Note:  While we are transitioning our web pages, products marked with an (*) link to product pages on the old system. Products on those pages are up-to-date, but links on those pages may go to old information or may be broken. Thank you for your patience!

Experimental Products

MDL is proposing to implement Localized Aviation MOS Program (LAMP) and Gridded LAMP (GLMP) Version 2.3 in January 2021. The changes associated with this upgrade are summarized here:

  • Addition of GLMP ceiling height and visibility guidance for Alaska on the NBM domain out to 38 hours.

  • Addition of GLMP 1-h convection and 1-h lightning probability and potential guidance for Alaska on the NBM domain out to 38 hours.

  • Addition of LAMP 1-h probability of precipitation guidance for the CONUS out to 38 hours.  This new guidance will be added to the LAV text bulletins and meteograms for CONUS stations.

  • Expansion of CONUS GLMP sky cover guidance to the NBM CONUS domain and extension of forecast projections to 38 hours.  

  • Refresh of CONUS conditional ceiling height and conditional visibility guidance at stations to incorporate the HRRR and extension to 38 hours.  This updated guidance at stations and new guidance for 26-38 hours will be added to the LAMP text bulletins (1-25 hours and 1-38 hours).

  • Addition of ceiling height, visibility, 1-h convection, and 1-h lightning guidance for 76 remote stations in Alaska.  A separate LAMP text bulletin will be made available on NCEP web services for these 76 remote Alaska stations.  Additional elements will be added to these bulletins in the next LMP implementation.


Portions of this research are in response to requirements and funding by the Federal Aviation Administration (FAA). The views expressed are those of the authors and do not necessarily represent the official policy or position of the FAA. Portions of the work are based upon work supported by the JTTI Program within NOAA/OAR Weather Program Office. 


This guidance is to be used for feedback only and not for flight planning purposes. 


For more information, please see our Public Information Statement requesting comments through September 23, 2020.