Hurricane Isaac entered the Gulf of Mexico as a tropical storm on August 26, moving northwest after crossing Haiti, Cuba and the Florida Straits. Isaac moved slowly north northwest over the eastern Gulf . Isaac strengthened into a hurricane on the morning of the 28th when it was 75 miles south southeast of the mouth of the Mississippi River.  Isaac made landfall in Plaquemines Parish as a Category 1 Hurricane near Southwest Pass of the Mississippi River on the evening of the 28th. A second landfall occurred near Port Fourchon the following morning. The storm weakened to a tropical storm on the afternoon of the 29th about 50 miles west southwest of New Orleans, and weakened further to a tropical depression on the afternoon of the 30th near Monroe, Louisiana.
Even though Issac was of hurricane status from near the mouth of the Mississippi River into southeast Louisiana, only tropical storm force winds were recorded on land areas of Mississippi.  The maximum sustained wind in south Mississippi was 46 knots or 53 mph measured at the Gulfport Airport (KGPT) during the early afternoon of August 29th.  A portable weather station (Weatherflow Inc) near Gulfport measured a 48 knot gust, or 55 mph,  late on the morning of August 29.   Maximum wind gust of 58 knots or 67 mph was recorded at the NOAA NOS Bay Waveland station and also at Gulfport (Weatherflow Inc) late on the morning of Aug 29. The long duration of tropical storm force winds downed some trees and power lines across the region.
The minimum sea level pressure measured from a land station was 995.9 mb the NOAA-NOS station at Bay-Waveland station during the early morning of Aug 29th.
A storm tide ranged from approximately 5 feet in Jackson County to nearly 10 feet in Hancock County closer to Isaacs���s center. These values are approximately 3 to 8 feet above normal astronomical values.  Storm surge flooding impacts were greatest in Hancock County.

Persistent rainbands affected south Mississippi, especially the coastal sections produced heavy rainfall over a three day period.  10 to 20 inches of rainfall was common across the region.  A co-operative observer near Pascagaoula recorded the maximum reading of 22.20 inches of rain. Heavy rainfall produced both flash flooding and later moderate to major river flooding.  Record crests were observed on the Wolf River near Landon (Aug 31) and Gulfport (Sep 1), and the East Hobolochitto River near Cesear (Aug 31).  Storm surge and high tides restricted outflow of the rivers near the coast and lakes exacerbating flooding of low lying areas along rivers and bayous near the coast as they emptied into the Gulf.
There were two weak tornadoes documented that occurred along Mississippi coast which resulted in generally minor property damage.
Overall , impacts from Isaac resulted in at least $7 million in damages in south Mississippi and one direct fatality.  Much of the damage in the coastal counties of Hancock, Harrison, and Jackson, damage was related to storm surge on the coast, flash flooding, or river flooding. There will likely be adjustments in the damages as additional information and assessments are made.  There was one direct fatality in south Mississippi on morning of Aug 30 when a tree fell on a tow truck killing the 52 year old male driver.

Tornado in HARRISON, MISSISSIPPI
From 29-AUG-12 16:18:00 to 29-AUG-12 16:21:00 (CST-6)
Location: GULFPORT
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado moved inland and uprooted a tree after crossing Beach Boulevard. It caused significant damage to a home under construction on the corner of 15th Street and 18th Avenue. All walls of the home were shifted and leaning, with a portion of the roof collapsed. The tornado also collapsed the porch roof of a home on 19th Avenue. It caused mainly tree damage as it continued to move NNW before lifting.

Tornado in JACKSON, MISSISSIPPI
From 30-AUG-12 06:10:00 to 30-AUG-12 06:12:00 (CST-6)
Location: PASCAGOULA
Tornado F-scale: EF2
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in the south portion of Pascagoula. Most of the damage was consistent with EF-1 scale damage consisting of downed trees and light structural damage to a few houses. A small area of significant damage...EF-2...occurred where nearly all of the roof of a large house was blown off. Path length 0.7 miles. Path width 40 yards.

