Chicago, IL

8:50 PM CDT on May 23, 2013 (GMT -0500)
Elev: 620 ft
Lon: 87.6° W
Lat: 41.9° N
Source
Rapid Fire Updates™
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Tropical Weather: Invest 91E (East Pacific)
News
The Future That Was: America's Space Program, 1915-2011
May 23, 2013
Walk through the history of the U.S. space program with this huge archive of vintage photos from NASA's library of photographs taken throughout the history of manned flight, jet engine development, and the creation of the manned missions to the moon and the Space Shuttle program.
Iceland Tourists Get Stuck on Floating Iceberg
May 23, 2013
Four tourists in Iceland got an expected trip when they set up a picnic on a floating iceberg.
One Block: How Neighbors Saw Deadly Twister's Path
May 23, 2013
See the stories of just one block of families affected by the massive Oklahoma tornado.
School Storm Protection Spotty in Tornado Zones
May 23, 2013
Dollars-and-cents reality has resulted in a patchwork of protection for schools in tornado-prone areas sometimes with tragic results.
'Good Job, Teach': Teachers Emerge as Heroes in Moore
May 22, 2013
In the wake of the devastating tornado that struck Moore, Okla., teachers and educators emerge as heroes.
Billions in Damage: Costliest Tornadoes in U.S. History
May 23, 2013
The Moore tornado may have been among the costliest in U.S. history. We count down the top 5 prior to this tornado.
Notorious Moore, Oklahoma City Tornado History
May 22, 2013
The long, tornadic history of the Oklahoma City metro area.
Tornado Survivor: 'It Took 30 Seconds For It All to Be Gone'
May 22, 2013
Moore, Okla. tornado survivor Bernie Morris recalls the chaos and devastation of the May 20 twister that struck the area.
$2 Billion in Okla. Tornado Damage Means Hard Recovery
May 23, 2013
Officials say the focus is now on cleanup in the wake of the deadly EF5 tornado in Moore, Okla.
Tornado Doctor Sees "Utter Destruction"
May 22, 2013
When a rare EF5 tornado hit Moore, Okla., on Monday afternoon, the citys medical professionals ran toward the destruction not away from it.
After the Storm: Deadly Flesh-Eating Infections?
May 22, 2013
For survivors of Mondays devastating tornado that killed at least 24 and injured 120 more in suburban Oklahoma, the health threat might not end with the storm.
Evacuated Residents of N.D. City to Return Friday
May 23, 2013
More flooding became a nuisance in North Dakota, creating worries of a possible dam break.
Joplin's New Hospital is First of Its Kind
May 22, 2013
Two years after the EF5 tornado wrecked St. Johns Regional Medical Center in Joplin, construction continues on a new, sturdier hospital.
Joplin and Moore Chillingly Similar
May 22, 2013
Photos reveal the terror after an EF5 tornado slammed Joplin in May 2011.
Jersey Shore Readies for Post-Sandy Summer
May 23, 2013
The Jersey Shore has made a remarkable comeback after being devastated by Hurricane Sandy. Now, it's ready to welcome tourists back to its shores.
Interactive: Damage Path of Moore Tornado
May 23, 2013
Interactive map shows survey results from the National Weather Service.
Parents Face Tough Choice When Tornadoes Near
May 22, 2013
With an ominous storm approaching, parents in Moore, Okla. had a heart-breaking choice to make:
Rescue Worker Doesn't Give Up Despite Odds
May 22, 2013
The possibility that one child was left in the rubble of Plaza Towers Elementary School kept rescue crews working to sift through debris late Tuesday night.
No New Funds Needed for Okla. Tornado Recovery
May 22, 2013
Top lawmakers and officials said Tuesday that the federal government has plenty of money on hand to pay for recovery efforts in the wake of the devastating tornado that struck Oklahoma.
Teachers Credited With Saving Students in Okla.
May 21, 2013
Students and parents recounted stories Tuesday of brave teachers who sheltered their pupils, in some cases by herding them into a closet and a restroom amid the fear and panic.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Thursday, May 23, 2013.

