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Archive for November 6th, 2012

Hurricane Sandy and Huntsville Microseismicity

| 8:48 pm November 6, 2012

From Steve Jones with http://www.alabamaquake.com

Microseisms are the ever-present “background noise” of the earth, caused primarily by the action of ocean currents and waves against coastlines the world over. A landfalling hurricane produces high coastal winds and waves that can cause an increase in the level of microseismicity seen at locations well inland from the coast.

As Hurricane Sandy recently approached the United States mainland in a northward track that crossed over eastern Cuba, the Huntsville microseismicity changes attributed to the storm were recorded at AlabamaQuake beginning on Thursday October 25th. On Friday the 26th, the microseismicity began to grow, even though the storm’s wind speed was dropping somewhat, as the storm moved closer to South Florida. On October 27th, microseismicity continued to grow as windspeed dropped to 75mph and the storm center moved nearer to coastal Georgia, slightly closer to Huntsville. As the winds were maintained at 75mph and the storm continued its northward track over the waters of the Atlantic Ocean off the east coast of the US, the microseismicity decreased slightly, and remained at the same approximate level as the winds increased again early on the 29th, while the storm continued moving farther from the coastal regions nearest to Huntsville.

Late on October 29th, with the storm winds increased notably, the circulation center moved onshore at landfall in New Jersey and the Huntsville microseismicity again peaked, probably due to the extremely high wind and surf along the coast. Following landfall, the microseismicity dropped as the storm, now over land, decreased its high wind and waves impact on the US coastline. With the storm’s energy dissipating over the northeast US and southern Canada, the ground noise level began returning to more normal “pre-Sandy” levels.

Some Light Rain Tonight

| 3:37 pm November 6, 2012

An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.

GRAY ELECTION DAY: As expected, clouds have been hanging tough over much of Alabama today with only a few peeks of sunshine. Temperatures are in the 50s in most spots.

Another impulse coming down the back side of the deep upper trough over the eastern U.S. will bring some light rain to the northern half of Alabama tonight; rain amounts this time should be mostly 1/4 inch or less, and the best chance of rain comes from about 9:00 p.m. until 4:00 a.m. There is a good chance this rain will be gone by the time you drive to work tomorrow.

BECOMING WINDY TOMORROW: The sky will clear tomorrow, with morning clouds giving way to afternoon sunshine. But, the pressure gradient will tighten up as another nor’easter rolls up the Atlantic coast. Northwest winds will average 12-22 mph, with occasionally higher gusts. And, the day will be cool with a high only in the mid to upper 50s.

THURSDAY/FRIDAY: These days will feature cold mornings, with lows mostly in the 30s, but milder afternoons. The high Thursday will be near 60, followed by upper 60s on Friday. The sky will be sunny both days with a dry airmass in place.

THE ALABAMA WEEKEND: Still looking dry and mild. Lots of sun on Saturday with a high around 70, and low 70s are possible Sunday, with a partly sunny sky. Winds should pick up Sunday ahead of a cold front and upper trough to the west; that feature could bring severe weather to parts of the Great Plains Saturday night and Sunday.

STORMY MONDAY: The 12Z GFS hints at a line of strong to severe storms blowing through Alabama Monday night, with the main risk coming from strong straight line winds along the line. Then, we turn colder on Tuesday with a clearing sky. See the Weather Xtreme video for more details on the severe weather threat and the associated graphics.

FOOTBALL WEATHER: Looks great. Clear and cool for the high school playoff games Thursday and Friday nights… temperatures will fall through the 50s.

For Saturday’s Alabama/Texas A&M game at Bryant-Denny Stadium in Tuscaloosa, the sky will be mostly sunny with a temperature near 70 degrees at kickoff, falling into the 60s during the second half. Auburn will host Georgia Saturday evening at 6:00 at Jordan-Hare Stadium; the sky will be clear with a kickoff temperature near 65 degrees, falling into the 50 during the second half.

STORM ALERT XTREME IS SATURDAY: Our annual storm spotter training is coming up this Saturday at the BJCC, as part of the Alabama International Auto show. We begin at 9:00, and you will be done at 2:00. And, as a “thank you”, you will get free admission into the car show. There is no cost, and no need to register, just show up. Brian Peters will be the trainer, and we ask all existing and potential Skywatchers to attend. We are excited that Kevin Laws of the NWS Birmingham will be conducting a session on using dual-pol radar. See you there!

