{"id":11661,"date":"2024-02-13T04:20:05","date_gmt":"2024-02-13T03:20:05","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=11661"},"modified":"2024-02-13T04:20:05","modified_gmt":"2024-02-13T03:20:05","slug":"is-the-mississippi-river-frozen-now","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/is-the-mississippi-river-frozen-now\/","title":{"rendered":"Is The Mississippi River Frozen Now"},"content":{"rendered":"
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Temperature Conditions of the Mississippi River<\/h2>\n

The Mississippi River is the fourth largest river in the world and a vital lifeline for the United States. It runs through 10 states, from Minnesota to Louisiana and is the largest river system in North America. The river can be frozen in the winter months, but the extent of the freeze varies. It depends on the temperature of the air, the water level and the presence of other weather conditions in the vicinity.
\nAt any given time, the Mississippi River may be frozen over in some areas. It is more common to see ice accumulations in the northern parts of the river, such as the headwaters of Minnesota or Wisconsin. In some of the states further south, it is unusual to have ice on the river. Even then, the ice may only form near the shore or in shallow areas. The Mississippi River rarely completely freezes.
\nWhen the temperatures drop far enough, the Mississippi River’s surface does freeze. The river then becomes covered with sheets of ice that are up to several inches thick. Rivers freeze from the surface, which means the deeper the river, the less likely it is to be affected. This explains why the river seldom completely freezes over.<\/p>\n

The Effect of Precipitation on Water Temperature Levels<\/h2>\n

The water temperature of the Mississippi River can plummet when low temperatures, snow and ice are present. If a sudden drop in temperature occurs, such as with a cold snap, the river can freeze over almost instantaneously. But during the warmer months of the year, the temperature of the river is much higher, and the Mississippi rarely freezes.
\nTo further complicate matters, precipitation also affects the temperature of the river. When snow, ice and cold rain occur, the temperature of the water is lowered. This is due to a process known as evaporative cooling. This occurs when liquid water evaporates—the energy needed to make this possible is taken from the liquid itself, resulting in cooling. The energy is also taken from the surrounding atmospheric air, lowering its temperature even further.<\/p>\n

Protecting the Aquatic Wildlife<\/h2>\n

When the Mississippi River does freeze in its upper reaches, it can create a range of issues for the aquatic wildlife. Fish, mussels and other creatures need to keep moving to regulate their body temperature and obtain the oxygen they need. If the river completely freezes, the aquatic wildlife can become stranded and die.
\nLocal communities are very aware of the implications of the Mississippi River freezing and often take action to prevent it from occurring. For instance, some communities use machines to break up the ice and keep the river flowing. This helps to keep the water oxygenated and warm enough to sustain aquatic life.<\/p>\n

Implications of a Frozen Mississippi River<\/h2>\n

Aside from impacting on the aquatic wildlife, a frozen Mississippi River also affects the people living nearby. Freezing rivers can disrupt operations at businesses and major ports located along the river. Even with icebreakers and other preventative measures, the Mississippi River can still be hazardous to cross and operations have to be postponed.
\nIt is also dangerous for people to walk and ride across frozen rivers, such as the Mississippi River. The climate of the area is constantly changing and the ice on the river may not be as sturdy as it appears. This can lead to life-threatening situations and therefore should always be avoided. <\/p>\n

Seasonal Temperatures of the Mississippi River<\/h2>\n