NOUS41 KWBC 081415
CCA
PNSWSH
Service Change
Notice 14-42: Corrected
National Weather
Service Headquarters Washington DC
1015 AM EDT Fri
Aug 8 2014
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information
Network
-NOAAPort
Other NWS Partners and NWS Employees
From: Eli Jacks
Chief, Fire and Public Weather
Services Branch
Subject: Corrected: Operational Implementation of the
Storm
Prediction Center (SPC) Categorical
Day 1-3
Convective Outlooks for CONUS,
Effective
October 22, 2014
Corrected to
change Day 2 Red Book Graphic (RBG) Categorical
Outlook WMO
Header to PGWI47 KWNS and Day 3 RBG Categorical
Outlook to PGWK48
KWNS
Effective
Wednesday, October 22, 2014, at 1500 Coordinated
Universal Time
(UTC), the SPC Categorical Day 1-3 Convective
Outlooks for
CONUS will transition from experimental to
operational status.
http://www.nws.noaa.gov/om/notification/pns14day1-3outlooks.htm
After operational
implementation, the SPC Categorical Day 1-3
Convective
Outlooks for the CONUS will include two new risk
categories. Also, the associated text products will
include
these new categories and a new public-oriented,
plain language
national "SUMMARY" section above the
"SYNOPSIS" or geographic
area text discussion.
The addition of
the new risk categories is based on customer
feedback and the need to provide better consistency
with other
NWS
products. Additional
information and examples of these
Outlooks (using
historical data) are online at:
http://www.spc.noaa.gov/exper/dy1-3example/
Currently, SPC
uses the risk categories; SEE TEXT, SLIGHT,
MODERATE
and HIGH.
After operational
implementation on October 22, 2014, the SPC
will use the following categories:
Category 1 -
"MARGINAL" replaces the current "SEE TEXT".
Category 2 -
"SLIGHT" - little change, except the higher
risk
part of "SLIGHT" will become
"ENHANCED".
Category 3 -
"ENHANCED" is a new category to delineate areas of
risk in the high end of the current
"SLIGHT" risk, but below
"MODERATE"
risk.
Category 4 -
"MODERATE" - no change.
Category 5 -
"HIGH" - no change.
More information
regarding these risk categories is online in
the Product Description Document (PDD) at:
http://products.weather.gov/viewlist.php
The new
"SUMMARY" section in the associated text products is a
general 1-2 sentence statement of the severe weather
expected,
focused on the primary risk area, but including
other risk areas
when appropriate.
The "SUMMARY" section facilitates consistent,
forecaster-driven, concise communication for public
consumption
and for direct parsing into other products, such
as the Public
Severe Weather
Outlook, web page headlines, social media
communication, multimedia briefings, etc. The section
header is
a single line with the word
"SUMMARY" preceded and followed by
three-dot ellipses (...SUMMARY...).
The following
products reflect these changes:
WMO Header AWIPS ID Description
---------- --------
-----------
ACUS01 KWNS SWODY1 Day 1 Convective Outlook Discussion
WUUS01 KWNS PTSDY1 Day 1 Convective Outlook Areal Outline
PGWE46 KWNS RBG94O Day 1 Red Book Graphic Categorical Outlook
LDIZ17 KWNS
N/A Day 1 NDFD Categorical
Outlook
ACUS02 KWNS SWODY2 Day 2 Convective Outlook Discussion
WUUS02 KWNS PTSDY2 Day 2 Convective Outlook Areal Outline
PGWI47 KWNS RBG99O Day 2 Red Book Graphic Categorical Outlook
LDIZ27 KWNS
N/A Day 2 NDFD Categorical
Outlook
ACUS03 KWNS SWODY3 Day 3 Convective Outlook Discussion
WUUS03 KWNS PTSDY3 Day 3 Convective Outlook Areal Outline
PGWK48 KWNS RBG98O Day 3 Red Book Graphic Categorical Outlook
LDIZ37 KWNS
N/A Day 3 NDFD Categorical
Outlook
The points products (PTSDY1, PTSDY2, and PTSDY3) will include
new labels "MRGL" (Marginal) and
"ENH" (Enhanced).
For more
information, please contact:
John Ferree
NWS Severe Storms Services
Norman, OK
73072
405-325-2209
Steven Weiss
NWS Storm Prediction Center
Norman, OK
73072
405-325-2073
National Service Change
Notices are online at:
http://www.weather.gov/os/notif.htm
$$