Indiana Storm Chasing Network

Indiana Storm Chasing Network We specialize in live coverage of severe & winter weather in the state of Indiana and beyond. Follow along for forecasts, live storm chasing, & radar coverage.

01/18/2025

Lake effect snow will pick up this week across Northern Indiana. If ice cover quickly develops that may effect who sees lake effect.

01/17/2025

⚠️Sunset Alert!
The sunset is beautiful tonight across the region!

01/17/2025

Sun Halo Alert! ⚠️

A sun halo is being reported across the state as high-level cirrus clouds move in!

⚠️Cold weather alerts are starting to be issued!⚠️ A Extreme Cold Weather Watch has been issued for Eastern Indiana by t...
01/17/2025

⚠️Cold weather alerts are starting to be issued!⚠️

A Extreme Cold Weather Watch has been issued for Eastern Indiana by the Wilmington forecast office. The National Weather Service in Indiana has issued Special Weather Statements warning of the cold weather event on the way.

The coldest airmass arrives Sunday night through Wednesday morning. Wind chills will range from -20°F to approaching -30°F at times across the state. The coldest wind chill values are expected across central and northern Indiana.

More alerts will likely be issued over the next 24 hours!

Rain will move in late tonight across Indiana. Most seeing around a quarter inch with higher amounts possible across SW ...
01/17/2025

Rain will move in late tonight across Indiana. Most seeing around a quarter inch with higher amounts possible across SW Indiana and lesser amounts possible across northern Indiana if snow can mix in.

Rain may mix in or change over to snow across Northern Indiana early Saturday morning after 1:00am. Widespread snow accumulations are not expected however, some light slushy accumulations are possible (less than 1 inch). Temperatures will remain marginal tonight (33-35°F) across central and northern IN which will limit overall impacts.

Behind this system is an arctic cold front which is already moving into the upper plains today! This arctic front will bring very cold temperatures starting Sunday and lasting through Wednesday. Wind chills will be as low as -20 to -30°F.

01/17/2025

Widespread rain will move in late tonight! Some snow may mix in across portions of Central and Northern IN! More details to come!

Temperatures this week are going to drop like they saw a state trooper on I-69! We will go from the upper 30s to mid 40...
01/17/2025

Temperatures this week are going to drop like they saw a state trooper on I-69! We will go from the upper 30s to mid 40s today to single digits on Monday with wind chill values of -20°F or colder! 🚓👮‍♂️🥶👀

01/17/2025

Enjoy the "heatwave" today because the Siberian Express is on the way! Dangerously cold temperatures are likely next week! 🥶🌬

01/17/2025

For the first time in a long time, the entire state will be above freezing!
Highs will range from the mid 30s to mid 40s!
🥵🌡

01/17/2025

⚠️Winds could gust to 35-40mph today, especially across Northern Indiana!

01/17/2025

⚠️Patchy areas of freezing fog may develop late tonight across central and southern Indiana. This may also cause slippery roadways tomorrow morning.

⚠️Rapid freezing underway across the state! ⚠️Use caution on the roadways and watch for black ice! Roadways are becoming...
01/16/2025

⚠️Rapid freezing underway across the state! ⚠️

Use caution on the roadways and watch for black ice!

Roadways are becoming especially slippery as water and snow are freezing to the roadway! Wind driven snow has blown over many area roadways this afternoon. Temperatures near or slightly above freezing caused a lot of that to melt on the roads this afternoon. North-South oriented roadways seem to be the most affected from drifting.

That water is now rapidly freezing as temperatures drop, especially in rural areas! The roads that are most affected are untreated roadways and rural backroads!

01/16/2025

⚠️Black ice is possible tonight across the state where liquid water on area roads refreezes overnight tonight! ⚠️

Wetter than average conditions expected in the long term according the Climate Prediction Centers latest long term outlo...
01/16/2025

Wetter than average conditions expected in the long term according the Climate Prediction Centers latest long term outlook today!

Above average precipitation is expected across the Ohio Valley and Great Lakes regions aswell as the Pacific NW. Below average precipitation is expected for those across the western plains, rockies, desert SW and along southern states of the US. This CPC outlook is valid from February through April.

Check this out! The Siberian Express is on the way next week! Over 80% of the continental United States has a greater th...
01/16/2025

Check this out!
The Siberian Express is on the way next week! Over 80% of the continental United States has a greater than 90% chance for minimum temperatures being lower than 32°F (0°C) according to latest guidance! Not very often do you see probabilities go all the way to the Gulf of Mexico!

From Canada to the Gulf Coast!

01/16/2025

Once we get through next week, a warming trend may be on the horizon to end the month of January! 🌡👀

Rain totals through Saturday! And the science behind a process termed "Wet Bulbing." Rain will move into the state late ...
01/16/2025

Rain totals through Saturday! And the science behind a process termed "Wet Bulbing."

Rain will move into the state late Friday night and into Saturday. Most areas will see around a quarter of an inch or less. Higher amounts are possible across SW Indiana. Snow may mix in across parts of Central and Northern Indiana, which may lead to some slushy accumulations early Saturday morning. We may add some light snow accumulations if confidence increases that wet bulbing will occur to overcome marginal temperatures to allow snow to accumulate.

There is also a possibility that some rain may freeze on untreated roadways due to cold ground temperatures. We will not have a freezing rain event. However, if surface temperatures are slow to warm rain we may freeze for a breif period to area roadways where ground temperatures are below freezing.

How can it snow if air temperatures are above freezing?

We are watching for some snow mixing in across portions of Central and Northern Indiana despite air temperatures being marginal in the low-mid 30s. This is only possible through a process termed Wet Bulbing. This is when the wet bulb temperature is below 32°F while our air temperatures are above 33°F. Wet bult temperature (WBT) is a measurement of how much the air can be cooled by water evaporation.

As humans, our bodies cool by the same process. When we sweat, we cool our bodies by the evaporation of sweat. The evaporation of sweat cools the air surrounding our skin, making it feel colder. This is the same process in the atmosphere.

If the evaporation rate is very high, meaning water droplets are evaporating quickly, the surrounding air temperatures will begin to cool. This will allow snowflakes to fall all the way to the ground without melting even though temperatures at the surface are above 32°F!

01/16/2025

Rain will move into the state late Friday night. More details to come! 🌧 some areas may see more than .25"!

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