Alert archive / Illinois / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 92, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Jul 18, 2007, 9:04 PM CDT for Will County, Illinois. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 18, 2007, 9:04 PM CDT (02:04 UTC)
- Expired
- Jul 18, 2007, 9:55 PM CDT
- In force
- 51 min
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
County Will County, IL
The radar
The Chicago radar (KLOT), 20 km from the middle of the area, began a volume at 02:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 7:29 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 2:45 PM CDT, 6 hours 19 minutes earlier.
Area forecast discussion, Jul 18, 2:45 PM CDT, 6 hours 19 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 18, 4:00 PM CDT, 5 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 400 PM CDT WED JUL 18 2007 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 190930- WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE- DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON- IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON- 400 PM CDT WED JUL 18 2007 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA. .DAY ONE...TONIGHT. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS MOST OF NORTHERN ILLINOIS AND A SMALL PORTION OF NORTHWEST INDIANA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ELSEWHERE. THE MODERATE RISK AREA IS ALONG AND SOUTH OF A LINE FROM ROCKFORD...TO DOWNTOWN CHICAGO...TO PORTAGE INDIANA. ISOLATED THUNDERSTORMS DURING THE LATE AFTERNOON AND EARLY EVENING WILL GIVE WAY TO MORE ORGANIZED STORMS MOVING IN FROM THE WEST TOWARD AND AFTER MIDNIGHT. THESE STORMS MAY EVOLVE INTO A LINEAR CLUSTER CAPABLE OF PRODUCING DAMAGING WINDS AS IT MOVES EAST SOUTHEASTWARD INTO NORTHERN ILLINOIS LATER THIS EVENING. FLOODING... HEAVY RAINFALL RESULTING FROM LAST NIGHTS THUNDERSTORMS HAS CAUSED FLOODING FROM LEE COUNTY ILLINOIS...SOUTHEASTWARD THROUGH THE PONTIAC AREA. OVER 5 INCHES OF RAIN WAS REPORTED THROUGH EARLY THIS MORNING IN THESE AREAS. DUE TO THE POTENTIAL FOR ADDITIONAL THUNDERSTORM DEVELOPMENT THIS AFTERNOON AND TONIGHT...THE FLASH FLOOD WATCH FOR SOUTHERN AND WESTERN PORTIONS OF THE OUTLOOK AREA HAS BEEN EXTENDED UNTIL 7AM THURSDAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THUNDERSTORMS WILL LIKELY BE ONGOING SOUTH OF THE KANKAKEE AND ILLINOIS RIVERS THURSDAY MORNING...WITH A CHANCE OF MORNING THUNDERSTORMS NORTH. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TONIGHT. MEASUREMENTS OF HEAVY RAINFALL OR REPORTS OF FLOODING WOULD BE APPRECIATED. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ740>745-766-190930- WINTHROP HARBOR TO WILMETTE HARBOR IL- WILMETTE HARBOR TO NORTHERLY ISLAND IL- NORTHERLY ISLAND TO CALUMET HARBOR IL- CALUMET HARBOR IL TO GARY IN- GARY INDIANA TO BURNS HARBOR- BURNS HARBOR TO MICHIGAN CITY- LAKE MICHIGAN OPEN WATERS FROM WINTHROP HARBOR IL EASTWARD TO THE MID POINT OF THE LAKE AND SOUTHWARD TO MICHIGAN CITY MI BEYOND 5 NM OFFSHORE- 400 PM CDT WED JUL 18 2007 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS AND INDIANA WATERS OF LAKE MICHIGAN. .DAY ONE...TONIGHT. THUNDERSTORMS ARE LIKELY TONIGHT. SOME OF THESE STORMS MAY BE SEVERE WITH WIND GUSTS IN EXCESS OF 34 KNOTS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. HAZARDOUS WINDS AND WAVES FOR SMALL CRAFT ARE EXPECTED TO DEVELOP BY THURSDAY AFTERNOON...AND CONTINUE INTO FRIDAY. NORTH WINDS SUSTAINED AROUND 25 KNOTS WILL LIKELY RESULT IN WAVES IN EXCESS OF 6 FEET AND AN INCREASED THREAT OF RIP CURRENTS ALONG THE INDIANA SHORELINE. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO KL
In the hours before
Local storm report, Jul 18, 4:52 PM CDT, 4 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
452 PM CDT WED JUL 18 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1207 AM TSTM WND DMG POLO 41.98N 89.58W
07/18/2007 OGLE IL AMATEUR RADIO
3 TO 4 INCH TREE BRANCHES DOWN
1217 AM TSTM WND DMG DIXON 41.85N 89.48W
07/18/2007 LEE IL LAW ENFORCEMENT
TREE DOWN AT 9TH AND HIGHLAND...RADAR TIME ESTIMATED
1245 AM FLASH FLOOD POLO 41.98N 89.58W
07/18/2007 OGLE IL AMATEUR RADIO
DIVISION AND WEST COVEN STREETS FLOODED - 2 INCHES OF
RAIN IN POLO SINCE BEGINNING OF STORM
0126 AM FLOOD 5 E POLO 41.98N 89.48W
07/18/2007 OGLE IL AMATEUR RADIO
PINE CREEK OVER ITS BANKS IN WHITE PINES STATE PARK.
FLOODING IN PARK IS BEGINNING.
