Image Credit- Authors: Greg Greg Jennrich, David Straus, Muthuvel Chelliah, and Cory Baggett

Ensemble Prediction and Predictability of Extreme Weather via Circulation Regimes

A presentation given at NOAA’s 46th Annual Climate Diagnostics and Prediction Workshop used cluster analysis methods to investigate and forecast circulation regimes impact on weeks 3/4 predictions.  This study demonstrates that the dominant circulation regimes over North America are combinations of teleconnections where the clusters are related to temperature and precipitation anomalies. The computationally efficient…

Photo Credit: NOAA This lone thunderhead quickly blew up just at sunset after a day of monsoonal showers near Williamson Valley, Az. Thunderhead over Table Mountain. Image ID: con00020, NOAA's National Weather Service (NWS) Collection Location: Arizona, Williamson valley Photographer: Jeff Stillman Credit: NOAA Weather in Focus Photo Contest 2015

Advances in the Prediction of MJO Teleconnections in the S2S Forecast Systems

A recent study uses novel diagnostics to evaluate the ability of 11 state-of-the-art Subseasonal to Seasonal (S2S) forecast systems to represent the teleconnections of the Madden-Julian Oscillation (MJO) and the impact on mid-latitude weather systems and prediction. Several S2S program funded projects contributed to this work. While highlighting where model developments may be most beneficial…

AMS Building

Upcoming Sessions at AMS

The 103rd American Meteorological Society (AMS) Annual Meeting will be a hybrid meeting hosted in Denver, CO, on 8-12 January 2023. Innovative Technological Advances for Mesoscale Observing Systems The scope of this session includes weather- and water-related observations from the surface through the troposphere, with emphasis on the PBL, including in-situ surface, profiling, balloon-borne, radar,…

AMS Building

Upcoming Sessions at AMS

Town Hall: Interagency Long-term Research and Monitoring Program Plan on Hydroclimatological Changes in the Major Western US River Basins NOAA, in partnership with multiple agencies, is developing a joint research and monitoring program to improve the understanding of the hydroclimatological changes in the major river basins of the Western United States.  The program will consider…

VORTEX radar image

The Finish Line: JTTI Runs NOAA Internal Competition to Transition Matured Research into NWS Operations

The lack of continued support for projects that are near completion creates a backlog of usable resources that cannot be fully incorporated into operations. The NWS Office of Science and Technology indicated that this backlog impedes the growth and progress of NWS operations which reduces the benefit of forecast improvements for the public. WPO chose to work towards resolving this issue by holding a NOAA internal funding competition.