Hail, Shiawassee
- When
- June 25, 5:46 PM EST
- Where
- Shiawassee County, Owosso
- Measured
- 1.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.000, -84.167
Thunderstorms developed during the afternoon and evening hours across the state. A warm and humid airmass, combined with a weak upper level disturbance, allowed the storms to develop.
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 episode as NWS DTX wrote it up.
Thunderstorms developed during the afternoon and evening hours across the state. A warm and humid airmass, combined with a weak upper level disturbance, allowed the storms to develop. Some of the storms that developed produced severe wind gusts.
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 Detroit, MI wrote its last area forecast discussion before the first event at Jun 25, 12:30 PM EST, 5 hours 16 minutes earlier.
SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 130 PM EDT TUE JUN 25 2002 CU FIELD BUILDING OVER THE SOUTH HALF OF THE CWA THIS AFTERNOON IN RESPONSE TO MOISTURE SURGE FROM THE OHIO VALLEY. MODELS DIPICT THIS NICELY ON 850 MB THETA-E FIELDS...WHICH SHOW FAIRLY STRONG ADVECTION THIS AFTERNOON AND EVENING...ESPECIALLY ACROSS THE SOUTH AND EASTERN PORTIONS OF THE CWA. BUFKIT SOUNDINGS STILL SHOW A FAIRLY STRONG CAP THOUGH AT 12K FEET...WITH SOME EROSION OF THE CAP THIS EVENING...CAPES ALSO SURGING INTO THE 3000J/KG RANGE ON LATEST LAPS ANALYSIS...AND PRECIPITABLE WATER ON THE INCREASE AS DEEPER MOISTURE MOVES INTO THE CWA...THUS IT APPEARS AS THOUGH SCATTERED CONVECTION WILL DEVELOP OVER THE CWA THIS EVENING...WITH RELATIVELY SLOW MOVEMENT AND POTENTIAL FOR SOME LOCALLY HEAVY RAIN. ANEMIC SHEAR PROFILE AND HIGH FREEZING LEVELS SHOULD PRECLUDE ANY SEVERE. MODELS IN GENERAL AGREEMENT THROUGH 60 HOURS...HOWEVER THE AVN IS A LITTLE QUICKER WITH FRONTAL PASSAGE WEDNESDAY NIGHT AND THURSDAY MORNING. PREFER THE QUICKER AVN SOLUTION AS THE ETA MODEL TREND IS ALSO SLIGHTLY FASTER THIS RUN. FIRST CONCERN IS CONVECTION OVERNIGHT. MODELS SHOW WEAK UPPER WAVE CURRENTLY OVER THE WESTERN OHIO VALLEY SLOWLY PUSHING NORTHEAST INTO THE CWA OVERNIGHT...THIS SHOULD PROVIDE THE FOCUS FOR SCATTERED CONVECTION THROUGH MOST OF THE NIGHT...WITH AN EMPHASIS ACROSS THE SOUTHERN PORTION OF THE CWA. MCS INITIATION OVER MINNESOTA LAST NIGHT AND EARLY THIS MORNING WAS NOT REAL IMPRESSIVE AND FELL APART FAIRLY QUICKLY THIS MORNING...REMAINING SHOWERS AND CLOUD COVER CURRENTLY MOVING ACROSS NORTHERN WISCONSIN...AND MAY BRUSH NORTHERN PART OF THE CWA THIS EVENING. 850 MB JET WEAKER TONIGHT ACROSS THIS REGION...THICKNESS DIFLUENCE FIELD MUCH WEAKER...AND CORFIDI VECTORS NIL...THUS INDICATING ANEMIC LOW LEVEL JET...THUS BELIEVE MCS POTENTIAL TONIGHT WILL BE MINIMAL...AND RESULTING CLOUD COVER ON WEDNESDAY WILL BE LESS THAN WHAT THE ETA IS INDICATING. WITH MORE SUNSHINE AND LESS CLOUD FROM MCS DEBRIS IT APPEARS AS THOUGH CAPES IN THE 2000-3000J/KG RANGE ARE MUCH MORE REALISTIC ON WEDNESDAY. ANTICIPATE BEST ORGANIZED CONVECTION OVER THE