Alert archive / Indiana / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 28, NWS Chicago, IL

March 7, 2017Benton County, Jasper County, Newton County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Mar 7, 2017, 3:13 AM EST for Benton County, Jasper County, Newton County, Indiana. It was in force for 32 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: Mar 7, 2017, 3:13 AM EST (08:13 UTC)
Expired: Mar 7, 2017, 3:45 AM EST
In force: 32 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Benton County, IN, Jasper County, IN, Newton County, IN

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.2 hours before the alert went out and 137 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 4 J/kg
Mixed-layer CIN: -285 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 475 m²/s²
0-3 km storm-relative helicity: 484 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 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 Mar 7, 2:57 AM EST, 16 minutes earlier.

Area forecast discussion, Mar 7, 2:57 AM EST, 16 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, Mar 6, 5:25 PM EST, 9 hours 48 minutes before

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
425 PM CST Mon Mar 6 2017

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
072230-
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-
425 PM CST Mon Mar 6 2017 /525 PM EST Mon Mar 6 2017/

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

.DAY ONE...Tonight.

WEATHER HAZARDS EXPECTED:
  Significant Thunderstorm Risk...with an associated:
      Elevated Thunderstorm Wind Damage Risk...up to 60 MPH.
  Limited Non Thunderstorm Wind Risk.

DISCUSSION:

Gusty south winds up to around 40 mph are likely this evening. A
line of thunderstorms is expected to move into north central
Illinois late this evening, and then continue across remaining
areas in northeast Illinois and northwest Indiana overnight. Some
of these storms could be severe with damaging winds mainly west of
the Chicago area tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
  Limited Non Thunderstorm Wind Risk.
  Significant Fire Weather Risk.
Wednesday...
  Elevated Non Thunderstorm Wind Risk.
  Significant Fire Weather Risk.
Saturday...
  Limited Snow Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed late this evening over western portions of
the outlook area...in north central Illinois.

GENERAL STORM MOTION OF THE DAY:

Moving northeast at 65 mph.

&&

LMZ740>745-072230-
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-
425 PM CST Mon Mar 6 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE illinois NEARSHORE
WATERS OF LAKE MICHIGAN AND THE indiana NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...Tonight.

Gale Force Winds and Very Hazardous Waves are likely.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday and Wednesday...
  Gale Force Winds and Very Hazardous Waves are likely.
Friday...
  Hazardous Conditions for Small Craft are likely.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-072230-
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-
425 PM CST Mon Mar 6 2017

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

.DAY ONE...Tonight.

Gale force winds and hazardous waves are likely.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Gale force winds and hazardous waves are likely Tuesday through
Wednesday.

&&

Rodriguez

Visit us at http://weather.gov/chicago

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, Mar 7, 2:29 AM EST, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
129 AM CST TUE MAR 07 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1255 AM     TSTM WND GST     AURORA                  41.77N 88.29W
03/07/2017  M59 MPH          KANE               IL   MESONET

0110 AM     TSTM WND GST     SHOREWOOD               41.52N 88.20W
03/07/2017  M70 MPH          WILL               IL   MESONET

0113 AM     TSTM WND GST     BOLINGBROOK             41.70N 88.08W
03/07/2017  M63 MPH          WILL               IL   MESONET

0109 AM     TSTM WND GST     ROMEOVILLE              41.65N 88.09W
03/07/2017  M50 MPH          WILL               IL   OFFICIAL NWS OBS

&&

Local storm report, Mar 7, 2:33 AM EST, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
133 AM CST TUE MAR 07 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1254 AM     TSTM WND DMG     AURORA                  41.77N 88.29W
03/07/2017                   KANE               IL   PUBLIC

            A TREE DOWNED ONTO A CAR. TIME ESTIMATED PER RADAR AND
            SURROUNDING OBSERVATIONS.

1236 AM     TSTM WND DMG     1 S OTTAWA              41.34N 88.84W
03/07/2017                   LA SALLE           IL   PUBLIC

            POLES AND LINES DOWN/BENT. RELAYED THROUGH LAW
            ENFORCEMENT.

