Chicago’s NOT BEEN ALONE in the country with its gray skies and heavy precip of the past 24 hours. It’s been 7 days since the sun has shone in any significant way here in Chicago (there were brief peeks of sun this morning before clouds thickened).

A list of 2-day local rainfall values are included with this post as compiled from COCORAHs volunteer weather observers by my WGN-TV meteorological colleague Mark Carroll. Mark has also broken out some of the heavier statewide rain totals from COCORAHS observers.

It’s worth noting isolated lightning accompanied the rains in Chicago last night–an indication convective cells helped in generating the heavy rains–1.53″ at Midway and 1.54″ at O’Hare–the biggest to occur here in the 3 months since 1.47″ fell at O’Hare Sept 11-12. “Convective rains” occur from especially tall clouds and are therefore yield heavier totals than in surrounding areas. They are also better suited to lightning production because the facilitate charge separation in the clouds which leads to lightning disharges. I’ve posted 24 hour lightning analyses–which also show the prolific lightning which occurred in the Gulf States with the horrific tornadic t-storms which occurred there.

CHECK OUT THE NATIONAL 7-DAY PER CENT OF NORMAL PRECIP maps and a National Weather Service (NWS) 3-day snowfall analysis which indicates all the snow which has fallen in the 72 hours through 6am CST Thursday morning.

HERE ARE THE COCRAHS 2-DAY RAINFALL TALLIES BROKEN OUT BY MY WGN COLLEAGUE MARK CARROLL:

