Low pressure will move from the midwest through to the east coast, affecting states such as Illinois, Missouri, Arkansas, New Jersey and more.
Even though the rain is expected not to last long, minor street flooding is possible
Young children, the elderly and the homeless will be especially vulnerable to the cold, with frostbite and hypothermia conditions forecast.
Anyone in the states should watch for changing conditions including avalanches, heavy snowfall or rain, strong wind or rapidly warming temperatures.
Travelers in the northwest should expect periods of near blizzard conditions today through this weekend.
The animal, who was rescued from Newport Beach in December, was put down after suffering gunshot wounds.
NWS advises that conditions are favorable to flooding in the southeast of the U.S.
A guide on how to prepare for extreme winter weather and what to do if travelers get stuck in cold temperatures.
"A Winter Storm Watch means heavy snow, strong winds, freezing precipitation, and cold temperatures are possible," the National Weather Service warns.
The anglerfish was filmed during a dive off the southwest coast of Florida on November 19.
"It is worth recalling that the last time the Earth experienced a comparable concentration of CO2 was 3-5 million years ago," WMO Secretary-General Petteri Taalas said.
Several fires are currently raging in various parts of the state.
NOAA is predicting a warm end to 2019, but predicting the weather isn't always an exact science.
The South Carolina Republican is unfazed by the Inspector General's probe into the Hurricane Dorian forecast debacle around President Donald Trump and Commerce Secretary Wilbur Ross.
As President Donald Trump claimed Hurricane Dorian could hit Alabama, the National Weather Service tweeted to correct the rumors.
The Trump administration's Secretary of Commerce threatened top employees at the NOAA after the agency contradicted the president in a tweet about Hurricane Dorian's prospective path.
Pilots from the National Oceanic and Atmospheric Administration (NOAA) have been conducting regular flights into the storm to collect data and help forecasters make predictions.
President Donald Trump repeatedly claimed that Alabama is in the path of Hurricane Dorian, despite weather officials saying the opposite.
The storm equaled the record for the most powerful Atlantic hurricane ever to make landfall in the Bahamas, tying with the Labor Day hurricane of 1935.
"The views were absolutely stunning," David Peterson, a researcher who was in the cockpit at the time, said.
The bloom is one of the biggest recorded in recent years, spreading out 620 square miles.
One eyewitness captured a video of the creature as it swam between Wiggins Pass and Bay Colony.
Russia has declared a state of emergency in several Siberian regions in response to the wildfires, which are burning an area of around 2.7 million hectares.
The fatal wound, located above the right eye, measured around 6 inches in length and penetrated through to the top of the skull.
The animal was observed during an expedition aboard the National Oceanic and Atmospheric Administration's Okeanos research vessel.
NOAA scientists witnessed the event while searching for World War Two shipwreck the Bloody Marsh.
There are fire warnings in western U.S. states.
The remains have been placed inside one of 24 satellites set to be launched by the rocket later this evening.
This is only the second time in history that a giant squid has been filmed in its natural deep sea habitat.
Scientists estimate that the dead zone could grow to around 7,829 square miles—or about the same size as the state of Massachusetts.