"The rain over Chicago and nearby suburbs has FINALLY begun to taper off, and will continue to do so heading into this evening. Chicago breaking news, weather and live video. "Severe Thunderstorm Warning continues for Streator IL, Pontiac IL and Flanagan IL until 400 PM CDT. Verified account Protected Tweets ; Suggested users. However, lingering flood impacts will likely persist in the green shaded area for at least a few more hours, so be wary of flooded paths and roads. Initial NWS storm survey & tornadic debris signature on radar confirm a tornado in south Naperville w an approx. The more significant flooding is expected along the Indiana shore. ILwx INwx. The actor, who portrayed Gabriel Maddox on Seasons 4-6 of the ABC legal. South of I-88, snow amounts will be 3-7". Mostly cloudy, with a low around 36. Find Chicago neighborhood news, Illinois news and more. NWS Chicago NWSChicago Our damage survey crews have wrapped up their field surveys for yesterday&39;s storms, and at this time, we can confirm the following An EF-0 tornado impacted Warrenville, Wheaton, and Glen Ellyn Strong straight-line winds of up to 80 mph occurred in Elk Grove Village ilwx. NWS Chicago NWSChicago. We would like to show you a description here but the site won&x27;t allow us. 3 points, Chicago is 7-0-1 against the spread and 6-2 overall. NWS Chicago NWSChicago. ilwx inwx". "Our team of meteorologists are currently pouring over the latest data coming in this morning. Storms will continue to sag south, with damaging winds, flash flooding, and a few tornadoes possible. Sign up. "We are monitoring a cluster of storms moving across southern Wisconsin that are expected to move across the area overnight. Twitter Facebook First published on December 5, 2023 449 AM CST. Learn about the Chicago Climate Exchange, or CCX, and find out how the market operates. The latest Tweets from Chicago News (ChicagoNews) "Chicago News Joel Quenneville World Series Game 7 'the biggest game maybe in the history of Chicago sports. Damaging hail would be the main threat. We would like to show you a description here but the site wont allow us. This was flanked on its western side by a swath of severe straight-line winds. Brief downpours, occasional lightning strikes, and locally gusty winds will be the main threats. Isolated storms may occur outside the yellow shaded area, however, so don&x27;t let your guard down. Verified account Protected Tweets ; Suggested users. Flash Flood Warning including Chicago IL, Cicero IL and Orland Park IL until 1000 PM CDT. Remember to turn around if you encounter water on roadways. scored 30 points and Chicago State stunned No. Visit hurricanes. We would like to show you a description here but the site won&x27;t allow us. The early detection work you guys did last night saved a lot of lives. Below is a map highlighting areas where we suspect tornadoes may have touched down last evening. This storm will contain wind gusts to 70 MPH. National Weather Service is your source for the most complete weather forecast and weather related information on the web. NWS Chicago on Twitter "Tornado Warning including Chicago IL, Cicero IL and Evanston IL until 745 PM CDT httpst. With increasing northwest winds this afternoon, wind chills will fall through the positive digits and into the negative digits from west to east. This storm will contain wind gusts to 70 MPH". Each donation of any size received before the end of 2023 will make a big impact. 12282021 now stands as the latest date for the first measurable snow in Chicago on record. Watch the full interview. There are additional circulations along the line south of O&39;Hare. See new Tweets. The blocking pattern shows no signs of breaking down through at least the next 10 days. Severe Thunderstorm Warning including Joliet IL, Naperville IL, Cicero IL until 1215 AM CDT. VITALS The Heat and Bulls meet for the second of four matchups this season. ILwx INwx". 