Bottom line: every storm has its own character and impacts! #hurricane #isaias #pensacola #Florida
@weatherprof.bsky.socialExactly
Jeff Berardelli
@weatherprof.bsky.social
Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa
@weatherprof.bsky.social@weatherprof.bsky.social@weatherprof.bsky.socialbut still seeing the strongest gusts dozens of miles west of the core was odd even for us meteorologists. This image is from NOAA Satellites, it called SAR Synthetic Aperture Radar It measures the roughness of the water and then translates that into wind. The purple is 80 knots, white 100…
@weatherprof.bsky.social🌀 Isaias “Sting Jet” 🛩️ Notice the strongest winds💨 were way west of the eye wall? That’s because the storm ingested a narrow and violent jet stream from high above on the storm’s west side and that rapidly descended to the ground. The models advertised it well…
@weatherprof.bsky.socialIt’s true. Just thought it was cool.
@weatherprof.bsky.social@weatherprof.bsky.social@weatherprof.bsky.socialI rendered the movie last night. That’s not an easy fix.
@weatherprof.bsky.socialEl Niño Guides #Isaias & #Rachel to Landfall!
It’s only October, but #ElNino is already in charge, influencing the Global pattern, interacting with #Hurricane Isaias and Cyclone Rachel. Heat from the Tropical Pacific is displacing & powering a VERY early season subtropical jet stream, impacting both
@weatherprof.bsky.sociallike strong mid/upper level winds, increasing the #Tornado threat. It’s one way in which this record shattering El Niño is making its presence felt. And that presence will only grow through severe weather and rain in the South and California this fall and winter. Yo soy El Niño everyone!
@weatherprof.bsky.social
@weatherprof.bsky.social(Although all set ups are different, Milton and Sandy come to mind) *This animation does use real wind data, but the tornadoes are added to illustrate where the greatest risk is. They are not meant to forecast exactly where the tornadoes will be.
@weatherprof.bsky.socialas the mid-latitude jet stream increases. And it gives the transitioning tropical storm system a different character. It causes the wind field at the core to expand, making the storm larger, empowering the outer bands with more wind, at the expense of the core winds which weaken…
@weatherprof.bsky.socialThat will create more cross winds/ shear, weaken #Isaias, but embolden spin in the outer bands. This injection of energy will power strong #tornadoes on the storm’s east side at landfall in the #Florida Panhandle and beyond into the Southeast. Not all storms have this, but it’s more common in fall..
@weatherprof.bsky.socialBlue are the mid-level winds associated with the jet stream. You’ll notice that as Isaias approaches the Gulf Coast the blue arrows increase and the low-level vs mid-levels winds vigorously cross (X) each other. That’s the jet stream (blue arrows) being infused into the tropical system…
@weatherprof.bsky.socialWe have an unusually High #Tornado Threat from #Hurricane Isaias
This movie uses real data, to help educate on why this storm poses an enhanced risk. Notice the yellow vs blue arrows. Yellow are the winds just below the clouds, it’s the low level wind flow (jet) around and feeding into the storm…
@weatherprof.bsky.socialEXTREMELY RARE: Tropical Storm Rachel threatens Southern California this weekend!
While all eyes are on #Isaias, will there be a #California Hurricane? Not quite! This weekend Tropical Storm #Rachel will likely make a direct hit on #SoCal and the Desert SW. Thanks, El Niño!
@weatherprof.bsky.socialTornadoes are often the forgotten threat in #hurricane landfalls, but for Isaias it may be memorable. From #louisiana to #mississippi to Alabama the #Florida Panhandle and #Georgia
@weatherprof.bsky.socialStrong SE wind at the surface, and fast SW winds aloft. That causes spin to the North/ East of the center of circulation. Also, storms that transition from Tropical to extra tropical quickly, due to strong winds/ dry air aloft, use that extra energy to power stronger tornadoes. As we saw in Milton
@weatherprof.bsky.social🌪️ Enhanced Tornado Potential 🌪️
#Isaias will likely be a bigger than average #tornado producer. That’s because as it approaches the #Gulf Coast, strong upper level winds along with a trough will catch/ merge with the storm circulation, producing strong cross winds in the low levels vs upper levels..
