Watch this: Well over 1500 heat records smashed over the last week across the US. Likely the most deviant US #heatwave in memory. (There are many more, these are just the records tracked by CoolWx)

Likely the best visual of the historic heatwave in the US West. You just don’t see deviations like this.

Lowest snowpack on record in the Southwest by longgg shot! Only 36% of normal currently. Much lower in spots. Former record 57% in 2015 going back to 1987. Obviously this can have huge implications for water availability and fire season… 1/

So far March 2026 is the US warmest March on record, as should come as no surprise. But it’s only a sliver higher than 2012. It will be a race to the finish! (PRISM data)

Tremendous cold today in Antarctica!! 🥶 -105°F (-75°C). Imagine that 😳 The Coldest March day on record on the continent! When there’s extremes in one place, you can bet there are extremes in others! (Btw… Vostok is on the other side of the continent)

Believe it or not, the historic Western #heatwave amplifies again, bringing 100°+ , which up to this month has been exceedingly rare, back again. Here’s a crazy stat for you: Phoenix has already hit 100° + six days in a row. Prior to this March, the most extreme heatwave was six 90° days in a row 1/

*Earth is falling out of balance faster than ever* That’s a main takeaway from the WMO State of the Global Climate Report 2025. I want to highlight a figure and to be clear, I annotated it. This figure shows the amount of energy being retained by the Earth system… 1/

The Western snowpack is dire for late March. Less so in Montana but it's not great anywhere. And in most cases it's simply bad.

The long-lived March Meltdown continues this week with ~200 records expected from Monday-Saturday, and these only account for the major cities in NOAA’s database. The Heat will not be as severe as last week, but in any other week this would be quite eye opening.

14 new state March heat records have potentially been breached in this #heatwave! That’s stunning. Even 1 or 2 is rare. 14 - I’ve never seen that before. These records were compiled by Climatologist M. Herrera and will still need to be validated by NOAA to be considered official.

Never seen anything like this. 200+ monthly records set today alone! Every pink dot means a city set its new all-time highest March temperature! That’s around 570 new monthly records in the last 4 days. Some set multiple times. By far the most rogue #heatwave the US has experienced in memory.

Astonishing: The hits keep coming! 112 today near Yuma, AZ (and 3 other sites) breaks US March heat record set yesterday. And breaks the former US March heat record by 4°F. #heatwave

Tomorrow is forecast to reach 90° in #Denver. If it does, it is a ~1 in 6000 year return interval against the historical climate. Of course in today’s heated climate it’s much more common.

Watch: Relentless rain - again - in #Hawaii. Dam at risk of failure in #Oahu. Nearby residents told to leave. Here’s a short explainer illustrating what is going on both locally and also the larger scale pattern 1/

Remarkable. Another 160 March monthly records today and counting on the CoolWx site. That’s ~370 monthly records broken over (some multiple days) the last 3 days, and that’s only the observation sites which are processed on the CoolWx website, so it’s a big underestimate.

North Platte is forecast to reach 97 Saturday. Their monthly record is 91. If 97 is reached, the return interval on that is ~1600 years. The maps here shows only the main cities that will reach records Saturday. Left side are monthly records for March… 1/

New Study: Monster Heat Dome made 800X more likely and 5°F hotter due to climate heating!! Study via @WWAttribution #heatwave #climatechange #weather #california #arizona

New: Study says #heatwave made 800X more likely by climate change and 5°F more likely. 1/ www.worldweatherattribution.org/record-shatt...

Although this is hard to verify 100%, best I can tell we unofficially beat a US March record for the most intense Heat Dome (known in meteorology as a 500mb ridge) at 5,980 meters as initialized in the Rapid Refresh Model and Canadian RDPS models today… 1/

105° in #Phoenix today has a return interval of ~4,000 + years in March based on the historical record. It’s plotted against the highest March temp in each year back to 1896. The gray dot right under it is yesterday, otherwise the 105° would look even more errant… 1/2

History is made. New US March monthly heat record at Martinez Lake, AZ at 110°! The most intense spring #heatwave in US history.

At least 128 new March Monthly records set today and counting! Never seen a #heatwave like it! Amazing.

107 in #Phoenix today would beat the monthly record by 7 degrees. The odds of that happening on any given March is roughly 1-in-8500!! Now this is based on the entire period of record. It is of course much more likely today due to climate change. #heatwave

March Meltdown: Here are the records expected today. Yesterday 108 in SoCal tied the US record, today we expect ~111! #heatwave

US March record Tied today at 108°F 4 miles from North Shore, California today. Hotter tomorrow. Maybe 111 in SoCal.

