January 16-17, 2017: Heavy Rainfall and Thunderstorms

• The Rockford two day total was 1.38".  The calendar rainfall total on Monday, January 16th was 1.01".  This was a daily record, breaking the one from 1935 (0.85").  This was also the highest January daily precipitation total at Rockford since January 29, 2001 (1.34").

• For Chicago, the two day rainfall total was 1.34".  That was the highest two day January precipitation total in four year, since January 29-30, 2013 (1.78").

• The heavy rainfall on frozen ground caused high runoff and flooding of ditches and some creeks.  There were also some roads that had standing water.

• Thunderstorms were observed at Chicago O'Hare International Airport.  This was the second day this month with storms (also January 11th).  This was the first January with two thunderstorm days at Chicago since January 2013.

Public Information Statement
National Weather Service Chicago IL
0935 AM CST Tue Jan 17 2017

...Morning Rainfall Roundup...

   The following are rain amounts for the previous 24-hours
   as measured in the morning by NWS Cooperative Observers
   and CoCoRaHS observers.
   Observations are usually taken between 6 AND 8 AM.

   24-hour rainfall amounts
       for Tuesday(01/17/17)...


Illinois                                       Rain
  Location (County):                           fall (inches)

  Genoa (De Kalb)..............................1.66
  Elgin (Kane).................................1.65
  Rochelle (Ogle)..............................1.64
  Dixon (Lee)..................................1.63
  Woodstock 4SW (McHenry)......................1.57
  De Kalb (De Kalb)............................1.51
  Lake Villa 1SSW (Lake).......................1.50
  Hoffman Estates 5W (Cook)....................1.49
  Mundelein 2WNW (Lake)........................1.49
  Lincolnwood 2E (Cook)........................1.48
  Elgin (Kane).................................1.47
  Elgin 1S (Kane)..............................1.47
  Dixon 2SW (Lee)..............................1.46
  Mundelein (Lake).............................1.46
  De Kalb (De Kalb)............................1.45
  Elgin 2W (Kane)..............................1.44
  Mundelein (Lake).............................1.43
  Rochelle (Ogle)..............................1.43
  Rogers Park 2SW (Cook).......................1.41
  Lincolnwood 3E (Cook)........................1.41
  Lake Zurich (Lake)...........................1.41
  Elk Grove Village 2WSW (Cook)................1.39
  Barrington (Lake)............................1.38
  Chicago 6ESE (Cook)..........................1.38
  Cortland (De Kalb)...........................1.38
  Rockford (Winnebago).........................1.38
  Geneva 4WSW (Kane)...........................1.37
  Highwood 1S (Lake)...........................1.37
  Oak Park 2S (Cook)...........................1.36
  Lakemoor 2NW (McHenry).......................1.35
  Cary (McHenry)...............................1.35
  Ohare (Cook).................................1.34
  Lily Lake 2E (Kane)..........................1.33
  St. Charles 6NW (Kane).......................1.32
  Riverwoods (Lake)............................1.32
  Gurnee 2W (Lake).............................1.31
  Algonquin 1N (McHenry).......................1.31
  Lisle Morton Arb (Du Page)...................1.31
  Countryside 1ENE (Cook)......................1.30
  Elmhurst 2SE (Du Page).......................1.30
  Oak Park 1NNE (Cook).........................1.29
  Fox Lake 2SE (Lake)..........................1.29
  Sugar Grove 1NE (Kane).......................1.28
  Elmhurst 1ESE (Du Page)......................1.27
  Aurora 4NE (Du Page).........................1.27
  Sugar Grove 1ENE (Kane)......................1.27
  Wonder Lake 1WNW (McHenry)...................1.27
  Downers Grove 0.4NNE (Du Page)...............1.26
  Elmhurst (Du Page)...........................1.26
  Lombard 1NNW (Du Page).......................1.26
  North Aurora 2NE (Kane)......................1.26
  Gurnee 2NE (Lake)............................1.26
  Buffalo Grove 2N (Lake)......................1.26
  Villa Park 1NW (Du Page).....................1.25
  Polo (Ogle)..................................1.25
  Mount Prospect 3NE (Cook)....................1.24
  Glen Ellyn 2SSE (Du Page)....................1.24
  Burr Ridge 2SW (Du Page).....................1.24
  Batavia 1WSW (Kane)..........................1.24
  Waukegan (Lake)..............................1.24
  Batavia 1WNW (Kane)..........................1.23
  Dixon 3NNW (Lee).............................1.23
  Woodstock 5nw (McHenry)......................1.22
  Aurora (Kane)................................1.20
  Dekalb (De Kalb).............................1.19
  Park Ridge 1WNW (Cook).......................1.19
  Beach Park 1W (Lake).........................1.19
  Lincolnshire 1.3WSW (Lake)...................1.19
  Batavia (Kane)...............................1.18
  Earlville 3S (La Salle)......................1.17
  Elk Grove Village 1ESE (Cook)................1.17
  Somonauk 2NE (De Kalb).......................1.17
  Batavia 2WNW (Kane)..........................1.17
  Ottawa 2N (La Salle).........................1.16
  Elburn (Kane)................................1.15
  Capron (Boone)...............................1.15
  Montgomery 1SSE (Kendall)....................1.15
  Elburn (Kane)................................1.15
  Lincolnshire 1N (Lake).......................1.15
  Mendota (La Salle)...........................1.15
  Ottawa (La Salle)............................1.15
  Plainfield (Will)............................1.15
  Park Ridge (Cook)............................1.14
  Paw Paw (Lee)................................1.13
  Hebron (McHenry).............................1.12
  Ottawa 1NW (La Salle)........................1.12
  Rockford 2ENE (Winnebago)....................1.10
  West Chicago (Du Page).......................1.09
  Plainfield 5SW (Kendall).....................1.09
  Wheeling (Cook)..............................1.09
  Oswego 5SSE (Kendall)........................1.08
  Palatine 1E (Cook)...........................1.07
  Byron 3N (Ogle)..............................1.07
  Naperville 4SSW (Will).......................1.07
  Rockford 1NW (Winnebago).....................1.07
  Midway Coop (Cook)...........................1.03
  Marseilles (La Salle)........................1.03
  Chicago Ridge (Cook).........................1.01
  Rockford 3NE (Winnebago).....................1.01
  Peru (La Salle)..............................1.00
  Peotone (Will)...............................0.98
  Plainfield 2SSE (Will).......................0.98
  Peotone (Will)...............................0.98
  Joliet 2n (Will).............................0.97
  Aurora 4SE (Du Page).........................0.96
  Midway (Cook)................................0.96
  Streator 4ENE (La Salle).....................0.95
  Wilmington 6NW (Will)........................0.95
  Joliet Lock/dam (Will).......................0.95
  Romeoville (Will)............................0.95
  Worth (Cook).................................0.93
  Yorkville 2SE (Kendall)......................0.93
  Roscoe 2ESE (Winnebago)......................0.91
  Roscoe 2se (Winnebago).......................0.91
  Park Forest 1SW (Cook).......................0.90
  Lockport 1SE (Will)..........................0.89
  Oak Lawn (Cook)..............................0.88
  Coal City 4NNW (Grundy)......................0.87
  Aurora 4SE (Du Page).........................0.87
  Carbon Hill 3.1N (Grundy)....................0.87
  Homer Glen 2NW (Will)........................0.87
  Coal City 3N (Grundy)........................0.84
  Oak Lawn 2WNW (Cook).........................0.83
  Morris 6ESE (Grundy).........................0.83
  Palos Park 1SW (Cook)........................0.82
  New Lenox 3E (Will)..........................0.82
  Machesney Park 3ENE (Winnebago)..............0.82
  Aurora (Kane)................................0.80
  Mazon 0.5ENE (Grundy)........................0.80
  New Lenox 4SE (Will).........................0.80
  Morris (Grundy)..............................0.80
  Morris 2SSE (Grundy).........................0.78
  Park Forest (Cook)...........................0.78
  Homewood (Cook)..............................0.76
  Minooka (Grundy).............................0.76
  Wilmington 3SE (Will)........................0.74
  New Lenox 2SE (Will).........................0.73
  Romeoville (Will)............................0.70
  Alsip (Cook).................................0.68
  Manhattan 5ENE (Will)........................0.68
  Manhattan (Will).............................0.68
  Pontiac (Livingston).........................0.68
  Streator 1WSW (La Salle).....................0.67
  Joliet (Will)................................0.65
  Bonfield 4WSW (Kankakee).....................0.62
  Beecher 3SSE (Will)..........................0.59
  Manhattan 1ESE (Will)........................0.58
  Dwight (Livingston)..........................0.55
  Bourbonnais (Kankakee).......................0.54
  Belvidere (Boone)............................0.48
  Steward (Lee)................................0.48
  Lansing (Cook)...............................0.44
  Pontiac 1SE (Livingston).....................0.40
  St Anne (Kankakee)...........................0.36
  Ashkum 5.6E (Iroquois).......................0.35
  Chatsworth (Livingston)......................0.30
  Elburn (Kane)................................0.30
  Chatsworth (Livingston)......................0.30
  Fairbury (Livingston)........................0.27
  Watseka 6.9WNW (Iroquois)....................0.26
  Kankakee (Kankakee)..........................0.25
  Gibson 3WNW (Ford)...........................0.22
  Paxton (Ford)................................0.22
  Watseka (Iroquois)...........................0.21
  Cissna Park 1S (Iroquois)....................0.18
  Botanic Gardens (Cook).......................0.15

