490  
FGUS51 KRHA 221432  
RVFPOT  
 
RIVER STAGE FORECAST  
NATIONAL WEATHER SERVICE  
MIDDLE ATLANTIC RIVER FORECAST CENTER, STATE COLLEGE, PA  
0932 AM EST WED NOV 22 2017  
:  
: 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  
:  
.E GTND2 1122 Z DC1711221432/DH13/HMIFF/DIH1  
.E1 2.53/3.02/3.51/3.58/3.31/2.79/2.10/1.48/  
.E2 1.05/0.69/0.46/0.36/0.85/1.77/2.49/2.69/  
.E3 2.46/2.03/1.44/0.89/0.49/0.16/0.00/0.13/  
.E4 0.75/1.71/2.53/2.82/2.79/2.66/2.33/1.84/  
.E5 1.38/1.02/0.82/1.12/1.84/2.76/3.51/3.74/  
.E6 3.74/3.64/3.25/2.66/2.03/1.54/1.28/1.18/  
.E7 1.41/2.07/2.89/3.58/3.81/3.67/3.28/2.82/  
.E8 2.30/1.84/1.57/1.51/1.71/2.26/3.12/3.87/  
.E9 4.17/4.07/3.74/3.25/2.69/2.23/1.90/1.71  
:--------------------------------------------------------------------  
:SOUTHWEST WATERFRONT - TIDAL WASHINGTON CHANNEL  
:CS=3.7, FS=4.2 MODERATE FS=5.3 MAJOR FS=7.0  
:  
.E WASD2 1122 Z DC1711221432/DH13/HMIFF/DIH1  
.E1 1.44/2.03/2.53/2.59/2.33/1.80/1.15/0.52/  
.E2 0.13/-0.23/-0.46/-0.49/0.00/0.89/1.57/1.77/  
.E3 1.54/1.12/0.49/-0.03/-0.43/-0.75/-0.89/-0.75/  
.E4 -0.16/0.79/1.57/1.87/1.84/1.74/1.38/0.89/  
.E5 0.43/0.07/-0.10/0.20/0.92/1.80/2.53/2.79/  
.E6 2.79/2.66/2.26/1.67/1.05/0.59/0.33/0.26/  
.E7 0.49/1.12/1.97/2.62/2.85/2.69/2.30/1.84/  
.E8 1.31/0.85/0.59/0.56/0.75/1.31/2.13/2.89/  
.E9 3.18/3.08/2.72/2.23/1.67/1.25/0.92/0.72  
:--------------------------------------------------------------------  
:ALEXANDRIA, VA - TIDAL POTOMAC RIVER  
:CS=2.5, FS=3.1, MODERATE FS=4.5, MAJOR FS=6.6  
:  
.E AXTV2 1122 Z DC1711221432/DH13/HGIFF/DIH1  
.E1 0.23/0.69/1.12/1.18/0.92/0.36/-0.30/-0.89/  
.E2 -1.31/-1.67/-1.90/-1.90/-1.38/-0.56/0.07/0.30/  
.E3 0.07/-0.39/-0.95/-1.48/-1.87/-2.17/-2.30/-2.13/  
.E4 -1.54/-0.62/0.10/0.39/0.43/0.26/-0.07/-0.56/  
.E5 -0.98/-1.35/-1.44/-1.15/-0.46/0.43/1.08/1.35/  
.E6 1.38/1.25/0.82/0.23/-0.36/-0.79/-1.05/-1.12/  
.E7 -0.89/-0.23/0.56/1.18/1.41/1.25/0.89/0.43/  
.E8 -0.10/-0.52/-0.79/-0.82/-0.59/-0.03/0.79/1.48/  
.E9 1.77/1.67/1.35/0.82/0.30/-0.13/-0.46/-0.66  
:--------------------------------------------------------------------  
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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