top 10 TDWR loop from that environment

Attached is a 1949UTC special sounding from College Station, TX. Balloon was launched between the initial round of storms and ahead of the main frontal boundary. There is some convective contamination between ~540mb and 450mb, as we hit an updraft at this point.

Below is a November 19th, 2025 1714 UTC special sounding launched as part of our ATMO-251 class from Texas A&M's campus. Sharppy image and sharppy file are attached. Mixed layer parcel is also plotted. Launch was done as morning stratus deck was clearing.

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 🌀

The Copernicus Sentinel-2 polar-orbiting satellite made an extremely fortuitous pass over Hurricane Melissa right before it made landfall in Jamaica to provide these stunning images of one of the most powerful Atlantic hurricanes in history

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.

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.

Looking back at the rapid intensification of #Melissa, two things really stand out to me: 1) there were *5* consecutive six-hourly periods of RI 2) an RI period began when the storm was already at Category 4 intensity The red entries here highlight when an RI period began (30+ kt in 24 hr).

1-minute #GOES19/#GOESEast Visible and Infrared images with plots of GLM Flash Points showed prolific lightning activity within the inner eyewall of Category 5 Hurricane #Melissa as it approaches the SW coast of Jamaica. Low-altitude mesovortices persist within the eye.

A 10am EDT update from the National Hurricane Center now puts Melissa's sustained winds at 185 mph. Full text: www.nhc.noaa.gov/text/refresh...?

This is hands down the most extraordinary dropsonde in Atlantic recon history.

The most recent recon data suggests that Melissa continues to intensify. Central pressure now down to 907 mb and a dropsonde released in the northeast eyewall measured a mean wind in the lower 150m of 185 knots (213 mph). This hurricane is truly in rarefied air as far as Atlantic hurricanes.

Here it is. The last 10 years of hail events across the U.S. using my prototype hail tracking algorithm! Hoping to build out a more robust climatology of hailstorms like we have for tornadoes.

The EF-5 drought appears to be over wow kamala.cod.edu/offs/KFGF/25...

“Those who can make you believe absurdities, can make you commit atrocities.” - Voltaire.

Here is a 4-day track summary of Hurricanes #Humberto and #Imelda, showcasing an example of the #Fujiwhara Effect. They approached and interacted with each other, coming within 465 miles, but did not complete an orbit around a common center or merge before moving back away from each other. [1/4]

The center of high pressure in the Southeast United States is revealed by dotted cumulus clouds in a circular pattern. Areas of high pressure often dominate the broad atmospheric circulation in which clouds flow within. (2/3)

🚨 Recruiting Two PhD/MS Students 🚨 I am looking to bring on at least two GRAs (M.S. or Ph.D. Level) beginning Spring or Fall 2026 to join our CHAOS research group. Research projects will be related to artificial intelligence and machine learning applications for extreme temperatures and rainfall

Here’s a look at six new measures lawmakers just passed — and what these bills will do if Abbott signs them into law.

NWS is hiring! Lead Meteorologist (Job Series - 1340) openings are now on USAJobs.gov. Use your science, technical, and communication skills to lead shifts, issue critical forecasts and warnings, and help protect lives and property. Apply today!

🎊We are thrilled to announce the 2026 Award and Honors Recipients! Thank you to our members and friends for nominating these exceptional individuals and organizations making a difference in the weather, water, and climate fields. Meet the recipients here: https://bit.ly/4lHUgaZ

🚨 The @nws.noaa.gov is hiring #Meteorologists! 🚨 A total of 40 entry-level #Meteorologist positions are now open across multiple Weather Forecast Offices nationwide, closing #September 8th. Link: www.usajobs.gov/Search/Resul... #Hiring #Meteorology #STEM #FederalJobs

Here’s a first-of-its-kind vertical cross-section analysis of the eyewall of Category 5 Hurricane Erin, captured by AgileRadar’s ROARS radar system installed on NOAA’s Hurricane Hunters P-3 aircraft.

Yeah, my database shows this as a record for most-delayed LSR...

It’s been 42 years — August 18, 1983 — since Hurricane Alicia made landfall in Southeast TX. Galveston WSR-57 radar loop from HRD and NWS HGX.

