-------- Original Message --------
908
NOUS41 KWBC 121329
PNSWSH
Service Change Notice 13-60
National Weather Service Headquarters Washington DC
930 AM EDT Thu Sep 19 2013
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPort
Other NWS Partners and Employees
From: Eli Jacks
Chief, Fire and Public Weather Services Branch
Subject: Change in NWS Storm Prediction Center (SPC) "SEE TEXT"
Information in Day 1 and Day 2 Fire Weather Outlook
Products for CONUS only, Effective November 26, 2013
Effective Tuesday, November 26, 2013, at 1500 Coordinated
Universal Time (UTC), the SPC will replace the currently
displayed "SEE TEXT" reference in its Day 1 and Day 2 Fire
weather Outlook products with graphical depictions of areas of
Elevated Risk and areas of Isolated Dry Thunderstorms. In
addition, currently defined Dry Thunderstorm areas will be
relabeled as Scattered Dry Thunderstorms. No changes will be made
to the current Critical and Extreme Fire Weather areas.
Table 1 - Affected NCEP SPC Products
Product WMO Header AWIPS ID
------- ---------- --------
Day 1 Fire Weather Outlook FNUS31 KWNS PFWFD1
Areal Outline Points
Day 2 Fire Weather Outlook FNUS32 KWNS PFWFD2
Areal Outline Points
Day 1 Redbook Graphics PMWE98 KWNS RBGFW1
Day 2 Redbook Graphics PMWI98 KWNS RBGFW2
Critical Fire Weather Grids LDIY10 KWNS N/A
Day 1 LDIY11 KWNS N/A
Critical Fire Weather Grids LDIY20 KWNS N/A
Day 2 LDIY21 KWNS N/A
No changes will be made to the Fire Weather Outlook text products
(FNUS21 KWNS/FWDDY1 AND FNUS22 KWNS/FWDDY2).
In the Fire Weather Outlook Areal Outline Points products, SPC
will label the new Elevated Risk areas ELEV, while the Critical
Risk areas will continue to be labeled CRIT and the Extreme Risk
areas labeled EXTM. The new Isolated Dry Thunderstorm areas will
be labeled IDRT and Scattered Dry Thunderstorm areas will be
labeled SDRT.
The Critical Fire Weather Grids will use a label value of 5 for
the new Elevated Risk areas and continue to use label values of
8 for Critical areas and 10 for Extreme areas. The Dry
Thunderstorm Grids will use a label value of 5 for the new
Isolated Dry Thunderstorms and continue to use a label value of
8 for Scattered Dry Thunderstorms.
Examples of the new SPC Day 1 and Day 2 Fire Weather Outlook
Areal Outline Points products and graphics are online at:
http://www.spc.noaa.gov/exper/FWSCNExample/
NCEP SPC will begin issuing "preview" web graphics beginning
September 24, 2013, in advance of them becoming operational:
http://www.spc.noaa.gov/products/fire_wx/fwd1.html
and
http://www.spc.noaa.gov/products/fire_wx/fwd2.html
For more information, please contact:
John Ferree
NWS Severe Storms Services
Norman, OK 73072
john.t.ferree@xxxxxxxx
405-325-2209
National Service Change Notices are online at:
http://www.weather.gov/os/notif.htm
$$