Statement as of 11:09 PM CDT on September 01, 2014
... Flash Flood Watch remains in effect until 7 am CDT Tuesday...
The Flash Flood Watch continues for
* portions of Illinois and Missouri... including the following counties... in Illinois... Bond IL... Calhoun IL... Clinton IL... Fayette IL... Greene IL... Jersey IL... Macoupin IL... Madison IL... Marion IL... Monroe IL... Montgomery IL... Randolph IL... St. Clair IL and Washington IL. In Missouri... Callaway MO... Cole MO... Crawford MO... Franklin MO... Gasconade MO... Iron MO... Jefferson MO... Lincoln MO... Madison MO... Moniteau MO... Montgomery MO... Osage MO... Pike MO... Reynolds MO... St. Charles MO... St. Francois MO... St. Louis city MO... St. Louis MO... Ste. Genevieve MO... Warren MO and Washington MO.
* Until 7 am CDT Tuesday
* thunderstorms producing heavy rainfall are expected to train over the area tonight. Widespread rainfall amounts between 1.5 and 2 inches are expected... with localized rainfalls of 3 to 4 inches. Areas along and south of the Interstate 44 corridor in Missouri... and along and south of the Interstate 70 corridor in Illinois are expected to get the heaviest amounts of rain tonight.
* Heavy rainfall will result in flooding of low lying or poor drainage areas... and ultimately dangerous flash flooding on smaller creeks and streams. Significant rises on larger streams and rivers will also be possible.
A Flash Flood Watch means that flash flooding is possible but not imminent in the watch area. People in the watch area should be aware of the possibility of heavy rainfall and flash flooding. Check your preparedness requirements... especially if you live in flood prone areas. Stay informed... and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued.
Public Information Statement
Statement as of 6:10 PM CDT on September 1, 2014
... 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 measures 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 on 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 one inch or larger diameter size hail and/or wind gusts of 58 miles an hour or greater. A severe thunderstorm can also produce deadly lightning and very heavy rain which can lead to flash flooding.
Remember, with any severe thunderstorm there is always the possibility of tornadoes.
Find the Weather for any City, State or ZIP Code, or Airport Code or Country:
Custom Weather Services
In addition to this website, we provide a number of free and professional weather services.