Louisiana Sets New 24-Hour Rainfall Record with 29.06 Inches
Louisiana Sets New 24-Hour Rainfall Record with 29.06 Inches
US · Published Jul 15, 2026
• A volunteer weather observer, Matt Carnicle, recorded a historic rainfall measurement of 29.06 inches in Louisiana on June 18, 2026, breaking the previous state record of 22.00 inches set in
• This measurement was part of the NASA-sponsored Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS), which engages volunteers to track precipitation data. The rainfall event, validated by Louisiana State Climatologist Jay Grymes and National Weather Service representatives, occurred in less than 12 hours and is considered a once-in-a-thousand-year event. CoCoRaHS also contributes to NASA research on hail melt rates in the southeastern United States, using volunteer reports to improve weather forecasting and atmospheric models.

Impact & Risks

The record-breaking rainfall highlights the potential for extreme weather events in Louisiana, which can lead to flash flooding and infrastructure damage. Such events are rare but pose significant risks to communities, especially in low-lying areas. The data collected by CoCoRaHS volunteers is crucial for improving severe weather warnings and understanding precipitation patterns. This event underscores the importance of preparedness for extreme rainfall, particularly in regions prone to flooding.

Related News
Today Hourly Daily
News