Erik R. Nielsen

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]

Still GeoColor satellite imagery from GOES-19 of cumulus clouds forming circular pattern in the Southeast United States on 2025-09-05.

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

Sirens, summer camps and weather alerts: Here’s what is changing in Texas after the special session When the governor called the Texas Legislature into special session after July’s historic floods, he topped his priority list with passing bills to better prepare the state for future natural…

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

National Weather Service logo.

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!

A photo of AMS medals and award.

🎊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 latter one is almost a daily thing for me...especially being on campus ha.

🚨 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.

In the last meeting I was in, AMS basically said attendance needs to be approximately 500 minimum for "speciality" meetings to be stand alone.

🚨🚨 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)

YouTube video by Deep Track Zach Larry Davis - Texas Flood (1958)

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.

The impact of emergency warning systems on flood zones There was little warning when floodwater from Guadalupe River surged through central Texas last week, killing over 100 people.

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.

This is correct. A 100-year event means there is a 1% chance it happens every year. Leads to major misunderstandings from a communication of frequency/understanding of impacts.

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...