Nassawango Creek near Snow Hill
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Upstream gauge unavailableDownstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 07/05/2025 8:30 PM EDTCATEGORY STAGE Major Flooding 8.5 ft Moderate Flooding 7.5 ft Minor Flooding 6.5 ft Action 6 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 12.7 - River stage sensor operating limit
- 8.5 - Snow Hill Road, Maryland Highway 12, becomes impassable at Nassawango Creek due to high water over the bridge. Stage of the 50 year flood.
- 8 - Stage of the 25 year flood.
- 7.5 - Numerous road closures due to flooding, including Mount Olive Church Road, Red House Road, Creek Road and Nassawango Road. Shallow flooding begins on Snow Hill Road, Maryland Highway 12, just north of town.
- 7 - Mount Olive Church Road, Red House Road and Creek Road become impassable due to high water. Water begins to flow across Nassawango Road, 1 mile upstream of the Pocomoke River.
- 6.5 - Water begins to flow across Mount Olive Church Road, Red House Road and Creek Road.
- 6 - Water begins to encroach on Mount Olive Church Road, Red House Road and Creek Road.
Gauge Info
Coordinates | 38.2289, -75.4714 |
RFC | MARFC |
State | MD |
WFO | AKQ |
County | Worcester |
Data Provider(s) | |
US Geological Survey | USGS--Water Resources of the United States |
USGS | 01485500 |
Gauge Location
Recent Crests
1. | 5.91 ft | on 03-18-2025 | (P) |
2. | 6.55 ft | on 03-29-2024 | (P) |
3. | 7.28 ft | on 03-07-2024 | (P) |
4. | 7.28 ft | on 03-07-2024 | (P) |
5. | 6.07 ft | on 03-03-2024 | (P) |
Recent Crests
1. | 5.91 ft | on 03-18-2025 | (P) |
2. | 6.55 ft | on 03-29-2024 | (P) |
3. | 7.28 ft | on 03-07-2024 | (P) |
4. | 7.28 ft | on 03-07-2024 | (P) |
5. | 6.07 ft | on 03-03-2024 | (P) |
6. | 7.02 ft | on 01-10-2024 | (P) |
7. | 3.63 ft | on 12-30-2023 | (P) |
8. | 7.71 ft | on 12-18-2023 | (P) |
9. | 5.20 ft | on 07-17-2023 | (P) |
10. | 4.71 ft | on 01-27-2023 | |
11. | 5.84 ft | on 12-16-2022 | |
12. | 3.50 ft | on 06-16-2022 | |
13. | 3.83 ft | on 04-20-2022 | |
14. | 4.22 ft | on 03-13-2022 | |
15. | 3.71 ft | on 02-09-2022 | |
16. | 4.35 ft | on 01-18-2022 | |
17. | 5.66 ft | on 03-26-2021 | |
18. | 5.22 ft | on 03-20-2021 | |
19. | 5.42 ft | on 03-02-2021 | |
20. | 5.81 ft | on 02-20-2021 | |
21. | 5.03 ft | on 02-03-2021 | |
22. | 5.72 ft | on 01-04-2021 | |
23. | 7.49 ft | on 12-06-2020 | |
24. | 7.29 ft | on 11-13-2020 | |
25. | 6.00 ft | on 03-04-2019 | |
26. | 5.90 ft | on 02-22-2019 | |
27. | 5.73 ft | on 01-25-2019 | |
28. | 5.17 ft | on 12-17-2018 | |
29. | 5.35 ft | on 11-26-2018 | |
30. | 5.25 ft | on 11-17-2018 | |
31. | 7.14 ft | on 10-13-2018 | |
32. | 5.61 ft | on 06-05-2018 | |
33. | 8.10 ft | on 05-19-2018 | |
34. | 7.71 ft | on 08-13-2017 | |
35. | 8.95 ft | on 09-30-2016 | |
36. | 5.28 ft | on 04-21-2015 | |
37. | 5.78 ft | on 03-31-2014 | |
38. | 7.10 ft | on 08-02-2013 | |
39. | 7.25 ft | on 10-30-2012 | |
40. | 4.53 ft | on 03-02-2012 | |
41. | 5.53 ft | on 08-29-2011 | |
42. | 7.50 ft | on 11-14-2009 | |
43. | 5.89 ft | on 12-13-2008 | |