Severe storms developed over the Southern Plains from northern Texas through northern Oklahoma on Thursday. A trough of low pressure lingered over the region, which pulled moisture and energy in from the Gulf of Mexico. This allowed for showers and thunderstorms to develop in these areas, some of which turned severe with large hail, damaging winds, and periods of heavy rainfall. A brief tornado was reported near Cedar Hill, Texas. Hail 2.5 inches in diameter was reported near Davis, Oklahoma and 65 mph winds were reported at Newcastle and Dickson, Oklahoma. Rainfall totals varied over 2 inches with this system. Oklahoma City reported a mid-day total of 2.92 inches of rain.

Meanwhile in the East, a trough of low pressure over the East Coast allowed for a strong cold front to stretch from the Northeast through the Eastern Valleys. Moisture ahead of this front allowed for showers to develop from the Carolinas through Maine, with some areas of thunderstorms. There was a slight chance that these storms would turn severe from Virginia through New Hampshire, but severe storms have not developed.

Meanwhile Out West, a low pressure system mover the Rockies maintained widespread showers across the Pacific Northwest and Northern Rockies. Strong winds developed ahead of this system from eastern Montana through western Colorado. Gillette, Wyoming reported maximum winds up to 56 mph.
Weather Underground midday recap for Thursday, May 23, 2013.

Severe storms developed over the Southern Plains from northern Texas through northern Oklahoma on Thursday. A trough of low pressure lingered over the region, which pulled moisture and energy in from the Gulf of Mexico. This allowed for showers and thunderstorms to develop in these areas, some of which turned severe with large hail, damaging winds, and periods of heavy rainfall. A brief tornado was reported near Cedar Hill, Texas. Hail 2.5 inches in diameter was reported near Davis, Oklahoma and 65 mph winds were reported at Newcastle and Dickson, Oklahoma. Rainfall totals varied over 2 inches with this system. Oklahoma City reported a mid-day total of 2.92 inches of rain.

Meanwhile in the East, a trough of low pressure over the East Coast allowed for a strong cold front to stretch from the Northeast through the Eastern Valleys. Moisture ahead of this front allowed for showers to develop from the Carolinas through Maine, with some areas of thunderstorms. There was a slight chance that these storms would turn severe from Virginia through New Hampshire, but severe storms have not developed.

Meanwhile Out West, a low pressure system mover the Rockies maintained widespread showers across the Pacific Northwest and Northern Rockies. Strong winds developed ahead of this system from eastern Montana through western Colorado. Gillette, Wyoming reported maximum winds up to 56 mph.
More News Articles

Chicago Weather at a Glance

Updated 8:50 PM CDT
Elevation
645 ft
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Now
Partly Cloudy
Partly Cloudy
Temperature
45.3 °F
Feels Like 45 °F
Wind(mph)
2.0
Sunrise / Set
5:23 AM
8:11 PM
Moon
Waxing Gibbous
Tonight
Clear 46 °F
Clear
Tomorrow
Clear 59 °F
Clear
Tomorrow Night
Partly Cloudy 48 °F
Partly Cloudy
Saturday
Chance of Rain 64 | 50 °F
Chance of Rain
20% chance of precipitation
Sunday
Chance of Rain 63 | 52 °F
Chance of Rain
40% chance of precipitation
Monday
Chance of a Thunderstorm 70 | 55 °F
Chance of a Thunderstorm
20% chance of precipitation
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
30.25 in
Visibility
10.0 miles
Clouds
Few 2500 ft
Moisture
Humidity
72%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KMDW 240051Z 36018G22KT 10SM FEW025 08/M01 A3023 RMK AO2 SLP241 T00831006
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Windchill
45 °F
Dew Point
37 °F
Wind
Speed / Dir
2.0 mph from East
Wind Gust
5.0 mph
Health
UV
0 out of 16
Pollen
5.60 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Moderate
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 46F. Breezy. Winds from the North at 10 to 25 mph with gusts to 30 mph.
Friday
clear Clear. High of 59F. Winds from the NNE at 5 to 10 mph.
Friday Night
nt_partlycloudy Clear in the evening, then partly cloudy. Low of 48F. Winds from the ENE at 5 to 10 mph.
Saturday
partlycloudy Partly cloudy with a chance of rain. High of 64F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Saturday Night
nt_partlycloudy Partly cloudy with a chance of rain, then a chance of rain after midnight. Low of 50F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Sunday
chancerain Partly cloudy with a chance of rain. High of 63F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Sunday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of rain. Low of 52F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Monday
mostlycloudy Overcast in the morning, then mostly cloudy with a chance of a thunderstorm and rain. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 20%.
Monday Night
nt_tstorms Mostly cloudy with thunderstorms. Low of 55F. Winds from the SSE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 1.2 in. possible.
Tuesday
cloudy Overcast with a chance of a thunderstorm. High of 75F. Winds from the SSW at 10 to 15 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 63F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.
Wednesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 81F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 20%.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 70F. Winds from the SSW at 10 to 15 mph.
Thursday
mostlycloudy Mostly cloudy. High of 86F. Breezy. Winds from the SSW at 15 to 20 mph.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 73F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Friday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 88F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 72F. Winds from the SSW at 10 to 15 mph. Chance of rain 40%.
Saturday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the SW at 10 to 15 mph. Chance of rain 40%.
Saturday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
Sunday
clear Clear. High of 82F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 66F. Winds less than 5 mph.
Monday
clear Clear. High of 82F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 66F. Winds from the SSE at 10 to 15 mph.
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Weather Forecast for Chicago IL

