Flash Flood Warning

Flash Flood Warning Can Get YOu Home Safely!

A Flash Flood Warning is issued when a flash flood is imminent or occurring in the warned area.

A flash flood is a sudden, violent flood after a heavy rain. Rainfall intensity and duration, topography, soil conditions, and ground cover contribute to flash flooding.

Most flash floods occur when there is a heavy amount of precipitation falling in an area and that water is then channeled through streams or narrow gullies. Flash floods may take minutes or hours to develop. It is possible to experience a flash flood without witnessing any rain. In this case, there would be heavy rain in areas upstream of your location. Flash Flood Alerts

There are two types of alerts for flash floods which are released by the National Weather Service. One is a flash flood watch, which means a flash flood could occur in the area. And the other is a flash flood warning, which means a flash flood is occurring or one will occur. A warning is issued when there are strong weather radar echoes for an area that is prone to flash flooding. If a warning is issued, evacuate quickly and move to higher ground. Do not try to drive through the flooded areas! If your vehicle does stall, get out immediately and move to higher ground!

Some things to be aware of when in a flash flood prone area:

be aware of any signs of heavy rain
if you see or hear rapid rising water get to high ground
do not attempt to cross the flowing water

Flash floods can also occur because of a dam or levee failure, or because of a sudden release of water held by an ice jam. The Weather Channel uses a red crawl with the text reading "Flash Flood Warning" on the top of the graphic and the warning message scrolling from right to left on the bottom of the graphic. In addition, some NWS offices have instituted an enhanced FF Warning called a Flash Flood Emergency, which indicates a severe flooding situation.

What to do after a flood?

Stay away from flood waters. The water may be contaminated by oil, gasoline or raw sewage. The water may also be electrically charged from underground or downed power lines.

Stay away from moving water. Moving water only six inches deep can sweep you off your feet.

Be aware of areas where flood waters have receded. Roads may have weakened and could collapse under the weight of a car.

Stay away from downed power lines and report them to the power company.

Stay away from disaster areas unless authorities ask for volunteers.

Continue listening to a battery-powered radio for information about where to get assistance for housing, clothing and food.

Consider your family's health and safety needs. Wash your hands frequently with soap and clean water if you come in contact with flood waters. Throw away food that has come in contact with flood waters. Listen for news reports to learn whether the community's water supply is safe to drink.

Contact your insurance agent.

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Example of a Flash Flood Warning and Emergency Warning

FLASH FLOOD WARNING KSC003-302230-

BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TOPEKA KS 1129 AM CDT SAT JUN 30 2007

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* FLASH FLOOD WARNING FOR... ANDERSON COUNTY IN EAST CENTRAL KANSAS...

* UNTIL 530 PM CDT SATURDAY

* AT 1129 AM CDT...THE PUBLIC REPORTED WATER FLOWING OVER A COUPLE OF PAVED ROADS NEAR WESTPHALIA. ANDERSON COUNTY EMERGENCY MANAGEMENT ALSO INDICATED THAT SEVERAL PAVED ROADS HAD WATER RISING AND APPROACHING ROADWAYS. DOPPLER RADAR INDICATED THAT ANOTHER BAND OF HEAVY RAINFALL WAS DEVELOPING AND TRAINING OVER ANDERSON COUNTY PRODUCING RAINFALL RATES UP TO ONE INCH PER HOUR. ENHANCED RAINFALL RATES WILL LIKELY BE ENOUGH TO BRING WATER OVER SEVERAL PAVED ROADS IN THE COUNTY

* LOCATIONS IMPACTED INCLUDE... HARRIS... GREELEY... GARNETT... WESTPHALIA...

RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TOPEKA.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST INFORMATION CONCERNING THE SEVERE WEATHER.

LAT...LON 3803 9551 3803 9507 3839 9506 3838 9550

Emergency

FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 210 PM CDT SAT JUN 30 2007

KSC003-302230- ANDERSON- 210 PM CDT SAT JUN 30 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR ANDERSON COUNTY...

.A FLASH FLOOD EMERGENCY FOR ANDERSON COUNTY...

AT 200 PM CDT...TRAINED WEATHER SPOTTERS AND PUBLIC REPORTED WIDESPREAD FLOODING OVER ANDERSON COUNTY. KNOWN WATER RESCUES ARE ONGOING WEST OF GARNETT. EMERGENCY CREWS ARE UNABLE TO FIND A ROUTE FROM WESTPHALIA TO GARNETT. NUMEROUS PAVED AND GRAVEL ROADS HAVE BEEN REPORTED TO BE UNDER WATER ACROSS THE COUNTY....SEVERAL AREAS 1 TO 2 FEET DEEP. MEASURED STORM TOTAL PRECIPITATION AMOUNTS RANGE FROM 14 TO 16 INCHES OF RAINFALL DURING THE PAST THREE DAYS. WITH ONGOING RAINFALL AMOUNTS ON THE ORDER OF 1 TO 2 INCHES PER HOUR...ANY ADDITIONAL RAINFALL WILL CONTINUE TO AGGRAVATE THE FLOODING SITUATION.

LOCATIONS IMPACTED INCLUDE... WESTPHALIA...COLONY...HARRIS...GREELEY AND GARNETT.

LAT...LON 3803 9551 3803 9507 3839 9506 3838 9550

BLAIR / CAVANAUGH

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