Hydrology

12 June 2024 Florida heavy rainfall event

Drenching Rains 16-17 May 2024 From Most Impactful Kona Low in 20 Years Resulted in Flooding Across Western Hawaii

The Texas / Southern Oklahoma Heavy Rain and Flooding of Spring 2024

By Sheldon Kusselson

Heavy Rain and Flooding Issues POES

Flooding in the UAE and Oman

During mid-April 2024, unprecedented flooding occurred in the Middle East, specifically in the countries of the United Arab Emirates (UAE) and Oman. Over the course of a few days, a series of storms produced significant precipitation totals that pummeled the region, which led to extensive flooding that shut down schools, grounded or diverted flights, and Continue Reading

Convection Dust GOES Heavy Rain and Flooding Issues Hydrology POES Satellites Severe Weather VIIRS

CIRA Satellite Moisture Products – New England localized flooding on April 11-12, 2024

By Sheldon Kusselson Animations: ALPW Layer Vapor Transport Percentile Ranking

Heavy Rain and Flooding Issues Hydrology POES Satellites

An Atmospheric River impacts the PNW

Another atmospheric river event impacted the Pacific Northwest (PNW), earlier this week. Plumes of moisture moved into the region that led to heavy precipitation and flooding for the states of Washington, Oregon, and Idaho. 24-hour precipitation totals from Monday, 4 December through Tuesday, 5 December 2023 were quite impressive over western Washington. Additionally, the Seattle-Tacoma Continue Reading

AWIPS Data Access Heavy Rain and Flooding Issues Hydrology POES Satellites

The Snowfall Rate (SFR) and merged SFR Products

As of early November 2023, the TOWR-S RPM v24 has been released for National Weather Service (NWS) users to update their local AWIPS terminals with the latest satellite data capabilities. Within the RPM v24 release, more NWS CONUS users will be able to access the Snowfall Rate (SFR) and the merged SFR (satellite plus radar) Continue Reading

AWIPS Data Access Hydrology Lake Effects Miscellaneous POES Satellites Winter Weather

The VIIRS Flood Map Product

Need a new satellite product to observe flooding? Look no further than the VIIRS Flood Map product. The VIIRS Flood Map calculates the flood extent of a 375-m pixel (i.e., known as the floodwater fraction percentage from 0 to 100%, displayed in green-to-red colors). The product also differentiates between scene types (e.g., cloud cover, bare Continue Reading

AWIPS Data Access Heavy Rain and Flooding Issues POES Satellites VIIRS

Atmospheric River event of 7-10 January, 2023

By Sheldon Kusselson and Dan Bikos Advected Layer Precipitable Water (ALPW) Loop

Heavy Rain and Flooding Issues Hydrology

CIRA ALPW depiction of Atmospheric River of 4-5 November 2022

By Sheldon Kusselson and Dan Bikos Advected Layer Precipitable Water (ALPW) loop Observed 1-Day Precipitation valid 1200 UTC 5 November 2022 over the Pacific Northwest region:

Heavy Rain and Flooding Issues POES