Flood Advisory
NWS Chicago IL ยท US
Details
Flood Advisory In Effect Until 315 AM CDT Early This Morning
- Event
- Flood Advisory
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Minor
- Certainty
- Likely
- Response
- Avoid
Description
What
Flooding caused by excessive rainfall is expected.
Where
Southern De Kalb County in north central Illinois... Northern La Salle County in north central Illinois... Lee County in north central Illinois...
When
Until 315 AM CDT.
Impacts
Creeks and streams may rise out of their banks. Roads and streets may be flooded.
Additional details
- At 1213 AM CDT, Doppler radar indicated heavy rain due to training thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 2 inches of rain have fallen. - Additional rainfall amounts in excess of 1 to 3 inches are possible over the area overnight which may result in additional flooding. - Some locations that will experience flooding include... Sandwich, Mendota, Amboy, Sheridan, Shabbona, Lake Holiday, Hinckley, Somonauk, Earlville, Waterman, Serena, Leland, Paw Paw, Sublette, Woodhaven Lakes, Millington, Lee, Compton, Troy Grove, Nelson, West Brooklyn, Harmon, Triumph, Prairie Center and Lee Center. - http://www.weather.gov/safety/flood
Instructions
A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Affected areas
- De Kalb, IL
- La Salle, IL
- Lee County, IL
Public contact
- Issuer
- NWS Chicago IL
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~52s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2YKXTMZ3ZQ9ZWVCW8EFF69R
- Identifier
- urn:oid:2.49.0.1.840.0.262cee572d5d3634a91425380a065add4ceff39b.001.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Chicago IL
- AWIPS ID
- CAPLOT
- NWWS sequence
- nwws_processor.7904
- WMO heading
- XOUS53
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 53
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | FAY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | FLSLOT |
| WMOidentifier | WGUS83 KLOT 200516 |
| NWSheadline | FLOOD ADVISORY IN EFFECT UNTIL 315 AM CDT EARLY THIS MORNING |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.NEW.KLOT.FA.Y.0121.260920T0516Z-260920T0815Z/ |
| eventEndingTime | 2026-09-20T03:15:00-05:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- De Kalb, IL
- La Salle, IL
- Lee County, IL
| Name | Value |
|---|---|
| SAME | 017037 |
| SAME | 017099 |
| SAME | 017103 |
| UGC | ILC037 |
| UGC | ILC099 |
| UGC | ILC103 |
- Polygons
- 41.8,-89.63 41.79,-88.6 41.45,-88.6 41.45,-89.17 41.58,-89.17 41.58,-89.39 41.59,-89.63 41.8,-89.63