View Calendar 10-Day Forecast for station KILCHICA30

Thursday, 23
Chance of Rain
59 | 46 °F
Chance of Rain
Chance of
Precipitation
60%
Friday, 24
Clear
59 | 48 °F
Clear
Chance of
Precipitation
0%
Saturday, 25
Chance of Rain
64 | 50 °F
Chance of Rain
Chance of
Precipitation
20%
Sunday, 26
Chance of Rain
63 | 52 °F
Chance of Rain
Chance of
Precipitation
40%
Monday, 27
Chance of a Thunderstorm
70 | 55 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Tuesday, 28
Chance of a Thunderstorm
75 | 63 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Wednesday, 29
Chance of a Thunderstorm
81 | 70 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Thursday, 30
Mostly Cloudy
86 | 73 °F
Mostly Cloudy
Chance of
Precipitation
0%
Friday, 31
Chance of a Thunderstorm
88 | 72 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Saturday, 1
Chance of a Thunderstorm
88 | 64 °F
Chance of T-storms
Chance of
Precipitation
40%
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 46F. Breezy. Winds from the North at 10 to 25 mph with gusts to 30 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 49 51 | 44 51 | 38 50 | 40
Wind 12 mph NNE 26 mph North 23 mph North 15 mph North
Humidity 69% 73% 64% 68%
Chance of Precip. 60% 60% 10% 10%
Cloud Cover 98% 100% 68% 12%
Conditions Rain Showers Chance of Rain Mostly Cloudy Clear
Sunrise & Sunset
5:23 AM
8:11 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.76], Average RMSE [2.30]
The National Weather Service forecast quality is fair. MaxT RMSE [2.96], Average RMSE [1.63] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Friday
clear Clear. High of 59F. Winds from the NNE at 5 to 10 mph.
Friday Night
nt_partlycloudy Clear in the evening, then partly cloudy. Low of 48F. Winds from the ENE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 40 55 | 39 54 | 37 52 | 40
Wind 9 mph North 9 mph NNE 9 mph NE 4 mph ENE
Humidity 78% 54% 54% 64%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 4% 5% 10% 18%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:22 AM
8:12 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.38], Average RMSE [4.06]
The National Weather Service forecast quality is poor. MaxT RMSE [3.52], Average RMSE [3.09] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with a chance of rain. High of 64F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Saturday Night
nt_partlycloudy Partly cloudy with a chance of rain, then a chance of rain after midnight. Low of 50F. Winds from the East at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 39 55 | 40 56 | 41 54 | 40
Wind 2 mph ENE 5 mph ESE 7 mph East 4 mph East
Humidity 62% 57% 58% 58%
Chance of Precip. 0% 20% 20% 10%
Cloud Cover 38% 55% 58% 4%
Conditions Partly Cloudy Chance of Rain Chance of Rain Clear
Sunrise & Sunset
5:21 AM
8:13 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.68], Average RMSE [3.76]
The National Weather Service forecast quality is poor. MaxT RMSE [3.65], Average RMSE [3.15] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Sunday
chancerain Partly cloudy with a chance of rain. High of 63F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Sunday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of rain. Low of 52F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 42 59 | 47 60 | 50 57 | 48
Wind 5 mph East 7 mph SE 9 mph SE 11 mph SE
Humidity 60% 67% 69% 74%
Chance of Precip. 20% 10% 30% 20%
Cloud Cover 51% 0% 48% 100%
Conditions Chance of Rain Clear Chance of Rain Chance of a Thunderstorm
Sunrise & Sunset
5:21 AM
8:14 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.00], Average RMSE [2.78]
The National Weather Service forecast quality is poor. MaxT RMSE [3.71], Average RMSE [3.78] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Monday
mostlycloudy Overcast in the morning, then mostly cloudy with a chance of a thunderstorm and rain. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 20%.
Monday Night
nt_tstorms Mostly cloudy with thunderstorms. Low of 55F. Winds from the SSE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 1.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 50 61 | 54 67 | 57 59 | 56
Wind 13 mph ESE 14 mph SE 10 mph SE 12 mph SE
Humidity 77% 78% 69% 90%
Chance of Precip. 20% 10% 20% 40%
Cloud Cover 41% 8% 87% 55%
Conditions Chance of Rain Clear Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:20 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.53], Average RMSE [4.17]
The National Weather Service forecast quality is poor. MaxT RMSE [4.20], Average RMSE [4.56] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Tuesday
cloudy Overcast with a chance of a thunderstorm. High of 75F. Winds from the SSW at 10 to 15 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 63F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 59 71 | 62 73 | 64 67 | 60
Wind 11 mph South 14 mph SSW 14 mph SSW 15 mph SSW
Humidity 90% 75% 77% 81%
Chance of Precip. 50% 10% 10% 10%
Cloud Cover 97% 94% 99% 100%
Conditions Thunderstorm Overcast Overcast Overcast
Sunrise & Sunset
5:19 AM
8:16 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.55], Average RMSE [4.70]
