Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Effective August 28, 2019, the National Weather Service (NWS) in North Platte, NE will change the flood category stages for the North Platte River at Lewellen (LEWN1).

All NWS flood warnings, flood statements, flood advisories, flood watches, probability outlooks, and NWS hydrographs on the Advanced Hydrologic Prediction Service (AHPS) will reference the new category levels. This change is part of a recent evaluation of the levels based on high water, flood events, and impacts over the past 10 years.

The new flood categories will be as follows (all values at level above gage zero datum) at the North Platte River at Lewellen:

New Flood Categories	Previous Flood Categories
Action Stage: 7.0 ft	Action Stage: 6.5 ft
Flood Stage: 8.0 ft	Flood Stage: 7.5 ft
Moderate Flood Stage: 9.0 ft	Moderate Flood Stage: 8.5 ft
Major Flood Stage: 10.0 ft	Major Flood Stage: 9.5 ft
Gage zero datum: 3286.992 ft above MSL NAVD88

The National Weather Service welcomes public feedback. If you have any questions or comments on this change, please contact:

Kenneth Roberg
Lead Forecaster/Hydrology Focal Point
(308) 532-4936
kenneth.roberg@noaa.gov

National Weather Service
5250 East Lee Bird Dr
North Platte, NE 69101

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Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Lewellen River Flood Category Changes - Effective August 28, 2019