighted in this image. Dangerous to impossible travel conditions are possible, including during the Monday Morning commutes for some. Get details for your area at weather.gov

Continuing to try to modernize some graphics for the NWS! But also good thing to check on winterizing your home before the end of the weekend/early next week cold snap!

#Melissa makes landfall in southwestern Jamaica near New Hope as a powerful category 5 hurricane. For the latest updates visit hurricanes.gov

Hearing atmospheric river? Want to know what all that is about? Watch this video!

A severe storm threat is in place for more than 45 million people from northeast Texas to the Ohio River Valley on Saturday. 💨 Damaging winds 🌪️ A few tornadoes & 🧊 Hail are all possible There is time today to make sure you are prepared. Visit weather.gov/safety for more.

Take a look at those graphics! 😍 I’m definitely biased 😝. But for real, good information about the winter outlook here!

Really great article by a great former colleague @tdiliberto.bsky.social on what a weak La Niña could mean as far as snowfall goes this year, and the long term winter snowfall trend across the U.S.: www.climate.gov/news-feature...

Tropical Storm Priscilla will bring significant heavy rainfall to the Southwest over the next few days. Remember it doesn’t take much water to sweep a human or even a car away. Be smart and avoid the danger that flash flooding can bring.

While La Niña is currently expected to remain weak, it could still influence the 2025-26 winter season. See what a typical winter La Niña pattern looks like across the U.S. For more information visit cpc.ncep.noaa.gov. (3/3)

La Niña conditions are expected to continue through the December 2025 to February 2026 timeframe. A transition to ENSO-neutral conditions, meaning neither El Niño nor La Niña conditions, is most likely in the January 2026 to March 2026 timeframe. (2/3)

A La Niña Advisory has been issued, meaning that La Niña conditions have been observed in the tropical Pacific Ocean. (1/3)

We continue to monitor Hurricane Humberto and AL94 in the Atlantic. Make sure to check hurricanes.gov for the latest forecast.

Exciting!

Wow 😮 I wonder if they mean a full working website as it was versus just a PDF. That would be really great, it was an amazing resource. Especially the Art x Climate section which I used to highlight on C(.)gov socials every Friday for a time.

Most of the U.S. is getting a nice break this Labor Day weekend from the summer heat, but there are some exceptions – mainly in the west. Check out what's in store for you this weekend at weather.gov.

My former colleagues are the real MVPs, I’m so happy for them ❤️

New AMS statement outlines five foundational flaws that make the Department of Energy's Climate Synthesis Report "inconsistent with scientific principles and practices." Read the full statement: https://bit.ly/3UQRC82

It was truly an honor to interview two Hurricane Directors two decades after Hurricane #Katrina. One was at the helm during the storm, while the other leads today. The most profound lesson that emerged from our conversation? The critical importance of communication.

I am happy to be supporting the NWS in my new role with new content like this!

Ever wondered how heat stress is changing where you live? With the new Thermal Trace app from #CopernicusClimate and #ECMWF, you can explore “feels-like” temperatures, track heat stress categories and thresholds, and visualise interactive charts for your city.

Hmm… I’m certainly intrigued 🧐 My sources say this is legit.

Thousands of people in Eastern Canada are under evacuation orders and thousands more have been warned to be on high alert as quick-moving wildfires burn out of control during what has become Canada’s second-worst wildfire season on record.

The barriers mentioned here are what adapting to our changing climate looks like in real time! For the third August in a row record Mendenhall Lake has exceeded its record gauge height following a glacial outburst flood.

Read this great article from @haleythiemwx.bsky.social at @climate.noaa.gov on the 2023 flood to learn about the climate change connection #RIPClimateGov www.climate.gov/news-feature...

Due to mass confusion, clarifying again: Tsunami Watch: Tsunami of indeterminate magnitude is possible; stand by. Tsunami Advisory: Tsunami is likely *but will probably be small.* Evacuations unlikely. Tsunami Warning: Tsunami is likely *and may be large.* Evacuations needed.

As of 8:25 PM EDT July 29, 2025: Please visit tsunami.gov for the latest updates on expanding watches, warnings and advisories across the Pacific and western U.S.

"When you tear down a scientific enterprise, rebuilding it is not as simple as rehiring." — CIRES Director Waleed Abdalati discusses the impacts of cuts to NOAA with @axios.com Boulder. www.axios.com/local/boulde...

Hrrr afternoon run quick to try to develop the disturbance off the SE coast. Regardless stormy pulses will overspread FL through midweek as the system moves into / across the northern Gulf. Maybe #Dexter later this week? @WFLA

Your iPhone weather app now has @nws.noaa.gov notifications for things like tornadoes and flash floods alerts. Here’s how to turn them on for your location and any other locations you want to track plus an example of what one looks like.

Part 1: Happy Friday! It’s morning (mountain time) I’m sipping some coffee and just wanted to talk to you all about Wireless Emergency Alerts, why they are important, how to turn them on on your phone and just have a simple discussion. This video is split into two parts…

I’ve been working on sharing some basic climate science in video format (mostly on Instagram). But hey why not share it here too. :)

Today is the top of the month release of the NOAA CPC ENSO diagnostic discussion (EDD), and it will be the first time in 11 years that Climate.gov isn't releasing an associated ENSO blog update. It would have contained an updated version of this graph. [1/4]

These people care way more than anyone knows and way more than they ever get credit for 💔

“We will not go quietly into the night! We will not vanish without a fight! We're going to live on! We're going to survive! Today we celebrate our Independence Day!"

Your occasional reminder that climate change makes intense rain events more intense. At this point, the question is not "did climate change affect this" but instead "how much of an affect did climate change have?" www.nytimes.com/2025/07/04/u...

June 2025 #Arctic sea ice extent was the 2nd lowest on record for the month... This was 1,280,000 km² below the 1981-2010 average. June ice extent is decreasing at about 3.68% per decade. Data: @nsidc.bsky.social (nsidc.org/data/seaice_...).

Looks like my last article for climate(.)gov got pushed out last week. End of an era but glad this did get published. Give it a read!

Sad to see that leadership didn’t approve of my suggested post language (assuming since this is what is posted) that I submitted on my last day in May as the social media manager. Allow me share some of our team’s kind words here instead:

I sought comment from NOAA and the Department of Defense on this and received this reply today from NOAA's spokesperson. They suggest we use the surviving ATMS microwave that degrades significantly at the edges. You can see how much worse off we'd be with Erick last week if we only had ATMS.

I have been working on a pretty cool (at least I think so) personal project this week... Check out my portfolio website! haleythiem.myportfolio.com

Structural changes, like the development of an eyewall, are detectable in microwave images well before they are in visible or infrared images. It can tip off forecasters to the onset of rapid intensification, which as we've seen plenty of times, can occur shortly before a storm makes landfall. [5/5]

“Without this imagery, there will be increased risk of a ‘sunrise surprise,’ the realization from first-light images that a system had become much better organized overnight.” Not good as we head into an active hurricane season.

A heat wave has engulfed much of the eastern US over the last few days. Hundreds of daily high temp records have been broken, and all-time June high temp records have also been set. The heat wave is expected to ease for a large portion of the east through the weekend. Sourcing @nws.noaa.gov