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Heavy to Excessive Rainfall in the Southeast U.S.; Critical Fire Weather in the Northern Plains and Upper Midwest

A slow-moving storm system will continue to produce widespread heavy showers and thunderstorms which may bring excessive rainfall and flooding as it tracks across the Southeast and Mid-Atlantic regions today into Wednesday. Gusty winds and dry fuels under potential record setting temperatures will support widespread critical fire weather in the northern Plains and Upper Midwest today. Read More >

Overview

Supercells developed over portions of north-central Iowa on the afternoon of Wednesday, July 14, 2021. The environment was ripe for tornadic development and rotation was evident on radar shortly after storms formed. Generally south of along the Highway 20 corridor was the hot spot for tornadoes from around Nemaha, Lake City, Stanhope, Jewell, and Waverly. Tornadoes were reported around Dysart and south of Mason City. Heavy rain caused flash flooding in Maxwell and ping pong hail was reported in Clarksville.        

 

Other NWS Office Event Summaries:

NWS Quad Cities  |  NWS La Crosse 

 

The latest updates:

  • At least 12 confirmed tornadoes in the NWS Des Moines area.
  • Five (5) tornadoes were surveyed by NWS DMX personnel on July 15. 
  • Four (4) additional tornadoes have been rated or tracked by damage reports, photos, and/or videos and/or high resolution satellite.
  • Preliminarily, there were 26 tornadoes across the state as of the morning of July 16, 2021. This makes it the 3rd most tornadoes in a single day since records began in 1980. However, the total number of tornadoes from July 14, 2021 will change as further data is analyzed in the coming days and weeks.
  • There are still several additional tornadoes paths to be refined using high resolution satellite in the coming days.

Last update: July 25, 2021 7:54 p.m. CDT

Tornado between Stanhope and Radcliffe. Photo courtesy of Hunter Fowkes.
Tornado between Stanhope and Radcliffe. Photo courtesy of Hunter Fowkes.
Tornado between Stanhope to Jewell. Photo courtesy of @BTravs. Tornado near Sac City. Photo courtesy of @MrJPE. Tornado near Gowrie. Photo courtesy of Adam (@adamorgler).
Tornado between Stanhope to Jewell. Photo courtesy of @BTravs. Tornado near Sac City. Photo courtesy of @MrJPE. Tornado near Gowrie. Photo courtesy of @adamorgler.
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