The @ametsoc.org will be hosting a webinar about @nws.noaa.gov hiring, and the changes in the overall process on #August 20th at 12 PM EDT. Please consider registering if you are interested in upcoming or ongoing announcements. #Meteorology #Hydrology #ElectronicsTechnician #PhysicalScientist

So...uhh that is an impressive heat index: METAR OIKQ 280700Z 09010KT 7000 NSC 38/33 Q0997 NOSIG This is the part of the world where values like this can occur. Lots of interesting things going on in the trace leading up to it. Clear sensitivities to wind direction and mixing.

🚨🚨 I've independently confirmed with @NOAA that they received a late-breaking notice from @DeptofDefense that SSMIS data will continue to flow for the remainder of the lifespan of the satellites. I will be updating my reporting shortly. Here is the official NOAA statement 👇

The @nws.noaa.gov will be #hiring shortly for #Meteorologists, #Hydrologists, and #PhysicalScientists. If you recently graduated or are seeking employment in these fields, set up job alerts on www.usajobs.gov to receive notifications. #Hiring #Meteorology #Hydrology #WeatherForecasting #Operations

The first set of vacancy announcements for the @nws.noaa.gov since the exception was granted are now out for the #ElectronicsTechnician positions (0856 series), with announcements open through #August 8th. More announcements are expected in the weeks ahead. #hiring www.usajobs.gov/Search/Resul...

The @nws.noaa.gov account will begin posting here on Monday. www.weather.gov/media/notifi...

Here is the aerial images of Camp Mystic, TX, using data from MAXAR and @noaa.gov storms.ngs.noaa.gov/storms/2025_... #TXwx #StateOfTheFlood

As a journalist and emerging public historian, I spent much of the past week reading through transcripts of oral histories made and collected by residents of Kerr County, Texas – where flash floods killed more than 100 people this month. There’s one recording that stood out to me. 🧵

‼️ Concern continues to grow for dangerous & life-threatening flash flooding in the same areas hit by last weekend's devastating floods, with localized rain totals >10-12" possible. WPC Discussion: www.wpc.ncep.noaa.gov/metwatch/met... (Read the quoted posts for how the forecast evolved today)

Well I was today years old when I discovered that “Texas Flood” was not originally recorded by Stevie Ray Vaughan but by Larry Davis in 1958. youtu.be/lPs6Hv3nzLw

Chart below 👇

According Dr. Robert Atlas, the elimination of NOAA's AOML as proposed in their 2026 budget would result in a 20-40% decrease in hurricane forecast accuracy, costing the economy an estimated $10 billion each hurricane season. Sobering numbers on what's at stake.

Interview I did with @npr.org Here and Now on emergency warning system as related to the recent floods in Texas. www.wbur.org/hereandnow/2...

July 8th, 2025 1516 UTC special sounding launched as part of a youth camp on Texas A&M's College Station, TX campus. Mixed layer parcel path is plotted.

I remain struck by the event similarities to the conceptual model of @rschumacher.cloud's PhD work. Nam-3km cross-sections as it picked up on the event show the mesoscale setup well. Unfortunately end result was a catastrophic flash-flood with significant loss of life. 😞 bsky.app/profile/rsch...

It's been a bit since I've done a meteorological deep dive, but the devastating flash #flood in central Texas this July 4th/5th deserve a closer look. #TXwx Yes remnants of #Barry were involved helping enhance moisture. A remnant MCV from Mexico on 3 July also played a role. Full evolution below ⤵️

Meanwhile, here are the weather balloon launches from this morning. The red dots indicate locations that missed the launch today owing to short staffing. The blue dots indicate long-term outages.

The WCM is also a position designated by law in the Weather Research and Forecasting Innovation Act of 2017 (Public Law 115-25).

What Matt said. For example, if the rainfall west of Round Rock last night had been about 10-15 miles farther E or SE, it would have been a multi- billion dollar disaster with numerous casualties.

Had a great chat with Molly today. Wired has been doing great work.

I have spent the last 24 hours looking at media reports and social media posts about the Texas Hill County tragedy and being appalled by the level of misinformation I am seeing. I have tried to put together an updated, more reasoned summary I hope you'll read. open.substack.com/pub/balanced...

Mine too! But I get it honestly 😀

This is really instructive and indicative of one of the flash flooding archetypes in Texas. Deep tropical moisture from either remnant storms or even coming from the Pacific.

"NWS issued a flash flood warning at 1:14 a.m. Friday for a portion of Kerr County – where the majority of flood-related deaths have been reported. But it would be at least four hours before any county or city government entity posted directions..." bsky.app/profile/news...