FXUS63 KIWX 262244

AFDIWX



Area Forecast Discussion

National Weather Service Northern Indiana

644 PM EDT Thu Jun 26 2025



.KEY MESSAGES...



- Hot and humid conditions again on Friday, with some brief

  relief from the heat on Saturday. 



- Scattered showers and thunderstorms are expected Friday  

  afternoon into Friday evening. These thunderstorms will be 

  capable of strong gusty winds and excessive rainfall. 



&&



.DISCUSSION...

Issued at 151 PM EDT Thu Jun 26 2025



Another hot and humid day with highs topping out around 90 

degrees and heat indicies near 100 after you combine in the 

humidity. Sensitive populations should continue to take extra 

precautions against the heat. Moderate to strong instability 

and PWAT around 1.6in will promote convection through the rest 

of the afternoon, as we have already begun to see late morning 

and early afternoon across the Michiana region. Weak overall 

shear will inhibit sustained updrafts, and storms should be 

pulse-like with strong gusty outflow winds being the predominant

threat (in addition to lightning and localized heavy rain, of 

course). 



A cold front will eventually work its way into the area on 

Friday. Additional showers and storms will be expected (60-70% 

chance) as this front moves through the area. By Saturday, 

temperatures will have "cooled" down slightly into the low-mid 

80s. Rain chances favor the southern half of our forecast area 

on Sat.



Warmer temperatures return Sunday and Monday. However, surface 

high pressure building over the Central Plains and troughiness 

returning to Ontario/Great Lakes region which will cool us down 

a little bit for the first couple of July days. Hopefully the 

return of dewpoints back in the 60s vs the 70s we've been 

experiencing will be a welcome relief.



&&



.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...

Issued at 644 PM EDT Thu Jun 26 2025



Stable outflow bubble into KFWA should result in dry/VFR 

conditions and light winds tonight into Friday morning. KSBN is

on the edge of this outflow this evening into the early 

overnight with an isolated shower or storm not out of the 

question during this time. VFR otherwise until a cold front 

moves in during the afternoon hours Friday with renewed storm 

chances. Gusty winds and brief IFR/MVFR restrictions in heavy 

rain will once again be the primary threats. 



&&



.IWX WATCHES/WARNINGS/ADVISORIES...

IN...Heat Advisory until 8 PM EDT /7 PM CDT/ this evening for 

     INZ005>009-012>015-017-018-020-022>027-032>034-103-104-

     116-203-204-216.

OH...Heat Advisory until 8 PM EDT this evening for OHZ001-002-004-

     005-015-016-024-025.

MI...Heat Advisory until 8 PM EDT this evening for MIZ078>081-177-

     277.

MARINE...None.



&&



$$



DISCUSSION...Norman

AVIATION...Steinwedel