The National Weather Service forecast quality is poor. MaxT RMSE [5.13], Average RMSE [4.86] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Wednesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 81F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 20%.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 70F. Winds from the SSW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 68 | 58 77 | 64 76 | 64 71 | 62
Wind 14 mph SSW 17 mph SW 13 mph SSW 12 mph SSW
Humidity 71% 63% 67% 68%
Chance of Precip. 20% 10% 10% 0%
Cloud Cover 100% 100% 89% 65%
Conditions Chance of a Thunderstorm Overcast Overcast Mostly Cloudy
Sunrise & Sunset
5:19 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.46], Average RMSE [4.80]
The National Weather Service forecast quality is poor. MaxT RMSE [6.53], Average RMSE [5.12] : Use NWS
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Thursday
mostlycloudy Mostly cloudy. High of 86F. Breezy. Winds from the SSW at 15 to 20 mph.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 73F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 60% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 58 80 | 62 79 | 63 75 | 62
Wind 12 mph SSW 16 mph SSW 14 mph SSW 17 mph South
Humidity 59% 52% 57% 60%
Chance of Precip. 0% 0% 10% 20%
Cloud Cover 76% 61% 89% 66%
Conditions Mostly Cloudy Partly Cloudy Overcast Chance of a Thunderstorm
Sunrise & Sunset
5:18 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.15], Average RMSE [7.14]
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Friday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 88F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 72F. Winds from the SSW at 10 to 15 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 62 79 | 65 77 | 71 74 | 70
Wind 18 mph SSW 17 mph SSW 13 mph SSW 12 mph SSW
Humidity 63% 64% 81% 86%
Chance of Precip. 30% 10% 10% 10%
Cloud Cover 85% 85% 85% 77%
Conditions Chance of a Thunderstorm Mostly Cloudy Mostly Cloudy Fog
Sunrise & Sunset
5:18 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.29], Average RMSE [6.42]
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Saturday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 88F. Winds from the SW at 10 to 15 mph. Chance of rain 40%.
Saturday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 75 | 68 77 | 65 75 | 62 71 | 56
Wind 10 mph SSW 10 mph SW 6 mph SW 5 mph SW
Humidity 79% 64% 63% 59%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 61% 53% 52% %
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:17 AM
8:19 PM
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Sunday
clear Clear. High of 82F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 66F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 51 77 | 65 75 | 62 70 | -9998
Wind 2 mph SW 10 mph SW 6 mph SW 3 mph East
Humidity 45% 64% 63% -9998%
Chance of Precip. 0% 10% 10% 0%
Cloud Cover % 53% 52% %
Conditions Clear Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
Sun does not rise
Source: BestForecast at 7:10 PM CDT on May 23, 2013
Descriptive Forecast
Monday
clear Clear. High of 82F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 66F. Winds from the SSE at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 51 81 | 63 76 | 71 72 | 70
Wind 2 mph SW 2 mph SE 3 mph ESE 13 mph South
Humidity 45% 54% 85% 94%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover % % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Active Notice: Public Information Statement  (US Severe Weather)
History & Almanac
May 23, 2013 Max Temp Min Temp
Normal (KMDW) 72 °F 54 °F
Record (KMDW) 92 °F (1977) 35 °F (1931)
Yesterday 73 °F 56 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
PM2.5
Yesterday Good
OZONE
Current Moderate
PM2.5
Current Good
OZONE
Thursday Good
OZONE
Friday Good
OZONE
Saturday Good
OZONE
Coastal Water Temperatures
Place Temperature
No Stations Reporting
Marine Forecast
Astronomy
May. 23, 2013 Rise Set
Actual Time 5:23 AM CDT 8:11 PM CDT
Civil Twilight 4:50 AM CDT 8:44 PM CDT
Nautical Twilight 4:09 AM CDT 9:26 PM CDT
Astronomical Twilight 3:21 AM CDT 10:13 PM CDT
Moon 6:43 PM CDT (5/23) 4:09 AM CDT (5/23)
Length Of Visible Light 15h 54m
Length of Day
14h 48m
Tomorrow will be 1m 38s longer.
Waxing Gibbous, 98% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
77 °F
Cairo
72 °F
Metropolis
69 °F
Macomb
69 °F
Carmi
69 °F
Mount Carmel
43 °F
Waukegan
43 °F
Chicago Lansing
46 °F
Chicago Midway
46 °F
Chicago
46 °F
Romeoville
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Chicago Midway 47 °F Partly Cloudy 7:51 PM CDT
Chicago 46 °F Clear 7:51 PM CDT
Chicago Executive 46 °F Clear 7:52 PM CDT
Gary 46 °F Partly Cloudy 7:45 PM CDT
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Flight To ETA Status
SWA33
Atlanta, GA 		KMDW 08:41PM On Time
SWA394
Nashville, TN 		KMDW 08:41PM On Time
SWA2688
Birmingham, AL 		KMDW 08:46PM On Time
SWA416
Tucson, AZ 		KMDW 08:46PM On Time
ASQ6114
Wichita, KS 		KORD 08:38PM On Time
TCF3512
Montreal, Quebec 		KORD 08:39PM On Time
AAL1746
Las Vegas, NV 		KORD 08:41PM On Time
AAL187
Boston, MA 		KORD 08:43PM On Time
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Type Condition
Flight Rule: VFR (KMDW)
Wind Speed: 18.0 kts.
Wind Dir: 89° (East)
Ceiling: Unlimited

