shamnadoes

⛈️💨

August 4th, 1980:

A record forty-two consecutive days of 100° heat finally came to an end at the Dallas-Fort Worth Airport on this day. July 1980 proved to be the hottest July on record with a mean temperature of 92 degrees.

Yesterday, Doha, Qatar, reported 90F, with a dew point of 90F, which gave a relative humidity of 100% and a heat index of 129F.

There’s something you don’t see every day — an MCV moving east to west into California towards the Death Valley region:

Another issue here is mismatch between public expectation & scientific reality re: what's possible in predicting localized convective extremes (i.e., severe/torrential t-storms). Days/environments supportive of such risk are predictable; exact timing/location/intensity of subsequent extremes is not.

The Texas floods over the last 2 days were predominantly associated with a long-lasting mesoscale convective vortex (MCV), but notice how there are multiple discrete rainfall maxima shown in the contours, each associated with different rainfall rates, duration, and phenomenon:

What a night working radar/warning ops for NWS Norman during their AWIPS upgrade ⛈️ I ended up issuing 17 svr tstorm warnings and 5 tornado warnings across Oklahoma 😮 Quite a fascinating supercell/QLCS event. Sorry to my Norman friends for setting off the sirens/phones and waking you up 🫤

Sorry for waking y’all up (that was my TOR)

Inside of an EF1-rated tornado and severe thunderstorm winds near Willard, CO on May 23. Watch the full video here: youtu.be/nRc38pZ0E5s

International Falls, MN hit 95 today. They hit 95 this year before Memphis, Dallas, Houston, Atlanta, Charlotte, Little Rock, and New Orleans. They now have as many 95 degree days through May 11 as San Antonio, Austin, and El Paso.

This is amazing!!

IEMBot Image TBD

FWD issues Summary Local Storm Report Link

The Sacramento weather service office just sent an email detailing product changes amid "critically reduced staffing"
Highlights:
Phone lines no longer answered
Reduced staffing from 6pm to 6am
Forecast discussions issued only 1x/day
Limited social media posting
Advisories mainly issued by day shift

Well today I got to issue my first #tornado warning since starting at @NWSFortWorth - and then I issued 7 more 😳 Crazy day with numerous supercells, several tornadoes and lots of damage across East Texas, but thankfully have not heard of any injuries yet #txwx

Cisco,TX (GZN) ASOS reports gust of 54 knots (62.1 mph) from WSW @ 1045Z -- KGZN 031045Z AUTO 25041G54KT 10SM VCTS BKN019 OVC024 13/09 A2978 RMK AO2

Wow...

And there you have it. At least a dozen tornadic supercells in an STP bullseye of 9, smack dab in the center of an SPC High Risk. We can stop complaining now, or rejoice, or just appreciate the NWS.

I’m debating making the trek north today

30 April 2025 is the last day for many colleagues I know.... Seems like the implosion of NWS will follow shortly after.

Nothing like a LP supercell out the window to keep you awake before the night shift at work

Relative Short-Range Forecast Impact from Aircraft, Profiler, Radiosonde, VAD, GPS-PW, METAR, and Mesonet Observations via the RUC Hourly Assimilation Cycle Abstract An assessment is presented on the relative forecast impact on the performance of a numerical weather prediction model from eight different observation data types: aircraft, profiler, radioson...

From knowledgeable scientists we’ve talked to, RAOBs have the second largest increase in error for upper air metrics when removed, behind aircraft data.

On average, losing RAOBs will decrease mesoscale NWP forecast skill.

doi.org/10.1175/2009...

doi.org/10.1175/MWR-...

doi.org/10.1175/BAMS...

#shamnado

In terms of the number of Tornado Warnings + Severe Thunderstorm Warnings + Flash Flood Warnings, this weekend’s severe weather events from the Midwest to the Southeast to the East Coast represented the busiest ever 3-day stretch for severe weather in the month of March for NWS Forecast Offices

Yeah I was live tweeting that one on X cause I could tell it was going to be a big one. Nearly 80kt VROT at one point 😢

10 deaths confirmed across Missouri after intense Friday storms The Missouri State Highway Patrol said 10 deaths have been confirmed after Friday's storms. The deaths occurred in southern Missouri, including one in Jefferson Co.

Sadly, at least 10 fatalities have been confirmed in MO from Friday storms. www.ksdk.com/article/news...

The 12z vs 00z HRRR did a great job of adjusting to the stronger forcing further south into Arkansas. It ended up close to what is currently ongoing.

It has also been adamant on producing tornadic storms in central MS in a few hours, too. That will be notable, if it happens.

Severe weather outlook for central Illinois

Today is my day off, but I will be heading to work in a few hours to help out with this outbreak. We have 10 people scheduled to work on an evening where the normal staffing is 2. We will keep working even if the government shuts down. Saving lives is our #1 priority.

And tonight, tomorrow, and every day is why we need NOAA/NWS. Kudos to these amazing meteorologists who work around the clock while short-staffed for the “protection of life and property and enhancement of the national economy. “

A fire burned through our Lake Carl Blackwell Mesonet site around 3:41-3:45pm. One of our thermometers measured a 1-minute average temperature of 173 F at 3:42pm. The 2 meter anemometer is now reporting 0, which indicates that it likely was completely melted. #okwx #okmesonet