1 hail, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Rapids, MI wrote its last area forecast discussion before the first event at Apr 13, 9:10 PM EST, 4 hours 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1010 PM EDT THU APR 13 2006 .UPDATE... IT SHOULD BE AN INTERESTING NIGHT. REGIONAL RADARS CONTINUE TO SHOW AN MCS DEVELOPING OVER NORTHWEST ILLINOIS. THIS IS IN AN AREA WITH STRONG DYNAMICS. PROFILERS AROUND THE UPPER MIDWEST ALREADY SHOW A 35 KT LLJ...PROGD TO GET STRONGER OVERNIGHT AS IT AIMS AT FAR SOUTHWEST LOWER MICHIGAN. UPPER JET ALSO MAKES AN APPEARANCE OVERHEAD TOO AND USHERS THROUGH A SHORT WAVE BY 12Z. A WARM FRONT IS SLOWLY MOVING NORTH ACROSS NORTHERN ILLINOIS AND INDIANA AHEAD OF THE SFC LOW IN MINNESOTA AND NORTHERN IOWA. THE RESULTING THICKNESS DIFFLUENCE SUGGESTS THAT THE MCS WILL CLIP THE SOUTHWEST CWA OVERNIGHT. DYNAMICS ACTUALLY INCREASE OVERNIGHT WITH 0-6KM SHEAR ABV 65KTS. THIS SUGGESTS SUPERCELLS ARE POSSIBLE. WE/RE ALREADY SEEING THAT ON RADAR OVER WISCONSIN AND ILLINOIS. SB CAPE ALSO INCREASES TO NEAR 1K J/KG BY 12Z TOO AND ELEVATED LI/S FALL TO -5C. WITH DYNAMICS INCREASING OVERNIGHT WE/RE GOING TO INCREASE THUNDER CHANCES OVER THE SOUTHWEST CWA...MAINTAING CAT POPS WITH SHOWERS. THE SEVERE THREAT IS CERTAINLY THERE AND WE/LL KEEP A CLOSE WATCH ON IT OVERNIGHT. .GRR WATCHES/WARNINGS/ADVISORIES...NONE. && 93
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 600 PM EDT THU APR 13 2006 LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-141010- ALLEGAN-BARRY-CALHOUN-CLARE-CLINTON-EATON-GRATIOT-INGHAM-IONIA- ISABELLA-JACKSON-KALAMAZOO-KENT-LAKE-MASON-MECOSTA-MONTCALM-MUSKEGON- NEWAYGO-OCEANA-OSCEOLA-OTTAWA-VAN BUREN- GRAND HAVEN TO WHITEHALL MI-HOLLAND TO GRAND HAVEN MI- PENTWATER TO MANISTEE MI-SOUTH HAVEN TO HOLLAND MI- ST JOSEPH TO SOUTH HAVEN MI-WHITEHALL TO PENTWATER MI- 600 PM EDT THU APR 13 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TONIGHT SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT WITH THE PRIMARY THREAT BEING HAIL GREATER THAN THREE QUARTERS OF AN INCH IN DIAMETER. THE STORMS ARE EXPECTED TO BEGIN AFTER 11 PM. STORM MOVEMENT WILL BE FROM WEST TO EAST AT ABOUT 40 MPH. IN ADDITION...SOME HEAVY DOWNPOURS COULD CAUSE URBAN AND SMALL STREAM FLOODING. THE STORMS SHOULD BE ENDING BY 6 AM ON FRIDAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE ON SATURDAY NIGHT INTO SUNDAY AS LOW PRESSURE MOVES THROUGH. THERE IS A SLIGHT RISK THAT A FEW OF THESE THUNDERSTORMS COULD BE SEVERE LATE SATURDAY NIGHT THROUGH SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TONIGHT AND POSSIBLY LATE SATURDAY NIGHT AND SUNDAY. LAURENS
The Grand Rapids radar (KGRR), 86 km away, was scanning. The volume nearest the first event began at 06:59 UTC.
1 hail. Local standard time, as filed.
Broadcast media reported three quarters inch diameter hail in Whitehall.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2006Every state in 2006This day in weather historyWarnings in Michigan, April 2006
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5494934.