450 AM May 1, 2022 Twitter Web App. ilwx inwx. The latest tweets from NWSChicago. Damaging hail would be the main threat. We would like to show you a description here but the site wont allow us. We would like to show you a description here but the site won&x27;t allow us. not good for my friends and family in the Chicago area. Snow (initially rain at some locations) will continue to spread east this afternoon and linger into Friday AM. We are pleased to announce our Spring 2023 Storm Spotter Training Schedule Each 2-hour session is freeopen to the public and will cover the basics of thunderstorms, storm spotting, and reporting severe weather. Thunderstorms will be capable of producing frequent lightning and locally heavy rainfall. We would like to show you a description here but the site won&x27;t allow us. ILwx INwx". National Weather Service Chicago, IL 333 West University Drive Romeoville, IL 60446 815-834-1435 8am-8pm Comments Questions Please Contact Us. Covering local politics, health, traffic and sports for Chicago, the suburbs and northwest Indiana. Please acknowledge the NWS as the source of any news information accessed from this site. TIME ESTIMATED. However, finding the right Chicago Electric replacement parts can sometimes be a daunting. Additional details will become available throughout Tuesday as more investigation is completed with this event. 238 Following. 76W Elev 617ft. Help us reach our year-end fundraising goal Block Club Chicago, your favorite nonprofit neighborhood newsroom, is participating in NewsMatch, an annual campaign to bolster independent publishers across the nation. Chicago news, weather, traffic, and sports from FOX 32, serving the Chicago area and Northwest Indiana. West wind between 5 and 11 mph, with gusts as high as 18 mph. Portland was also at 14, while Chicago was slightly below 14. 98N 87. Follow us on Twitter Follow us on Facebook Follow us on YouTube LOT RSS Feed Hazards Enhanced Hazardous Weather Outlook Hazardous Weather Outlook. A line of storms ahead of a cold front is moving into NE IL. Uncertainty remains, so stay tuned ILwx INwx". A few storms are possible in the yellow shaded area with a slightly lower coverage in the green area. "Widely scattered thunderstorms expected this afternoon, slowly spreading into the evening. Depending on how storms evolve, the watch may be expanded or a new watch may be issued later today for northwest Indiana andor CookLake counties in Illinois, so stay tuned for updates". On Monday, the Cubs extended Bellinger a one-year qualifying offer worth 20. Near the lake, temps could fall from near 80 into 50s in minutes, with a more subdued temp fall expected the farther inland the front gets. Capitol riot will serve two months in prison, a federal judge ruled Friday. "1200 PM CDT Scattered storms are likely this afternoon especially between 2 and 5 PM. 5 miles before lifting. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. An Air Quality alert is in effect today for northeastern Illinois and northwestern Indiana. Illustrating the Chicago Values of Crime, Murder & Mayhem with comprehensive charts, precise graphs and exhaustive data sets of Chicago stupidity. <style> body -ms-overflow-style scrollbar; overflow-y scroll; overscroll-behavior-y none; . 455 AM 44 A few severe storms are possible this AMearly PM nearnorth of I-88. Light Rain 42F 6C More Information. The weather will turn hot, humid, and stormy at times Wed-Fri. Last Map Update Mon, Dec. "Say it &x27;aint snow. ILwx INwx". ilwx inwx. A special weather statement has been issued for Paxton IL, Dwight IL and Fairbury IL until 130 AM CDT. A second line just east of Quad Cities, IA may have an isolated strong storm with gusty winds. CBS Chicago The latest news, weather & sports for all of Chicagoland. Three have been preliminarily rated EF-1, with the remaining ten preliminarily rated EF-0. NWS Chicago NWSChicago. West wind around 15 mph, with gusts as high as 30 mph. By that point, the Bulls were shooting 13 for 17, including 7 for 9 on threes, and the Heat was. Snowfall departures varied considerably across the area, highlighted by a notable lack of snow across far northern IL. 4th of July PM Update Spotty t-storm development remains possible through 6 PM CDT especially in the yellow shaded area, though storms have struggled to get going so far. SHORT TERM. PM and on Sun. CHICAGO As Twitter strips away its system for verifying accounts, opportunists are jumping-in and impersonating elected officials and city agencies. You can also send a letter to the White House at 1600 Pennsylvania Ave NW, Washington, DC 20500, or by sending a letter to the Trump Orga. ilwx inwx. Torrential downpours may also cause pockets of street flooding. Several fans have used social media to say the Bears should Draft a center high and have him become the starter from Day 1. NWS Chicago NWSChicago 60 mph winds from outflow well out ahead of t-storms caused a localized dust storm wnear-zero visibility in parts of central IL on Sunday eve. Severe Thunderstorm Warning including Chicago IL, Cicero IL and Arlington Heights IL until 1000 PM CDT. One complaint accuses Macy&x27;s Inc. Tornado Warning continues for Chicago IL, Cicero IL and Berwyn IL until 700 PM CDT. "Severe Thunderstorm Warning continues for Chicago IL, Cicero IL and Arlington Heights IL until 1000 PM CDT. In this conversation. Chicago, IL News Headlines Attend a NWS Duluth Virtual Winter Spotter Training 4 Classes Available Additional Headlines En Espaol Current conditions at Chicago, Chicago Midway Airport (KMDW) Lat 41. 