The National Weather Service (NWS) confirmed that two Fridays broke through parts of South Dakota, Minnesota, Wisconsin, Iowa and Michigan on Friday.
The first derecho, associated with a severe weather outbreak on Friday, in eastern Minnesota-center, began to produce harmful winds and medium-sized hail before south-east racing through Wisconsin, across Lake Michigan and eventually dying 490 miles later. to Michigan.
The second derecho began in the middle of South Dakota late Friday night and blew it through southern Minnesota and into Wisconsin and Michigan. The line of evil storms lasted 860 miles incredible.
What is the heck to derecho? It is actually a long-term line of severe storms. This is the official report from NWS:
"A derecho is a widespread, long-stay wind storm (similar to" deh-REY-cho ") which is associated with a band of showers or thunderstorms, as a result the term" direct-line wind damage "is sometimes used. to describe derecho damage. If wind damage exceeds 240 miles (by 400 kilometers) and includes at least 58 mph wind speeds (93 km / h) or more for the duration. most of its length, then the incident can be classified as derecho. "
This is awesome view of satellite images the first derecho.
Friday night showed a few confirmed dornadoes in Polk and Barron counties in west Wisconsin.
The first tornado struck down about three miles northwest of Lake Turtle, and the second twister fell three miles east / north-east of Lake Turtle.
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Assessments of storm damages showed that the direct direct winds reached a maximum of about 90 mph, with a weather station in Polk County (Cushing, Wisconsin) recording a continuous 73 mph wind for five consecutive minutes.
Further east into Wisconsin, the storm was even more powerful. This is the report from NWS in Green Bay.
"Many thousands of trees were hung or surrendered, resulting in damage to many houses and houses. The most severe damage may be 15 miles wide and more than 25 miles. "
The radar repeats are impressive, and in some respects most of the two derechos went around the metro area of Twin Cities, although heavy rain and some tree reports were reported down from high winds on Saturday.
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