Tomorrow is forecast to be Much Cooler than today.
Nowcast as of 7:19 PM CDT on May 10, 2008
Now
Scattered showers and thunderstorms will continue to develop and move east across the area this evening ahead of a strong cold front. Through 9 PM...expect brief heavy rainfall...small hail and gusty winds to 45 mph with the stronger storms. In the meantime...several large severe storms over southern Missouri will continue to move east and affect southeast Missouri and southern Illinois. With these storms expect large hail...damaging winds and a few tornadoes possible.
Forecast for Marion
Updated: 7:19 PM CDT on May 10, 2008
Wind Advisory in effect from 4 am to 7 PM CDT Sunday...
Tonight
Windy. Occasional showers and thunderstorms. Storms may be severe. Low around 50. Southeast wind 10 to 20 mph in the evening shifting to the southwest with gusts to around 35 mph after midnight. Chance of rain near 100 percent.
Sunday
Windy...cooler. Showers likely. Near steady temperature in the lower 50s. Northwest wind 20 to 30 mph with gusts to around 40 mph. Chance of rain 70 percent.
Breezy. Mostly cloudy until early morning then becoming partly cloudy. Low in the mid 40s. Northwest wind 15 to 25 mph in the evening decreasing to 10 to 15 mph after midnight.
Monday
Warmer. Partly cloudy. High around 70. North wind around 10 mph.
... Wind Advisory in effect from 4 am to 7 PM CDT Sunday...
The National Weather Service in St Louis has issued a Wind Advisory... which is in effect from 4 am to 7 PM CDT Sunday.
Very strong northwest winds will develop overnight as a low pressure system moves across the region and intensifies. Sustained wind speeds will average around 30 mph with gusts of 45 to 50 mph. These intense winds will persist on Sunday... eventually diminishing early Sunday evening.
A Wind Advisory is issued when sustained winds are forecast to be 30 to 39 mph or gusts will range between 45 and 57 mph. Winds of these magnitudes may cause minor property damage without extra precautions. Motorists in high profile vehicles should use caution until the winds subside. People traveling on north to south oriented roadways will experience the greatest traveling difficulties from the strong winds.
Public Information Statement
Statement as of 7:14 PM CDT on May 10, 2008
... Safety rules for severe thunderstorms...
A Severe Thunderstorm Watch has been issued by the National Weather Service. In the interest of public safety... the following safety rules are provided. Public and commercial broadcast stations serving the affected area are asked to broadcast these safety messages frequently while the watch is in effect.
A Severe Thunderstorm Watch means conditions are favorable for the development of severe thunderstorms in and close to the watch area. If you are in the watch area... keep up to date of the latest weather information. These storms can develop rapidly so there may be occasions when advance warning is not possible.
A Severe Thunderstorm Warning means a severe thunderstorm has been observed or indicated by radar. If you are in the path or near the storm... take immediate actions to protect life and property. Follow these safety rules:
1) in open country... you should seek shelter and avoid trees which can be targets for lightning. If there is no shelter... go to a ditch or culvert but beware of rising water which can cause flooding.
2) when indoors... stay away from outside walls and windows and go to an interior room on the lowest level. Avoid using electrical appliances while the storm is nearby.
3) in Mobile homes... you should leave and seek nearby safe shelter.
4) if swimming or on a boat... you should get to shore as quickly as possible and find shelter.
A thunderstorm is considered severe when it contains 3/4 inch or larger diameter size hail and/or wind gusts of 58 miles an hour or greater. A severe thunderstorm also produces deadly lightning and very heavy rain which can lead to flash flooding.
Remember... with any severe thunderstorm there is always the possibility of tornadoes.
