-------- Original Message --------
294
NOUS41 KWBC 221421
PNSWSH
Service Change Notice 12-24
National Weather Service Headquarters Washington DC
1022 AM EDT Fri Jun 22 2012
TO: Subscribers:
- Family of Services
- NOAA Weather Wire Service
- Emergency Managers Weather Information Network
- NOAAPORT
Other NWS partners and NWS employees
FROM: Jason Tuell
Chief, Meteorological Services Division
SUBJECT: Implementation of Improved Space Weather Watch
Effective July 25, 2012
Effective Wednesday, July 25, 2012, at 1600 Coordinated Universal
Time (UTC), the NWS Space Weather Prediction Center (SWPC) in
Boulder, Colorado, will modernize its geomagnetic storm watch
products. These products will now be issued relative to the
highest expected geomagnetic storm category (NOAA Scale) and will
be based on the 3-hour geomagnetic K-index rather than the
24-hour A-index. This change will better align the SWPC
Geomagnetic Watch products with its Geomagnetic Warning products
and NOAA Scale designations.
The following SWPC products will be affected by this change:
AWIPS ID WMO Header Current Product Name NOAA Scale
-------- ---------- -------------------- ----------
SWXWATA20 WOXX20 KWNP WATCH: Geomagnetic A-index 20 G1
or greater predicted
SWXWATA30 WOXX21 KWNP WATCH: Geomagnetic A-index 30 G2
or greater predicted
SWXWATA50 WOXX22 KWNP WATCH: Geomagnetic A-index 50 G3
or greater predicted
SWXWATA99 WOXX23 KWNP WATCH: Geomagnetic A-index 100 G4-G5
or greater predicted
The AWIPS ID and WMO Header for these products will remain the
same; however, the product names will change:
AWIPS ID WMO Header New Product Name
-------- ---------- --------------------
SWXWATA20 WOXX20 KWNP WATCH: Geomagnetic Storm Category G1
predicted
SWXWATA30 WOXX21 KWNP WATCH: Geomagnetic Storm Category G2
predicted
SWXWATA50 WOXX22 KWNP WATCH: Geomagnetic Storm Category G3
predicted
SWXWATA99 WOXX23 KWNP WATCH: Geomagnetic Storm Category G4
or greater predicted
For more information, please contact:
Robert Rutledge Joe Kunches
Lead, SWF SWPC Customer and Media Relations
Boulder, CO 80305 SWPC Boulder, CO 80305
303-497-3029 303-497-5275
Robert.Rutledge@xxxxxxxx Joseph.Kunches@xxxxxxxx
National Service Change Notices are online at:
http://www.weather.gov/os/notif.htm
$$