6 Hour Snowfall Amounts from Chicago OHare, Rockford, and NWS Chicago in Romeoville. We would like to show you a description here but the site won&x27;t allow us. This EF-1 tornado across portions of Ogle, Winnebago, and Boone counties and resulted in 1 fatality and 40 injuries in Belvidere due to the roof collapse at the Apollo Theatre. We would like to show you a description here but the site wont allow us. The heat should break toward the end of the week. According to the NBC 5 Storm Team, although scattered showers are expected throughout the morning, much of the heavy rainfall and severe storm potential is expected between 12 p. Afternoon conditions at Midway were overcast at 67 degrees, and at O&x27;Hare mostly cloudy at 65 degrees. With a bustling city filled with diverse neighborhoods and a thriving rental market, its important to know what to look for and where to start your. The Upper Great Lakes are experiencing a much snowier-than-normal winter, while areas south of the Great Lakes are well below normal on snowfall. Here is a preliminary summary of the Davis Junction-Belvidere tornado on Friday March 31, 2023. Stay weather aware today ilwx inwx". NWS Chicago NWSChicago. A tornado watch has been issued for parts of Illinois, Indiana and Wisconsin until 10 PM CDT. Rainfall Totals from Sunday, June 20. ilwx INwx. "The front edge of a shelf cloud (indicative of strong winds) seen here courtesy of NIUwxcams is about to move over DeKalb, IL. WATCH LIVE Chicago Weather Live Storms blanket Chicago area - join the interactive livestream. Thanks to all who submitted reports ILwx INwx". 11, 2023 at 21050 am CST Watches, Warnings & Advisories Zoom Out Hazardous Weather Outlook Weather Story Weather Map Local Radar LOT RSS Feed. IL Svr Prep Week Some people are especially vulnerable to the dangers of tornadoes. Stay tuned for forecast updates ILwx INwx". Southeast wind 5 to 10 mph becoming north in the afternoon. CHICAGO As Twitter strips away its system for verifying accounts, opportunists are jumping-in and impersonating elected officials and city agencies. There is an increasing risk. "Flash Flood Warning including Chicago IL, Cicero IL and Orland Park IL until 1000 PM CDT". Scattered sprinkles and flurries before 7pm, then scattered flurries between 7pm and 3am. CBS2 News Chicago&x27;s weather forecast model First Alert helps digital users and traditional television viewers stay on top of Chicago&x27;s dynamic weather. "We remain in a wet pattern with another round of rain Monday night through Tuesday. We would like to show you a description here but the site wont allow us. The first round of severe thunderstorms is quickly approaching Expect storms to arrive in the next hour or so for areas southwest of the Chicago metro which will then quickly race to the northeast across the area through 6 PM. NWS Chicago NWSChicago. Thunderstorms continue to track east-northeast late this afternoon. People have bee. 455 AM 44 A few severe storms are possible this AMearly PM nearnorth of I-88. Sunny skies tomorrow will be followed by more rain and storms expected on Tuesday and Wednesday. NWS Chicago NWSChicago Our damage survey crews have wrapped up their field surveys for yesterday's storms, and at this time, we can confirm the following An EF-0 tornado impacted Warrenville, Wheaton, and Glen Ellyn Strong straight-line winds of up to 80 mph occurred in Elk Grove Village ilwx. Have multiple ways to get warnings today ILwx INwx. They say that winds peaked between 95-105 miles per hour. Main hazards include gusty winds and lightning as well as some small hail. NWS Chicago on Twitter " 120 PM 1220 This is an updated timeline graphic showing our latest thoughts on the upcoming winter storm. Ozone levels are expected to be at unhealthy levels for sensitive groups. Strongly consider avoiding non-essential travel until the rain eases up & the water recedes. ILwx INwx". WBBM Newsradio broadcasts on 780 AM & 105. ILwx INwx. Seek shelter if in the warned area". "Tornado Warning including Schaumburg IL, Hoffman Estates IL and Elmhurst