Frequently Asked Questions (FAQs)

1. Is my property in a flood zone?

2. Why does the application display the message "Unable to display MapService"?

3. Why does the application display the message "Response from previous request(s) not received"?

4. Why do I see a blank screen when I start the application?

5. What is a FEMA panel?

6. What is a LOMR?

7. What is an FTRS?

Answers
1. Is my property in a flood zone?


To determine if your property is located in a flood zone:
  1. Search for your property using the Address Query or Parcel Query button.
  2. Once your property is displayed, take a look at the colors on the map. If a blue cross-hatched area crosses any of your property lines, your property is in a flood zone. If no blue cross-hatched areas appear near your property, your property is not in a flood zone.
Take a look at the picture below for examples of properties that are in a flood zone or not in a flood zone.



2. Why does the application display the message "Unable to display MapService"?
This message will appear when you move too quickly through the application, i.e. click on another function before the application has had a chance to set everything up from your last click. Since the application is communicating back and forth with the server almost constantly, it is important to let it finish what it is doing before you try to move to another function. For example, if you Zoom In to an area, then quickly try to Zoom In to another area, this message will appear.

3. Why does the application display the message "Response from previous request(s) not received"?
This message will appear when you move too quickly through the application, i.e. click on another function before the application has had a chance to set everything up from your last click. Since the application is communicating back and forth with the server almost constantly, it is important to let it finish what it is doing before you try to move to another function. For example, if you Zoom In to an area, then quickly try to Zoom In to another area, this message will appear.

4. Why do I see a blank screen when I start the application?
You may be using an Internet browser that is older than required to use the Flood Zone Application. For example, both Netscape Navigator 4.08 and Netscape Navigator 4.7 will only display a blank screen when running the application. Upgrading your browser to a later version may resolve this issue. Your Internet Service Provider (ISP) may also be blocking port 5151 which is required to view the application. Submit a request to your ISP to open access to port 5151.

Note: Internet Explorer version 5 or greater is recommended to use the Flood Zone Application.

5. What is a FEMA panel?
A FEMA panel is an area assigned a number by the Federal Emergency Management Agency. Assigning numbers to a specific area makes it easier to break down a geographic area and gives FEMA and end users a common frame of reference when discussing flood zones and LOMRs.

6. What is a LOMR?
LOMR stands for Letter Of Map Revision. FEMA (the Federal Emergency Management Agency) surveys areas and creates maps that reflect flood zones within those areas. If, at a later date, the geographic region changes in such a way as to reduce or remove a flood zone, such as when channels and basins are constructed in the area, FEMA may create a LOMR. The LOMR details the changes to a map that remove certain areas from a flood zone.

7. What is an FTRS?
FTRS stands for Flood Threat Recognition System, which is a system composed of research stations and other facilities to track the possibility of a flood. We use the acronym FTRS in the Flood Zone Application to refer specifically to the meteorological stations that are installed around Clark County.

Three types of stations are currently in use, one that tracks water level, one that tracks precipitation, and one that tracks wind, rain, humidity and temperature. These stations are set up in various places around Clark County. The Regional Flood Control District (as well as various other local entities) use these stations to determine if a flood threat exists in a certain area.