Rapid changes in weather can be experienced in the northeastern US during the latter stages of October as to the west, cold Canadian air masses begin to regularly drop from Canada into the Northern Plains/Upper Midwest and to the east, the Atlantic Ocean remains relatively warm as it loses its stored summer heat more slowly than the continent. In fact, hurricanes can still form over the still relatively warm waters of the Atlantic Ocean and the contrast between the increasingly frequent cold air masses to the west and the warmth to the east often results in powerful storms just offshore. In late October 1991, several ingredients converged to create an immensely powerful storm that took on a few names including “The Halloween Nor’easter” or the “Unnamed Hurricane”. The most well-known name for this storm, however, is “The Perfect Storm” with a book and subsequent film of the same name.
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The World Series begins on Friday night, October 25th, in Los Angeles, California between the LA Dodgers and the New York Yankees. The weather will likely not be much of a factor for Games 1 and 2 with dry and warm conditions expected in southern California and daytime highs not far from 80 degrees. The World Series could end as late as November 2nd this year if all seven games are required to determine a champion. With the extra playoff round added a few years ago, a November finish to the baseball season is going to be more common and the weather can certainly be impactful. In fact, the weather has had a big impact on several World Series games in recent history ranging from biting cold-to-extreme heat and with respect to snow and rain as well.
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Last week, it was the northern lights and now - for another astronomical treat - a comet should be visible to the naked eye during the next week to ten days or so in the western sky after sunset. Comet Tsuchinshan-ATLAS has now exited the sun’s glare having come closest to the sun in late September. It made its closest approach to Earth this past Saturday, October 11th, passing about 44 million miles away. It is now rising a little bit higher each night in the western sky and remaining visible for a little bit longer period; however, it is also going to lose some its brightness with each passing day.
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Galileo turned his primitive telescope towards Jupiter in the early 1600’s and saw tiny specks of light with no discernable features. What a difference 400+ years can make as today’s backyard telescopes can resolve Europa’s disk surprisingly well. Europa is now considered one of the most complex and fascinating worlds in the solar system. Cracks, ridges, and chaotic terrain on the moon's icy crust may offer access to one of the largest oceans in the solar system--and a possible abode for aquatic life. NASA's Europa Clipper spacecraft, due to launch one week from now on October 10th, will conduct a detailed reconnaissance of the moon's surface to help plan future missions including a lander and perhaps even a submarine. Europa Clipper’s main science goal is to determine whether there are places below the surface of Europa that could support life.
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Hurricane Helene has strengthened during the past 24 hours and is now classified as a category 2 hurricane with maximum sustained winds of 100 mph. It should continue to intensify today as it closes in on Florida’s Gulf coast with the likelihood of reaching category 3 hurricane status featuring sustained winds of 111 mph or higher. Landfall is expected early tonight along Florida’s “Big Bend” Gulf coastal region – likely as a “major” – with a significant storm surge; especially, just to the right of the landfalling location where levels can reach 15-20 feet. With some acceleration expected later today, Helene will not have much time to weaken after landfall and, as such, it is likely to reach into southern Georgia as a hurricane during the wee hours of the morning. The lasting strength of Helene and its expected track into the Tennessee Valley assures significant impact inland to include the state of Georgia, and an especially vulnerable region is the southern Appalachian Mountains where upsloping winds can result in massive rainfall amounts of 1-2 feet and serious flash flooding.
By mid-day on Friday, the tropical system will become increasingly influenced by very strong “blocking” high pressure to the north and an upper-level trough of low pressure located in the southern Mississippi Valley. The tropical low will “rotate around” this upper-level trough of low pressure for a brief time in a pattern known to meteorologists as the “Fujiwhara effect” before it ultimately dissipates and gets absorbed by the upper-level low.