1236 AM     TSTM WND DMG     3 NE OTTAWA             41.38N 88.80W
03/07/2017                   LA SALLE           IL   PUBLIC

            LARGE TREE DOWNED ONTO ILLINOIS HIGHWAY 71. RELAYED
            THROUGH LAW ENFORCEMENT.

1220 AM     TSTM WND GST     ROCHELLE                41.92N 89.06W
03/07/2017  M51 MPH          OGLE               IL   AWOS

&&

MTF

Local storm report, Mar 7, 2:40 AM EST, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
140 AM CST TUE MAR 07 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1245 AM     TSTM WND DMG     SANDWICH                41.65N 88.62W
03/07/2017                   DE KALB            IL   PUBLIC

            POWER POLES DOWNED BY THE HIGH SCHOOL. HOME WEATHER
            STATION OBSERVED A GUST OF 73 MPH.

&&

MTF

Special weather statement, Mar 7, 2:49 AM EST, 24 minutes before

Special Weather Statement
National Weather Service Chicago/Romeoville Il
149 AM CST TUE MAR 7 2017

INZ001-002-010-011-019-070830-
Porter IN-Newton IN-Jasper IN-Lake IN-Benton IN-
149 AM CST TUE MAR 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR BENTON...NEWTON...PORTER...LAKE
AND JASPER COUNTIES UNTIL 230 AM CST...

At 148 AM CST, Doppler radar was tracking strong
thunderstorms along a line extending from near Whiting to near Lowell
to Claytonville. Movement was east at 60 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Strong thunderstorms will be near...
  Gary, East Chicago, Cedar Lake, Lowell and Lake Dalecarlia around
  155 AM CST.
  Hebron, Lakes Of The Four Seasons and Winfield around 200 AM CST.
  Freeland Park, Boone Grove, Dunnington and Talbot around 205 AM
  CST.
  Valparaiso, Malden, Lincoln Hills, Raub, Kouts and Boswell around
  210 AM CST.
  Fowler, Town Of Pines, Beverly Shores and Kvpz around 215 AM CST.
  Lochiel, Barce, Wadena and Atkinson around 220 AM CST.
  Remington around 225 AM CST.

Including the following interstates...
 Indiana I-80 between mile markers 1 and 16.
 Indiana I-90 between mile markers 3 and 37.
 Indiana I-94 between mile markers 16 and 32.
 Indiana I-65 between mile markers 200 and 261.

A severe thunderstorm watch remains in effect until 500 AM CST for
east central Illinois.

LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709
      4048 8753 4171 8752 4167 8747 4168 8743
      4164 8742 4162 8728 4163 8716 4171 8693
      4091 8693
TIME...MOT...LOC 0748Z 257DEG 52KT 4171 8747 4132 8747 4056 8783

IZZI

Local storm report, Mar 7, 2:56 AM EST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
156 AM CST TUE MAR 07 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0106 AM     TSTM WND DMG     CAMPUS                  41.02N 88.31W
03/07/2017                   LIVINGSTON         IL   PUBLIC

            LARGE PINE TREE DOWNED.

&&

MTF

Local storm report, Mar 7, 3:03 AM EST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
203 AM CST TUE MAR 07 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1220 AM     TSTM WND GST     ROCHELLE                41.92N 89.06W
03/07/2017  M51.00 MPH       OGLE               IL   AWOS

1225 AM     TSTM WND GST     PERU                    41.34N 89.13W
03/07/2017  M53.00 MPH       LA SALLE           IL   AWOS

            GUST TO 53 MPH AT PERU AWOS.

1236 AM     TSTM WND DMG     3 NE OTTAWA             41.38N 88.80W
03/07/2017                   LA SALLE           IL   PUBLIC

            LARGE TREE DOWNED ONTO ILLINOIS HIGHWAY 71. RELAYED
            THROUGH LAW ENFORCEMENT.

1236 AM     TSTM WND DMG     1 S OTTAWA              41.34N 88.84W
03/07/2017                   LA SALLE           IL   PUBLIC

            POLES AND LINES DOWN/BENT. RELAYED THROUGH LAW
            ENFORCEMENT.

