Flash Flood Watch Extened - Additional Heavy Rainfall Likely Late

The Flash Flood Watch has been extended for Winnebago, Boone, McHenry, Ogle, Lee and DeKalb counties until 10am Friday and through 7am for Stephenson, Jo Daviess, Carroll and Whiteside counties.  The watch was cancelled for southern Wisconsin.

Rainfall totals over north-central and northeast Illinois range anywhere from 1-3 inches, with an additional 1-2 inches possible through Friday morning.  Most of the heavy rain through Thursday afternoon occurred over Winnebago, Boone, McHenry, Ogle and DeKalb counties. 

While Rockford has had a little bit of a break in some of the heavier rainfall, a band of light to moderate rain arcs from northwest Illinois into DeKalb County.  A Flood Advisory has now been issued for Ogle, Lee and southern DeKalb counties until 9:15pm.  Urban and small stream flooding is possible in the advisory area, as well as with other creeks and streams throughout the Stateline.

Below are a list of the rainfall totals we've received so far:

(9:27:26 PM) nwsbot: Local Storm Report by NWS LOT: 5 S Rockford [Winnebago Co, IL] cocorahs reports HEAVY RAIN of M3.46 INCH at 06:30 PM CDT -- rainfall since approximately 8 am thursday.

(9:22:53 PM) nwsbot: Local Storm Report by NWS LOT: 5 S Winnebago [Ogle Co, IL] cocorahs reports HEAVY RAIN of M3.46 INCH at 06:30 PM CDT -- rainfall since approximately 8 am thursday.

(7:19:10 PM) nwsbot: Local Storm Report by NWS LOT: Somonauk [De Kalb Co, IL] trained spotter reports HEAVY RAIN of M2.40 INCH at 07:05 PM CDT -- rainfall for today. 2.10 inches between 605 and 705 pm.

(6:17:31 PM) nwsbot: Local Storm Report by NWS LOT: 4 SSE Loves Park [Winnebago Co, IL] trained spotter reports HEAVY RAIN of M1.30 INCH at 06:13 PM CDT -- since this morning. tulip and travertine.

(6:01:47 PM) nwsbot: Local Storm Report by NWS LOT: 2 S Winnebago [Winnebago Co, IL] broadcast media reports HEAVY RAIN of M1.03 INCH at 03:30 PM CDT -- wtvo studios.


(5:57:00 PM) nwsbot: Local Storm Report by NWS LOT: Roscoe [Winnebago Co, IL] broadcast media reports HEAVY RAIN of M1.25 INCH at 03:30 PM CDT -- relayed by wtvo Rockford.


(5:56:21 PM) nwsbot: Local Storm Report by NWS LOT: Stillman Valley [Ogle Co, IL] broadcast media reports HEAVY RAIN of M1.60 INCH at 03:30 PM CDT -- relayed by wtvo Rockford.


(5:55:35 PM) nwsbot: Local Storm Report by NWS LOT: Cherry Valley [Winnebago Co, IL] broadcast media reports HEAVY RAIN of M1.03 INCH at 03:30 PM CDT -- relayed by wtvo Rockford.