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Advected Layer Precipitable Water Product
This training introduces the Advected Layer Precipitable Water (LPW) product. Strengths/limitations are discussed along with operational applications. We also let you know how to receive this product in AWIPS from CIRA since it is currently non-operational (experimental).
Training Session Options
NOAA/NWS students – to begin the training, use the web-based video, YouTube video, or audio playback options below (if present for this session). Certificates of completion for NOAA/NWS employees can be obtained by accessing the session via the Commerce Learning Center.
Web-based video References/Additional Links
2021 version of ALPW training (YouTube video)
Talking points (2021 course version) are available for this lesson and may be printed out to easily review the session in detail at any time.
Gitro, C. M., and Coauthors, 2018: Using the multisensor advected layered precipitable water product in the operational forecast environment. J. Operational Meteor., 6 (6), 59-73, doi: https://doi.org/10.15191/nwajom.2018.0606
Forsythe, J. M., S. Q. Kidder, K. K. Fuell, A. LeRoy, G. J. Jedlovec, and A. S. Jones, 2015: A multisensor, blended, layered water vapor product for weather analysis and forecasting. J. Operational Meteor., 3 (5), 41–58.
Real-time ALPW product
2022 JPSS Science Report
Blog entry: Flooding in Utah – 26 July 2021
Blog entry: 30 November 2020 Severe Weather Event in the Mid-Atlantic
Blog entry: Moisture products for the tornadic storm of 4 July 2020 in Saskatchewan
CIRA ALPW Comparison for Two Northeast US Heavy Precipitation Events
Blog entry: Subtropical storm Melissa.
Blog entry: ALPW product for 26 April 2019 heavy rain / severe thunderstorm event.
Blog entry: 2-3 April 2019 East Coast Low – ALPW analysis.
Blog entry: 3 March 2019 – Severe thunderstorm and heavy rainfall event.
Blog entry: 14 February 2019 California Atmospheric River event
Blog entry: ALPW comparison for events in December 2018 – January 2019
Blog entry: 20 December 2018 Heavy Rain event in the Mid-Atlantic area
Blog entry: ALPW for 14 December 2018 event
Blog entry: The Arizona Hurricane Rosa Heavy Rainfall Event for Late September to Early October 2018
Blog entry: Some ALPW Comparisons between Florence, Harvey (2017), Maria (2017) and Matthew (2016) with respect to rainfall and severe weather
Blog entry: ALPW product for Hurricane Harvey
Blog entry: ALPW product for flooding on 27 July 2017
Blog entry: Onset of southwest monsoon as depicted by the CIRA ALPW product
Blog entry: ALPW product in identifying circulations in the vertical
Blog entry: 17-22 January 2017 Significant Precipitation for the West Coast
This course is
There are no prerequisites
Unless otherwise noted, all content on the CIRA RAMMB: VISIT, SHyMet and VLab webpages are released under a Creative Commons Attribution 3.0 License.