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Hydrograph River at a Glance Download
Ohio River at Lloyd Greenup Lock Tailwater (ft)Observed: 35.32 ft at 5:00AM Mar 29, 2020Observed: 35.3 ft at 5:15AM Mar 29, 2020Observed: 35.28 ft at 5:30AM Mar 29, 2020Observed: 35.27 ft at 5:45AM Mar 29, 2020Observed: 35.25 ft at 6:00AM Mar 29, 2020Observed: 35.18 ft at 6:15AM Mar 29, 2020Observed: 35.19 ft at 6:30AM Mar 29, 2020Observed: 35.21 ft at 6:45AM Mar 29, 2020Observed: 35.2 ft at 7:00AM Mar 29, 2020Observed: 35.13 ft at 7:15AM Mar 29, 2020Observed: 35.11 ft at 7:30AM Mar 29, 2020Observed: 35.11 ft at 7:45AM Mar 29, 2020Observed: 35.1 ft at 8:00AM Mar 29, 2020Observed: 35.07 ft at 8:15AM Mar 29, 2020Observed: 35.07 ft at 8:30AM Mar 29, 2020Observed: 35.05 ft at 8:45AM Mar 29, 2020Observed: 35.1 ft at 9:00AM Mar 29, 2020Observed: 35.01 ft at 9:15AM Mar 29, 2020Observed: 35.06 ft at 9:30AM Mar 29, 2020Observed: 35.05 ft at 9:45AM Mar 29, 2020Observed: 35.08 ft at 10:00AM Mar 29, 2020Observed: 35 ft at 10:15AM Mar 29, 2020Observed: 35.04 ft at 10:30AM Mar 29, 2020Observed: 34.95 ft at 10:45AM Mar 29, 2020Observed: 34.98 ft at 11:00AM Mar 29, 2020Observed: 34.98 ft at 11:15AM Mar 29, 2020Observed: 34.99 ft at 11:30AM Mar 29, 2020Observed: 34.97 ft at 11:45AM Mar 29, 2020Observed: 34.99 ft at 12:00PM Mar 29, 2020Observed: 35.01 ft at 12:15PM Mar 29, 2020Observed: 34.93 ft at 12:30PM Mar 29, 2020Observed: 35.02 ft at 12:45PM Mar 29, 2020Observed: 34.94 ft at 1:00PM Mar 29, 2020Observed: 34.93 ft at 1:15PM Mar 29, 2020Observed: 34.93 ft at 1:30PM Mar 29, 2020Observed: 35 ft at 1:45PM Mar 29, 2020Observed: 34.92 ft at 2:00PM Mar 29, 2020Observed: 34.99 ft at 2:15PM Mar 29, 2020Observed: 34.95 ft at 2:30PM Mar 29, 2020Observed: 34.96 ft at 2:45PM Mar 29, 2020Observed: 34.97 ft at 3:00PM Mar 29, 2020Observed: 34.93 ft at 3:15PM Mar 29, 2020Observed: 34.95 ft at 3:30PM Mar 29, 2020Observed: 34.96 ft at 3:45PM Mar 29, 2020Observed: 34.95 ft at 4:00PM Mar 29, 2020Observed: 34.97 ft at 4:15PM Mar 29, 2020Observed: 35 ft at 4:30PM Mar 29, 2020Observed: 35.01 ft at 4:45PM Mar 29, 2020Observed: 34.98 ft at 5:00PM Mar 29, 2020Observed: 34.96 ft at 5:15PM Mar 29, 2020Observed: 34.97 ft at 5:30PM Mar 29, 2020Observed: 34.97 ft at 5:45PM Mar 29, 2020Observed: 34.98 ft at 6:00PM Mar 29, 2020Observed: 35.03 ft at 6:15PM Mar 29, 2020Observed: 35.01 ft at 6:30PM Mar 29, 2020Observed: 34.98 ft at 6:45PM Mar 29, 2020Observed: 35.03 ft at 7:00PM Mar 29, 2020Observed: 35.01 ft at 7:15PM Mar 29, 2020Observed: 35.17 ft at 7:30PM Mar 29, 