1240 AM     TSTM WND GST     SOMONAUK                41.63N 88.68W
03/07/2017  M62.00 MPH       DE KALB            IL   TRAINED SPOTTER

1241 AM     HAIL             SYCAMORE                41.98N 88.70W
03/07/2017  M1.00 INCH       DE KALB            IL   TRAINED SPOTTER

            QUARTER SIZE HAIL AT RT 23 AND RT 64.

1241 AM     TSTM WND DMG     SYCAMORE                41.98N 88.70W
03/07/2017                   DE KALB            IL   TRAINED SPOTTER

            THREE TO FOUR INCH DIAMETER TREE LIMBS BLOWN DOWN AT RT
            23 AND RT 64.

1241 AM     HAIL             DE KALB                 41.93N 88.75W
03/07/2017  M0.88 INCH       DE KALB            IL   TRAINED SPOTTER

            NICKEL SIZE AT NIU.

1245 AM     TSTM WND DMG     SANDWICH                41.65N 88.62W
03/07/2017                   DE KALB            IL   PUBLIC

            POWER POLES DOWNED BY THE HIGH SCHOOL. HOME WEATHER
            STATION OBSERVED A GUST OF 73 MPH.

1254 AM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W
03/07/2017  M56.00 MPH       KANE               IL   ASOS

            GUST TO 56 MPH AT ARR ASOS.

1254 AM     TSTM WND DMG     AURORA                  41.77N 88.29W
03/07/2017                   KANE               IL   PUBLIC

            A TREE DOWNED ONTO A CAR. TIME ESTIMATED PER RADAR AND
            SURROUNDING OBSERVATIONS.

1255 AM     TSTM WND GST     AURORA                  41.77N 88.29W
03/07/2017  M59.00 MPH       KANE               IL   MESONET

1255 AM     TSTM WND GST     PONTIAC                 40.88N 88.64W
03/07/2017  M59.00 MPH       LIVINGSTON         IL   AWOS

            GUST TO 59 MPH AT PNT AWOS.

0105 AM     TSTM WND GST     LIBERTYVILLE            42.28N 87.97W
03/07/2017  M55.00 MPH       LAKE               IL   EMERGENCY MNGR

            GUST TO 55 MPH AT LAKE COUNTY EOC AT RT 21 AND WINCHESTER
            RD.

0106 AM     TSTM WND DMG     CAMPUS                  41.02N 88.31W
03/07/2017                   LIVINGSTON         IL   PUBLIC

            LARGE PINE TREE DOWNED.

0109 AM     TSTM WND GST     ROMEOVILLE              41.65N 88.09W
03/07/2017  M50.00 MPH       WILL               IL   OFFICIAL NWS OBS

0110 AM     TSTM WND GST     SHOREWOOD               41.52N 88.20W
03/07/2017  M70.00 MPH       WILL               IL   MESONET

0113 AM     TSTM WND GST     BOLINGBROOK             41.70N 88.08W
03/07/2017  M63.00 MPH       WILL               IL   MESONET

&&

MTF

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 11:59 PM EST	Severe Thunderstorm Warning	LOT	Lee, Ogle, Winnebago	61 min
Mar 7, 12:54 AM EST	Special Weather Statement	LOT	Boone, McHenry, Winnebago	51 min
Mar 7, 1:06 AM EST	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee, Livingston	54 min
Mar 7, 1:25 AM EST	Special Marine Warning	LOT		2 hr
Mar 7, 1:43 AM EST	Severe Thunderstorm Warning	LOT	Cook, DuPage, Grundy, Kane, Kankakee, Kendall and 2 more	62 min
Mar 7, 1:45 AM EST	Special Marine Warning	LOT		90 min
Mar 7, 2:08 AM EST	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston	52 min
Mar 7, 4:26 AM EST	Gale Warning	LOT		13 hr
Mar 7, 4:26 AM EST	Gale Warning	LOT		42 hr
Mar 7, 4:49 PM EST	Small Craft Advisory	LOT		16 hr
Mar 7, 2:49 AM EST	Special Weather Statement	LOT	Benton, Jasper, Lake, Newton, Porter	41 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2017 Every severe thunderstorm warning in 2017

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.