Indiana                                        Rain
  Location (County):                           fall (inches)

  Valparaiso 6WSW (Porter).....................0.91
  Dyer 1WNW (Lake).............................0.85
  Crown Point (Lake)...........................0.82
  Crown Point 1N (Lake)........................0.82
  Portage 1ESE (Porter)........................0.82
  Crown Point 2WSW (Lake)......................0.79
  Gary 5ENE (Lake).............................0.78
  Valparaiso 7WSW (Porter).....................0.78
  Valparaiso 3WSW (Porter).....................0.77
  Valparaiso 2WNW (Porter).....................0.75
  Winfield 1NE (Lake)..........................0.74
  (w9mal)Merrillville 2NNW (Lake)..............0.73
  Valparaiso 4SW (Porter)......................0.71
  Portage 3E (Porter)..........................0.71
  Valparaiso 6SSW (Porter).....................0.68
  Porter 1S (Porter)...........................0.68
  St. John (Lake)..............................0.67
  (kb9f)Valparaiso 4S (Porter).................0.62
  Valparaiso (Porter)..........................0.61
  Hebron 4NE (Porter)..........................0.59
  De Motte 4SW (Jasper)........................0.36
  Lake Village (Newton)........................0.36
  De Motte 1NNW (Jasper).......................0.32
  Remington (Jasper)...........................0.31
  (w9opr)Wheatfield 1ENE (Jasper)..............0.25
  Rensselaer 2SSW (Jasper).....................0.22
  Rensselaer 8ENE (Jasper).....................0.22
  Remington (Jasper)...........................0.21
  De Motte 6S (Jasper).........................0.16
  Morocco (Newton).............................0.16
  Mount Ayr 2NNE (Newton)......................0.15
  Rensselaer (Jasper)..........................0.13

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