2020Observed: 35.22 ft at 7:45PM Mar 29, 2020Observed: 35.24 ft at 8:00PM Mar 29, 2020Observed: 35.43 ft at 8:15PM Mar 29, 2020Observed: 35.46 ft at 8:30PM Mar 29, 2020Observed: 35.47 ft at 8:45PM Mar 29, 2020Observed: 35.49 ft at 9:00PM Mar 29, 2020Observed: 35.52 ft at 9:15PM Mar 29, 2020Observed: 35.58 ft at 9:30PM Mar 29, 2020Observed: 35.6 ft at 9:45PM Mar 29, 2020Observed: 35.6 ft at 10:00PM Mar 29, 2020Observed: 35.59 ft at 10:15PM Mar 29, 2020Observed: 35.61 ft at 10:30PM Mar 29, 2020Observed: 35.64 ft at 10:45PM Mar 29, 2020Observed: 35.81 ft at 11:00PM Mar 29, 2020Observed: 35.86 ft at 11:15PM Mar 29, 2020Observed: 35.86 ft at 11:30PM Mar 29, 2020Observed: 35.98 ft at 11:45PM Mar 29, 2020Observed: 35.91 ft at 12:00AM Mar 30, 2020Observed: 35.95 ft at 12:15AM Mar 30, 2020Observed: 35.96 ft at 12:30AM Mar 30, 2020Observed: 35.99 ft at 12:45AM Mar 30, 2020Observed: 36.04 ft at 1:00AM Mar 30, 2020Observed: 36.14 ft at 1:15AM Mar 30, 2020Observed: 36.17 ft at 1:30AM Mar 30, 2020Observed: 36.21 ft at 1:45AM Mar 30, 2020Observed: 36.26 ft at 2:00AM Mar 30, 2020Observed: 36.4 ft at 2:15AM Mar 30, 2020Observed: 36.47 ft at 2:30AM Mar 30, 2020Observed: 36.51 ft at 2:45AM Mar 30, 2020Observed: 36.56 ft at 3:00AM Mar 30, 2020Observed: 36.58 ft at 3:15AM Mar 30, 2020Observed: 36.59 ft at 3:30AM Mar 30, 2020Observed: 36.61 ft at 3:45AM Mar 30, 2020Observed: 36.62 ft at 4:00AM Mar 30, 2020Observed: 36.66 ft at 4:15AM Mar 30, 2020Observed: 36.67 ft at 4:30AM Mar 30, 2020Observed: 36.7 ft at 4:45AM Mar 30, 2020Observed: 36.73 ft at 5:00AM Mar 30, 2020Observed: 36.76 ft at 5:15AM Mar 30, 2020Observed: 36.77 ft at 5:30AM Mar 30, 2020Observed: 36.81 ft at 5:45AM Mar 30, 2020Observed: 36.93 ft at 6:00AM Mar 30, 2020Observed: 36.98 ft at 6:15AM Mar 30, 2020Observed: 37.01 ft at 6:30AM Mar 30, 2020Observed: 37.1 ft at 6:45AM Mar 30, 2020Observed: 37.07 ft at 7:00AM Mar 30, 2020Observed: 37.08 ft at 7:15AM Mar 30, 2020Observed: 37.09 ft at 7:30AM Mar 30, 2020Observed: 37.09 ft at 7:45AM Mar 30, 2020Observed: 37.14 ft at 8:00AM Mar 30, 2020Observed: 37.17 ft at 8:15AM Mar 30, 2020Observed: 37.23 ft at 8:30AM Mar 30, 2020Observed: 37.52 ft at 8:45AM Mar 30, 2020Observed: 37.57 ft at 9:00AM Mar 30, 2020Observed: 37.59 ft at 9:15AM Mar 30, 2020Observed: 37.59 ft at 9:30AM Mar 30, 2020Observed: 37.61 ft at 9:45AM Mar 30, 2020Observed: 37.67 ft at 10:00AM Mar 30, 2020Observed: 37.66 ft at 10:15AM Mar 30, 2020Observed: 37.72 ft at 10:30AM Mar 30, 2020Observed: 37.75 ft at 10:45AM Mar 30, 2020Observed: 37.76 ft at 11:00AM Mar 30, 2020Observed: 