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On September 21, 1938, one of the most destructive and powerful hurricanes in recorded history struck Long Island and Southern New England. It was the first major hurricane to strike New England since the year 1869. The storm developed near the Cape Verde Islands on September 9, tracking across the Atlantic and up the Eastern Seaboard. The storm hit Long Island and Southern Connecticut on September 21, moving at a forward speed of 47 mph! Today marks the 86th anniversary of storm known as "The Great New England Hurricane of 1938" as well as "The Long Island Express" and the "Yankee Clipper". With no warning, the powerful category 3 hurricane (previously a category 5) slammed into Long Island and southern New England causing approximately 682 deaths and massive devastation to coastal cities and became the most destructive storm to strike the region in the 20th century. Little media attention was given to the powerful hurricane while it was out at sea as Europe was on the brink of war and the overriding story of the time. There was no advanced meteorological technology such as radar or satellite imagery to warn of the storm’s approach.
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At the end of the 19th century, America was beaming with confidence and feeling bigger and stronger than ever before. The city of Galveston, Texas was booming with a population of 37,000 residents on the east end of Galveston Island which runs about thirty miles in length and anywhere from one and a half to three miles in width. Its position on the harbor of Galveston Bay along the Gulf of Mexico made it the center of trade and the biggest city in Texas in the year 1900. A quarter of a century earlier, a nearby town was destroyed by a powerful hurricane and this object lesson was heeded by many Galveston residents and talks of a seawall to protect the city were quite prevalent. However, no seawall was built and sand dunes along the shore were actually cut down to fill low areas in the city, removing what little barrier there was to the Gulf of Mexico. This proved to be a fatal mistake for the city of Galveston in what nobody could foresee happening to this magical place that seemed destined to become the New York of the Gulf of Mexico.
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On September 1st, 1859, a ferocious solar storm took place that impacted much of the planet. This ferocious solar storm is now known as the “Carrington Event”, named after the British astronomer, Richard Carrington, who witnessed the largest solar flare from his own private observatory which caused a major coronal mass ejection (CME) to travel directly toward Earth. Recent studies of solar storms have warned that these type of “Carrington Events” may not be quite as rare as once thought (e.g., Hayakawa et al). Many previous studies leaned heavily on Western Hemisphere accounts, omitting data from the Eastern Hemisphere. A super storm of the same magnitude as the “Carrington Event” in today’s world would very likely have a much more damaging impact than it did in the 19th century potentially causing widespread power outages along with disruptions to navigation, air travel, banking, and all forms of digital communication.
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On September 1st, 1859, a ferocious solar storm took place that impacted much of the planet. This ferocious solar storm is now known as the “Carrington Event”, named after the British astronomer, Richard Carrington, who witnessed the largest solar flare from his own private observatory which caused a major coronal mass ejection (CME) to travel directly toward Earth. Recent studies of solar storms have warned that these type of “Carrington Events” may not be quite as rare as once thought (e.g., Hayakawa et al). Many previous studies leaned heavily on Western Hemisphere accounts, omitting data from the Eastern Hemisphere. A super storm of the same magnitude as the “Carrington Event” in today’s world would very likely have a much more damaging impact than it did in the 19th century potentially causing widespread power outages along with disruptions to navigation, air travel, banking, and all forms of digital communication.
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It was shortly after noon on August 24th in the year 79 A.D. and Mount Vesuvius sent a tall cloud of steam and ash high up into the atmosphere. The ancient Roman town of Pompeii near modern day Naples was soon covered in complete darkness and the thickness of the falling debris increased by about 6 to 8 inches per hour. The rocks which comprised the debris were up to 3 inches in diameter and fell with a speed of up to 100 miles/hour. This first phase of the eruption led to casualties primarily caused by roof collapses. After 12 hours of continuous explosive activity, the second phase of the eruption began and it was characterized by substantial flow of lava down the sloping Mount Vesuvius and this caused additional deaths and destruction. In fact, the eruption of Mount Vesuvius spewed 1.5 million tons of lava per second into Pompeii and surrounding towns. In a short period of time, an estimated 15 to 20 percent of Pompeii’s population died (about two thousand people), the small towns of Herculaneum, Oplonti and Stabiae were destroyed, and Pompeii was changed forever.
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