METAR KMDW 240051Z 36018G22KT 10SM FEW025 08/M01 A3023 RMK AO2 SLP241 T00831006

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Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
West Loop, Chicago, IL 45.3 °F 45 °F 37 °F 72% East  at  2.0 mph 0.00 in / hr 645 ft 8:50 PM CDT Normal  
Chicago, IL 43.5 °F 41 °F 36 °F 76% WNW  at  5.0 mph - / hr 0 ft 8:50 PM CDT Rapid Fire  
U.S. Cellular Field, Chicago, IL 45.1 °F 40 °F 34 °F 64% NNE  at  10.1 mph 0.00 in / hr 594 ft 8:50 PM CDT Rapid Fire
Lincoln Park, Chicago, IL 40.0 °F 36 °F 30 °F 71% NE  at  6.0 mph - / hr 595 ft 7:48 PM CDT Normal  
Bucktown, Chicago, IL 44.1 °F 44 °F 35 °F 70% ESE  at  2.7 mph 0.00 in / hr 600 ft 8:50 PM CDT Rapid Fire  
DePaul Geography, Chicago, IL 44.2 °F 44 °F 39 °F 81% South  at  0.0 mph 0.00 in / hr 650 ft 8:46 PM CDT Rapid Fire
South Lakeview, Chicago, IL 43.2 °F 38 °F 33 °F 67% NNE  at  10.0 mph 0.00 in / hr 607 ft 8:50 PM CDT Rapid Fire  
West Lakeview, Chicago, IL 43.3 °F 43 °F 36 °F 75% NNE  at  2.0 mph 0.00 in / hr 636 ft 8:42 PM CDT Normal
Wrigleyville, Chicago, IL 43.3 °F 39 °F 34 °F 70% SSE  at  7.0 mph 0.00 in / hr 630 ft 8:50 PM CDT Rapid Fire
Lincoln Square, CHICAGO, IL 43.9 °F 40 °F 36 °F 73% NE  at  6.9 mph 0.00 in / hr 607 ft 8:50 PM CDT Rapid Fire  
Irving Park, Chicago, IL 43.6 °F 41 °F 36 °F 75% NNE  at  4.0 mph 0.00 in / hr 600 ft 8:50 PM CDT Rapid Fire  
North Park University, Chicago, IL 44.4 °F 42 °F 36 °F 73% ENE  at  4.0 mph 0.00 in / hr 617 ft 8:30 PM CDT Normal
Oak Park, IL, Oak Park, IL 45.1 °F 45 °F 36 °F 69% NE  at  1.0 mph 0.00 in / hr 617 ft 8:50 PM CDT Rapid Fire
Stickney, IL, Stickney, IL 44.0 °F 44 °F 35 °F 70% NNE  at  3.0 mph 0.00 in / hr 614 ft 8:50 PM CDT Rapid Fire  
Peterson Woods, Chicago, IL 45.0 °F 45 °F 36 °F 70% North  at  0.0 mph 0.00 in / hr 614 ft 8:49 PM CDT Normal  
Midway Airport SE corner runway 13C 12/0, Chicago, IL 45.0 °F 39 °F 28 °F 51% NNE  at  13.0 mph 0.00 in / hr 620 ft 8:46 PM CDT Normal
