The Dangers of Flood Waters and How to Prepare for Flooding

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Over the last week there has been some extreme weather happening around the United States including tornadoes, large snow storms, frigid temperatures, and lots of rain! The rain bands across the mid-west and east coast this past week is starting to cause major flooding along the Mississippi River in Missouri and threats of flooding in 11 other states. The storm water has pushed over the levees near St. Louis, Missouri engulfing towns, homes, fields and roads in deadly floodwater. 

Flash floods are the most dangerous kind of floods, because they combine the destructive power of a flood with incredible speed and unpredictability. Flash floods occur when excessive water fills normally dry creeks or river beds along with currently flowing creeks and rivers, causing rapid rises of water in a short amount of time. They can happen with little or no warning.

Most of all deaths related to flooding are usually caused by people driving onto a flooded road and rushing water carrying them away. 

So what sort of steps can you take to stay safe during an event of flooding? Here are some safety tips to prepare for rising water—and what to do once a flood has begun.

Before a Flood

  • Avoid building in a floodplain.
  • Construct barriers (levees, beams, floodwalls) to stop floodwater from entering your home.
  • Seal walls in basements with waterproofing compounds to avoid seepage.
  • If a flood is likely in your area, listen to the radio or television for information.
  • Know the difference between a flood watch and a flood warning. A watch means flooding is possible. A warning meansflooding is occurring or will occur soon.

When a Flood is Imminent

  • Be prepared! Pack a bag with important items in case you need to evacuate. Don’t forget to include needed medications.
  • If advised to evacuate your home, do so immediately.
  • If there is any possibility of a flash flood, move immediately to higher ground.
  • If possible, bring in outdoor furniture and move essential items to an upper floor.
  • Turn off utilities at the main switches or valves if instructed to do so. Disconnect electrical appliances.

During a Flood

  • Do not walk through moving water. As little as 6 inches (15 centimeters) of moving water can make you fall.

    Image Source: Pixabay.com
  • If you have to walk in water, wherever possible, walk where the water is not moving. Use a stick to check the firmness of the ground in front of you.
  • Do not drive into flooded areas. If floodwaters rise around your car, abandon the car and move to higher ground if you can do so safely.
  • Do not touch electrical equipment if you are wet or standing in water.

After a Flood

  • Listen for news reports to learn whether the community’s water supply is safe to drink.
  • Avoid floodwaters; water may be contaminated by oil, gasoline, or raw sewage. Water may also be electrically charged from underground or downed power lines.
  • Avoid moving water.
  • Be aware of areas where floodwaters have receded. Roads may have weakened and could collapse under the weight of a car.
  • Stay away from downed power lines, and report them to the power company.
  • Return home only when authorities indicate it is safe.
  • Stay out of any building if it is surrounded by floodwaters.
  • Service damaged septic tanks, cesspools, pits, and leaching systems as soon as possible. Damaged sewage systems are serious health hazards.
  • Clean and disinfect everything that got wet. Mud left from floodwater can contain sewage and chemicals.

Source: U.S. Federal Emergency Management Agency

 

 

Winter Solstice 2015

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What exactly is the Winter Solstice? 

Late dawn. Early sunset. Short day. Long night. For us folks in the Northern Hemisphere, the December solstice marks the longest night and shortest day of the year. Meanwhile, on the same day of the December solstice, the Southern Hemisphere has its longest day and shortest night.

The winter solstice happens every year when the Sun reaches its most southerly declination of -23.5 degrees. In other words, when the North Pole is tilted furthest – 23.5 degrees – away from the Sun, delivering the fewest hours of sunlight to the Northern Hemisphere during the year. 

 This year the solstice is occurred this morning, Tuesday December 22nd at 04:49 GMT (Universal time) with the sun rising over Stonehenge in Wiltshire at 08:04.

The solstice can happen on December 20, 21, 22 or 23, though December 20 or 23 solstices are rare.

Fun Fact: 

The last December 23 solstice was in 1903 and will not happen again until 2303!

Recent Volcano Eruptions

Image Source: Pixabay.com -- Momotombo Volcano, Nicaragua

This week there have been 2 major volcanic eruptions! The first happened on December 1 near Leon, Nicaragua with the eruption of Mt. Momotombo. This is the first time Momotombo has erupted in over 110 years! According to volcanologist, Erik Klemetti from Denison University in Ohio, “Although volcanoes can experience periods of dormancy and activity, very little is known about why a volcano might stay quiet for 110 years and then rumble back to life.”

Image Source: Pixabay.com-- Mt. Etna, Sicily Italy

The second volcano to erupt this week was Mt. Etna in Sicily. Mt. Etna gave Sicilians quite the spectacle on Thursday, December 3, 2015 as it erupted and created volcanic lightning over the city. This is the first time in 2 years since Mt. Etna has erupted. 

Volcanic lightning also known as a dirty thunderstorm is caused when electrical charges are generated when rock fragments, ash, and ice particles in a volcanic plume collide and produce static charges, just as ice particles collide in regular thunderstorms. Some of the most famous instances of volcanic lightning include occurred in Chile above the Chaiten Volcano, Alaska’s Mount Augustine volcano, Iceland’s  Eyjafjallajökull volcano,  and most recently Mount Etna in Sicily, Italy. 

Fun Fact: Why do volcanoes erupt? Volcanoes are just a natural way that the Earth and other planets have of cooling off and releasing internal heat and pressure!