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SPC Mesoscale Discussion 0390

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SPC Mesoscale Discussion 0390
Andrew Lyons and Bryan Smith with the United States Storm Prediction Center

The Storm Prediction Center’s mesoscale discussion #0390. This discussion was issued for a outlook upgrade to a HIGH risk for the tornado outbreak of March 31 – April 1, 2023

4462996SPC Mesoscale Discussion 0390Andrew Lyons and Bryan Smith with the United States Storm Prediction Center


  Mesoscale Discussion 0390
  NWS Storm Prediction Center Norman OK
  1037 AM CDT Fri Mar 31 2023
Areas affected...portions of southeastern Iowa...northwestern Illinois...and far northeastern Missouri
Concerning...Outlook upgrade
Valid 311537Z - 311630Z
SUMMARY...Portions of the Moderate Risk over southeastern IA, northwestern IL, and far northeastern MO will be upgraded to a categorical High Risk in the 1630 UTC Convective outlook.
DISCUSSION...An upgrade to a tornado-driven High Risk (30% probability) is expected for the 1630 UTC outlook
. Environmental conditions are quickly becoming favorable to support the potential for numerous strong to potentially violent and long-track tornadoes across portions of southeastern IA, northwestern IL, and far northeastern MO.
Please see the forthcoming Day 1 outlook update for more information.
..Lyons/Smith.. 03/31/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ILX...LSX...DVN...DMX...
LAT...LON 39879141 40699241 41549220 41989172 42009085 41118967 40618964 39969001 39789064 39879141

This work is in the public domain in the United States because it is a work of the United States federal government (see 17 U.S.C. 105).

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