Tornado in JACKSON, MISSISSIPPI
From 29-AUG-12 18:14:00 to 29-AUG-12 18:16:00 (CST-6)
Location: OCEAN SPGS ARPT
Tornado F-scale: EF1
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in the Gulf Park Estates area causing damage to roofs on several houses and blowing out windows. A few trees were downed and large tree branches snapped. Path length approximately 0.4 miles. Path width 40 yards.

Tropical Storm in AMITE, MISSISSIPPI
From 28-AUG-12 12:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in HANCOCK, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in HARRISON, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in JACKSON, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in PEARL RIVER, MISSISSIPPI
From 28-AUG-12 12:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in PIKE, MISSISSIPPI
From 28-AUG-12 12:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in WALTHALL, MISSISSIPPI
From 28-AUG-12 12:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tropical Storm in WILKINSON, MISSISSIPPI
From 28-AUG-12 12:00:00 to 30-AUG-12 10:00:00 (CST-6)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Storm Surge/Tide in HANCOCK, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 12:00:00 (CST-6)
Property damage: 2.10M
Crop damage: 0.00K
Reported by: Emergency Manager

Storm Surge/Tide in HARRISON, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 12:00:00 (CST-6)
Property damage: 2.10M
Crop damage: 0.00K
Reported by: Emergency Manager

Storm Surge/Tide in JACKSON, MISSISSIPPI
From 28-AUG-12 06:00:00 to 30-AUG-12 12:00:00 (CST-6)
Property damage: 600.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash Flood in HARRISON, MISSISSIPPI
From 29-AUG-12 12:30:00 to 30-AUG-12 03:00:00 (CST-6)
Location: LONG BEACH
Flood cause: Heavy Rain / Tropical System
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Rainbands associated with Tropical Storm Isaac persisted over Harrison County producing torrential rainfall. US Highway 49 near Orange Grove was impassable for periods of time due to flooding and several secondary roadways were flooded in the county. A number of houses also had flooding. High tide levels limited the runoff of heavy rainfall in the coastal area.

Flash Flood in JACKSON, MISSISSIPPI
From 30-AUG-12 03:30:00 to 30-AUG-12 14:00:00 (CST-6)
Location: JACKSON CO ARPT
Flood cause: Heavy Rain / Tropical System
Property damage: 1.20M
Crop damage: 0.00K
Reported by: Emergency Manager

Rainbands associated with Tropical Storm Isaac persisted over Jackson County during the overnight and morning hours producing torrential rainfall. Flooding of secondary routes was reported over much of the area. A number of high water rescues were necessary when neighborhoods in the Pascagoula and Escatawpa areas were flooded in the early to mid morning.

Flash Flood in PEARL RIVER, MISSISSIPPI
From 29-AUG-12 19:00:00 to 30-AUG-12 12:00:00 (CST-6)
Location: NICHOLSON
Flood cause: Heavy Rain / Tropical System
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Rainbands associated with Tropical Storm Isaac produced torrential rainfall across the county. Extensive secondary roadway flooding was reported and some houses flooded. A number of water rescues were conducted due to the flooding.  Interstate Highway 59 at mile marker 31 was closed for several hours due to flooding.

Flash Flood in PIKE, MISSISSIPPI
From 29-AUG-12 21:00:00 to 30-AUG-12 06:00:00 (CST-6)
Location: OAKLAND
Flood cause: Heavy Rain / Tropical System
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Rainbands from tropical storm Isaac persisted over the region producing heavy rainfall. Secondary roadways were flooded along with a few houses.

Flash Flood in WALTHALL, MISSISSIPPI
From 29-AUG-12 21:00:00 to 30-AUG-12 06:00:00 (CST-6)
Location: DINAN
Flood cause: Heavy Rain / Tropical System
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Rainbands from tropical storm Isaac persisted over the region producing heavy rainfall. Secondary roadways were flooded along with a few houses.