37.81 ft at 11:15AM Mar 30, 2020Observed: 37.82 ft at 11:30AM Mar 30, 2020Observed: 37.86 ft at 11:45AM Mar 30, 2020Observed: 37.9 ft at 12:00PM Mar 30, 2020Observed: 37.91 ft at 12:15PM Mar 30, 2020Observed: 37.93 ft at 12:30PM Mar 30, 2020Observed: 38 ft at 12:45PM Mar 30, 2020Observed: 37.98 ft at 1:00PM Mar 30, 2020Observed: 38.22 ft at 1:15PM Mar 30, 2020Observed: 38.39 ft at 1:30PM Mar 30, 2020Observed: 38.4 ft at 1:45PM Mar 30, 2020Observed: 38.39 ft at 2:00PM Mar 30, 2020Observed: 38.41 ft at 2:15PM Mar 30, 2020Observed: 38.46 ft at 2:30PM Mar 30, 2020Observed: 38.49 ft at 2:45PM Mar 30, 2020Observed: 38.53 ft at 3:00PM Mar 30, 2020Observed: 38.58 ft at 3:15PM Mar 30, 2020Observed: 38.56 ft at 3:30PM Mar 30, 2020Observed: 38.58 ft at 3:45PM Mar 30, 2020Observed: 38.63 ft at 4:00PM Mar 30, 2020Observed: 38.64 ft at 4:15PM Mar 30, 2020Observed: 38.66 ft at 4:30PM Mar 30, 2020Observed: 38.67 ft at 4:45PM Mar 30, 2020Observed: 38.67 ft at 5:00PM Mar 30, 2020Observed: 38.71 ft at 5:15PM Mar 30, 2020Observed: 38.72 ft at 5:30PM Mar 30, 2020Observed: 38.79 ft at 5:45PM Mar 30, 2020Observed: 38.77 ft at 6:00PM Mar 30, 2020Observed: 38.8 ft at 6:15PM Mar 30, 2020Observed: 38.94 ft at 6:30PM Mar 30, 2020Observed: 38.91 ft at 6:45PM Mar 30, 2020Observed: 38.93 ft at 7:00PM Mar 30, 2020Observed: 38.96 ft at 7:15PM Mar 30, 2020Observed: 38.94 ft at 7:30PM Mar 30, 2020Observed: 38.96 ft at 7:45PM Mar 30, 2020Observed: 38.99 ft at 8:00PM Mar 30, 2020Observed: 39.23 ft at 8:15PM Mar 30, 2020Observed: 39.25 ft at 8:30PM Mar 30, 2020Observed: 39.24 ft at 8:45PM Mar 30, 2020Observed: 39.27 ft at 9:00PM Mar 30, 2020Observed: 39.25 ft at 9:15PM Mar 30, 2020Observed: 39.33 ft at 9:30PM Mar 30, 2020Observed: 39.34 ft at 9:45PM Mar 30, 2020Observed: 39.38 ft at 10:00PM Mar 30, 2020Observed: 39.38 ft at 10:15PM Mar 30, 2020Observed: 39.41 ft at 10:30PM Mar 30, 2020Observed: 39.43 ft at 10:45PM Mar 30, 2020Observed: 39.47 ft at 11:00PM Mar 30, 2020Observed: 39.51 ft at 11:15PM Mar 30, 2020Observed: 39.54 ft at 11:30PM Mar 30, 2020Observed: 39.57 ft at 11:45PM Mar 30, 2020Observed: 39.57 ft at 12:00AM Mar 31, 2020Observed: 39.61 ft at 12:15AM Mar 31, 2020Observed: 39.63 ft at 12:30AM Mar 31, 2020Observed: 39.65 ft at 12:45AM Mar 31, 2020Observed: 39.67 ft at 1:00AM Mar 31, 2020Observed: 39.67 ft at 1:15AM Mar 31, 2020Observed: 39.7 ft at 1:30AM Mar 31, 2020Observed: 39.72 ft at 1:45AM Mar 31, 2020Observed: 39.75 ft at 2:00AM Mar 31, 2020Observed: 39.75 ft at 2:15AM Mar 31, 2020Observed: 39.78 ft at 2:30AM Mar 31, 2020Observed: 