Can’t say I’ve ever seen this many monthly records fall in a day. ~80 and that’s a conservative count. It’s gonna be even hotter tomorrow. #heatwave Map via CoolWx

Weather History expected tomorrow! SoCal is forecast to breach 108 which is the US March heat Record. Palm Springs forecast 109 and Mecca 111! This is being caused by a historic heat dome, sometimes called a ring of fire🔥 #heatdome #hot #california #arizona #heatwave

🥵 Astonishing heat in the West this week as arguably the most abnormal #heatwave we’ve encountered in the Spring historical record breaks monthly March records by leaps and bounds! Take a look at the forecast max temps this week vs the current March records (bottom). Breaking by remarkable margins!

Is he crying because it’s gonna be so cold tomorrow morning? Or because he realizes it’s the last cold morning until next December?? Perhaps we’ll never know. #Florida problems!

Heatwave for the Ages!! Starts today in the US Southwest. The hottest temperatures ever experienced in March in the US, and not just one day, multiple days, into next week! The US all-time hottest March record will likely be crushed and we may even challenge the US record for April! #heatwave

Remarkable. 114 is the official NOAA forecast for Mecca, CA on Friday. That would not only beat the March US record (107 in Mecca) but also the April US record of 113 in Death Valley. #heatwave

Our historic heat dome is just getting going, will peak Thursday and Friday, but continue well into next week. Here’s a look at day by day high temps. Wait for it. Many cities will break all-time March and even April heat records… 1/

All aboard the crazy temperature train!! From 80s this afternoon to 30s Tuesday morning! Some #Florida folks will feel a 50° temperature drop!

Otherworldly? Sounds over the top, but from the perspective of a meteorologist that’s how out of whack this looks. It’s like nothing we’ve seen before in March. It’s so abnormal that the heat dome causing this heat may even break a US record (500mb ERA-5 1950-present) for April and May too! 1/

Jet Stream Gone Wild! You’ll be hearing about a ton of extreme weather this week, from tornadoes to brutal heat to bitter cold! The reason is a highly amplified jet stream with max winds 200 mph+… you can see the really big north to south waves... 1/

March madness continues across the US as the battle between spring and winter continues. Winter will strike a blow this week as bitter air invades the US with freezing temperatures all the way down near the Gulf Coast Tuesday and Wednesday morning. And 30s and 40s all the way down to Tampa/ Orlando!

🥵 History will be made next week! The NOAA NDFD forecast high for Palm Springs, CA on Friday is now 111!! Insane for March. That would smash the current US record for hottest March day (108°) in Texas. 1/

I feel the word “historic” almost fails to meet the moment in describing next week’s heat dome in the West - that’s how unprecedented it is for March! The record part of this heat dome is literally everywhere colored in magenta… so yeah, that’s a Huge area… 1/

March Madness in the Northeast! From record heat yesterday, to snow and cold today! Florida snowbirds no doubt extending their stay 😂

Let’s talk about Hawaii. We are looking at a relentless rain event there due to a stalled atmospheric river. This movie has 3 parts, each spanning 10 days. The first two parts are precipitable water showing the atmospheric river in which the islands are 200%+ the majority of the time… 1/

Absurd heat! Despite our best efforts, the monster heat dome is bound to be "undersold" by the meteorology community. Why? Because intensity like this is almost never seen. This thing has the potential to be Epic for Mid-March, and not in a good way… 1/

The pattern next week is truly going to be extreme. A record breaking heat dome is forecast for the West with cities like Palm Springs and Phoenix likely to break monthly March records (possibly by a long shot) while the East sees a late season cold blast. It’s going to be wild.

Next week is going to be WILD across the nation! SoCal may hit 110° while parts of #Florida will drop into the 30s for lows. The forecast numbers you see below come from our best models. They won’t be perfect, but likely close. 1/

Which type of Tuesday do you prefer? Record #hot 🥵 or bitter #cold 🥶? Shocking swing incoming!

Call it a Comeback! Winter encore next week, with the Euro model showing cold wind chills into the 30s north of I-4! IF it happens, it will be quite the shock after this heatwave. Take it? Or leave it? #florida #cold

Pretty amazing in SoCal. Downtown LA may hit 100° on Friday! That’s crazy. Checked the data. The earliest 100 was April 4th. So IF this happens, it would be 3 full weeks ahead of the earliest 100. Also obviously the hottest March temp on record in LA as well (97 is the monthly record).

A major #heatwave is strengthening in the East!! 100s of heat records will be broken under the #heatdome. The warmest days are Tuesday and Wednesday. #heat #weather #florida

Puts things into perspective real quick. #sagan

Huge #heatwave this week. Hundreds of heat records will fall across the East. And then… whiplash! Temps will plummet 50° from midweek to late week. Well, except for you Florida 🤣 Us Floridians know as we get later into March, fronts have a hard time making it through. 1/

Another hot week ahead with record heat likely in several cities each day through Wednesday! March is the month that really cranks up the heat in #florida! Here’s a look at the all-time monthly highest max temps for each city. While most of these will stay safe, a few may be challenged.