WEATHER BRAINS: Don’t forget you can listen to our weekly 90 minute netcast anytime on the web, or on iTunes. This is the show all about weather featuring many familiar voices, including our meteorologists here at ABC 33/40. Scroll down for the show notes on this week’s new episode.

CONNECT: You can find me on all of the major social networks…

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I had a great time today visiting with the kindergarten students at Walnut Park Elementary School in Gadsden… be looking for them on the Pepsi KIDCAM today at 5:00 on ABC 33/40 News! The next Weather Xtreme video will be posted here by 7:00 a.m. tomorrow…

Gray Election Day

| 6:03 am November 6, 2012

An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.

COOL AND DAMP: Low clouds cover Alabama this morning, and we see a little lingering light rain on radar over the eastern counties of the state. The weather won’t change much today; the clouds will hang tough, and a touch of light rain or drizzle will be possible. Temperatures won’t get out of the 50s.

TONIGHT/TOMORROW: Another bit of energy will pass through the upper trough over the eastern U.S. tonight, and that could squeeze out some light rain, mainly over the northeast counties of the state, and we will mention that possibility in the forecast. Then, for tomorrow, we will forecast a windy and cool day with a clearing sky as drier air works into the state. We won’t get out of the 50s, and the gusty northwest wind will make it feel cooler. We head for the mid to upper 30s early Thursday morning.

THURSDAY THROUGH THE WEEKEND: A warming trend will headline these four days, but nights will stay chilly (we should be in the mid 30s early Friday). Look for a high near 60 Thursday, followed by upper 60s Friday, and low 70s over the weekend.

Football weather should be fine; clear and cool for the high school playoff games Thursday and Friday night. For Saturday’s Alabama/Texas A&M game in Tuscaloosa, the sky should be mostly sunny with low 70s at kickoff. And, for the Auburn/Georgia game Saturday evening at Jordan-Hare Stadium, a clear sky with temperatures in the mid 60s at kickoff. Very nice.

While we enjoy a nice weekend, severe storms could erupt across the Great Plains Saturday night and Sunday ahead of a deep upper trough moving out of the western third of the nation.

SEVERE WEATHER HERE EARLY NEXT WEEK? The 00Z runs are not quite as bullish on a big severe weather issue here; the upper trough is not quite as deep, but there is still a good setup for a line of strong storms with potential for gusty winds. Of course, this will probably change again as it is just too early to be really specific. Just something to watch in coming days.

The mid-month period looks potentially active and stormy at times; see the Weather Xtreme video for the graphics and details.

STORM ALERT XTREME IS SATURDAY: Our annual storm spotter training is coming up this Saturday at the BJCC, as part of the Alabama International Auto show. We begin at 9:00, and you will be done at 2:00. And, as a “thank you”, you will get free admission into the car show. There is no cost, and no need to register, just show up. Brian Peters will be the trainer, and we ask all existing and potential Skywatchers to attend. We are excited that Kevin Laws of the NWS Birmingham will be conducting a session on using dual-pol radar. See you there!

WEATHER BRAINS: Don’t forget you can listen to our weekly 90 minute netcast anytime on the web, or on iTunes. This is the show all about weather featuring many familiar voices, including our meteorologists here at ABC 33/40. Scroll down for the show notes on the new episode we recorded last night. Very lively discussion on Sandy.

CONNECT: You can find me on all of the major social networks…

Facebook
Twitter
Google Plus

I will be doing a weather program this morning at Walnut Park Elementary School in Gadsden… look for the next Weather Xtreme video here by 4:00 this afternoon. Enjoy the day and VOTE!

WeatherBrains 354: 15-Minutes Late Already

| 5:00 am November 6, 2012

WeatherBrains Episode 354 is now online (November 5, 2012). If you are crazy about weather, this is THE netcast audio program for you!

It’s a triple play for this episode of WeatherBrains with not one, not two, but three guests!

