Alert archive / Illinois / Flood Watches in 2026

Flood Watch 8, NWS Lincoln, IL

June 11, 202614 counties in Illinois

NWS Lincoln, IL issued this flood watch at Jun 11, 2026, 11:39 AM CDT for 14 counties in Illinois. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 11, 2026, 11:39 AM CDT (16:39 UTC)
Expired
Jun 11, 2026, 9:00 PM CDT
In force
9 hr
Issued by
NWS Lincoln, IL
Flood severity
None

Counties Cass County, IL, DeWitt County, IL, Fulton County, IL, Knox County, IL, Logan County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Peoria County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 48 km from the middle of the area, began a volume at 16:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.7 hours before the alert went out and 100 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1453 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lincoln, IL wrote its last area forecast discussion before this flood watch went out at Jun 11, 6:12 AM CDT, 5 hours 27 minutes earlier.

Area forecast discussion, Jun 11, 6:12 AM CDT, 5 hours 27 minutes before
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Hazardous weather outlook, Jun 11, 5:24 AM CDT, 6 hours 15 minutes before
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In the hours before

Local storm report, Jun 11, 5:54 AM CDT, 5 hours 45 minutes before
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Local storm report, Jun 11, 5:56 AM CDT, 5 hours 43 minutes before
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Local storm report, Jun 11, 5:59 AM CDT, 5 hours 40 minutes before
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Local storm report, Jun 11, 6:17 AM CDT, 5 hours 22 minutes before
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The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 7:24 PM CDTSevere Thunderstorm WarningILXKnox, Marshall, Peoria, Stark66 min
Jun 10, 8:07 PM CDTFlash Flood WarningILXKnox, Peoria, Stark3 hr
Jun 10, 8:37 PM CDTSevere Thunderstorm WarningILXMcLean, Marshall, Tazewell, Woodford38 min
Jun 10, 8:53 PM CDTSevere Thunderstorm WarningILXFulton, Knox52 min
Jun 10, 9:14 PM CDTFlash Flood WarningILXFulton, Knox, Marshall, Peoria, Stark, Woodford5 hr
Jun 10, 10:00 PM CDTFlash Flood WarningILXFulton, Mason, Peoria, Tazewell4 hr
Jun 10, 10:36 PM CDTSevere Thunderstorm WarningILXMason, Tazewell24 min
Jun 10, 10:46 PM CDTSevere Thunderstorm WarningILXMcLean, Tazewell44 min
Jun 10, 10:58 PM CDTTornado WarningILXLogan, Macon, Menard, Sangamon36 min
Jun 10, 11:05 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Macon, Mason, Menard and 1 more40 min
Jun 10, 11:12 PM CDTTornado Warning Tornado observedILXChristian, Logan, Macon, Sangamon34 min
Jun 10, 11:14 PM CDTTornado WarningILXDeWitt, Logan16 min
Jun 10, 11:28 PM CDTTornado WarningILXLogan, Macon, Piatt47 min
Jun 10, 11:30 PM CDTSevere Thunderstorm WarningILXChristian, Cumberland, Logan, Macon, Moultrie, Piatt and 2 more60 min
Jun 10, 11:39 PM CDTTornado WarningILXChristian, Macon, Moultrie, Shelby35 min
Jun 10, 11:45 PM CDTTornado WarningILXChristian, Macon, Moultrie, Piatt, Shelby28 min
Jun 10, 11:46 PM CDTFlash Flood WarningILXMcLean, Tazewell, Woodford4 hr
Jun 10, 11:48 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Macon, Piatt57 min
Jun 10, 11:51 PM CDTTornado Warning Tornado observedILXDeWitt, Piatt25 min
Jun 11, 12:09 AM CDTRiver Flood WarningILXFulton, Knox60 hr
Jun 11, 12:12 AM CDTTornado WarningILXChampaign, Douglas19 min
Jun 11, 12:19 AM CDTSevere Thunderstorm WarningILXChampaign, Douglas, Moultrie, Piatt24 min
Jun 11, 2:11 AM CDTFlash Flood WarningILXSangamon3 hr
Jun 11, 2:32 AM CDTFlash Flood WarningILXMacon56 min
Jun 11, 6:17 AM CDTRiver Flood WarningILXMcLean, Tazewell, Woodford16 hr
Jun 11, 11:37 AM CDTRiver Flood WarningILXCass, Fulton, Mason37 days
Jun 11, 11:38 AM CDTRiver Flood WarningILXBrown, Cass, Morgan, Schuyler38 days
Jun 11, 11:47 AM CDTSevere Thunderstorm WarningILXKnox43 min
Jun 11, 12:34 PM CDTSpecial Weather StatementILXKnox26 min
Jun 11, 1:04 PM CDTSpecial Weather StatementILXPeoria26 min
Jun 11, 4:49 PM CDTSevere Thunderstorm WarningILXMarshall, Woodford41 min
Jun 11, 4:56 PM CDTTornado WarningILXMarshall, Peoria, Woodford36 min
Jun 11, 5:11 PM CDTTornado Warning EmergencyTornado observedCatastrophic damage threatILXMarshall14 min
Jun 11, 5:12 PM CDTSevere Thunderstorm WarningILXFulton, Knox, Peoria48 min
Jun 11, 5:15 PM CDTTornado WarningILXWoodford14 min
Jun 11, 5:19 PM CDTTornado WarningILXFulton, Mason, Tazewell41 min
Jun 11, 5:30 PM CDTSevere Thunderstorm WarningILXFulton, Schuyler60 min
Jun 11, 5:31 PM CDTTornado WarningILXFulton, Peoria31 min
Jun 11, 5:40 PM CDTFlash Flood WarningILXFulton, Peoria5 hr
Jun 11, 5:49 PM CDTSevere Thunderstorm Warning Considerable damage threatILXMason, Peoria, Tazewell41 min
Jun 11, 5:51 PM CDTSevere Thunderstorm Warning Considerable damage threatILXCass, Mason, Menard39 min
Jun 11, 5:59 PM CDTTornado WarningILXCass, Mason, Schuyler31 min
Jun 11, 6:10 PM CDTSevere Thunderstorm Warning Considerable damage threatILXMcLean, Tazewell, Woodford65 min
Jun 11, 6:14 PM CDTSevere Thunderstorm Warning Considerable damage threatILXDeWitt, Logan, Macon61 min
Jun 11, 6:15 PM CDTTornado WarningILXTazewell, Woodford17 min
Jun 11, 6:30 PM CDTSevere Thunderstorm Warning Considerable damage threatILXCass, Mason, Menard, Morgan, Sangamon45 min
Jun 11, 6:34 PM CDTTornado WarningILXMcLean10 min
Jun 11, 6:45 PM CDTSevere Thunderstorm Warning Considerable damage threatILXChampaign, DeWitt, McLean, Macon, Piatt60 min

Nearby

Flood Watches in Illinois, 2026Every flood watch in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.