Warning Vector

Severe Thunderstorm Warning

NWS Quad Cities IA IL ยท US

Updated
This event was updated at .

Details

A Severe Thunderstorm Warning Remains In Effect Until 215 AM CDT For Western Rock Island...Northwestern Mercer...Northern Henry... Louisa...East Central Keokuk...Southwestern Cedar...Southern Johnson...Washington...Muscatine And Northeastern Jefferson Counties

Event
Severe Thunderstorm Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Observed
Response
Shelter

Description

Overview

At 141 AM CDT, severe thunderstorms were located along a line extending from near Kalona to near Cotter to near New London, moving northeast at 50 mph.

Hazard

60 mph wind gusts.

Source

Radar indicated.

Impacts

Expect damage to roofs, siding, and trees. Locations impacted include... Iowa City, Muscatine, Washington, West Branch, Wapello, Columbus Junction, West Liberty, Kalona, Wellman, Lone Tree, Winfield, Riverside, Fruitland, Wayland, Hills, Brighton, Ainsworth, Grandview, Conesville, and Columbus City. This includes Interstate 80 in Iowa between mile markers 249 and 265.

Instructions

For your protection move to an interior room on the lowest floor of a sturdy building. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in the Quad Cities. Continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Affected areas

  • Mercer County, IL
  • Rock Island County, IL
  • Cedar County, IA
  • Henry County, IA
  • Jefferson County, IA
  • Johnson County, IA
  • Keokuk County, IA
  • Louisa County, IA
  • Muscatine County, IA
  • Washington County, IA

Public contact

Issuer
NWS Quad Cities IA IL

Message record

Received
Issue to receipt
~57s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2YRSKNSB77V9VSX3CAM29BV
Identifier
urn:oid:2.49.0.1.840.0.de5f3665e0cdc7ff07db8c71477c84e239c04739.002.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Quad Cities IA IL
AWIPS ID
CAPDVN
NWWS sequence
nwws_processor.1252
WMO heading
XOUS53
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
53

References

Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMESVS
NationalWeatherServiceSVW

Parameters

NameValue
AWIPSidentifierSVSDVN
WMOidentifierWWUS53 KDVN 200641
NWSheadlineA SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHERN HENRY... LOUISA...EAST CENTRAL KEOKUK...SOUTHWESTERN CEDAR...SOUTHERN JOHNSON...WASHINGTON...MUSCATINE AND NORTHEASTERN JEFFERSON COUNTIES
eventMotionDescription2026-09-20T06:41:00-00:00...storm...244DEG...45KT...41.5,-91.74 41.33,-91.46 40.99,-91.42
windThreatRADAR INDICATED
maxWindGust60 MPH
hailThreatRADAR INDICATED
maxHailSizeUp to .75
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
eventEndingTime2026-09-20T02:15:00-05:00
BLOCKCHANNELCMAS
Locations

Location data

  • Mercer County, IL
  • Rock Island County, IL
  • Cedar County, IA
  • Henry County, IA
  • Jefferson County, IA
  • Johnson County, IA
  • Keokuk County, IA
  • Louisa County, IA
  • Muscatine County, IA
  • Washington County, IA
NameValue
SAME017131
SAME017161
SAME019031
SAME019087
SAME019101
SAME019103
SAME019107
SAME019115
SAME019139
SAME019183
UGCILC131
UGCILC161
UGCIAC031
UGCIAC087
UGCIAC101
UGCIAC103
UGCIAC107
UGCIAC115
UGCIAC139
UGCIAC183
Polygons
41.39,-92.01 41.77,-91.29 41.52,-90.98 41.24,-91.0 40.93,-91.73 41.03,-91.81 41.09,-91.86 41.17,-91.91 41.3,-91.97 41.39,-92.01