Hazard Tornadoes EF2+ Tornadoes Likelihood Low Very Low Severe Wind 65 kt+ Wind Moderate Low Severe Hail 2"+ Hail Moderate Moderate

Note: The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.

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SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 487 NWS Storm Prediction Center Norman OK 255 AM CDT Sun Sep 6 2020 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Eastern Iowa Northern Illinois * Effective this Sunday morning from 255 AM until 900 AM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Multiple rounds of storms will persist overnight across the region, with a more organized linear-type complex potentially evolving through the early morning hours. Severe hail and locally damaging wind will be possible as storms steadily progress southeastward through the early morning hours. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 15 miles north of Fort Dodge IA to 60 miles east of Moline IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 486... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 29035. ...Guyer Click for Watch Status Reports

Hazard Tornadoes EF2+ Tornadoes Likelihood Low Very Low Severe Wind 65 kt+ Wind Moderate Low Severe Hail 2"+ Hail Moderate Moderate SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 487 NWS Storm Prediction Center Norman OK 255 AM CDT Sun Sep 6 2020 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Eastern Iowa Northern Illinois * Effective this Sunday morning from 255 AM until 900 AM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Multiple rounds of storms will persist overnight across the region, with a more organized linear-type complex potentially evolving through the early morning hours. Severe hail and locally damaging wind will be possible as storms steadily progress southeastward through the early morning hours. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 15 miles north of Fort Dodge IA to 60 miles east of Moline IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 486... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 29035. ...Guyer

Hazard Tornadoes EF2+ Tornadoes Likelihood Low Very Low Severe Wind 65 kt+ Wind Moderate Low Severe Hail 2"+ Hail Moderate Moderate

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.

SAW7 WW 487 SEVERE TSTM IA IL 060755Z - 061400Z AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE.. 15N FOD/FORT DODGE IA/ - 60E MLI/MOLINE IL/ ..AVIATION COORDS.. 50NM N/S /10NNE FOD - 20NNE BDF/ HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS. MAX TOPS TO 600. MEAN STORM MOTION VECTOR 29035. LAT...LON 43649420 42318934 40588934 41909420 THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS FOR WOU7. Watch 487 Status Report Messages: STATUS REPORT #3 ON WW 487 VALID 061230Z - 061340Z SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N OTM TO 10 SSE CID TO 30 WNW MMO. ..MOSIER..09/06/20 ATTN...WFO...DVN...DMX...ILX...LOT... && STATUS REPORT FOR WS 487 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC011-039-073-095-099-105-107-113-123-131-143-155-161-175-179- 203-061340- IL . ILLINOIS COUNTIES INCLUDED ARE BUREAU DE WITT HENRY KNOX LA SALLE LIVINGSTON LOGAN MCLEAN MARSHALL MERCER PEORIA PUTNAM ROCK ISLAND STARK TAZEWELL WOODFORD $$ IAC103-107-115-139-163-183-061340- IA . IOWA COUNTIES INCLUDED ARE JOHNSON KEOKUK LOUISA MUSCATINE SCOTT WASHINGTON $$ THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. $$ STATUS REPORT #2 ON WW 487 VALID 061050Z - 061140Z SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 S FOD TO 20 NE MCW. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1679 ..MOSIER..09/06/20 ATTN...WFO...DVN...DMX...ILX...LOT... && STATUS REPORT FOR WS 487 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC011-015-073-085-095-099-103-123-131-141-155-161-175-177-195- 061140- IL . ILLINOIS COUNTIES INCLUDED ARE BUREAU CARROLL HENRY JO DAVIESS KNOX LA SALLE LEE MARSHALL MERCER OGLE PUTNAM ROCK ISLAND STARK STEPHENSON WHITESIDE $$ IAC011-013-017-019-023-031-033-045-055-061-069-075-079-083-095- 097-099-103-105-107-113-115-123-127-139-157-163-169-171-183-197- 061140- IA . IOWA COUNTIES INCLUDED ARE BENTON BLACK HAWK BREMER BUCHANAN BUTLER CEDAR CERRO GORDO CLINTON DELAWARE DUBUQUE FRANKLIN GRUNDY HAMILTON HARDIN IOWA JACKSON JASPER JOHNSON JONES KEOKUK LINN LOUISA MAHASKA MARSHALL MUSCATINE POWESHIEK SCOTT STORY TAMA WASHINGTON WRIGHT $$ THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. $$ STATUS REPORT #1 ON WW 487 VALID 060930Z - 061040Z THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..MOSIER..09/06/20 ATTN...WFO...DVN...DMX...ILX...LOT... && STATUS REPORT FOR WS 487 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC011-015-073-085-095-099-103-123-131-141-155-161-175-177-195- 061040- IL . ILLINOIS COUNTIES INCLUDED ARE BUREAU CARROLL HENRY JO DAVIESS KNOX LA SALLE LEE MARSHALL MERCER OGLE PUTNAM ROCK ISLAND STARK STEPHENSON WHITESIDE $$ IAC011-013-015-017-019-023-031-033-045-055-061-069-075-079-081- 083-091-095-097-099-103-105-107-109-113-115-123-127-139-153-157- 163-169-171-183-187-189-195-197-061040- IA . IOWA COUNTIES INCLUDED ARE BENTON BLACK HAWK BOONE BREMER BUCHANAN BUTLER CEDAR CERRO GORDO CLINTON DELAWARE DUBUQUE FRANKLIN GRUNDY HAMILTON HANCOCK HARDIN HUMBOLDT IOWA JACKSON JASPER JOHNSON JONES KEOKUK KOSSUTH LINN LOUISA MAHASKA MARSHALL MUSCATINE POLK POWESHIEK SCOTT STORY TAMA WASHINGTON WEBSTER WINNEBAGO WORTH WRIGHT $$ THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. $$