SEVERE DERECHO, wind gusts 80-120 mph expected
Posted 21 May 2004 - 01:53 PM
Winds were strong enough to flip over cars and toss them around in Indiana. That maybe 110-120 mph downbursts. Detroit Intl Airport received 60 mph gusts.
This type of storm is known as a derecho where the wind damage is widespread and very long lasting. The fast forward eastward motion of these storms makes it even more dangerous. Wind gusts of 80-120 mph can be expected in the path of this storm from Toledo to Cleveland. This maybe one of the more widespread outbreaks of the year.
50 fatalities is the average count per year courtesy of derechos. Do not go outside in this situation.
Posted 21 May 2004 - 02:57 PM
Midday shot from MI, looks nasty.
"This squall line roared through the Detroit Metro area. A wind gust of 95 mph was recorded in Ann Arbor, and at Detroit Metro airport the wind officially gusted to 70 mph. In a town near me, hail covered the ground to the depth of 1", looking like a snowfall. Here we had pea/small marble hail and 0.37" of rain in 10 minutes. The sky grew a sick shade of green and unfortunately I was having problems with the camera so pics are blurry."
Posted 21 May 2004 - 03:05 PM
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 235
NWS STORM PREDICTION CENTER NORMAN OK
315 PM EDT FRI MAY 21 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN NEW YORK
WESTERN AND CENTRAL PENNSYLVANIA
NORTHERN PANHANDLE OF WEST VIRGINIA
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 315 PM UNTIL 900
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
EXTREMELY DAMAGING THUNDERSTORM WIND GUSTS TO 80 MPH...LARGE HAIL
TO 2 INCHES IN DIAMETER...AND DANGEROUS LIGHTNING ARE POSSIBLE IN
DISCUSSION...INTENSE BOW ECHO OVER WESTERN LAKE ERIE WILL LIKELY
MAINTAIN INTENSITY AND TRACK ACROSS NORTHEAST OH INTO NORTHWEST PA.
THESE STORMS WILL HAVE THE POTENTIAL FOR SIGNIFICANT WIND
DAMAGE...AS WELL AS LARGE HAIL. OTHER SCATTERED SEVERE STORMS MAY
DEVELOP SOUTH OF BOW FROM CENTRAL OH INTO SOUTHWEST PA...WITH LARGE
HAIL THE MAIN THREAT.
Posted 21 May 2004 - 03:19 PM
Posted 21 May 2004 - 03:20 PM
Posted 21 May 2004 - 03:24 PM
Posted 21 May 2004 - 03:46 PM
Here is a link to Cod's Satellite animation of this event, notice the faint line in front of the Bow echo, I highlighted the the current pic below.
Posted 21 May 2004 - 11:38 PM
Posted 22 May 2004 - 07:15 AM
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