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Public Information Statement 24-67 Updated
National Weather Service Headquarters Silver Spring MD
335 PM EDT Thu Apr 17 2025

To:  Subscribers:
  -NOAA Weather Wire Service
  -Emergency Managers Weather Information Network
  -NOAAPort
  Other NWS Partners, Users and Employees

From:  Gregory Schoor, Chief
       Marine, Tropical, and Tsunami Services Branch

Subject: Updated: Soliciting Comments on the experimental Graphical
Week
Two Marine Wind Speed and Wave Height Probabilities through
September 30, 2025

Updated to announce the Week Two web page graphics are now online.

Through September 30, 2025, the National Weather Services (NWS)
Ocean
Prediction Center (OPC) is soliciting comments on the experimental
Graphical Week Two Marine Wind Speed and Wave Height Probabilities.
OPC
produces the experimental Week Two graphical Marine Wind Speed and
Wave
Height probabilities graphics as part of the Week-Two Marine Hazards
Outlook (https://ocean.weather.gov/week2/). This webpage displays
these
wind speed and wave height probabilities in percent of sustained
(one-
minute average) surface (10-meter) wind speeds that are equal to or
exceeding 34 knots (kt) (39 miles per hour [mph]), 48 kt (55 mph),
and 64
kt (74 mph). These values equal the respective thresholds for gale-,
storm-, and hurricane-force winds.

In addition, the experimental graphics display probabilities in
percent of
significant wave height equal to or exceeding 4 meters (m), 6m, 9m,
and
14m. These probabilities are based on the operational Global Ensemble
Forecast System (GEFS), validated and calibrated for hazardous
forecast
conditions. The coverage area is from approximately 20 south latitude
to 80
north latitude, and from 0 longitude to approximately 140 east
longitude.
During the tropical cyclone season from June through November, the
southern
extent of the coverage area will be 30 north latitude, while research
continues to improve probabilities that may include tropical systems.

In addition to the graphics, a Product Description Document outlining
the
key elements of the products is available at:

https://nsdesk.servicenowservices.com/api/g_noa/nwspc/res2/1583d5a887
ec6a904b0fa8a60cbb355f

Feedback and input on the Week Two Marine Wind Speed and Wave
Height Probabilities graphics can be submitted at the following
link:

https://ocean.weather.gov/survey-week2/

Additional comments may be sent to:

Darin Figurskey
Ocean Forecast Branch Chief
NWS Ocean Prediction Center
College Park, MD
darin.figurskey@noaa.gov

and/or

Melinda Bailey
NWS Marine Program Manager
NWS Headquarters
Silver Spring, MD
melinda.bailey@noaa.gov

National Public Information Statements are online at:

https://www.weather.gov/notification/