NORTHERN PORTION OF THE CWA WEDNESDAY AFTERNOON IN BETTER CONVERGENCE JUST AHEAD OF THE COLD FRONT AND IN WEAK UPPER DIFLUENCE IN ASSOCIATION WITH RIGHT REAR QUADRANT OF 300 MB JET. BETTER CHANCE FOR CONVECTION DROPS SOUTH DURING THE EVENING. SOUNDING PROFILES UNIDIRECTIONAL AND SHOWING WEAK SPEED SHEAR...THUS ANY SEVERE POTENTIAL APPEARS TO BE MARGINAL LATE WEDNESDAY AFTERNOON AND EVENING. AVN STABILIZES AIRMASS QUICKLY WEDNESDAY NIGHT ACROSS THE NORTHERN PORTION OF THE CWA...KILLING ANY CONVECTIVE THREAT THERE. HOWEVER RATHER BROAD SURFACE TROF AND SECONDARY UPPER WAVE WILL REQUIRE MENTION OF SHOWERS THROUGH THE EARLY MORNING HOURS. AVN/ETA VERY AGGRESSIVE IN DRYING OUT MID LEVELS ON THURSDAY ACROSS THE ENTIRE CWA...THIS KILLING ANY CONVECTIVE POTENTIAL...AVN EVEN MORE SO. PREFER THE WARMER NGM AND AVN GUIDANCE TEMPERATURES ON WEDNESDAY DUE TO ANTICIPATION OF LESS CLOUD COVER. .DTX...NONE. GSS
MIZ047>049-053>055-060>063-068>070-075-076-082-083-260900- HAZARDOUS WEATHER OUTLOOK FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 215 PM EDT TUE JUN 25 2002 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. HAZARD... SCATTERED THUNDERSTORMS ARE EXPECTED SOUTH OF INTERSTATE 69 THIS AFTERNOON...AND ACROSS ALL OF SOUTHEAST LOWER MICHIGAN TONIGHT. WHILE THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE...THEY MAY PRODUCE HEAVY RAINFALL AND LOCALIZED FLOODING. WIND GUSTS TO 30 MPH ARE ALSO POSSIBLE. STORMS THAT DEVELOP WILL MOVE EAST AT 15 MPH. DISCUSSION... MOISTURE WILL CONTINUE TO INCREASE ACROSS SOUTHEAST LOWER MICHIGAN THIS AFTERNOON...LEADING TO ADDITIONAL THUNDERSTORM DEVELOPMENT INTO THE EVENING HOURS. A COLD FRONT OVER NORTHERN WISCONSIN WILL MOVE INTO LOWER MICHIGAN ON WEDNESDAY. ADDITIONAL THUNDERSTORMS MAY DEVELOP AHEAD OF THIS FRONT...MAINLY AFTER MIDNIGHT ACROSS SOUTHEAST LOWER MICHIGAN. SPOTTER ACTIVATION... SPOTTER ACTIVATION IS NOT ANTICIPATED. OUTLOOK FOR WEDNESDAY AND THURSDAY... THERE IS A SLIGHT CHANCE OF SEVERE WEATHER ON WEDNESDAY. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL MEDIA OUTLETS...FOR THE LATEST FORECAST INFORMATION FROM THE NATIONAL WEATHER SERVICE. YOU CAN ALSO OBTAIN THE LATEST FORECAST ON THE NATIONAL WEATHER SERVICE WEB SITE. HTTP://WWW.CRH.NOAA.GOV/DTX/ (ALL LOWER CASE) BRAVENDER
The Detroit radar (KDTX), 66 km away, was scanning. The volume nearest the first event began at 22:46 UTC.
5 thunderstorm wind, 1 hail. Local standard time, as filed.
Spotters reported several trees and telephone poles blown down.
Numerous trees were blown down by a thunderstorm.
Several trees were blown down. One landed on a house.
The Addison Township fire department reported that several trees had blown down in thunderstorm winds.
Several trees were blown down in a thunderstorm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2002Every state in 2002This day in weather historyWarnings in Michigan, June 2002
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: 5302679, 5302684, 5302680, 5302682, 5302683, 5302681.