FLOOD02417

• County: Statewide
• Basin: Statewide
• Title: Guidelines on Community Local Flood Warning and Response Systems
• Date: 8/1/1985
• Prepared For: US
• Prepared By: Hydrology Subcommittee
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

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Yellow Creek at U.S. 25E Bridge Flood Adviaory Table
Forecast is for the USGS gage near 25E bridge over Yellow Creek below Middlesboro
Flood of Record was 23.4 ft. on April 4, 1977
Wa ruing Stage is 16 ft. drainage area 61 sq. mi. Gage Datum 1097.99 ft. MSL
Flood Stage is 12.0 feet
Crest occurs about 6 hours after heavy rain ends.
Stage Disch. Average Basin Rainfall (inches)
Ft. 1000 CFS For Time Duration of Guidance used
4.0 0.1 0.1 0.2 0.2 0.3 0.4 0.5 0.7 1.0 1.2 1.4 1.7 2.0 2.3
5.0 0.3 0.1 0.2 0.3 0.4 0.6 0.8 1.1 1.4 1.6 1.9 2.4 2.9 3.3
6.0 0.6 0.2 0.3 0.4 0.5 0.8 1.1 1.4 1.8 2.1 2.5 3.0 3.6 4.1
7.0 0.9 0.4 0.5 0.6 0.7 1.1 1.3 1.7 2.2 2.6 3.1 3.6 4.1 4.6
8.0 1.2 0.5 0.6 0.8 1.0 1.4 1.6 2.1 2.5 3.0 3.5 4.0 4.5 5.1
9.0 1.6 0.7 0.9 1.0 1.2 1.7 2.0 2.5 3.0 3.5 3.9 4.4 4.9 5.5
10.0 2.1 0.9 1.2 1.3 1.5 2.0 2.5 2.9 3.4 3.9 4.4 4.9 5.3 5.9
11.0 2.6 1.1 1.3 1.5 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 5.7 6.2
VJ ----------------------------------------------------------------------------------------------
VJ
Flood
Index 12.0 3.2 1.4 1.6 1.8 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
-------------------------------------------------------------~--------------------------------
13.0 3.8 1.7 1.9 2.1 2.3 2.8 3.3 3.8 4.3 4.8 5.3 5.8 6.3 6.8
14.0 4.5 1.9 2.2 2.4 2.6 3.1 3.7 4.2 4.7 5.2 5.7 6.2 6.7 7.2
15.0 5.2 2.3 2.5 2.7 2.9 3.5 4.0 4.5 5.1 5.6 6.1 6.6 7.0 7.5
16.0 6.0 2.6 2.8 3.1 3.3 3.9 4.4 4.9 5.5 5.9 6.4 6.9 7.4 7.7
17.0 6.8 2.9 3.2 3.4 3.7 4.3 4.8 5.4 5.9 6.3 6.8 7.3 7.7 8.0
18.0 7.7 3.3 3.6 3.8 4.1 4.7 5.2 5.8 6.3 6.8 7.2 7.7 8.1 8.4
19.0 8.4 3.6 3.9 4.1 4.4 5.0 5.6 6.1 6.6 7.1 7.5 8.0 8.4 8.7
20.0 9.1 3.9 4.2 4.5 4.7 5.3 5.9 6.5 7.0 7.4 7.9 8.4 8.8 9.0
21.0 9.9 4.3 4.5 4.8 5.0 5.6 6.2 6.8 7.3 7.8 8.2 8.7 9.1 9.3
22.0 10.6 4.6 4.9 5.1 5.4 6.0 6.6 7.1 7.6 8.1 8.5 9.0 9.4 9.6
23.0 11.4 4.9 5.2 5.5 5.7 6.3 6.9 7.4 8.0 8.4 8.9 9.4 9.8 10.0
24.0 12.2 5.3 5.6 5.8 6.1 6.7 7.3 7.8 8.3 8.8 9.2 9.7 10.1 10.3
6 Hr. Unitgraph Peak Ordinate = 2320 CFS Flood Stage R.O. 1.38 in.
FIGURE 9 - SAMPLE FORECAST PROCEDURE FOR
MANUAL LOCAL FLOOD WARNING SYSTEMS