Dave NussbaumDave Nussbaum serves as the 2une In and noon meteorologist for WBRZ News 2 Louisiana in Baton Rouge. Born in Chicago, IL, and raised in Pittsburgh, PA, Dave’s interest in television was sparked at an early age. Motivated with a deep passion for weather, Dave took advantage of the on-camera experience received through his position as his high school’s first weatherman. Dave’s interest in weather didn’t stop in his high school newsroom. After earning a Bachelors of Science from California University of Pennsylvania in Earth Science with an emphasis in Operational Meteorology, he went on to Mississippi State University where he earned a Masters degree in Geosciences with an emphasis in Broadcast Meteorology.

In 2008, the Louisiana Associated Press awarded him Best Weathercast. He earned 3rd place in the category in 2009. In 2007 he was also awarded 3rd place for his Breaking Weather coverage. Dave now resides in Baton Rouge. When he isn’t working, he enjoys cooking, running, storm chasing, and cheering for the Pittsburgh Steelers!

Jeff PiotrowskiFriend of the show Jeff Piotrowski is one of the top storm chasers in the business. Jeff is an experienced storm chaser. He is also a Regional Sales Manager at Baron Services, Huntsville, AL. He and his wife Kathryn, also a chaser, live in Tulsa, OK. Jeff was a guest on WeatherBrains 289.

Ryan HanrahanTo give us a northeastern perspective, we welcome Ryan Hanrahan, weekend evening meteorologist at the NBC station in New Britain, CT. Ryan Hanrahan joined the NBC Connecticut Weather Team in December, 2005, and serves as a general assignment reporter on weekdays in addition to his weekend weather duties.

Growing up along the shoreline in Guilford, CT, his interest in the weather was sparked by Hurricanes Gloria and Bob, along with the blizzards of ’93 and ’96. Ryan returned to Connecticut after working as a meteorologist for WNYT, the NBC affiliate in Albany, NY. He received his Bachelor of Science degree in meteorology from Pennsylvania State University.

Ryan currently lives in West Hartford. Besides forecasting the weather, Ryan enjoys spending his spare time at the gym, at the beach, or on the slopes skiing. He’s also actively involved with several community organizations including Special Olympics Connecticut, the National Kidney Foundation of Connecticut, and the Connecticut AIDS Resource Coalition.

Other discussions in this weekly podcast include topics like:

  • Extremes today: 98 at Camarillo, CA, and 15 at Alamosa, CO, and Jess Valley, CA
  • Severe Thunderstorm Watch for parts of Louisiana, Mississippi, and Texas
  • Cold in the Northeast and very warm in Texas and Southwest US
  • Snow coverage stands at 5 percent
  • Alaska has 100 percent coverage of snow
  • Nor’easter shaping up for the rest of the week
  • and more!

Our email bag officer is continuing to handle the incoming messages from our listeners.

From The Weather Center:

WeatherBrains 101: This week we continue the discussion on global circulations and give information on the Ferrell and Polar cells.

TWIWH: Bill Murray looks back at the week of November 5th.

Listener SurveyListener Surveys: Okay, we continue to drive this topic into the ground, but we really do like to hear from you. Many thanks to everyone who has taken the time to fill out the Listener Survey. The survey takes just a minute or two to complete and provides us with an opportunity to learn where you are and hear your thoughts and comments on the show. Click here to take the survey.

Web Sites from Episode 354:

Ryan Hanrahan’s Blog

NBC Connecticut Weather

WBRZ-TV Baton Rouge, LA

Picks of the Week:

JB Elliott – Amazing Ice Halos

Ryan Hanrahan – Dual Pol Webinars

Nate Johnson – Sandy’s Toll on New York

Bill Murray – Hybridization of Sandy

Dave Nussbaum – IBT Article

Brian Peters – Pictures from Sandy

Jeff Piotrowski – Air View of Dark New York

Kevin Selle – Wall Street Journal Article on Forecasting

James Spann – Blog post on Sandy and Global Warming

JP Spann – Before and After Sandy (interactive)

The WeatherBrains crew includes your host, James Spann, plus other notable geeks like JB Elliott, Nate Johnson, Bill Murray, Kevin Selle, and Brian Peters. They bring together a wealth of weather knowledge and experience for another fascinating netcast about weather.

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