44. | 5.39 ft | on 05-14-2008 | |
45. | 6.47 ft | on 04-17-2007 | |
46. | 5.82 ft | on 09-03-2006 | |
47. | 7.14 ft | on 07-09-2005 | |
48. | 6.62 ft | on 04-14-2004 | |
49. | 6.21 ft | on 02-23-2003 | |
50. | 7.06 ft | on 09-02-2002 | |
51. | 6.61 ft | on 03-22-2001 | |
52. | 7.31 ft | on 03-23-2000 | |
53. | 6.28 ft | on 03-16-1999 | |
54. | 8.13 ft | on 01-29-1998 | |
55. | 6.40 ft | on 12-15-1996 | |
56. | 6.54 ft | on 08-14-1996 | |
57. | 4.49 ft | on 03-10-1995 | |
58. | 7.72 ft | on 03-03-1994 | |
59. | 7.28 ft | on 03-14-1993 | |
60. | 6.51 ft | on 08-19-1992 | |
61. | 6.19 ft | on 01-13-1991 | |
62. | 6.39 ft | on 05-30-1990 | |
63. | 9.07 ft | on 08-19-1989 | |
64. | 6.06 ft | on 04-09-1988 | |
65. | 6.29 ft | on 01-21-1987 | |
66. | 6.26 ft | on 12-02-1985 | |
67. | 6.71 ft | on 09-29-1985 | |
68. | 6.86 ft | on 03-30-1984 | |
69. | 6.77 ft | on 04-17-1983 | |
70. | 5.77 ft | on 02-19-1982 | |
71. | 4.49 ft | on 02-23-1981 | |
72. | 7.30 ft | on 11-12-1979 | |
73. | 7.95 ft | on 02-26-1979 | |
74. | 7.37 ft | on 12-20-1977 | |
75. | 6.31 ft | on 10-22-1976 | |
76. | 6.14 ft | on 01-02-1976 | |
77. | 6.73 ft | on 03-20-1975 | |
78. | 6.00 ft | on 08-11-1974 | |
79. | 7.00 ft | on 02-03-1973 | |
80. | 7.63 ft | on 06-30-1972 | |
81. | 6.01 ft | on 05-18-1971 | |
82. | 6.43 ft | on 12-27-1969 | |
83. | 6.59 ft | on 08-22-1969 | |
84. | 6.42 ft | on 03-19-1968 | |
85. | 6.64 ft | on 08-25-1967 | |
86. | 5.00 ft | on 02-15-1966 | |
87. | 4.11 ft | on 08-05-1965 | |
88. | 6.95 ft | on 04-10-1964 | |
89. | 7.00 ft | on 03-13-1963 | |
90. | 7.14 ft | on 01-07-1962 | |
91. | 7.10 ft | on 02-10-1961 | |
92. | 6.09 ft | on 11-26-1959 | |
93. | 6.95 ft | on 07-17-1959 | |
94. | 7.36 ft | on 03-21-1958 | |
95. | 6.79 ft | on 11-02-1956 | |
96. | 6.19 ft | on 10-16-1955 | |
97. | 7.57 ft | on 08-14-1955 | |
98. | 6.51 ft | on 04-30-1954 | |
99. | 7.82 ft | on 08-16-1953 | |
100. | 6.70 ft | on 03-26-1952 | |
101. | 5.75 ft | on 06-12-1951 | |
102. | 5.41 ft | on 03-25-1950 |
Historic Crests
1. | 9.07 ft | on 08-19-1989 |
2. | 8.95 ft | on 09-30-2016 |
3. | 8.13 ft | on 01-29-1998 |
4. | 8.10 ft | on 05-19-2018 |
5. | 7.95 ft | on 02-26-1979 |
Historic Crests
1. | 9.07 ft | on 08-19-1989 | |
2. | 8.95 ft | on 09-30-2016 | |
3. | 8.13 ft | on 01-29-1998 | |
4. | 8.10 ft | on 05-19-2018 | |
5. | 7.95 ft | on 02-26-1979 | |
6. | 7.82 ft | on 08-16-1953 | |
7. | 7.72 ft | on 03-03-1994 | |
8. | 7.71 ft | on 12-18-2023 | (P) |
9. | 7.71 ft | on 08-13-2017 | |
10. | 7.63 ft | on 06-30-1972 | |
11. | 7.57 ft | on 08-14-1955 | |
12. | 7.50 ft | on 11-14-2009 | |
13. | 7.49 ft | on 12-06-2020 | |
14. | 7.37 ft | on 12-20-1977 | |
15. | 7.36 ft | on 03-21-1958 | |
16. | 7.31 ft | on 03-23-2000 | |
17. | 7.30 ft | on 11-12-1979 | |
18. | 7.29 ft | on 11-13-2020 | |
19. | 7.28 ft | on 03-14-1993 | |
20. | 7.28 ft | on 03-07-2024 | (P) |
21. | 7.28 ft | on 03-07-2024 | (P) |
22. | 7.25 ft | on 10-30-2012 | |
23. | 7.14 ft | on 01-07-1962 | |
24. | 7.14 ft | on 07-09-2005 | |
25. | 7.14 ft | on 10-13-2018 | |
26. | 7.10 ft | on 08-02-2013 | |
27. | 7.10 ft | on 02-10-1961 | |
