NOUS41 KWBC 071739 AAB
Service Change Notice 14-66: Amended
National Weather Service Headquarters Washington DC
140 PM EDT Thu May 7 2015
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
Other NWS Partners and NWS Employees
From: Eli Jacks
Acting Chief, Forecast Services Division
Subject: Amended: Changes to the Hurricane Local Statement
Effective May 7, 2015
Reference: Service Change Notice 14-67: Experimental Hurricane
Local Watch/Warning Product will Transition to
Operational Effective May 7, 2015
Amended effective date from June 1 to May 7, 2015, due to a high
chance of a subtropical or tropical cyclone developing near the
southeast United States coast
Amended examples to change "Significant Potential Impacts"
section header to "Potential Impacts".
Corrected to note that for the eastern, central and western
Pacific Hurricane basins, there will be no change in the current
format of the HLS.
Effective May 7, 2015, the NWS will implement changes to the
Hurricane Local Statement (HLS). The changes are in response to
a recommendation from the Hurricane Irene Service Assessment to
"improve the timing, readability, and usefulness of the HLS
issued by NWS Weather Forecast Offices (WFOs) when an area is
under tropical cyclone threat."
The following changes to the HLS, using input from social
scientists, will take place in 2015 for WFOs issuing the HLS in
the Atlantic hurricane basin:
1) The HLS will not use Valid Time Event Codes (VTEC).
Additional information on VTEC can be found online at:
2) The HLS will become a non-segmented product. All land
forecast zones will be included in every issuance.
3) The HLS will contain a succinct meteorological discussion
and will have sections containing generalized local impact
and preparedness information for land areas only. Potential
impact information is ordered based upon the greatest
expected impact. Possible sections are wind, storm surge,
flooding rain, tornadoes, and other coastal hazards. Only
those sections with a legitimate threat will be included.
4) The HLS will no longer be the disseminating mechanism for
issuing tropical cyclone watches and warnings in a WFOs area
of responsibility. Local tropical cyclone watches and
warnings in effect will be issued through the following WFO
a) Land zones: Hurricane Local Watch/Warning Product.
Please see Service Change Notice 14-67. The HLS is meant
to be paired with the Hurricane Local Watch/Warning
Product to provide a complete localized tropical
forecast from each WFO.
b) WFO marine zones: Marine Weather Message (MWW). Please see
A complete list of WFOs affected by the changes above can be
There will be no change to WMO headers or AWIPS IDs for the HLS.
Examples of the HLS for the Atlantic hurricane basin can be
For the eastern, central and western Pacific Hurricane basins,
there will be no change in the current format of the HLS.
Tropical cyclone watches and warnings for WFO marine zones also
will be moved to the MWW. WFOs affected are:
San Diego, CA
Los Angeles/Oxnard, CA
For questions regarding this notice, please contact:
NWS Marine and Coastal Weather Services Branch
Silver Spring, MD 20910
National Service Change Notices are online at: