374
FXUS63 KIWX 011734
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
134 PM EDT MON JUN 1 2026
KEY MESSAGES
- DRY AND TRENDING WARMER TUESDAY THROUGH THURSDAY.
- WARM AND MORE HUMID FRIDAY THROUGH THE WEEKEND WITH HIGHS WELL
INTO THE 80S.
- PERIODIC CHANCES (30-60%) FOR SCATTERED SHOWERS AND STORMS
FRIDAY AFTERNOON THROUGH SUNDAY, BEST CHANCES ON SATURDAY.
DISCUSSION
ISSUED AT 134 PM EDT MON JUN 1 2026
A MID LEVEL TROUGH AXIS ALONG THE EASTERN FLANK OF AN OMEGA BLOCK
WILL DROP THROUGH THE LOWER AND EASTERN GREAT LAKES LATE THIS
AFTERNOON AND EVENING. THIS WILL FORCE ANY LINGERING SPRINKLES OR
LIGHT SHOWERS ASSOCIATED WITH AN ELEVATED CORRIDOR OF MOISTURE
CONVERGENCE SOUTH OF THE AREA BY THIS EVENING. TUESDAY THROUGH
THURSDAY WILL THEN FEATURE A RETURN TO PLENTIFUL SUNSHINE AND
WARMING TEMPERATURES AS RIDGING FOLDS SOUTHEAST INTO THE GREAT
LAKES AND OHIO VALLEY.
BLOCKED PATTERN BREAKS DOWN WITH A TRANSITION TO FLATTER QUASI-ZONAL
FLOW FRIDAY INTO THIS WEEKEND. A HIGHER THETA-E AIR MASS WILL
OVERSPREAD DURING THIS TIME IN RETURN FLOW WITH HIGHS WELL INTO THE
80S AND SFC DEWPOINTS INTO THE 60S. THIS WILL BRING PERIODIC CHANCES
FOR SHOWERS AND POSSIBLY A FEW THUNDERSTORMS FRIDAY AFTERNOON
THROUGH SUNDAY AS A BAROCLINIC ZONE LIKELY SETTLES OVER THE REGION
AND A SLOW MOVING, CONVECTIVELY AUGMENTED, VORT MAKES A RUN AT THE
REGION DURING THIS TIME. AS EXPECTED, DAILY CONFIDENCE IN POPS IS
LOW AT THIS RANGE WITH MODELS ARE ALL OVER THE PLACE REGARDING
DETAILS.
AVIATION /18Z TAFS THROUGH 18Z TUESDAY/
ISSUED AT 1145 AM EDT MON JUN 1 2026
LIGHT SPRINKLES MAY CONTINUE THROUGH THE EARLY AFTERNOON GIVEN
SOME ELEVATED FGEN BUT VERY DRY AIR IN THE LOW LEVELS WILL
MAINTAIN VFR CONDITIONS. HIGH-BASED CLOUDS WILL SLOWLY DISSIPATE
THIS EVENING. NORTHERLY WINDS WILL ALSO VEER E/NE TONIGHT BUT
REMAIN GENERALLY LIGHT.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...STEINWEDEL
AVIATION...AGD
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page