0126 AM TSTM WND DMG 5 E POLO 41.98N 89.48W
07/18/2007 OGLE IL AMATEUR RADIO
LARGE TREE BRANCH BLOWN DOWN NEAR THE ENTRANCE OF WHITE
PINES STATE PARK
0130 AM FLOOD DIXON 41.85N 89.48W
07/18/2007 LEE IL LAW ENFORCEMENT
FLOODING OFF OF ROUTE 2 ON THE NORTHEAST SIDE OF DIXON
0130 AM FLASH FLOOD AMBOY 41.72N 89.33W
07/18/2007 LEE IL LAW ENFORCEMENT
WATER COMING UP THROUGH THE STORM DRAINS IN THE
ROADWAYS...PER LEE COUNTY SHERIFFS OFFICE
0355 AM TSTM WND DMG PAXTON 40.46N 88.10W
07/18/2007 FORD IL LAW ENFORCEMENT
LARGE TREE LIMBS BLOWN DOWN.
0700 AM HEAVY RAIN PERU 41.34N 89.13W
07/18/2007 M3.05 INCH LA SALLE IL TRAINED SPOTTER
0700 AM HEAVY RAIN 5 NNE CORNELL 41.06N 88.69W
07/18/2007 M3.40 INCH LIVINGSTON IL TRAINED SPOTTER
0700 AM HEAVY RAIN DIXON 41.85N 89.48W
07/18/2007 M4.36 INCH LEE IL CO-OP OBSERVER
0700 AM HEAVY RAIN 3 NW DIXON 41.88N 89.52W
07/18/2007 M4.08 INCH LEE IL TRAINED SPOTTER
0700 AM HEAVY RAIN POLO 41.98N 89.58W
07/18/2007 M3.85 INCH OGLE IL CO-OP OBSERVER
0700 AM HEAVY RAIN 1 N MENDOTA 41.57N 89.12W
07/18/2007 M3.18 INCH LA SALLE IL TRAINED SPOTTER
0700 AM HEAVY RAIN 1 SE PONTIAC 40.87N 88.63W
07/18/2007 M2.95 INCH LIVINGSTON IL TRAINED SPOTTER
0700 AM HEAVY RAIN 1 E OREGON 42.01N 89.32W
07/18/2007 M2.87 INCH OGLE IL TRAINED SPOTTER
0700 AM HEAVY RAIN DIXON 41.85N 89.48W
07/18/2007 M4.36 INCH LEE IL CO-OP OBSERVER
0700 AM HEAVY RAIN POLO 41.98N 89.58W
07/18/2007 M4.27 INCH OGLE IL TRAINED SPOTTER
0721 AM FLASH FLOOD 3 E PONTIAC 40.88N 88.58W
07/18/2007 LIVINGSTON IL LAW ENFORCEMENT
WATER FLOWING ACROSS IL ROUTE 116
0755 AM FLASH FLOOD 7 NW PONTIAC 40.95N 88.74W
07/18/2007 LIVINGSTON IL EMERGENCY MNGR
WATER COVERING ROADWAYS
0755 AM FLASH FLOOD 5 S PONTIAC 40.80N 88.64W
07/18/2007 LIVINGSTON IL EMERGENCY MNGR
WATER COVERING ROADWAYS
0801 AM HEAVY RAIN 3 S OREGON 41.97N 89.34W
07/18/2007 M5.19 INCH OGLE IL CO-OP OBSERVER
0830 AM HEAVY RAIN 1 ESE STREATOR 41.12N 88.81W
07/18/2007 M2.55 INCH LA SALLE IL TRAINED SPOTTER
PRECIPITATION RECORDED SINCE MIDNIGHT. DRY CREEK BED HAS
RISEN TO 16 INCHES OF FLOWING WATER. COCORAH OBSERVER.
0425 PM FLOOD SAUNEMIN 40.89N 88.41W
07/18/2007 LIVINGSTON IL LAW ENFORCEMENT
ROADS REMAIN FLOODED ON WEST SIDE OF TOWN NEAR CEMETARY.
0425 PM FLOOD PONTIAC 40.88N 88.64W
07/18/2007 LIVINGSTON IL LAW ENFORCEMENT
VEHICLE REMAINS SUBMERGED IN FLOOD WATERS ON NORTHEAST
SIDE OF TOWN.
&&The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:09 PM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 57 min |
| Jul 18, 7:17 PM CDT | Flash Flood Warning | LOT | Boone, Lake, McHenry | 6 hr |
| Jul 18, 7:17 PM CDT | Flash Flood Warning | LOT | Boone, Lake, McHenry, Winnebago | 6 hr |
| Jul 18, 7:17 PM CDT | Severe Thunderstorm Warning | LOT | McHenry | 44 min |
| Jul 18, 7:31 PM CDT | River Flood Warning | LOT | LaSalle | 25 hr |
| Jul 18, 7:32 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kane | 58 min |
| Jul 18, 7:37 PM CDT | Special Marine Warning | LOT | 113 min | |
| Jul 18, 8:28 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane | 47 min |
| Jul 18, 8:45 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 60 min |
| Jul 18, 8:45 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 60 min |
| Jul 18, 8:47 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb | 43 min |
| Jul 18, 9:03 PM CDT | Flash Flood Warning | LOT | DeKalb, Lee, Ogle | 6 hr |
| Jul 18, 9:12 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane | 22 min |
| Jul 18, 9:15 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 82 min |
| Jul 18, 9:24 PM CDT | Special Marine Warning | LOT | 66 min | |
| Jul 18, 9:31 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Will | 48 min |
| Jul 18, 9:32 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle | 58 min |
| Jul 18, 9:39 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 21 min |
| Jul 18, 9:45 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 25 min |
| Jul 18, 9:50 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Grundy, Kendall, Will | 6 hr |
| Jul 18, 9:50 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Grundy, Kane, Kendall, Will | 6 hr |
| Jul 19, 9:06 AM CDT | River Flood Advisory | LOT | DeKalb | 19 hr |
| Jul 18, 10:00 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 40 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.