IL until 715 PM CDT". Afternoon conditions at Midway were overcast at 67 degrees, and at O&x27;Hare mostly cloudy at 65 degrees. Some storms could be strong and produce heavy rainfall and gusty winds. for much of the Chicago area, including DeKalb, DuPage, McHenry, Kane, Lake, LaSalle, Kendall, Will. "Aviso de Tormenta Severa contina Chicago IL, Cicero IL, Arlington Heights IL hasta las 1000 PM CDT. ILwx INwx. We would like to show you a description here but the site wont allow us. While areas south of there are a rain snow mix. Additional details later. Flash Flood Warning including Chicago IL, Cicero IL and Orland Park IL until 1000 PM CDT. An air quality action day has been declared for today June 27th and Wednesday June 28th for all of northeast Illinois and northwest Indiana. 9N 88. Main hazards include gusty winds and lightning as well as some small hail. "Flash Flood Warning including Chicago IL, Cicero IL and Orland Park IL until 1000 PM CDT". (14) Afternoon update on our expectations for Friday&x27;s severe weather The primary threats with these storms will be destructive winds in excess of 75 mph and tornadoes, some of which could be strong. 4 points. Another levels that allegation against BlackRock Inc. Friday Night Clear, with a low around 32. It&x27;s been a busy week. ilwx inwx". NWS Chicago NWSChicago The high temperature at Chicago -O&x27;Hare reached 87 before the lake breeze moved in, which tied the record high for May 7th first set in 1936 and then tied in 1964. ILwx INwx". Verified account Protected Tweets ; Suggested users. We would like to show you a description here but the site won&x27;t allow us. NWS Chicago NWSChicago (22) One EF-0 tornado was determined from unincorporated Schaumburg into Roselle. 06" set in 1982. Strong to severe storms will be possible in parts of Alabama starting late this afternoon into tonight. Were watching Wednesdays set-up for potential of severe t-storms. The snow may become more showery in nature across N. Verified account Protected Tweets ; Suggested users. Rain has already amounted to 1-2 in some areas. Watch breaking news live or see the latest videos from programs like Good Day Chicago. A brief tornado can&x27;t be ruled out. Are you a huge fan of the Chicago Cubs Do you want to stay up-to-date with the latest news, scores, and highlights from your favorite baseball team Look no further than the official Chicago Cubs website. NWS Education Home; NEWS. "Isolated showers are expected this afternoon. Mostly cloudy, with a low around 36. A citywide ballot measure demonstrated the overwhelming popularity of expanding internet access. NWS Chicago NWSChicago (22) One EF-0 tornado was determined from unincorporated Schaumburg into Roselle. ILwx INwx. We have confirmed four additional tornadoes from Wednesday (bringing our total up to 11 now) -EF-0 from Carol Stream to Glendale Heights -EF-0 from Itasca to O&x27;Hare Airport -EF-0 from O&x27;Hare Airport to the southeast side of Des Plaines -EF-0 in Streamwood ilwx. Esta tormenta contiene rfagas de vientos de 70 MPH". ILwx INwx". We would like to show you a description here but the site wont allow us. Showers will expand north on Tuesday, so some good news for dry northern communities. East wind 10 to 15 mph, with gusts as high as 25 mph. Mostly cloudy, with a low around 36. NWS News; Events; PubsBrochuresBooklets ; NWS Media Contacts; SEARCH. Winds could gust as. Winds could gust as. The National Weather Service. "Aviso de Tormenta Severa contina Chicago IL, Cicero IL, Arlington Heights IL hasta las 1000 PM CDT. "Isolated thunderstorms are expected this evening northwest of I-55. If you saw anything, let us know what you saw & where. Strong to severe storms are developing in northwest Illinois and moving east south east at approximately 30 mph. Shane van Gisbergen won his first victory in his NASCAR Cup Series debut at the rain-delayed, darkness-shortened, slip-slidin Grant Park 220 on the Chicago Street Race Course. South of I-88, snow amounts will be 3-7". A cold front will drop through the area Wednesday leading to cooling temperatures through Thursday especially north of US-24. 