39.98 ft at 2:45AM Mar 31, 2020Observed: 40.03 ft at 3:00AM Mar 31, 2020Observed: 40.01 ft at 3:15AM Mar 31, 2020Observed: 40.05 ft at 3:30AM Mar 31, 2020Observed: 40.06 ft at 3:45AM Mar 31, 2020Observed: 40.07 ft at 4:00AM Mar 31, 2020Observed: 40.09 ft at 4:15AM Mar 31, 2020Observed: 40.1 ft at 4:30AM Mar 31, 2020Observed: 40.13 ft at 4:45AM Mar 31, 2020Observed: 40.14 ft at 5:00AM Mar 31, 2020Observed: 40.15 ft at 5:15AM Mar 31, 2020Observed: 40.18 ft at 5:30AM Mar 31, 2020Observed: 40.15 ft at 5:45AM Mar 31, 2020Observed: 40.16 ft at 6:00AM Mar 31, 2020Observed: 40.16 ft at 6:15AM Mar 31, 2020Observed: 40.21 ft at 6:30AM Mar 31, 2020Observed: 40.21 ft at 6:45AM Mar 31, 2020Observed: 40.23 ft at 7:00AM Mar 31, 2020Observed: 40.26 ft at 7:15AM Mar 31, 2020Observed: 40.28 ft at 7:30AM Mar 31, 2020Observed: 40.29 ft at 7:45AM Mar 31, 2020Observed: 40.23 ft at 8:00AM Mar 31, 2020Observed: 40.25 ft at 8:15AM Mar 31, 2020Observed: 40.3 ft at 8:30AM Mar 31, 2020Observed: 40.31 ft at 8:45AM Mar 31, 2020Observed: 40.32 ft at 9:00AM Mar 31, 2020Observed: 40.3 ft at 9:15AM Mar 31, 2020Observed: 40.34 ft at 9:30AM Mar 31, 2020Observed: 40.34 ft at 9:45AM Mar 31, 2020Observed: 40.34 ft at 10:00AM Mar 31, 2020Observed: 40.38 ft at 10:15AM Mar 31, 2020Observed: 40.35 ft at 10:30AM Mar 31, 2020Observed: 40.39 ft at 10:45AM Mar 31, 2020Observed: 40.37 ft at 11:00AM Mar 31, 2020Observed: 40.37 ft at 11:15AM Mar 31, 2020Observed: 40.38 ft at 11:30AM Mar 31, 2020Observed: 40.39 ft at 11:45AM Mar 31, 2020Observed: 40.39 ft at 12:00PM Mar 31, 2020Observed: 40.39 ft at 12:15PM Mar 31, 2020Observed: 40.4 ft at 12:30PM Mar 31, 2020Observed: 40.4 ft at 12:45PM Mar 31, 2020Observed: 40.39 ft at 1:00PM Mar 31, 2020Observed: 40.44 ft at 1:15PM Mar 31, 2020Observed: 40.45 ft at 1:30PM Mar 31, 2020Observed: 40.46 ft at 1:45PM Mar 31, 2020Observed: 40.47 ft at 2:00PM Mar 31, 2020Observed: 40.43 ft at 2:15PM Mar 31, 2020Observed: 40.47 ft at 2:30PM Mar 31, 2020Observed: 40.47 ft at 2:45PM Mar 31, 2020Observed: 40.47 ft at 3:00PM Mar 31, 2020Observed: 40.47 ft at 3:15PM Mar 31, 2020Observed: 40.48 ft at 3:30PM Mar 31, 2020Highest Observation: 40.49 ft at 3:45PM Mar 31, 2020Observed: 40.47 ft at 4:00PM Mar 31, 2020Observed: 40.47 ft at 4:15PM Mar 31, 2020Observed: 40.48 ft at 4:30PM Mar 31, 2020Observed: 40.46 ft at 4:45PM Mar 31, 2020Observed: 40.46 ft at 5:00PM Mar 31, 2020Observed: 40.46 ft at 5:15PM Mar 31, 2020Observed: 40.47 ft at 5:30PM Mar 31, 2020Observed: 40.46 ft at 5:45PM Mar 31, 2020Observed: 40.47 ft at 6:00PM Mar 31, 2020Observed: 