575  
FGUS51 KRHA 240115  
RVFPOT  
 
RIVER STAGE FORECAST  
NATIONAL WEATHER SERVICE  
MIDDLE ATLANTIC RIVER FORECAST CENTER, STATE COLLEGE, PA  
0914 PM EDT SAT OCT 23 2021  
:  
: POTOMAC RIVER FORECASTS FOR WASHINGTON D.C.  
:  
:--------------------------------------------------------------------  
:GEORGETOWN/WISCONSIN AVENUE - TIDAL POTOMAC RIVER  
:CS=5.5, FS=6.0, MODERATE FS=7.0, MAJOR FS=10.0  
:  
.ER GTND2 211024 Z DC2110240114/DH01/HMIFF/DIH1  
.E1 4.20/4.43/4.43/4.17/3.54/2.82/2.33/2.07/  
.E2 1.94/2.00/2.43/3.28/3.94/4.27/4.36/4.20/  
.E3 3.81/3.25/2.62/2.17/2.00/2.13/2.69/3.58/  
.E4 4.30/4.66/4.79/4.76/4.36/3.74/3.08/2.59/  
.E5 2.43/2.36/2.46/2.99/3.77/4.33/4.59/4.59/  
.E6 4.27/3.74/3.12/2.62/2.33/2.20/2.39/3.05/  
.E7 3.87/4.49/4.79/4.86/4.69/4.23/3.58/2.92/  
.E8 2.53/2.36/2.30/2.49/2.99/3.61/4.10/4.30/  
.E9 4.23/3.87/3.31/2.69/2.23/1.97/1.90/2.17  
:--------------------------------------------------------------------  
:SOUTHWEST WATERFRONT - TIDAL WASHINGTON CHANNEL  
:CS=3.7, FS=4.2 MODERATE FS=5.3 MAJOR FS=7.0  
:  
.ER WASD2 211024 Z DC2110240114/DH01/HMIFF/DIH1  
.E1 3.25/3.51/3.54/3.31/2.72/2.03/1.54/1.28/  
.E2 1.15/1.21/1.67/2.49/3.15/3.48/3.58/3.38/  
.E3 3.02/2.46/1.84/1.41/1.25/1.38/1.94/2.79/  
.E4 3.48/3.87/4.00/3.94/3.58/2.92/2.30/1.84/  
.E5 1.64/1.57/1.71/2.23/2.99/3.54/3.81/3.81/  
.E6 3.44/2.92/2.33/1.84/1.54/1.44/1.64/2.30/  
.E7 3.08/3.71/4.00/4.07/3.87/3.41/2.76/2.13/  
.E8 1.77/1.57/1.54/1.71/2.20/2.82/3.31/3.51/  
.E9 3.44/3.05/2.49/1.90/1.44/1.18/1.12/1.41  
:--------------------------------------------------------------------  
:ALEXANDRIA, VA - TIDAL POTOMAC RIVER  
:CS=2.5, FS=3.3, MODERATE FS=4.2, MAJOR FS=6.6  
:  
.ER AXTV2 211024 Z DC2110240114/DH01/HGIFF/DIH1  
.E1 2.23/2.39/2.33/1.97/1.28/0.62/0.16/-0.13/  
.E2 -0.23/-0.13/0.36/1.08/1.71/2.07/2.17/1.97/  
.E3 1.57/1.02/0.43/0.03/-0.13/0.00/0.59/1.38/  
.E4 2.07/2.46/2.59/2.53/2.13/1.51/0.89/0.46/  
.E5 0.26/0.20/0.33/0.85/1.57/2.13/2.39/2.36/  
.E6 2.03/1.51/0.92/0.46/0.16/0.07/0.30/0.92/  
.E7 1.67/2.26/2.59/2.66/2.46/2.00/1.35/0.75/  
.E8 0.36/0.16/0.16/0.36/0.85/1.41/1.87/2.10/  
.E9 2.00/1.64/1.08/0.49/0.07/-0.20/-0.23/0.03  
:--------------------------------------------------------------------  
COMMENT  
 
:CAUTION...THESE FORECASTS DO NOT FULLY ACCOUNT FOR THE EFFECTS OF  
:WIND DRIVEN STORM SURGE. FORECAST ERRORS OF TWO FEET OR MORE ARE  
:POSSIBLE DURING MAJOR SURGE EVENTS. OTHER SOURCES OF ERROR MAY  
:INCLUDE RAINFALL FORECAST UNCERTAINTIES AND HYDROLOGIC/HYDRAULIC  
:MODEL UNCERTAINTIES.  
 

 
MARFC  
:...END OF MESSAGE...  
NNNN  
 
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