West Rogers Park, Chicago, IL 44.5 °F 41 °F 30 °F 57% North  at  6.0 mph 0.00 in / hr 595 ft 8:50 PM CDT Rapid Fire
Jefferson Park, Chicago, IL 44.4 °F 44 °F 37 °F 75% SE  at  0.0 mph 0.00 in / hr 627 ft 8:49 PM CDT Rapid Fire  
Historic East Side, Harwood Heights, IL 42.0 °F 37 °F 34 °F 72% NNE  at  9.0 mph 0.00 in / hr 635 ft 8:46 PM CDT Normal
Lincolnwood, Lincolnwood, IL 43.3 °F 40 °F 33 °F 67% ENE  at  5.0 mph 0.00 in / hr 0 ft 8:46 PM CDT Normal  
Evanston KU9Z.Net, Evanston, IL 43.7 °F 44 °F 36 °F 74% ESE  at  0.0 mph 0.00 in / hr 600 ft 8:50 PM CDT Rapid Fire
Lyons Police Department, Lyons, IL 44.9 °F 45 °F 35 °F 69% North  at  1.0 mph 0.00 in / hr 615 ft 8:50 PM CDT Rapid Fire
River Grove - KA9RXK, River Grove, IL 43.8 °F 44 °F 35 °F 70% NE  at  3.0 mph 0.00 in / hr 633 ft 8:38 PM CDT Normal
South Evanston, Evanston, IL 43.1 °F 43 °F 37 °F 78% North  at  2.0 mph 0.00 in / hr 640 ft 8:50 PM CDT Normal  
KC9HZC, Brookfield, IL 44.8 °F 42 °F 36 °F 72% NE  at  5.4 mph 0.00 in / hr 617 ft 8:50 PM CDT Rapid Fire  
Irving Park Rd & Pacific Ave, Chicago, IL 44.1 °F 40 °F 36 °F 73% NE  at  8.1 mph 0.00 in / hr 635 ft 8:50 PM CDT Rapid Fire
Lyons Illinois Weather, Lyons, IL 44.4 °F 44 °F 36 °F 72% NNE  at  1.0 mph 0.00 in / hr 620 ft 8:50 PM CDT Normal  
MARITIME , Chicago, IL 44 °F 34 °F - - North  at  30 mph 0.00 in / hr 577 ft 8:00 PM CDT MADIS
Brookfield, IL 44.6 °F 43 °F 36 °F 71% North  at  4.0 mph 0.00 in / hr 659 ft 8:36 PM CDT Normal
APRSWXNET Norridge IL , Chicago, IL 44 °F 42 °F 36 °F 74% NE  at  4 mph 0.00 in / hr 656 ft 8:19 PM CDT MADIS
APRSWXNET Oak Lawn IL, Chicago, IL 44 °F 39 °F 34 °F 68% ENE  at  9 mph 0.00 in / hr 620 ft 8:17 PM CDT MADIS
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Public Information Statement
Mobile & Email Alerts Statement as of 3:45 PM CDT on May 23, 2013