40.46 ft at 6:15PM Mar 31, 2020Observed: 40.47 ft at 6:30PM Mar 31, 2020Observed: 40.48 ft at 6:45PM Mar 31, 2020Observed: 40.45 ft at 7:00PM Mar 31, 2020Observed: 40.45 ft at 7:15PM Mar 31, 2020Observed: 40.47 ft at 7:30PM Mar 31, 2020Observed: 40.47 ft at 7:45PM Mar 31, 2020Observed: 40.43 ft at 8:00PM Mar 31, 2020Observed: 40.45 ft at 8:15PM Mar 31, 2020Observed: 40.45 ft at 8:30PM Mar 31, 2020Observed: 40.46 ft at 8:45PM Mar 31, 2020Observed: 40.44 ft at 9:00PM Mar 31, 2020Observed: 40.41 ft at 9:15PM Mar 31, 2020Observed: 40.41 ft at 9:30PM Mar 31, 2020Observed: 40.38 ft at 9:45PM Mar 31, 2020Observed: 40.37 ft at 10:00PM Mar 31, 2020Observed: 40.43 ft at 10:15PM Mar 31, 2020Observed: 40.41 ft at 10:30PM Mar 31, 2020Observed: 40.38 ft at 10:45PM Mar 31, 2020Observed: 40.34 ft at 11:00PM Mar 31, 2020Observed: 40.35 ft at 11:15PM Mar 31, 2020Observed: 40.36 ft at 11:30PM Mar 31, 2020Observed: 40.32 ft at 11:45PM Mar 31, 2020Observed: 40.32 ft at 12:00AM Apr 01, 2020Observed: 40.31 ft at 12:15AM Apr 01, 2020Observed: 40.09 ft at 12:30AM Apr 01, 2020Observed: 40.02 ft at 12:45AM Apr 01, 2020Observed: 40.02 ft at 1:00AM Apr 01, 2020Observed: 40.03 ft at 1:15AM Apr 01, 2020Observed: 39.93 ft at 1:30AM Apr 01, 2020Observed: 40.03 ft at 1:45AM Apr 01, 2020Observed: 40.01 ft at 2:00AM Apr 01, 2020Observed: 40.01 ft at 2:15AM Apr 01, 2020Observed: 39.83 ft at 2:30AM Apr 01, 2020Observed: 39.99 ft at 2:45AM Apr 01, 2020Observed: 39.97 ft at 3:00AM Apr 01, 2020Observed: 39.97 ft at 3:15AM Apr 01, 2020Observed: 40 ft at 3:30AM Apr 01, 2020Observed: 39.95 ft at 3:45AM Apr 01, 2020Highest Forecast: 39.3 ft 8:00AM Apr 01, 2020Forecast: 38.6 ft 2:00PM Apr 01, 2020Forecast: 37.8 ft 8:00PM Apr 01, 2020Forecast: 36.8 ft 2:00AM Apr 02, 2020Forecast: 35.8 ft 8:00AM Apr 02, 2020Forecast: 34.9 ft 2:00PM Apr 02, 2020Forecast: 34.1 ft 8:00PM Apr 02, 2020Forecast: 33.4 ft 2:00AM Apr 03, 2020Forecast: 32.8 ft 8:00AM Apr 03, 2020Forecast: 32.2 ft 2:00PM Apr 03, 2020Forecast: 31.6 ft 8:00PM Apr 03, 2020Forecast: 30.9 ft 2:00AM Apr 04, 2020Forecast: 30.2 ft 8:00AM Apr 04, 2020Forecast: 29.5 ft 2:00PM Apr 04, 2020Forecast: 28.8 ft 8:00PM Apr 04, 2020Forecast: 27.9 ft 2:00AM Apr 05, 2020Forecast: 27.1 ft 8:00AM Apr 05, 2020USGS--Water Resources of the United StatesGNUK2(plotting HTIRG) Graph Created (4:49AM Apr 1, 2020)ObservedForecast (issued 10:36AM Mar 31)Latest observed value: 39.95 ft at 3:45 AM EDT 1-Apr-2020. Flood Stage is 54 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Ohio River at Lloyd Greenup Lock are issued routinely year-round.

