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BULLETIN
Post-Tropical Cyclone Cristobal Advisory Number  34
NWS Weather Prediction Center College Park MD   AL032020
1000 PM CDT Tue Jun 09 2020
 
...CRISTOBAL BECOMES EXTRATROPICAL...
...WIDESPREAD HEAVY RAINFALL AFFECTING THE WESTERN GREAT LAKES
TONIGHT...
 
 
SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...43.5N 90.4W
ABOUT 180 MI...330 KM NW OF CHICAGO ILLINOIS
ABOUT 60 MI...110 KM NW OF MADISON WISCONSIN
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 31 MPH...50 KM/H
MINIMUM CENTRAL PRESSURE...986 MB...29.21 INCHES
 
 
WATCHES AND WARNINGS
--------------------
A Flash Flood Watch is in effect for...
* Parts of the Midwest and western Great Lakes
 
Wind Advisories are in effect for...
* Chicagoland and areas adjacent to Lakes Michigan and Superior
 
A Gale Warning is in effect for...
* Lake Michigan
* Eastern Lake Superior
* Portions of Lake Huron
 
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1000 PM CDT (0300 UTC), the center of Post-Tropical Cyclone
Cristobal was located near latitude 43.5 North, longitude 90.4 West.
The post-tropical cyclone is moving toward the north-northeast near
31 mph (50 km/h) and this motion is expected to continue as 
Cristobal tracks toward Lake Superior and then into Ontario, 
Canada by Wednesday morning.
 
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Some further strengthening is possible as Cristobal fully 
transitions to an extratropical low.
 
The estimated minimum central pressure is 989 mb (29.21 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Winds gusting over 45 mph are expected tonight and Wednesday
over Chicagoland and areas adjacent to the western Great Lakes.
 
RAINFALL: Cristobal will produce storm total rain accumulations
of 2 to 4 inches, with isolated maximum amounts of 5 inches from
southeast Minnesota through much of Wisconsin, the Upper Peninsula
of Michigan, and parts of lower Michigan. This rainfall may produce
flash flooding, and is forecast to produce new and renewed minor to
moderate river flooding across portions of the mid to upper
Mississippi Valleys.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 400 AM CDT.
 
$$
Forecaster Burke
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  10/0300Z 43.8N  90.0W   30 KT  35 MPH...POST-TROPICAL
 12H  10/1200Z 47.3N  87.3W   35 KT  40 MPH...POST-TROP/REMNT LOW
 24H  11/0000Z 51.3N  82.7W   35 KT  40 MPH...POST-TROP/REMNT LOW
 36H  11/1200Z...DISSIPATED
 
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