Alert archive / Indiana / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 63, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Jun 10, 2015, 7:53 PM CDT for 4 counties in Indiana. It was in force for 67 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
- Jun 10, 2015, 7:53 PM CDT (00:53 UTC)
- Expired
- Jun 10, 2015, 9:00 PM CDT
- In force
- 67 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 81 km from the middle of the area, began a volume at 00:56 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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 167 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2102 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1758 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.2
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 Jun 10, 7:01 PM CDT, 52 minutes earlier.
Area forecast discussion, Jun 10, 7:01 PM CDT, 52 minutes before
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</html>Hazardous weather outlook, Jun 10, 3:36 PM CDT, 4 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 336 PM CDT WED JUN 10 2015 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 112045- 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- 336 PM CDT WED JUN 10 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS... NORTHEAST ILLINOIS AND NORTHWEST INDIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT. WEATHER HAZARDS EXPECTED: THUNDERSTORMS...THE STRONGEST OF WHICH MAY PRODUCE: HEAVY RAINFALL AND LOCALIZED FLOODING. QUARTER SIZE HAIL OR LARGER. WIND GUSTS IN EXCESS OF 60 MPH. AREAS AFFECTED AND TIMING: AFTER 4 PM...THE CHANCE FOR STORMS WILL BE SOUTH OF I-88...WITH THE HIGHEST LIKELIHOOD ALONG AND SOUTH OF A PERU TO CHICAGO LINE. STORMS ARE EXPECTED TO INCREASE IN COVERAGE THROUGH SUNSET... THEN GRADUALLY FADE INTO THE OVERNIGHT. THE CHANCE FOR SEVERE STORMS AND HEAVY RAINFALL IS MAINLY BETWEEN 3 PM AND MIDNIGHT. DISCUSSION: A COLD FRONT IS MOVING SOUTHEAST THROUGH NORTHEAST ILLINOIS THIS AFTERNOON...AND A LAKE BREEZE IS MOVING INLAND AS WELL. THESE FEATURES WILL ENCOUNTER A VERY A WARM AND HUMID AIR MASS...AND LOOK TO SERVE AS A FOCUS FOR SCATTERED TO NUMEROUS STORMS. SOME OF THESE STORMS COULD BECOME SEVERE. SLOW STORM MOTIONS WILL ALSO SUPPORT THE THREAT FOR LOCALIZED FLOODING...ESPECIALLY FOR AREAS THAT HAVE HAD A HIGH AMOUNT OF RAINFALL SINCE LAST WEEKEND. HEAT INDEX READINGS WILL HOLD CLOSE TO 100 DEGREES FOR SOME ILLINOIS LOCATIONS MAINLY SOUTH OF INTERSTATE 88 AND AWAY FROM THE LAKE THROUGH EARLY EVENING. PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN FLOOD STAGE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. PERIODS OF THUNDERSTORMS ARE PROBABLE THURSDAY THROUGH MONDAY. WHILE THERE IS UNCERTAINTY ON SPECIFICS...THE PATTERN INDICATES HEAVY RAINFALL WILL AT LEAST BE POSSIBLE MUCH OF THE TIME...AND GIVEN AN ACTIVE PATTERN COULD PRESENT FLOODING CONCERNS. STRONG WINDS...LARGE HAIL AND ISOLATED TORNADOES REMAIN A CONCERN ON THURSDAY. PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN FLOOD STAGE THROUGH LATE THIS WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTERS MAY BE NEEDED THIS AFTERNOON AND EVENING. && LMZ740>745-112045- WINTHROP HARBOR TO WILMETTE HARBOR- WILMETTE HARBOR TO NORTHERLY ISLAND- NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY- GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY- 336 PM CDT WED JUN 10 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT. THERE IS A GOOD CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH EARLY THIS EVENING...ESPECIALLY OVER THE CHICAGO AND NORTHERN INDIANA NEAR SHORES. SOME OF THESE STORMS COULD PRODUCE WINDS IN EXCESS OF 40 KT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. PERIODIC CHANCES FOR THUNDERSTORMS ARE POSSIBLE MUCH OF THIS TIME...WITH THE EXCEPTION OF FRIDAY NIGHT AND SATURDAY. && LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-112045- LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH FOX ISLAND 5 NM OFFSHORE- LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI- LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO MID LAKE- 336 PM CDT WED JUN 10 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT. AREAS OF DENSE FOG MAY REDEVELOP LATER TODAY OR TONIGHT. THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS THE FAR SOUTHERN TIP OF THE LAKE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. DENSE FOG COULD PERSIST AT TIMES OVER PORTIONS OF THE LAKE ON THURSDAY AND FRIDAY. WINDS MAY BECOME HAZARDOUS TO SMALL CRAFT ON FRIDAY. PERIODIC CHANCES FOR THUNDERSTORMS ARE POSSIBLE MUCH OF THIS TIME...WITH THE EXCEPTION OF FRIDAY NIGHT AND SATURDAY. && KMD VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE) FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT: WWW.FACEBOOK.COM/NWSCHICAGO WWW.TWITTER.COM/NWSCHICAGO WWW.YOUTUBE.COM/NWSCHICAGO
In the hours before
Local storm report, Jun 10, 7:33 PM CDT, 20 minutes before
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</html>Local storm report, Jun 10, 7:36 PM CDT, 17 minutes before
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</html>Local storm report, Jun 10, 7:37 PM CDT, 16 minutes before
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</html>Local storm report, Jun 10, 7:40 PM CDT, 13 minutes before
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</html>Local storm report, Jun 10, 7:52 PM CDT, 1 minute before
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</html>Local storm report, Jun 10, 7:53 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:00 PM CDT | Severe Thunderstorm Warning | LOT | Will | 45 min |
| Jun 10, 7:05 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall, Will | 40 min |
| Jun 10, 7:27 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 48 min |
| Jun 10, 7:45 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall, Will | 60 min |
| Jun 10, 8:26 PM CDT | Special Weather Statement | LOT | Kankakee | 34 min |
| Jun 10, 10:20 PM CDT | River Flood Warning | LOT | Kankakee | 20 days |
| Jun 11, 9:12 AM CDT | Special Weather Statement | LOT | Ogle, Winnebago | 63 min |
| Jun 11, 10:48 AM CDT | River Flood Advisory | LOT | Grundy, Will | 4 days |
| Jun 11, 11:13 AM CDT | River Flood Warning | LOT | Bureau, LaSalle, Putnam | 46 days |
| Jun 11, 11:21 AM CDT | River Flood Advisory | LOT | LaSalle | 68 hr |
| Jun 11, 2:06 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 20 hr |
| Jun 10, 9:04 PM CDT | Special Weather Statement | LOT | Jasper, Newton | 26 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.