Vertical Datum reference a local datum

Return to Area Map
Upstream Gauge - at Ironton Upstream Gauge Downstream Gauge Downstream Gauge - at Portsmouth
Flood Categories (in feet)
Major Flood Stage: 62
Moderate Flood Stage: 56
Flood Stage: 54
Action Stage: 52
Low Stage (in feet): -9999

Historic Crests
(1) 74.70 ft on 01/27/1937
(2) 64.50 ft on 03/31/1913
(3) 64.00 ft on 02/12/1884
(4) 62.30 ft on 03/04/1997
(5) 61.70 ft on 03/09/1945
(6) 59.20 ft on 12/11/1978
(7) 59.19 ft on 02/28/1979
(8) 57.14 ft on 02/20/2018
(9) 56.80 ft on 03/13/2011
(10) 56.80 ft on 03/13/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 54.94 ft on 02/15/2020
(2) 51.84 ft on 12/24/2018
(3) 57.14 ft on 02/20/2018
(4) 54.72 ft on 03/14/2015
(5) 54.80 ft on 03/07/2015
(6) 54.21 ft on 03/07/2015
(7) 50.01 ft on 02/03/2013
(8) 56.80 ft on 03/13/2011
(9) 56.80 ft on 03/13/2011
(10) 56.64 ft on 01/10/2005
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
74.7 This flood will exceed the highest stage on record. Large amounts of property damage is expected. Evacuation of homes and businesses will be required.
69 Highest ground in Greenup is flooded. Route 23 is closed.
68 Water enters 900f residental area of Greenup. CSX Railroad is closed in all parts of Greenup.
67 Berry Street in Greenup is flooded.
66 Womeck Cemetery is flooded.
65 Backwater flooding into Raccoon Creek begins.
64 CSX Railroad is closed on east side of Greenup.
62 Water enters Greenup High School.
56 Several low lying areas flooded and backwater affected on both sides of the river.
54 This will cause minor flooding of mainly low-lying areas. Backwater flooding starts on both sides of the river.
54 This will cause minor flooding of mainly low-lying areas. Backwater flooding starts on both sides of the river.
About This Location Collapse

Latitude: 38.646667° N, Longitude: 82.860556° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 54 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 472.97 526.97 COE1912

Current/Historical Observations:
Additional Information Collapse
< Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Normal upper pool elevations 515.0 feet m.s.l., upper pool length 61.8 miles to Robert C. Byrd Locks & Dam, normal upper pool surface area 11,200 acres, nominal lower pool elevation 485.0 feet m.s.l., (upper pool of Captain Anthony Meldahl Dam), normal lift 30.0 feet.
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Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
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