1. Real Time Flood Alert System (RTFAS) Néstor J. Rodríguez SoReL Lab. Recinto Universitario de Mayagüez Mayagüez, Puerto Rico

2. Existing Flood Alert System

3. Real Time Flood Alert System

4. USGS & Civil Defense Rainfall Data Collection Network 4 17 Basins 4 Over 120 data collection stations from USGS 4 34 data collection stations from CD 4 Five types of measurements Rainfall River discharge River level Lake level Lake discharge

5. La Plata Basin Stations Sensors 14 Rainfall sensors (RF1-RF14) 4 River level sensors (RL1-RL4 4 River discharge sensors (RD1-RD4) 2 Lake level sensors (LL1-LL2) 2 Lake discharge sensors (LD1-LD2)

6. Types of Independent Events RF- Rainfall Report RD- River Discharge Report RL- River Level Report LL- Lake Level Report LD- Lake Discharge Report RAD- Radar Detection NWS- National Weather Service Bulletin EIC- Emergency Information Center Report IR- Information Requests OE- Other Events

7. Types of Dependent Events for Water Company Procedures on La Plata Basin RFA- Rainfall Accumulation on a station MAJ- Majority of Stations within a range of rainfall accumulation HRD- High River Discharge HRL- High River Level HLL- High Lake Level RW- Risk Watch MR- Moderate Risk HR- High Risk EP- Event in Progress

8. List of Independent Events RF1-RF14 (rainfall sensors report) RL1-RL4 (river level sensors reports) RD1-RD4 (river discharge sensors reports) LL1-LL2 (lake level sensors reports) LD1-LD2 (lake discharge sensors reports) RAD1 (atmospheric system with potential intense, expanded or extended rainfall) RAD2 (atmospheric system with potential intense, expanded or extended rainfall has started) RAD3 (atmospheric system with intense, expanded or extended rainfall is in progress)

9. List of Independent Events (Cont.) NWS1 (rainfall watch) NWS2 (flash flood watch) NWS3 (rainfall warning) NWS4 (flash flood warning) NWS5 (rainfall in progress) EIC1 (atmospheric system with significant rainfall has been visually detected) EIC2 (start of significant rainfall has been confirmed) EIC3 (significant rainfall in progress has been confirmed) IR1 (information request) OE1(saturated soil)

10. List of Dependent Events RFA1- RFA14 (accumulation between.25 to.5 inches) RFA15-RF28 (accumulation of more than.5 inches) RFA29-RFA42 (accumulation between.5 to.75 inches) RFA43-RFA56 (accumulation of more than.75 inches) RFA57-RFA70 (accumulation between 2 to 3 inches) RFA71-RFA84 (accumulation of more than 3 inches) RFA85-RFA98 (accumulation between 3 to 4 inches) RFA99-RFA112 (accumulation of more than 4 inches) MAJ1 (majority of RFA1 through RFA14 take place) MAJ2 (majority of RFA29 through RFA42 take place) MAJ3 (majority of RF57 through RFA70 take place) MAJ4 (majority of RFA85 through RFA98 take place)

11. List of Dependent Events (Cont.) HRD1-HRD4 (RD > critical value) HRL1-HRL4 (RL > critical value) HLL1-HLL2 (LL > critical value) RW (Risk Watch) MR- (Moderate Risk) HR- (High Risk) EP- (Event in Progress)

12. RW Event NWS2 EIC2 RAD1 NWS1 RW

13. MR Event RAD2 NWS3 NWS4 EIC2 HRD1 HRD4 HLL1 HLL2 HRL1 HRL4 OE1 MR

14. HR Event RFA71 RFA84 MAJ1 MAJ3 RFA15 RFA28 HRD1 HRD4 HLL1 HLL2 HRL1 HRL4 OE1 HR NWS5 EIC3 RAD3

15. EP Event RFA43 RFA56 MAJ2 MAJ4 RFA99 RFA112 HRD1 HRD4 HLL1 HLL2 HRL1 HRL4 OE1 EP

16. MAJ2 Event RFA30 RFA42 MAJ2 RFA29 RF2 RF14 RF1

17. HRD, HRL & HLL Events HRD2 HRD4 HRD1 RD2 RD4 RD1 HRL2 HRL4 HRL1 RL2 RL4 RL1 HLL2 HLL1 LL2 LL1