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Daily Reservoir Report and Forecast

 

DAILY RESERVOIR SUMMARY FOR: 3-Aug-15
   FLOOD     ACTUAL FOR TODAY
 STORAGE                  POOL ELEVATIONS (NAVD88)          7AM        7AM
 CAPACITY     MINIMUM     WINTER    SUMMER          FULL         POOL  OUTFLOW
RESERVOIR     USED         POOL   MAX POOL   MAX POOL          POOL         ELEV        CFS
Allegheny 0% 1239.4 1306.5 1327.5 1364.5 1327.73 1290
Tionesta 2% 1084.6 1169.6 1088.86 180
Union City 0% 1209.7     1277.7 1213.88 56
Woodcock 1% 1161.9 1164.8 1180.4 1208.4 1180.65 15
East Branch 11% 1554.8 1622.8 1649.8 1684.8 1642.27 200
Mahoning 1% 1074.3   1097.1 1161.1 1098.41 90
Crooked Creek 2% 837.4 917.4 843.40 80
Conemaugh 1% 899.2 974.2 902.68 560
Loyalhanna 3% 909.5     974.5 922.53 130
Stonewall Jackson 0% 1037.8 1067.5 1072.5 1081.3 1071.84 100
Tygart 0% 1009.5 1039.5 1093.5 1166.5 1093.24 410
Youghiogheny 0% 1343.4 1418.4 1438.4 1469.4 1437.00 620
Michael J. Kirwan 0% 950.5 980.6 985.1 992.6 984.65 65
Berlin 30% 979.3 1015.9 1024.0 1031.3 1023.60 225
Lake Milton 20% 929.4 939.4 947.4 950.4 948.06 210
Mosquito 0% 880.3 899.2 900.7 903.3 900.25 150
Shenango 0% 883.7 886.7 894.7 917.7 894.78 295
                      FORECAST FOR THE FOLLOWING THREE DAYS
  4-Aug-15   5-Aug-15   6-Aug-15
         7AM        7AM          7AM        7AM          7AM        7AM
        POOL  OUTFLOW         POOL  OUTFLOW         POOL  OUTFLOW
RESERVOIR           ELEV        CFS         ELEV        CFS         ELEV        CFS
Allegheny   1327.6 1290 1327.6 1120 1327.6 760
Tionesta   1089.0 140 1089.1 140 1089.2 140
Union City   1213.8 51 1213.3 48 1212.5 46
Woodcock   1180.6 15 1180.5 15 1180.5 15
East Branch   1641.9 190 1641.5 190 1641.1 190
Mahoning   1098.6 90 1098.8 90 1098.9 90
Crooked Creek   843.4 80 843.3 80 843.3 80
Conemaugh   902.8 560 902.8 560 902.9 460
Loyalhanna   922.5 100 922.4 100 922.4 100
Stonewall Jackson   1071.8 100 1071.7 100 1071.6 100
Tygart   1093.0 410 1092.7 410 1092.4 410
Youghiogheny   1436.6 620 1436.3 620 1435.9 620
Michael J. Kirwan   984.6 65 984.6 65 984.5 65
Berlin   1023.5 260 1023.3 260 1023.1 260
Lake Milton   948.1 260 948.1 260 948.1 260
Mosquito   900.2 150 900.2 150 900.2 150
Shenango   894.7 295 894.7 220 894.7 220
  FLOOD STORAGE USED                  SNOW ON THE GROUND
District-wide 1.8%          SNOW     WATER
Allegheny Basin 1.4%          DEPTH   CONTENT
Monongahela Basin 0.0% BASIN        INCHES     INCHES
Beaver Basin 6.3% Upper Allegheny River 0.0 0.0
Lower Allegheny River 0.0 0.0
Upper Mon. River 0.0 0.0
Lower Mon. River 0.0 0.0
Beaver River 0.0 0.0
Ohio River 0.0 0.0

U.S. Army Corps of Engineers: http://www.usace.army.mil/

Pittsburgh District: http://www.lrp.usace.army.mil/

Water Management: http://www.lrp.usace.army.mil/Missions/WaterManagement.aspx

NOTES

This forecast represents our best estimate of reservoir project pool elevations and releases for the next three days.  In general, it assumes no significant rainfall during the forecast period.  Final decisions on all operations (changes in project release) are made on the day of the operation.  Future operations shown on this forecast are as expected, but not promised.

On the top panel, under "Pool Elevations" the following definitions apply:

  • Minumum Pool - the minimum pool elevation for the project.
  • Winter Max Pool - the maximum Winter Pool elevation for the project.
  • Summer Max Pool - the maximum Summer Pool elevation for the project.
  • Full Pool - the elevation of the pool at maximum flood control storage.

The Winter and Summer pool levels are part of the overall maximum conservation pool for each lake, which is the maximum level maintained at each lake throughout the year.  Conservation storage is the water in each lake below the Max Conservation Pool and above Minimum Pool.   Conservation storage is for a variety of purposes, varying from lake to lake, and can include purposes such as water quality control, fish and wildlife, navigation, water supply, recreation, etc.  Some lakes have no allocated conservation storage.  Max Conservation Pools are shown on the Reservoir Plots below.

"Flood Storage Capacity Used" is the amount of the lake's floodwater storage which is already filled.  The lake volume between Max Conservation Pool and Full Pool is the amount of "empty space" that is supposed to be kept available for storing floodwater.      

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This page updated daily by noon Eastern Time

LRP.WaterManagement@usace.army.mil