... Lake Michigan Beach forecast season begins may 24th...

The National Weather Service Chicago office will resume issuing
surfzone forecasts for the shoreline of lake and Cook counties in
Illinois and lake and Porter counties in Indiana for the Summer
swim season beginning Friday may 24th.

New for this year: beach hazard statements...

Beach hazard statements will be issued over the Summer on days
when dangerous swimming conditions are expected. The beach hazard
statement addresses various beach hazards and replaces the rip
current statements that have been issued in past years. See the
service change notice at...
www.NWS.NOAA.Gov/om/notification/scn13-33bhs_expansion.Htm for
more details on this transition.

Swim hazard risk replaces rip current risk in the surfzone
forecast...

Part of the transition to beach hazard statements will include the
surfzone forecast. The surfzone forecast will no longer refer to
rip current risk... but instead low... moderate and high swim risk.

Factors contributing to dangerous swimming conditions...

... High waves...

High waves pose several dangers to swimmers at Lake Michigan
beaches. First... high waves will cause swimmers to become
fatigued. Large waves are very powerful and can push a person off
a sandbar and into deeper water... requiring them to swim through
a rapid succession of waves to get back to more shallow water.

... Rip currents and structural currents...

Also... high waves result in strong rip currents and strong
structural currents. Rip currents are strong channels of water that
form rapidly and flow quickly away from shore through breaks or
low spots in The Sandbar. Structural currents are strong currents
which frequently flow along piers... breakwalls... and jetties
toward deeper water offshore.

... Strong offshore winds...

Dangerous swim conditions can also develop with strong offshore
winds. Although wave heights would tend to be lower with offshore
winds... strong winds can still cause dangerous structural currents
in the Chicago area. Southerly winds over 35 mph resulted in
dangerous currents near a pier at Loyola Park beach on may 24
2012... a contributing factor in the tragic drowning of a 15 year
old female.

Furthermore... particularly at the Indiana dunes beaches... strong
southerly winds pose a unique hazard to those on rafts. These
winds can create a current that pulls rafts well away from shore
into deeper water. A 31 year old male drowned on June 18 2012 at
Lake View beach in Beverly Shores when his raft capsized and blew
away from him after drifting over a quarter mile from shore due
to 30 mph southerly winds.

Criteria for issuance of beach hazard statements...

NWS Chicago will issue a beach hazard statement when there is a
high swim risk due to either of the following:

1) high waves of at least 3 to 5 feet and dangerous currents.

2) winds of 30 mph or higher.

We will no longer be issuing statements for a moderate risk... but
a moderate risk will be highlighted in the surfzone forecast.

People heading to Lake Michigan beaches this Summer should...

1. Check www.Weather.Gov/Chicago or NOAA Weather Radio to see if
any beach hazard statements are in effect... and if they are...
plan to stay out of the water on that day.

2. Swim on lifeguarded beaches when possible.

3. Refer to warning flags at local beaches for the latest
information before going into Lake Michigan waters (flag
definitions... green: OK to swim... yellow: caution is urged...
red: hazardous to swim).

Swimming at Lake Michigan beaches is a wonderful part of living
or visiting this area... but on days when waves are high and/or
currents are strong... it is a very dangerous activity and one
that should be postponed until the hazardous conditions subside.
Please stay informed and safe this Summer... and enjoy the
beaches!


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