IWX issues Area Forecast Discussion (AFD) at Jun 26, 6:44 PM EDT299
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
Source:
IWX issues Area Forecast Discussion (AFD) at Jun 26, 6:44 PM EDT---------------
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