Alert archive / Indiana / Lake Effect Snow Warnings in 2014

Lake Effect Snow Warning 2, NWS Chicago, IL

January 20, 2014Lake County, Indiana

NWS Chicago, IL issued this lake effect snow warning at Jan 20, 2014, 12:47 PM CST for Lake County, Indiana. It took effect at Jan 20, 2014, 11:00 PM CST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 20, 2014, 12:47 PM CST (18:47 UTC)
In effect from
Jan 20, 2014, 11:00 PM CST
Expired
Jan 21, 2014, 5:00 PM CST
In force
18 hr
Issued by
NWS Chicago, IL

County Lake County, IN

The radar

The Chicago radar (KLOT), 61 km from the middle of the area, began a volume at 18:48 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

Davenport, (KDVN), launched 12:00Z, 6.8 hours before the alert went out and 260 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2014-01-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2014-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -177 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
-177 m²/s²
0-3 km storm-relative helicity
-126 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake effect snow 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 lake effect snow warning went out at Jan 20, 11:51 AM CST, 56 minutes earlier.

Area forecast discussion, Jan 20, 11:51 AM CST, 56 minutes before
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Hazardous weather outlook, Jan 20, 5:31 AM CST, 7 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
531 AM CST MON JAN 20 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
211145-
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-
531 AM CST MON JAN 20 2014 /631 AM EST MON JAN 20 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

SOME LIGHT ACCUMULATING SNOW IS POSSIBLE ACROSS THE AREA...MAINLY
LATE THIS AFTERNOON AND TONIGHT.

AN INTENSE BAND OF LAKE EFFECT SNOW IS EXPECTED TO DEVELOP TONIGHT
ALONG THE SOUTHERN END OF LAKE MICHIGAN. THIS BAND OF SNOW COULD
IMPACT PORTIONS OF COOK COUNTY IN ILLINOIS...AND LAKE AND PORTER
COUNTIES IN INDIANA TONIGHT. EASTERN WILL...NORTHERN NEWTON AND
NORTHERN JASPER COUNTIES MAY ALSO RECEIVE ACCUMULATING SNOW FROM
THIS BAND OF LAKE EFFECT SNOW.

VERY COLD CONDITIONS ARE EXPECTED TO OVERSPREAD MUCH OF THE AREA
TONIGHT. WIND CHILLS DOWN AROUND 20 BELOW ARE EXPECTED ACROSS
NORTH CENTRAL AND PORTIONS OF NORTHEASTERN ILLINOIS LATE TONIGHT.

LOCALIZED RIVER FLOODING WILL REMAIN POSSIBLE...ESPECIALLY NEAR
ANY ISOLATED ICE JAMS...PARTICULARLY ALONG THE KANKAKEE RIVER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THE INTENSE LAKE EFFECT BAND OF SNOW WILL PERSIST INTO
TUESDAY...MAINLY ACROSS LAKE AND PORTER COUNTIES IN INDIANA.

WIND CHILLS DOWN AROUND 20 BELOW ARE EXPECTED ACROSS
NORTH CENTRAL AND PORTIONS OF NORTHEASTERN ILLINOIS TUESDAY MORNING.

OVERNIGHT AND EARLY MORNING WIND CHILLS COULD AGAIN DROP BELOW -20
TUESDAY NIGHT THROUGH FRIDAY MORNING.

IN ADDITION...LOCALIZED RIVER FLOODING WILL REMAIN
POSSIBLE...ESPECIALLY NEAR ISOLATED ICE JAMS...PARTICULARLY ALONG
THE KANKAKEE RIVER.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

LMZ740>745-211145-
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-
531 AM CST MON JAN 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT.

WINDS AND WAVES WILL BE HAZARDOUS TO SMALL CRAFT THIS AFTERNOON
AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

STRONG WINDS AND HIGH WAVES WILL CONTINUE TO LEAD TO HAZARDOUS
CONDITIONS FOR SMALL CRAFT THROUGH TUESDAY EVENING.

WINDS AND WAVES MAY BE HAZARDOUS TO SMALL CRAFT PERIODICALLY FROM
WEDNESDAY NIGHT THROUGH SATURDAY.

GALE FORCE GUSTS ARE POSSIBLE FRIDAY AFTERNOON AND EVENING
PRIMARILY OVER THE INDIANA NEARSHORE WATERS.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-211145-
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-
531 AM CST MON JAN 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

GALE FORCE WINDS AND HEAVY FREEZING SPRAY ARE POSSIBLE THURSDAY
NIGHT THROUGH FRIDAY EVENING.

&&

KJB

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 20, 3:22 AM CSTSmall Craft AdvisoryLOT42 hr
Jan 20, 3:58 AM CSTWind Chill AdvisoryLOTBoone, DeKalb, Kane, Lake, LaSalle, Lee and 3 more30 hr
Jan 20, 12:47 PM CSTLake Effect Snow AdvisoryLOTLake32 hr

Nearby

Lake Effect Snow Warnings in Indiana, 2014Lake Effect Snow Warnings in Illinois, 2014Every lake effect snow warning in 2014

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.