National Weather Service United States Department of Commerce

Severe Storms in the Upper Midwest and Northern Plains Saturday; Increasing Heat Across the South

Scattered severe thunderstorms capable of producing damaging winds, large to very large hail and a couple of tornadoes will be possible Saturday afternoon in the Upper Midwest and Great Plains. Stronger storms may produce heavy to excessive rainfall. Simmering heat will impact areas from the Southwest to the Gulf Coast and Southeast this weekend. Heat indices may exceed 100 degrees. Read More >

What does WMO Initiatives provide to you?


WIGOS Station Identifier (WSI) is used to register an observing station or platform in the OSCAR/Surface database.

WIGOS Focal Points for U.S.

Mr James O'SULLIVAN - Focal point - ( United States of America )

Washington RWC (Regional WIGOS Center)

RWCs play a critical role in advancing the implementation of WIGOS within their Region or subregion, providing regional coordination and technical support to Members.


OSCAR is WMO's global repository of surface and space observing system capabilities. OSCAR is a web-based tool in which metadata is registered, managed and archived. It records observing system requirements and allows critical reviews of how well actual capabilities address requirements.


Welcome to the WIGOS Data Quality Monitoring System (WDQMS) webtool.

IWXXM Format

IWXXM (ICAO Meteorological Information Exchange Model) is a format for reporting weather information in XML/GML. IWXXM includes XML/GML-based representations for products standardized in International Civil Aviation Organization (ICAO) Annex III and World Meteorological Organization (WMO) No.306 Manual.