Southwestern St. Tammany Parish storm history

A combination of heat and humidity allowed heat indices to climb into the 113-115 degree range on July 29th, which meet extreme heat conditions.

A combination of heat and humidity allowed heat indices to climb into the 113-115 degree range on July 28th, which meet extreme heat conditions.

A combination of heat and humidity allowed heat indices to climb into the 113-115 degree range on July 23rd, which meet extreme heat conditions.

Temperatures were below freezing for approximately 60 hours from the evening of January 20th through the afternoon of January 23rd. The coldest period was the morning of January 22nd when air temperatures and wind chills into the single digit range across the parish with the cold…

Several inches of snow fell across the parish beginning in the early morning hours and tapering off mid afternoon. The highest reported amount was 5.8 inches in Mandeville.

Francine's winds resulted in scattered damage to trees and powerlines, as well as damage to at least 10 homes and one library, mainly as a result of falling trees/branches.

Using a combination of NAVD88 data as well as analysis from the storm surge unit, peak storm surge in southwestern St. Tammany was 5-7 feet above normally dry ground right along the coast of the parish, specifically around the Tchefuncte River near Madisonville.

Multiple days of high tides impacted the parish with some roads on the southern end of the parish inundated. Lakeshore drive in Mandeville was completely inundated.

Nearby mesonet and ASOS observations showed temperatures dropping below freezing around 11pm on the 15th. Rain switched over to freezing rain around this time and persisted for several hours, resulting in around 0.1 to 0.2 inches ice accumulation. It can be assumed similar amount…

An abnormally dry summer and fall lead to continuing D2 to D4 drought conditions across the zone.

The entire parish was in D3-D4 drought for the entire month.

The parish was under D3-D4 drought for the entire month.

Portions of the zone was under D2 to D4 drought due to minimal rainfall.

Very hot and humid weather occurred for all of southeast Louisiana on August 27th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 26th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 24th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 23rd. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for most of southeast Louisiana on August 19th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Portions of the zone was under D2 to D4 drought due to minimal rainfall.

Very hot and humid weather occurred for most of southeast Louisiana on August 15th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 14th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 13th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 12th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 11th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 10th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 9th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 8th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 7th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 6th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 5th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 4th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 2nd. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred for all of southeast Louisiana on August 1st. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred over all of southeast Louisiana during the last day of July. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred much of southeast Louisiana, mainly along I-12 and northward during on July 30th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range each afternoon.

Very hot and humid weather occurred over portions of southeast Louisiana mainly along and north of I-12 on July 13th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 118 degree range.

Very hot and humid weather occurred over all of southeast Louisiana in mid July. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 118 degree range.

Very hot and humid weather occurred over portions of southeast Louisiana mainly along and north of I-12 on July 13th. High temperatures were in the upper 90s to 100 degrees with heat indices were in the 113 to 115 degree range.

The southwestern portion of the parish was in D2 drought through most of the month after a prolonged period of minimal rainfall.

The southwestern portion of the parish developed into D2 drought the last week of the month after a prolonged period of minimal rainfall.

The southwestern portion of the parish developed into D2 drought the last week of the month after a prolonged period of minimal rainfall.