28. | 7.06 ft | on 09-02-2002 | |
29. | 7.02 ft | on 01-10-2024 | (P) |
30. | 7.00 ft | on 02-03-1973 | |
31. | 7.00 ft | on 03-13-1963 | |
32. | 6.95 ft | on 07-17-1959 | |
33. | 6.95 ft | on 04-10-1964 | |
34. | 6.86 ft | on 03-30-1984 | |
35. | 6.79 ft | on 11-02-1956 | |
36. | 6.77 ft | on 04-17-1983 | |
37. | 6.73 ft | on 03-20-1975 | |
38. | 6.71 ft | on 09-29-1985 | |
39. | 6.70 ft | on 03-26-1952 | |
40. | 6.64 ft | on 08-25-1967 | |
41. | 6.62 ft | on 04-14-2004 | |
42. | 6.61 ft | on 03-22-2001 | |
43. | 6.59 ft | on 08-22-1969 | |
44. | 6.55 ft | on 03-29-2024 | (P) |
45. | 6.54 ft | on 08-14-1996 | |
46. | 6.51 ft | on 04-30-1954 | |
47. | 6.51 ft | on 08-19-1992 | |
48. | 6.47 ft | on 04-17-2007 | |
49. | 6.43 ft | on 12-27-1969 | |
50. | 6.42 ft | on 03-19-1968 | |
51. | 6.40 ft | on 12-15-1996 | |
52. | 6.39 ft | on 05-30-1990 | |
53. | 6.31 ft | on 10-22-1976 | |
54. | 6.29 ft | on 01-21-1987 | |
55. | 6.28 ft | on 03-16-1999 | |
56. | 6.26 ft | on 12-02-1985 | |
57. | 6.21 ft | on 02-23-2003 | |
58. | 6.19 ft | on 10-16-1955 | |
59. | 6.19 ft | on 01-13-1991 | |
60. | 6.14 ft | on 01-02-1976 | |
61. | 6.09 ft | on 11-26-1959 | |
62. | 6.07 ft | on 03-03-2024 | (P) |
63. | 6.06 ft | on 04-09-1988 | |
64. | 6.01 ft | on 05-18-1971 | |
65. | 6.00 ft | on 03-04-2019 | |
66. | 6.00 ft | on 08-11-1974 | |
67. | 5.91 ft | on 03-18-2025 | (P) |
68. | 5.90 ft | on 02-22-2019 | |
69. | 5.89 ft | on 12-13-2008 | |
70. | 5.84 ft | on 12-16-2022 | |
71. | 5.82 ft | on 09-03-2006 | |
72. | 5.81 ft | on 02-20-2021 | |
73. | 5.78 ft | on 03-31-2014 | |
74. | 5.77 ft | on 02-19-1982 | |
75. | 5.75 ft | on 06-12-1951 | |
76. | 5.73 ft | on 01-25-2019 | |
77. | 5.72 ft | on 01-04-2021 | |
78. | 5.66 ft | on 03-26-2021 | |
79. | 5.61 ft | on 06-05-2018 | |
80. | 5.53 ft | on 08-29-2011 | |
81. | 5.42 ft | on 03-02-2021 | |
82. | 5.41 ft | on 03-25-1950 | |
83. | 5.39 ft | on 05-14-2008 | |
84. | 5.35 ft | on 11-26-2018 | |
85. | 5.28 ft | on 04-21-2015 | |
86. | 5.25 ft | on 11-17-2018 | |
87. | 5.22 ft | on 03-20-2021 | |
88. | 5.20 ft | on 07-17-2023 | (P) |
89. | 5.17 ft | on 12-17-2018 | |
90. | 5.03 ft | on 02-03-2021 | |
91. | 5.00 ft | on 02-15-1966 | |
92. | 4.71 ft | on 01-27-2023 | |
93. | 4.53 ft | on 03-02-2012 | |
94. | 4.49 ft | on 03-10-1995 | |
95. | 4.49 ft | on 02-23-1981 | |
96. | 4.35 ft | on 01-18-2022 | |
97. | 4.22 ft | on 03-13-2022 | |
98. | 4.11 ft | on 08-05-1965 | |
99. | 3.83 ft | on 04-20-2022 | |
100. | 3.71 ft | on 02-09-2022 | |
101. | 3.63 ft | on 12-30-2023 | (P) |
102. | 3.50 ft | on 06-16-2022 |
Vertical Datum Table
type | NAVD88 |
---|---|
major Flooding | 19.99 ft |
moderate Flooding | 18.99 ft |
minor Flooding | 17.99 ft |
action | 17.49 ft |
Latest Value | 12.92 ft |
Gauge Zero | 11.49 ft |
Gauge Photos
No Images Found
Probability Information
No Images Available
Unique Local Info
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Additional Water and Weather Topics from the
Middle Atlantic River Forecast Center (MARFC): |
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.