Several weather stories are developing across the U.S. this week that require emergency managers to monitor multiple hazards. Severe weather will continue from the Midwest into the Northeast through the end of the work week, while Florida's rainy season is beginning to reestablish itself after a recent dry stretch. Meanwhile, forecasters are watching the Bay of Campeche, where there is a low chance for tropical development later this weekend. Here's a breakdown of the active weather patterns we're tracking.
Severe Weather Threat Continues Into the Weekend
This week has already been an active week of severe weather. On Monday, there were over 180 reports of severe weather, most of which were damaging winds:
In fact, there were several reports of wind gusts over 100 mph in the Salina, KS area. The severe weather continued on Tuesday with nearly 300 reports of severe weather once again dominated by damaging winds:
Storms are ongoing as of this blog post across the Midwest but additional storms are likely later this evening and through the overnight hours. A level 3 out of 5 threat is in place for damaging winds, large hail, and a few strong tornadoes:
Watch the storms continue into the overnight and early morning hours in the future radar animation below that is valid from Wednesday 5 pm CDT to Thursday 7 am CDT:
Again, all hazards are possible including damaging wind, large hail, and tornadoes.
The severe weather doesn't stop in the Midwest. The Northeast will need to prepare for severe weather as well, especially on Thursday and Friday. Thursday's threat will be mostly for damaging winds storms develop in the afternoon:
This storm threat is being fueled by some of the warmest temperatures of the summer. Below are the forecast highs for Thursday with many locations getting well into the 90s and a few record highs possible:
Friday's severe threat for the region will encompass a slightly larger area and will include the potential for damaging winds and large hail:
For the past week, the daily thunderstorm activity so common in the summer months has been pretty minimal across the sunshine state. In fact, the entire state experienced well below average rainfall from June 3 through June 10th:
Because of this recent dry spell, we don't anticipate any improvements in tomorrow's drought monitor update. The good news is the next week should provide an uptick in storm activity and more widespread rain for the state, especially the Panhandle and northern parts. The image below shows the rainfall departure from average from June 11 - 18:
The return of a more typical summertime pattern will mean daily rounds of sea breeze thunderstorms, especially during the afternoon and evening hours. While not every location will see rain each day, coverage should be much greater than what Florida experienced during the past week.
In last week's On the Radar blog we discussed the potential for tropical development in the Gulf. Today, the National Hurricane Center issued their first area to watch of the season, with a 10% chance of development circled in the Bay of Campeche:
Last week, we shared the ECMWF Ensembles showing both the potential for this highlighted area and for something further north in the Gulf. Now, it looks like just the area highlighted above will have a chance for development:
This is right where development is expected this time of year. Environmental conditions and the system's proximity to land should limit any significant strengthening before it moves inland. It could bring some heavy rainfall to Mexico and even provide some enhanced moisture across the Southern US next week. This is illustrated nicely by the animated precipitable water from Friday June 12 through Monday June 15:
Severe weather across the Midwest, Great Lakes, Mid-Atlantic, and Northeast remains the most immediate concern through Friday. Florida's rainy season is also returning, bringing more widespread rainfall and daily thunderstorm activity back to the state. Meanwhile, the Bay of Campeche will be worth watching this weekend, although any tropical development currently appears likely to remain limited.
We'll continue monitoring all three weather stories and provide updates as conditions evolve.
Will severe weather continue through the weekend?
Yes. Multiple rounds of severe thunderstorms are expected from the Midwest into the Northeast through Friday, with damaging winds, large hail, and tornadoes possible.
Why is Florida becoming wetter again?
Florida's typical summer weather pattern is returning, allowing daily sea breeze thunderstorms to become more widespread after a recent dry period.
Is tropical development expected in the Gulf?
The National Hurricane Center is monitoring an area in the Bay of Campeche with a low chance of development later this weekend.
Could the Gulf system impact the United States?
Current forecasts suggest any development would likely remain near Mexico, though increased tropical moisture could eventually reach parts of the southern United States.
What is the biggest weather threat this week?
The most significant threat is the ongoing severe weather outbreak affecting portions of the Midwest, Great Lakes, Mid-Atlantic, and Northeast through the end of the workweek.