Excessive Heat Warning in effect from June 29, 11:00 AM CDT until June 30, 07:00 PM CDT
Temperatures were in the 80s by 9:00 a.m. Friday, June 29, 2018 heading for a high of 95°F with a Heat Index of 110°F possible at about 4PM to 5PM. Dew Points are expected to be oppressive with 70s until just after midnight Sunday/Monday. Fortunately there is a forecast of a south wind gusting to 22 MPH Friday afternoon and Saturday afternoon. Saturday will be repeat of Friday, with a high of 97°F possible.
Weather Radar (also nexrad.chgowx.com) in northeast Illinois is clear.
Excessive Heat Warning in effect for northern Illinois & northwest Indiana today & Sat. Much of Illinois as well as the Mississippi River Valley & Lower Great Lakes regions will see excessive heat. Stay cool & hydrated, & remind others! https://t.co/xO5bgWD9yc #ILwx #INwx pic.twitter.com/tGufdaCcaj
— NWS Chicago (@NWSChicago) June 29, 2018
Little reprieve in the heat will be seen tonight and Sat Night. This is especially true for the #Chicago urban heat island. For city of Chicago residents, call 311 or visit this link for heat and cooling center information: https://t.co/JhVl19EhUp #ILwx pic.twitter.com/qPjwtWh6Zh
— NWS Chicago (@NWSChicago) June 29, 2018
Hot & humid again Sunday with increasing clouds & precip chances ahead of approaching front. Some storms could be strong/severe Sunday. pic.twitter.com/oT3TgAgIYT
— NWS Chicago (@NWSChicago) June 29, 2018
Heat combined with very humid air & sun will provide dangerous conditions through Saturday. For comparison, the degree of humidity with this heat appears greater than the one just 2 weeks ago. Demonstrate & share heat safety today & Saturday! #ILwx #INwx https://t.co/xO5bgWly9C pic.twitter.com/k724BKiU8M
— NWS Chicago (@NWSChicago) June 29, 2018
O’HARE FORECAST …
Today: Sunny and hot, with a high near 95. Heat index values as high as 110. South wind around 15 mph, with gusts as high as 20 mph.
Tonight: Mostly clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday: Sunny and hot, with a high near 97. Heat index values as high as 109. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. South wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Monday: Mostly sunny, with a high near 87.
Monday Night: Mostly clear, with a low around 69.
Tuesday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Tuesday Night: Partly cloudy, with a low around 73.
Independence Day: A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Wednesday Night: Partly cloudy, with a low around 72.
Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
904 AM CDT Fri Jun 29 2018
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE……….68.
CHICAGO CRIB……….64.
WILMETTE BUOY……….66.
MICHIGAN CITY……….57.
MICHIGAN CITY BUOY……….68.
SOUTH MID LAKE BUOY……….66.
NORTH MID LAKE BUOY……….59.
june.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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The dew point temperature is a better indicator than relative humidity of how oppressive the air feels. Check out the chart & summary below on why. Dew points Fri-Sat will likely be in the 75°+ range for most if not all of the area. More here: https://t.co/7DuG2FKDPU #ilwx #inwx pic.twitter.com/4OIDPlfFfC
— NWS Chicago (@NWSChicago) June 28, 2018
Dangerous heat and humidity will spread from the Plains into Midwest and Northeast into this weekend: https://t.co/et5bZkP27a pic.twitter.com/nxRQQ2rtJ2
— The Weather Channel (@weatherchannel) June 29, 2018
SPC Jun 29, 2018 1630 UTC Day 1 Convective Outlook: SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1114 AM CDT Fri Jun 29 2018 Valid 291630Z – 301200Z …THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF… https://t.co/0Sdzoo8DxN pic.twitter.com/AN2Wul3GYy
— Cardinal Weather (@CardinalWeather) June 29, 2018
URGENT – WEATHER MESSAGE
National Weather Service Chicago IL
1034 AM CDT Fri Jun 29 2018
ILZ014-292230-
/O.CON.KLOT.EH.W.0002.180629T1600Z-180701T0000Z/
Cook-
Including the city of Chicago
1034 AM CDT Fri Jun 29 2018
…EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT
SATURDAY…
* TEMPERATURE…Afternoon highs in the mid to upper 90s and
nighttime lows around 80 degrees.
* HEAT INDICES…Peak heat indices in the 105 to 110 degree
range.
* IMPACTS…Oppressive heat and humidity combined with ample
sunshine will lead to hazardous conditions, particularly for
the elderly and those with pre-existing health conditions.
Stifling heat is likely to linger well into the evening hours
with very little nighttime relief from the heat. This will
exacerbate the potential health impacts during this intense
heat wave. Residents of the City of Chicago can call 3…1…
1… to request well being checks for elderly friends or
family members, or for information on finding the nearest
cooling center.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Take extra precautions…if you work or spend time outside. When
possible…reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.
To reduce risk during outdoor work…the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency…call 9 1 1.
An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids…stay in an air-conditioned room…stay out of the sun…
and check up on relatives and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.