```
NOUS41 KWBC 191600
PNSWSH
Service Change Notice 24-74
National Weather Service Headquarters Silver Spring MD
1200 PM EDT FRI JUL 19 2024
To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS Partners, Users and Employees
From: Stephen W. Bieda III, Ph.D.
Chief Severe, Fire, Public, and Winter Weather
Services Branch
Subject: Initiation of an Afternoon Issuance of the Day 3
Convective Outlook, issued by the NWS Storm Prediction
Center, Effective on or about August 20th, 2024
Effective on or around August 20th, 2024, the NWS Storm
Prediction Center will begin routine daily issuance of the Day 3
Convective Outlook (SWODY3). The issuance time will be 1930 UTC,
and the initial Day 3 Convective Outlook will continue to be
issued at 0730 UTC.
The content and format of the SWODY3 will not change, and the
afternoon routine daily issuance will provide the latest expert
assessment of the severe thunderstorm potential across the
conterminous U.S. in support of emergency planning and decision
making.
The NWS Storm Prediction Center will continue to issue the
Day 3 Convective Outlook under the following World
Meteorological Organization (WMO) Identifier (ID) and
Advanced Weather Interactive Processing System (AWIPS)
Product Identifier (PIL):
Product Name WMO Heading AWIPS ID
--------------- --------------- -----------
Day 3 Convective Outlook ACUS03 KWNS SWODY3
More information on the format and content of the Day 3
Convective Outlook can be found in the National Weather Service
Instruction (NWSI) 10-512 National Severe Weather Products
Specifications:
https://www.weather.gov/media/directives/010_pdfs/pd01005012curr.pdf
This directive will be updated to reflect the additional issuance
time for the SWODY3 issued by the NWS Storm Prediction Center.
Please direct any questions regarding this notice to:
Patrick Marsh
Chief, Science and Support Branch
NWS Storm Prediction Center
Patrick.Marsh@noaa.gov
National Service Change Notices are online at:
https://www.weather.gov/notification/
```
Of issue for this repo is the need to have a canonical cycle defined for this update. Will likely go with 20. Some tweaks to the IEM website are needed for this too...
akrherz
commented
1 month ago
SPC is adding a 1930z issuance day 3 outlook
Of issue for this repo is the need to have a canonical cycle defined for this update. Will likely go with
20. Some tweaks to the IEM website are needed for this too...