Macomb County, MI Environment & Hazard Risk

• TornadoVery High$58.5M/yr expected annual loss, about once every 5 years
• Cold waveVery High$40.6M/yr expected annual loss, about 2.6 events a year
• Strong windVery High$7.3M/yr expected annual loss, about 4.9 events a year
• Ice stormVery High$3.4M/yr expected annual loss, about 2.0 events a year
• Heat waveRelatively Moderate$5.9M/yr expected annual loss, about 4.2 events a year
• HailRelatively Moderate$2M/yr expected annual loss, about 2.4 events a year
• LightningRelatively High$1.2M/yr expected annual loss, about 34 events a year
• Winter weatherRelatively High$403K/yr expected annual loss, about 11 events a year
• EarthquakeRelatively Low$2.6M/yr expected annual loss, about once every 1,290 years
• HurricaneVery Low$80.5K/yr expected annual loss, about once every 65 years
• Coastal floodingRelatively Low$65.9K/yr expected annual loss, about once every 83 years
• WildfireVery Low$32.3K/yr expected annual loss, about once every 80,941 years
• LandslideVery Low$557/yr expected annual loss, about once every 14 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, drought, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

1,360 of 296,724 (0.5%)

Homes in high-risk flood zones

3,449

Insured in high-risk zones

1,028 (30%)

Flood claims since 1978

1,437

Claims paid since 1978

$9M

• Thunderstorm Wind373
• Hail160
• High Wind36
• Flood36
• Heavy Snow31
• Flash Flood25
• Lightning25
• Winter Storm22 · 1 death
• Heat15
• Lakeshore Flood10

• Flash Flood08/11/2014

  St Clair Shrs, Macomb County

  $300M damage

  What happened

  A historic rainfall event unfolded over Southeast Michigan on Monday, August 11, leading to major flooding and road closures. This event was caused by a strengthening low pressure system moving over the area, focusing the tropical moisture which came up from the south. The hardest hit areas included Metro Detroit and surrounding communities, along with Flint and the Saginaw Valley areas. Wayne, Southern Oakland and Macomb counties saw the worst of the flooding as 4 to 6 inches of rain fell over a 4 hour period. Around 75,000 homes and businesses suffered damage, with over 3000 suffering major damage. There was also damage to the roads and bridges, along with the city sewer pumps which were overwhelmed by the torrential rainfall. Total estimated dollar loss from the Detroit Metro area was 1.8 billion dollars. Farther north, across parts of Saginaw, Bay, and Genesee counties, flooding was not nearly as bad, but flooded roads with 2 to 3 feet of water were reported.

• Flood05/23/2004

  Macomb

  $100M damage

  What happened

  A stationary front over Iowa, Wisconsin, and Michigan over the weekend brought with it severe thunderstorms and heavy rains, which caused widespread flooding over Southeast Michigan. Much of the rainfall occurred in saturated areas that had experienced well-above average precipitation for the month of May. In fact, May 2004 will go down as the wettest May on record at Flint and Detroit. Over a 36 hour period (12 am May 22nd to 8 am May 23rd), 2 to 6 inches of rain fell across Southeast Michigan. A trained weather spotter in Armada reported the highest total, 5.8 inches. The following counties were declared a "state of disaster" due to the flooding and severe storms: Genesse, Livingston, Macomb, Oakland, Saginaw, Sanilac, St. Clair, Shiawassee, and Wayne.Here are some of the significant flooding reports:Shiawassee County: In almost every city across the county, officials reported significant sewer system overflows. The backyards of most residents along Brady Street in Corunna were submerged under several feet of water, with the worst flooding reported along the northern section of the street. St. Clair County: 300 homes were flooded. Most were in Marysville, Port Huron, and...

• Ice Storm04/04/2003

  Macomb

  $50M damage

  What happened

  An arctic frontal boundary moved south of the state by the morning of April 3, 2003. This front dropped temperatures to the freezing mark generally along and north of a Brighton to St Clair Shores line. Then, a series of low pressure systems moved across the front. This allowed very warm and moist air to lift north overtop of the sub-freezing temperatures near the ground. The first wave of precipitation moved across eastern Michigan late in the evening on April 3rd and continued through the morning of April 4th. Thunderstorms brought heavy freezing rain to the area during this time period. Spotter reports indicated up to 3 inches of freezing rain occurred in some places. Sleet was also reported across much of the Saginaw Valley. By the afternoon of April 4th, ice accumulations of one quarter to three quarters of an inch were reported across the area. The Saginaw Valley even had one to two inches of sleet accumulations in addition to the ice. After a break in the precipitation during the afternoon of the 4th, a second round of thunderstorms brought freezing rain and sleet to the area during the evening of April 4th, finally ending early in the morning of April 5th. By the...

• TornadoF0, 0.7 mi path, 100 yd wide07/03/1997

  Romeo, Macomb County

  6 injured, $30M damage

• High Wind56 kt wind03/08/2017

  Macomb

  $30M damage

  What happened

  A non thunderstorm event took place over the state on Wednesday, March 8, 2017, as high winds brought wind gusts in excess of 60 mph! The high winds took out power lines and trees, along with numerous reports of structural damage to buildings. There were also reports of brush fires and tractor-trailers flipped over around the area. Due to the extensive damage, many areas were without power for several days. Approximately 800,000 DTE customers and approximately 300,000 Consumers Energy customers were affected. The highest wind gust reported across Southeast Michigan was 68 mph at both Saginaw and Detroit Metro Airport.

• Heat07/14/2013

  Macomb

  25 injured

  What happened

  A six day heat impacted Southeast Michigan July 14th through the 19th with high temperatures ranging from the upper 80s to mid 90s. Heat Indices were in the 90s for the most part, but Detroit Metro area hospitals reported an increase of 173 heat related illnesses during this stretch. Here are the daily maxes reported at Flint Bishop Airport and Detroit Metro Airport during the six days.|Flint: 90, 93, 94, 95, 95, 96.|Detroit: 89, 93, 90, 94, 94, 95.

• Warren, City ofServes 134,056 · Purchased surface water · Local governmentNo health violations
• Sterling Heights, City ofServes 127,000 · Purchased surface water · Local governmentNo health violations
• Clinton TownshipServes 100,513 · Purchased surface water · Local governmentNo health violations+4 monitoring or reporting
• Macomb TownshipServes 90,000 · Purchased surface water · Local governmentNo health violations+2 monitoring or reporting
• Shelby TownshipServes 72,000 · Purchased surface water · Local governmentNo health violations
• St. Clair Shores, City ofServes 59,715 · Purchased surface water · Local governmentNo health violations+4 monitoring or reporting
• Roseville, City ofServes 47,299 · Purchased surface water · Local governmentNo health violations
• Chesterfield TownshipServes 41,650 · Purchased surface water · Local governmentNo health violations+1 monitoring or reporting