WeatherNation Blog

Severe Threat Heightens in the Northeast and Beryl Continues

Tuesday, May 29th, 2012

Happy Tuesday everyone, hope all is well. Most folks are back to work and school now after the long holiday weekend. I’m sure it’s tough to get back into the swing of things, so I’ll start you off with this cool picture that was shared by

Beautiful Planet Earth Facebook Page, See here for more:

More Pictures

Thanks to Cathy Emmet Palmer for this picture out of Panama Beach, FL as remnant clouds from Tropical Depression Beryl rolled through the area. It certainly made for a beautiful sunset picture!

Intense Lightning

Thanks to Corey Hoffman for sharing this picture who says: “This one was taken by my friend while on a chase of a severe warned storm near Ohio, IL in Bureau County.”

Memorial Day Hail Pictures out of MN

Thanks to Anna Kate Louks for this picture out of Sartell, MN. Hail fell and neared the severe criteria of 1″ diameter, which is the size of a quarter. Everything else is what I call ‘small change hail’ or non-severe.

Thanks to Chuck Boos out of St. Joseph, MN for the picture below. These stones are clearly severe worthy as they are 1″ (quarter-size) or larger.

Thanks to Melissa Woods for this picture, also out of St. Joseph, MN. This too is severe worthy

I doctored it up get a more accurate depiction of the size. According to my dorky calculation, this stone may have been around 3.5″ wide!

As High as a Cumulonimbus

Thanks to Walt Kruhoeffer for this picture who took a flight to Baltimore over the weekend and saw this towering cumulonimbus cloud in the distance. Note how the thunderstorm seems to flatten at the top… this is where the thunderstorm has reached the tropopause or the highest point in the troposphere. The troposphere happens to be the layer in the atmosphere where all the weather here on earth occurs in.

Atmosphere

These are the different layers of the atmosphere, note the thunderstorm icon in the troposphere. Also note how the cruising altitude of the jet is located around the top of the thunderstorm at the tropopause. The graphic below is very reminiscent of picture above.

Image Courtesy: http://www.windows2universe.org/earth/Atmosphere/mesosphere.html

The reason for thunderstorms flattening out at the top is because as air parcels encounter the tropopause and the stratosphere where the air becomes more stable as temperatures begin warming with height. Air parcel here stop rising freely and become ‘capped’. The yellow line below mimics the temperature profile within each layer of the atmosphere.

Image Courtesy: http://www.atmos.illinois.edu/earths_atmosphere/basic_properties.html

Beryl Continues

The radar loop from early Tuesday showed bands of showers and thunderstorms still rotating around the raggedy center of circulation near southeastern Georgia.

Satellite Picture of Beryl

Beryl Track

The interesting thing about Beryl is that the forecast has it becoming a Tropical Storm again has it moves over open water by mid-week. The other thing to note is the close proximity to the coastal communities of the Carolinas. I’m concerned that wind damage may start to creep back into the picture in these areas, especially is the ground is saturated with heavy rains from Beryl. Trees could be toppled a little more easily if both winds increase and heavy rain continues to moisten the ground. Beach goers along the East Coast and especially in the Carolinas should be very weary of rip current potential!

Rip Current Safety

Rip currents are strong narrow currents moving away from shore. The strongest rip currents can attain speeds reaching 8 feet per second; this is faster than an Olympic swimmer can sprint! On average, more people die every year from rip currents than from shark attacks. According to the United States Lifesaving Association, 80 percent of surf beach rescues are attributed to rip currents, and more than 100 people die annually from drowning in rip currents.”

See more safety tips HERE:

Image Below Courtesy:

http://www.ceoe.udel.edu/ripcurrents/safety/index.html

Louisville, KY Flooding

Thanks to Laura Yancy for the picture below from near the University of Louisville in Kentucky. Within a matter of hours, several inches of rain inundated downtown Louisville. there were several reports of flooded streets and stalled cars.

Severe Threat Today

The Storm Prediction Center has issued a MODERATE RISK of severe weather across parts of the Northeast where hail and high winds looks to be the primary threat with isolated tornadoes possible. There is also a threat of isolated tornadoes across parts of the Central and Southern Plains.

Severe Threat Wednesday

Wednesday could be an interesting day with a MODERATE RISK of severe weather being issued across the Central and Southern Plains. Tornadoes could be an issued here again, so have those severe weather radios handy!

Thanks for checking in on this Tuesday, have a great rest of your week!

Don’t forget to follow me on Twitter @TNelsonWNTV

Calendar