686
FXUS63 KIWX 061643
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1243 PM EDT WED MAY 6 2026
KEY MESSAGES
- SEASONABLY COOL TEMPERATURES WILL BE ACCOMPANIED BY FROST
TONIGHT.
- A SHORT PERIOD OF RAIN IS AHEAD FRIDAY AND FRIDAY NIGHT.
DISCUSSION
ISSUED AT 317 AM EDT WED MAY 6 2026
ANOMALOUSLY CHILLY AIR WILL PREVAIL OVER THE REGION THROUGH
FRIDAY AS AN UPPER LOW LINGERS OVER HUDSON BAY. THIS LOW BROUGHT
SHOWERS AND CHILLY AIR TO THE REGION YESTERDAY BEHIND A COLD
FRONT. THE COLD AIR WILL BRING THE LIKELIHOOD OF FROST FORMATION
TONIGHT ESPECIALLY NORTH OF HIGHWAY 30 AS TEMPERATURES DROP
INTO THE 30S. HIGHS BOTH TODAY AND THURSDAY WILL ONLY BE IN THE
50S. PONDERED HEADLINES FOR THIS UPCOMING NIGHT WITH SURROUNDING
OFFICES - THE CONSENSUS WAS TO DEFER ANY HEADLINES TO THE
DAYSHIFT. THE POSSIBILITY, EXTENT AND AMOUNT OF CLOUD FORMATION
TONIGHT UNDER THE HIGH-BASED SUBSIDENCE INVERSION WILL MAKE LOW
TEMPERATURE FORECASTS CHALLENGING.
A MILDER AND MORE UNSETTLED PATTERN IS FARTHER AHEAD INTO EARLY
NEXT WEEK AS THE UPPER LEVEL TROF OVER THE GREAT LAKES REGION
SHIFTS EAST AND AS THE UPSTREAM FLOW BECOMES MORE ZONAL. AMPLE
UPPER LEVEL DISTURBANCES WILL TRAVEL EAST IN THE UPPER FLOW AND
BRING CHANCES FOR SHOWERS. AT THIS TIME, SEVERE WEATHER CHANCES
APPEAR LOW.
AVIATION /18Z TAFS THROUGH 18Z THURSDAY/
ISSUED AT 1243 PM EDT WED MAY 6 2026
VFR CONDITIONS TO DOMINATE THROUGH THE PERIOD WITH WINDS
GENERALLY ON THE LIGHTER SIDE UNTIL THURSDAY WHEN A DISTURBANCE
APPROACHES AND ALLOWS FOR SOME INCREASE. MODELS INDICATE AN AREA
OF RAIN WITH THIS FEATURE, BUT TRENDS SUGGEST IT REMAINS SW OF
BOTH LOCATIONS (INCLUDING ANY POSSIBLE FLIGHT IMPACTS).
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...SKIPPER
AVIATION...FISHER
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