939 PM &183; Jul 5, 2023 from Illinois, USA. Watch the full interview. "Isolated thunderstorms are expected this evening northwest of I-55. Sign up. The Chicago Tribune reports that Kenneka Jenkins&x27; mother, Tereasa Martin, will receive more than 3. errorContainer background-color FFF; color 0F1419; max-width. Martin says HBOs Game of Thrones ending wont influence future novels. Low around 42. Meteorologists expect cloudiness and isolated flurries before 5 p. In addition to heavy rain, some parts could see damaging winds, localized flooding and frequent lightning, the NWS said. Cool, windy, and rainy will be the story through Monday Snow and graupel may even try to mix in at times. A first-class letter mailed through the U. Northwest wind between 6 and 9 mph. WGN-TV, whose call letters are derived from the Chicago Tribune's first slogan, "World's Greatest Newspaper. South of I-80, scattered thunderstorms will continue through the rest of the afternoon. Localized flooding may occur so never attempt to walkdrive thru floodwater. beautifull sex, stellaris chosen one
ILwx INwx". . Chicago nws twitter
November 9, 2023 at 152 PM PST. IL this afternoon, resulting in brief bursts and quick accums. Overall lightning threat is low. Severe Thunderstorm Warning including Sandwich IL, Hinckley IL and Somonauk IL until 515 PM CDT. The NWS also said that tornadoes were reported in the city of Elgin and village of Campton Hills in Kane County, roughly 45 miles from Chicago. 510 AM 322023 Here are the updated weather graphics for Friday&x27;s strong storm system. Strongly consider avoiding non-essential travel until the rain eases up & the water recedes. Significant flash flooding in Chicago & immediate west, southwest, & south suburbs of Cook County Widespread street & underpass flooding & major highways may become flooded. Advertising on Twitter can be a great way to reach a large audience of potential customers. Storm surveys conducted. Forward Demar DeRozan was their leading. 18 tornadoes have now been confirmed in our forecast area, with additional areas expected to be surveyed in the coming days. Sunny, with a high near 53. The rest of the area looks dry but there is still a chance of a storm. Wind chills are beginning to rapidly drop behind frontal passage, as westerly winds increase. Chicago IL Similar City Names. The latest tweets from NWSChicago. Resulting poor air quality may be unhealthy for sensitive groups. Rainbows were also common after the second round of storms as the sun angle was lowering with sunset. "Good news regarding our earlier power outage commercial power remains steady and the generator repair has been completed. Very localized damaging wind gusts, small non-damaging hail, and soaking downpours can be expected from the strongest thunderstorms. We would like to show you a description here but the site won&x27;t allow us. We would like to show you a description here but the site wont allow us. The main threat area will move into the region in the next two hours, expected to continue eastward through the overnight hours. Illinois also elected its first Latina to Congress. We would like to show you a description here but the site wont allow us. East wind 10 to 15. Wind gusts of 35 to 45 miles per hour could lead to power outages. Burke&x27;s defense. A quick-moving, vigorously deep weather system was responsible for widespread soaking rain and embedded storms, some severe, in northern Illinois and northwest Indiana on Monday morning, February 27. A cold front will bring falling temps Mon afternoon. WGN brings you the very latest breaking news, weather, sports and entertainment. Scandinavian Airlines has taken delivery of its first Airbus A350-900 with plans to debut the new widebody on flights to Chicago in January. Ozone levels are expected to be at unhealthy levels for sensitive groups. My family was planning to leave Friday to go down to Springfield. 88N 87. Here are some of the highest recorded wind gusts from across the region since early this morning. New precipitation amounts between a quarter and half of an inch possible. Cloudy, with a high near 48. ILwx INwx. But meteorologists are predicting Chicago could see lots of snow, dangerous winds and conditions that could make travel unsafe with flights. Chicago News, Local News, Weather, Traffic, Entertainment, Video, and Breaking News. CHICAGO (AP) Federal safety officials investigating a Chicago commuter train crash that injured nearly 40 people when it slammed into snow-removal equipment. Storms will be capable of producing damaging winds, large hail & locally torrential downpours & flooding. View toward Chicago from the Dunes national park area 2 days ago, and panorama from yesterday. Pinned Tweet. 242 WHIP, with 475 strikeouts in 438 innings. A 40 percent chance of rain, mainly after 1pm. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Any shower or storm may produce gusty winds and brief downpours. We would like to show you a description here but the site won&x27;t allow us. Search For. East wind 10 to 15. Scattered thunderstorms are expected throughout the weekend with the best chances being Saturday afternoon and early Sunday morning. 300 PM 326 Severe weather threat continues to increase. This week, a few fed-up Chicagoans decided. The latest Tweets from Chicago News (ChicagoNews) "Chicago News Joel Quenneville World Series Game 7 'the biggest game maybe in the history of Chicago sports. Area of rain will gradually expand southeast later this morning. By Emily Birnbaum. 04 Apr 2023 180805. 827 PM CDT 57 Flash flooding becomes even more dangerous at night If you live in an area that has been receiving torrential rain over the last few hours, consider postponing any non-essential travel until the rain lets up and the water recedes. Prepare for travel impacts on Thursday, for both commutes in the far north, and especially during the early evening commute everywhere. We've received many reports of damage from these winds. Disclaimer Information Quality Help. 20, 2023, 655 a. Snowfall departures varied considerably across the area, highlighted by a notable lack of snow across far northern IL. The main threats will be from scattered damaging winds strong enough to down tree limbs, mainly alongnorth of I-80. Chicago Bears News & Rumors. The Chicago Tribune offers its entire paper in digital form to its subscribers. ILwx INwx. NWS Chicago on Twitter "Tornado Warning including Chicago IL, Cicero IL and Evanston IL until 745 PM CDT httpst. We&x27;ve received many reports of damage from these winds. 11, 2023 at 21050 am CST Watches, Warnings & Advisories Zoom Out Hazardous Weather Outlook Weather Story Weather Map Local Radar LOT RSS Feed. Storms coming thru our area thru noon. Chafin has made 536 relief appearances and posted a 3. Based on the latest data from this morning, we&x27;ll have updated forecast graphics out this afternoon. errorContainer background-color FFF; color 0F1419; max-width. Forecast Valid 6pm CST Nov 26, 2023-6pm CST Dec 3, 2023. That&x27;s obviously not happening now. Temperatures will be comfortable through Saturday. ) More details & maps for these tornadoes to come. We&39;ll see a warmup as we go into the weekend with area-wide 60 degree temperatures expected Saturday afternoon. With so many engaged users, Twitter provides businesses with the opportunity to target their desired audiences and share their message in an effecti. "Planning to head outdoors this afternoon Keep an eye to the sky as scattered showers and a few storms develop primarily in the green shaded area. 1022 AM &183; Jun 14, 2022. NWS Chicago NWSChicago. PM and on Sun. While most of the week looks dry, rain chances may try to sneak in during the second half of the week. ilwx inwx. Tornado Warning including Elgin IL, South Elgin IL and Plato Center IL until 645 PM CDT. Public safety is the. Partly sunny, with a high near 45. Localized flooding may occur so never attempt to walkdrive thru floodwater. ILwx INwx". " Here is a quick snapshot of approximate snowfall totals through 8 AM CST this morning. Isol&x27;d to widely sct&x27;d showers and t-storms psbl Sat. Gusty westerly winds linger overnight, with blowing snow remaining an issue. More info coming later. We would like to show you a description here but the site wont allow us. The track roughly started east of Rt. 000 FXUS63 KLOT 110835 AFDLOT Area Forecast Discussion National Weather Service ChicagoRomeoville, IL 235 AM CST Mon Dec 11 2023. There is an increasing risk for damaging tornadoes, hail, and heavy downpours through 7 PM CDT tonight. Stay tuned for forecast updates ILwx INwx". Chicago, Illinois wttw. The Chicago Tribune offers its entire paper in digital form to its subscribers. "A line of storms ahead of a cold front is moving into NE IL. Remember to never attempt to walk or drive through floodwaters". Forecast Valid 1pm CST Dec 13, 2023-6pm CST Dec 19, 2023. NWS Forecast Office Chicago, IL. "Snow will develop over nrn IL by late Friday aftn, then spread south into the evening hours. NWS Chicago NWSChicago. While no severe weather is expected a few storms could contain gusty winds and downpours. Shane van Gisbergen won his first victory in his NASCAR Cup Series debut at the rain-delayed, darkness-shortened, slip-slidin Grant Park 220 on the Chicago Street Race Course. 98N 87. 75 million users, and a global advertising audience of 187 million. ILwx INwx. . cleveland craiglist