Drought, Bay
- When
- July 1, 12:00 AM EST to July 31, 12:00 AM EST
- Where
- Bay forecast zone
- Reported by
- OTHER FEDERAL AGENCY
- Coordinates
- 43.721, -83.942 (the zone’s center; the record gives no point)
An upper level high pressure ridge dominated the weather pattern across southeast Michigan beginning late June and continuing through the month of July. This ridge prevented the development of widespread thunderstorms, and prevented rainfall from moving into the region from the west.
Every event with a place to put it; 17 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
An upper level high pressure ridge dominated the weather pattern across southeast Michigan beginning late June and continuing through the month of July. This ridge prevented the development of widespread thunderstorms, and prevented rainfall from moving into the region from the west. While there was occasional isolated thunderstorms, much of the region suffered a pronounced dry spell. The lack of rainfall put a hardship on the area's water supply and measures were taken to curb usage. This included prohibiting outdoor watering in many communities in Macomb, Washtenaw, Genesee, Oakland, and Wayne counties. During the five week period ending July 28th, Detroit Metro Airport officially reported only 0.32 inches of rainfall. This became Detroits 11th driest month on record. With 1.59 inches, this was Flint's 10th driest month on record. In contrast to July, April through early June saw slightly above normal precipitation. This wet spring delayed planting of crops and resulted in shallower than normal rooting systems for crops already established. By mid summer, however, the upper air pattern changed and rainfall waned. In terms of timing, the drought impacted many summer crops during moisture-sensitive growth stages of greatest water need, leading to moisture stress which peaked by mid August. It was estimated that yields of corn, dry beans and soybeans were 1/3 from normal. Rains returned to the region in mid and late August. Too late, however, to reverse the negative effects from mid summer. At the date of this publishing, an estimate dollar amount of damage to area crops is unknown.
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 30, 7:50 PM EST, 4 hours 10 minutes earlier.
SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 850 PM EDT SAT JUN 30 2001 WILL UPDATE TO REMOVE EVENING WORDING. HARD TO RULE OUT ISOLATED SHOWERS OR THUNDER AT ANY TIME...BUT LOOKS LIKE MOST OF CONVECTIVE ACTIVITY WILL LIKELY ORGANIZE CLOSE TO COLD FRONT SWEEPING THROUGH LATE TONIGHT INTO EARLY SUNDAY...AS PER 18Z MESOETA OMEGA FIELDS. WILL THUS CALL FOR CONSIDERABLE CLOUDINESS OVERNIGHT...BECOMINNG NUMEROUS SHOWERS/STORMS AFTER AROUND 1 AM NORTH...2 AM CENTRAL...AND 3 AM SOUTH. .DTX...GALE WARNING...VERY LATE TONIGHT AND SUNDAY...LAKE HURON. DWD
MIZ047>049-053>055-060>063-068>070-075-076-082-083-011200- SEVERE WEATHER OUTLOOK FOR SOUTHEAST LOWER MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1022 PM EDT SAT JUN 30 2001 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF SOUTHEAST MICHIGAN OVERNIGHT...AND SOME STORMS COULD BE SEVERE. THEREFORE...SPOTTER ACTIVATION MAY BECOME NECESSARY. ISOLATED SHOWERS AND THUNDERSTORMS WILL BECOME MORE LIKELY AS THE NIGHT UNFOLDS...ALONG AND AHEAD OF A STRONG COLD FRONT WHICH WILL DROP SOUTHWARD OVER SOUTHEAST LOWER MICHIGAN. NUMEROUS SHOWERS AND STORMS WILL DEVELOP AFTER 1 AM ALONG AND NORTH OF A SAGINAW TO CARO TO BAD AXE LINE...THEN SPREAD SOUTH...NOT REACHING AN ANN ARBOR TO DETROIT LINE UNTIL AFTER 3 AM. THUNDERSTORM MOVEMENT OVERNIGHT WILL BE TO THE EAST AROUND 25 MPH. SOME STORMS COULD PRODUCE WIND GUSTS TO 65 MPH AND HAIL AS LARGE AS QUARTERS. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA OUTLET...FOR THE LATEST INFORMATION ON THE SEVERE WEATHER THREAT...INCLUDED ANY SEVERE WEATHER WATCHES OR WARNINGS. DWD
The national radar mosaic for the moment the first event began.
17 drought. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2001Every state in 2001This day in weather historyWarnings in Michigan, July 2001
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: 5259006, 5259007, 5259008, 5259009, 5259010, 5259011, 5259012, 5259511, 5259512, 5259513, 5259514, 5259515, 5259516, 5259517, 5259518, 5259519, 5259520.