Regional headquarters meteorologist keeping track of aviation weather

Using a teletypewriter to transmit weather information

Advertising brochure for teletypewriter used by Weather Service

Signal Service telephone exchange Weather Service had moved to Agriculture Widespread telephone use was major step in communications revolution Helped spread word quicker of impending bad weather

Service C teletypewriter system

Service A teletypewriter system

Teletypewriters in action; transmitting and receiving weather data from the U.S.

Storm signals warning mariners in New York Harbor. The two flags in the center of the image are cautionary flags indicating strong offshore winds that could blow a vessel far from shore. In: "History of the Signal Service," 1884.

Signal flags used at Weather Bureau Display Stations. In: The Aims and Methods of Meteorological Work by Cleveland Abbe. In: Maryland Weather Service, Johns Hopkins Press, Baltimore, 1899. Vol I. Page 296.

Signal flags used at Weather Bureau Display Stations. In: The Aims and Methods of Meteorological Work by Cleveland Abbe. In: Maryland Weather Service, Johns Hopkins Press, Baltimore, 1899. Vol I. Page 296.

Storm signal In: The Climate and Weather of Baltimore by Oliver L. Fassig. In: Maryland Weather Service, Johns Hopkins Press, Baltimore, 1899. Vol. II. Page 304.

Weather Bureau Circular No. 1

"A Glass Weather Map of the United States Weather Bureau." In: "Our Weather" by Charles F. Talman, 1931. P. 224. Library Call Number MT151o.

"Weather forecasts for aviators" as bulletined at an airport station. Weather Bureau meteorologist preparing pilot briefing board at San Francisco. In: "The Realm of the Air" by Charles F. Talman, 1931. Library Call Number Library Call Number M/0030 T151r.

"A Weather Bureau Kiosk, in Union Square, San Francisco." In: "Meteorology" by Charles F. Talman, 1922. P. 320. Library Call Number M/0030 T151m.

A meteorologist at the console of the IBM 7090 electronic computer in the Joint Numerical Weather Prediction Unit. This computer was used to process weather data for short and long-range forecasts, analyses, and research.

View of the electronic computer complex at the National Meteorological Center.

Teletype operators at the U. S. Weather Bureau Communications Center.

Weather Bureau meteorologist reading a weather map hot off the facscimile machine.

Thomas D. Whitely inspecting facscimile map.

Thomas D. Whitely showing electronics racks of weather map facscimile machine.

Thomas D. Whitely working with electronic equipment.

Messenger boy Thomas D. Whitely ready to hurry to newspaper offices and radio stations with copy of latest forecast. Foreman John G. Strobel passing forecast to Whitely. In: The Sunday Star, Washington, D.C. Gravure Section. October 31, 1937.

Mimeographing copies of the forecast to pass on to bicycle messenger Thomas D. Whitely for carrying on to newspapers and radio stations. In: The Sunday Star, Washington, D.C. Gravure Section. October 31, 1937.

Early weather map published in: "Les Bases de la Meteorologie Dynamique" by M. le Dr. H. Hildebrand Hildebrandsson et M. Leon Teisserenc de Bort. Published 1900. Volume 2. Library Call No. M/0440 H642. Although published in 1900, the map displayed weather conditions for 7 May, 1865.

Description not available.

Early diagram showing the evolution of cyclones and the polar front theory first advanced by J. Bjerknes. In: "Life Cycle of Cyclones and the Polar Front Theory of Atmospheric Circulation," p. 3, Geofysiske Publikationer, Vol III, No. 1, 1922.

The life cycle of cyclones as theorized by J. Bjerknes in: "Life Cycle of Cyclones and the Polar Front Theory of Atmospheric Circulation," p. 5, Geofysiske Publikationer, Vol III, No. 1, 1922.

The two kinds of occlusions seen in cross-section as shown by J. Bjerknes in: "Life Cycle of Cyclones and the Polar Front Theory of Atmospheric Circulation," p. 8, Geofysiske Publikationer, Vol III, No. 1, 1922.

The polar front through a series of cyclones as shown by J. Bjerknes in: "Life Cycle of Cyclones and the Polar Front Theory of Atmospheric Circulation," p. 11, Geofysiske Publikationer, Vol III, No. 1, 1922.

Early Weather Bureau logo.

The snow brought joy to some. The "Knickerbocker" snowstorm. 97 were killed in this storm and over 200 injured, the majority in the Knicker bocker Theater.

The snow was a trifle too much for the dinky sweepers. The "Knickerbocker" snowstorm. 97 were killed in this storm and over 200 injured, the majority in the Knickerbocker Theater.

A police officer directs traffic during the "Knickerbocker" snowstorm. 97 were killed in this storm and over 200 injured, the majority in the Knicker bocker Theater.

In front of the Knickerbocker Theater immediately after it collapsed. Handwritten note below indicates that it was probably the following night. 96 were killed and 125 injured in the collapse of the theater. One other man froze to death in the storm.

Crowds watching the work of rescue at the Knickerbocker Theater. 96 were killed and 125 injured in the collapse of the theater. One other man froze to death in the storm.

View of the interior of the Knickerbocker Theater after the last body had been removed. 96 were killed and 125 injured in the collapse of the theater. One other man froze to death in the storm.

Outside walls of Knickerbocker Theater following collapse of interior. 96 were killed and 125 injured in the collapse of the theater. One other man froze to death in the storm.

Sketch of Knickerbocker Theater prior to collapse. Hand-written note below caption says, "Wholly inaccurate picture. Compare photograph on preceding page. " 96 were killed and 125 injured in the collapse of the theater. One other man froze to death in the storm.

Cover of "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Rescuing a motor car from burial in the snow on a Long Island Highway. One kind of horsepower providing assistance to another kind. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Pennsylvania's plan is to clear a generous width. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Clearing snow from 5th Avenue, New York City. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

An example of slopes in an area of high winds which can cause drifting. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Drifts like these increase the cost of snow removal. Prevention is the economical way. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Snow fence, properly placed, holds back the drifts from the highway, as shown here. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

One of the drift-breeding locations which led Pennsylvania to invest in a million feet of snow fence. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.

Philadelphia Wilmington bus stalled in the evening snow. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926.

Fifth Avenue bus in difficulties. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926.

When the wheels stop, the revenue stops. Contractors find it pays to equip trucks with snow plows and keep the wheels moving. Note open cab and chains on rear tires. In: "Handbook of Snow Removal" by Good Roads Machinery, Inc. 1926. Library Call No. M 1270 G646.