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Cerrejón Chooses Automated Weather Observation Systems (AWOS) from All Weather, Inc. for Coal Mining Operations

Advanced AWOS combines high reliability meteorological sensors with state-of-the-art communications technologies for even most challenging environments

AWOS Used for Cerrejón Coal Mining OperationsSacramento, CA (October 4, 2004) — All Weather, Inc., a leading manufacturer of high accuracy, high dependability weather information systems and meteorological sensors, today announced that Cerrejón LLC, an integrated coal mining operation in Columbia, South America, will take delivery of two Series 900 Automated Weather Observation Systems (AWOS). Located at Cerrejón's Maicao "La Mina" and Portete "Puerto Bolivar" airports, the systems will measure and report wind speed, wind gusts, wind direction, relative humidity, temperature, visibility, precipitation, altimeter setting, density altitude, cloud height and sky condition, present weather, and lightning-all essential data for the safe and economic operation of the airfields. Up-to-the-minute information will be provided in one of two ways. A voice-synthesized report will be transmitted via VHF radio with a discrete frequency to ensure approaching pilots have the exact weather conditions. In addition, voice data reports will be made available by telephone so that current airport conditions can be obtained from anywhere prior to departure.

"Cerrejón is dedicated to the exploration, production, transportation, and shipment of high grade coal located in mines throughout a large portion of northern Colombia," stated Captain Saludos Cesar Vesga of Cerrejón LLC. "After careful consideration, we chose All Weather because of the accuracy and reliability of their equipment as well as the hands-on experience of their team in Columbia. The vagaries of the environment can make or break the success of a new installation. All Weather's partnership with local integration firm and AWI representative Acerta made this the right choice."

AWOS: Automated Weather Observation System
All Weather's Series 900 AWOS is based on state-of-the-art sensor technology and a powerful, microprocessor-based computer system that collects and processes large amounts of environmental data. Whether the concerns are precipitation, wind gusts, temperature, present weather, or lightning, the end result is a cost-effective system that provides the power and versatility needed to stay on top of rapidly changing weather. The AWOS is expandable, easy to install, and easy to maintain.

The Series 900 AWOS features All Weather's 8364-E Dual Technology Visibility Sensor, a patented four-head design that ensures accurate measurements independent of the effects of the environment. The 8364-E combines the transmissiometer's ability to measure direct transmissions in harsh conditions and the forward scatter sensor's ability to measure varying density and scatter functions. Unlike traditional two head visibility sensors, the AWI 8364-E can measure fog, snow, rain, haze, smoke, dust, and sand.

AWI's AWOS system meets the stringent standards of the major international aviation agencies, including the Federal Aviation Administration (FAA), International Civil Aviation Organization (ICAO), World Meteorological Organization (WMO), and Transport Canada. All systems measure and report essential weather information and include full Remote Maintenance Monitoring capabilities to ensure continuous monitoring.

About All Weather Inc.
All Weather, Inc. (AWI) is a leading developer of high accuracy, high dependability weather information systems that help users minimize risks in an unpredictable world. The company provides AWOS aviation weather systems, air traffic control display systems, as well as a wide range of high accuracy meteorological sensors and systems, including laser ceilometers, runway visual range systems, lightning detection sensors, and a variety of other meteorological sensors. All Weather, Inc. is the preferred development partner of the FAA. The company's ASOS, AWOS, and AWSS systems meet the stringent standards of the International Civil Aviation Organization (ICAO), the World Meteorological Organization (WMO), and Transport Canada. AWI has installed over 1700 high-end automated weather systems around the globe, working with such leading authorities as the U.S. National Weather Service, ExxonMobil, Cerrejón Coal, and INFRAERO (Brazil). For more information, see www.allweatherinc.com.

For further information, contact:
Ralph Petragnani, Director of Marketing & Sales
All Weather, Inc.
1165 National Drive, Sacramento, CA 95834 USA
+1 916.928.1000, Fax: +1 916.928.1165
Email: rpetragnani@allweatherinc.com
Web: www.allweatherinc.com
PR Office:
Shari Worthington, President
Telesian Technology Inc.
49 Midgley Lane, Worcester, MA 01604 USA
+1 508.755.5242, Fax: +1 508.795.1636
Email: sharilee@telesian.com

© 2004 All Weather Inc. All rights reserved.

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