  • IL-WL-99 Manhattan 1.9 SE 1.87
  • IL-DP-141 Glen Ellyn 1.1 WSW 1.86
  • IL-GY-20 Morris 2.5 SSE 1.86
  • IL-WL-16 Homer Glen 0.8 ENE 1.86
  • IL-DP-85 Villa Park 1.0 NW 1.85
  • IL-DP-184 Wheaton 0.8 WNW 1.85
  • IL-KD-125 Plano 1.6 NW 1.85
  • IL-WL-131 Homer Glen 0.7 NNE 1.83
  • IL-WL-166 Naperville 3.6 SE 1.83
  • IL-WL-73 Wilmington 2.6 SE 1.82
  • IL-WL-67 Channahon 2.5 SSE 1.80
  • IL-DP-79 Burr Ridge 1.9 SW 1.79
  • IL-DP-102 Bolingbrook 2.7 NE 1.79
  • IL-KK-48 Bradley 0.7 SW 1.79
  • IL-WL-151 New Lenox 1.5 W 1.79
  • IL-DP-176 Winfield 0.6 SSW 1.77
  • IL-DP-163 Lombard 1.2 E 1.76
  • IL-WL-92 Naperville 4.0 SSW 1.76
  • IL-WL-175 Joliet 0.7 WNW 1.76
  • IL-CK-14 Chicago 5.5 ESE 1.75
  • IL-LK-125 Volo 0.3 SSE 1.75
  • IL-CK-75 Elk Grove Village 2.2 WSW 1.74
  • IL-CK-367 Mount Prospect 0.2 NNE 1.74
  • IL-DP-40 Lombard 1.0 NNW 1.74
  • IL-DP-164 West Chicago 3.5 SE 1.74
  • IL-GY-34 Morris 4.5 NW 1.74
  • IL-GY-37 Mazon 2.4 SE 1.74
  • IL-KK-47 Herscher 2.5 ESE 1.74
  • IL-WL-174 Joliet 0.8 E 1.74
  • IL-CK-131 Schaumburg 2.0 E 1.73
  • IL-GY-28 Morris 1.5 SW 1.73
  • IL-LK-120 Wadsworth 1.4 S 1.73
  • IL-GY-16 Morris 6.4 ESE 1.72
  • IL-KD-5 Montgomery 0.8 SSE 1.72
  • IL-CK-325 Mount Prospect 1.3 SSE 1.70
  • IL-DP-178 Villa Park 0.8 ESE 1.70
  • IL-GY-1 Carbon Hill 3.1 N 1.70
  • IL-LK-119 Lake Zurich 1.4 W 1.70
  • IL-WL-180 Mokena 4.4 WNW 1.70
  • IL-MCH-108 Spring Grove 1.2 ESE 1.69
  • IL-KK-45 Kankakee 1.4 WSW 1.68
  • IL-KK-49 Kankakee 4.9 NW 1.67
  • IL-WL-63 New Lenox 1.8 SE 1.67
  • IL-CK-63 Elk Grove Village 0.6 ESE 1.66
  • IL-DP-101 Aurora 3.8 SE 1.66
  • IL-WL-165 Frankfort 1.3 ESE 1.66
  • IL-CK-322 Arlington Heights 0.8 NNW 1.65
  • IL-DP-38 Elmhurst 0.4 SW 1.65
  • IL-DP-175 Naperville 0.9 ENE 1.65
  • IL-KN-22 Geneva 1.0 SSW 1.65
  • IL-WL-42 Mokena 1.3 W 1.65
  • IL-WL-51 Plainfield 2.4 SSE 1.65
  • IL-KK-39 Herscher 3.3 E 1.64
  • IL-CK-346 Palatine 1.2 NW 1.63
  • IL-KN-64 St. Charles 0.1 E 1.63
  • IL-WL-147 New Lenox 2.0 ESE 1.63
  • IL-CP-126 Urbana 2.6 ENE 1.62
  • IL-KD-126 Oswego 1.1 ESE 1.62
  • IL-KD-127 Oswego 1.7 WSW 1.62
  • IL-WL-182 Plainfield 3.9 SSW 1.62
  • IL-CK-74 Oak Park 1.3 NNE 1.61
  • IL-CK-336 Evanston 0.8 ESE 1.61
  • IL-KD-24 Oswego 5.0 SSE 1.61
  • IL-WL-97 New Lenox 3.3 E 1.61
  • IL-KN-78 Geneva 1.3 SSW 1.60
  • IL-KN-123 Aurora 2.8 WSW 1.60
  • IL-LK-15 Bannockburn 0.5 ESE 1.60
  • IL-WL-142 Mokena 3.4 WNW 1.60
  • IL-CK-294 Palatine 1.4 NNE 1.59
  • IL-DP-150 Bloomingdale 1.2 ESE 1.59
  • IL-KN-33 North Aurora 1.5 NE 1.59
  • IL-KN-115 Aurora 3.5 ESE 1.59
  • IL-KN-133 Geneva 0.9 E 1.59
  • IL-KN-135 Batavia 0.8 W 1.59
  • IL-LK-69 Highwood 0.9 S 1.59
  • IL-LK-100 Long Lake 0.4 S 1.59
  • IL-CK-106 Hoffman Estates 4.6 W 1.58
  • IL-LK-74 Mundelein 1.6 WNW 1.58
  • IL-WL-96 Wilmington 6.3 NW 1.58
  • IL-CK-347 Streamwood 1.1 WSW 1.57
  • IL-DP-16 Aurora 3.6 SE 1.57
  • IL-LK-13 Lake Bluff 1.3 W 1.57
  • IL-LK-78 Libertyville 1.8 ESE 1.57
  • IL-CK-345 Franklin Park 0.5 SSE 1.56
  • IL-KN-23 Batavia 1.5 WNW 1.56
  • IL-KD-34 Plainfield 4.8 SW 1.56
  • IL-LK-42 Gurnee 1.6 W 1.56
  • IL-CK-278 Hoffman Estates 1.6 SE 1.55
  • IL-GY-11 Morris 4.8 NNW 1.55
  • IL-LK-127 Libertyville 1.6 SE 1.53
  • IL-WL-20 Manhattan 4.7 ENE 1.53
  • IL-CK-98 La Grange Park 0.7 SSW 1.52
  • IL-CK-149 Oak Lawn 0.5 SSW 1.52
  • IL-KN-121 Geneva 1.3 NW 1.52
  • IL-LK-16 Buffalo Grove 1.5 N 1.52
  • IL-LK-81 Lake Villa 2.3 WSW 1.52
  • IL-CK-306 Oak Forest 0.6 N 1.51
  • IL-CK-384 Chicago 3.6 NNW 1.51
  • IL-KN-128 Batavia 3.4 WSW 1.51
  • IL-CK-50 Palos Park 1.3 SW 1.50
  • IL-CK-285 Harwood Heights 0.4 NNE 1.50
  • IL-MCH-110 Algonquin 1.4 WSW 1.50
  • HIGHEST STATEWIDE VALUES
  • IL-JK-32 Makanda 1.5 SSE 2.66
  • IL-MC-3 Brookport 7.3 ENE 2.65
  • IL-UN-6 Cobden 0.8 SSE 2.62
  • IL-UN-8 Cobden 4.1 ENE 2.62
  • IL-UN-12 Cobden 4.2 N 2.60
  • IL-WF-3 Germantown Hills 0.5 SSW 2.56
  • IL-PM-6 McNabb 1.4 NW 2.46
  • IL-MC-1 Belknap 11.1 ESE 2.36
  • IL-WM-14 Carterville 1.6 SSE 2.34
  • IL-LS-60 Peru 0.7 ENE 2.32
  • IL-JK-29 Carbondale 4.4 SW 2.31
  • IL-JH-2 Goreville 3.8 NE 2.30
  • IL-SP-8 Winslow 4.3 ESE 2.30
  • IL-JK-18 Carbondale 3.8 S 2.27
  • IL-LE-22 Amboy 0.5 SSW 2.27
  • IL-BU-5 Princeton 1.1 SE 2.25
  • IL-SP-29 Freeport 1.5 E 2.25
  • IL-LG-50 Hartsburg 3.2 E 2.24
  • IL-MCL-9 Danvers 1.7 WNW 2.24
  • IL-WM-18 Creal Springs 2.2 W 2.24
  • IL-WF-14 El Paso 5.2 NNW 2.24
  • IL-GL-4 Junction 1.7 SSE 2.23
  • IL-JK-19 Murphysboro 2.8 NNE 2.22
  • IL-JK-25 Carbondale 3.7 S 2.22
  • IL-SG-17 Springfield 4.4 W 2.22
  • IL-LE-23 Sublette 3.1 WNW 2.17
  • IL-MH-5 Henry 1.4 SW 2.17
  • LAKE COUNTY, IN
  • IN-LK-99 St. John 2.8 SE 1.06
  • IN-LK-46 St. John 0.2 WSW 0.94
  • IN-LK-107 Lowell 3.1 NNW 0.80
  • IN-LK-63 Gary 4.8 ENE 0.67