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File:Boundery waters Canadian Derecho radar image.png

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Boundery_waters_Canadian_Derecho_radar_image.png (600 × 402 pixels, file size: 438 KB, MIME type: image/png)

Summary

Description
English: The derecho-producing bow echo system, racing east southeastward at a speed of nearly 100 kph (62 mph), entered the Temiscamingue region of Quebec (QC) by late Sunday evening on July 4th (Fig 4). A gust of 100 kph (62 mph) was measured at Temiscaming, and a gust of 105 kph (65 mph) was measured at Angliers, with electrical power outages occurring in the region. There also was a tremendous amount of cloud-to-ground lightning associated with the bow echo thunderstorms, with up to 6000 strikes per hour
Français : Image radar et satellite du Derecho qui est passé du 4 au 5 juillet 1999 à la frontière canado-américaine. L'image montre la ligne orageuse entre 22h et minuit le 4 juillet alors qu'elle passait sur le Témiscamingue au Quéebec (Canada) et se dirigeait vers le Maine (États-Unis). Des rafales à 100 km/h furent mesurée au Témiscamingue à ce moment et le taux de foudre était de 6 000 éclairs à l'heure.
Date
Source http://www.spc.noaa.gov/misc/AbtDerechos/casepages/jul4-51999page.htm
Author Robert H. Johns and Jeffry S. Evans of the Storm Prediction Center modified Quebec Region Weather Prediction image

Licensing

Public domain
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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Captions

Radar image of a derecho-producing bow echo system on 4-5 July 1999.

Items portrayed in this file

depicts

5 July 1999

image/png

3a1ded4061878b7be0bb21f75881ed0ee1cb40c7

448,471 byte

402 pixel

600 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current03:20, 14 August 2011Thumbnail for version as of 03:20, 14 August 2011600 × 402 (438 KB)Pierre cb{{Information |Description ={{en|1=The derecho-producing bow echo system, racing east southeastward at a speed of nearly 100 kph (62 mph), entered the Temiscamingue region of Quebec (QC) by late Sunday evening on July 4th (Fig 4). A gust of 100 kph (62

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