textproduct: Grand Rapids

KEY MESSAGES

- Severe Weather Potential for Thursday Afternoon

DISCUSSION

Issued at 305 AM EDT Wed Mar 25 2026

- Severe Weather Potential for Thursday Afternoon

Only significant weather of note this week will be a chance for strong to severe storms across the southern half of the forecast area on Thursday afternoon. Model guidance continues to show the potential for isolated severe storms with large hail and damaging winds/isolated tornadoes south of I-96 Thursday afternoon, which congeals into a solid line of storms bringing a more widespread severe threat as it sinks south into northern Indiana and Ohio.

Deep layer shear of 50 knots and 0 to 1 km helicity over 200 m2/s2 is progged to be across the southern forecast area Thursday afternoon but instability may be limited, especially if morning clouds and showers persist into the afternoon. The 00Z GFS model soundings indicate the cold front will be clearing JXN and AZO by 4 pm with the potential for elevated strong to severe storms persisting above the stable layer until early evening. Strong push of colder air for later Thursday evening could see post frontal precip change to snow before ending.

AVIATION /12Z TAFS THROUGH 12Z THURSDAY/

Issued at 658 AM EDT Wed Mar 25 2026

VFR conditions will continue through Wednesday night. South winds around 10 knots through the afternoon then LLWS can be expected on Wednesday night.

GRR WATCHES/WARNINGS/ADVISORIES

MI...None. MARINE...None.