textproduct: Northern Indiana
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Areas of light rain, drizzle and fog ending early today.
- Becoming mild this afternoon with highs in the 40s to around 50.
- Continued mild through early next week with rain likely Friday, Sunday and Tuesday.
DISCUSSION
Issued at 258 AM EST Thu Dec 26 2024
Mild and moist air accompanied by areas of light rain, fog and drizzle will continue to spread north over the forec ast area the rest of the night. The best chance for areas of dense fog forming is away from areas of rain which is expected to be near and north of the Michigan border and over northwest Indiana. At this time, it looks like warm air advection should be just strong enough to avert dense fog from forming (with visibilities staying above 1/2SM).
Otherwise, very mild weather will prevail through the weekend into early next week with high temperatures in the 40s and 50s & low temperatures staying above freezing. Vast quantities of energy of mostly Pacific origin will race east through early next week and bring multiple rounds of precipitation. Timing (given the latest GFS and ECMWF) looks to be close to a system arriving every 48 hours; each bringing around a quarter inch of rain (i.e. Friday, Sunday and Tuesday). Thermal profiles appear too warm to support anything other than rain or drizzle until cooler air spreads back over the are behind the Tuesday system. At this time, travel issues and weather related impacts appear unlikely through the end of the year Tuesday.
AVIATION /12Z TAFS THROUGH 12Z FRIDAY/
Issued at 620 AM EST Thu Dec 26 2024
Weak shortwave will continue to lift NE this morning with drier air also slowly advecting NE. Conditions will slowly improve through the day with VFR expected by this evening. Much lower confidence in timing of transitions at KFWA with many VFR obs already just upstream. Will hold with slower transition suggested by model guidance but it may need to be adjusted faster. There is some potential for BR again Fri morning but confidence is very low. More rain will arrive later Fri.
IWX WATCHES/WARNINGS/ADVISORIES
IN...None. OH...None. MI...None. MARINE...None.
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