Alert archive / Indiana / Special Weather Statements in 2017

Special Weather Statement, NWS Northern Indiana

October 7, 20174 counties in Indiana

NWS Northern Indiana issued this special weather statement at Oct 7, 2017, 8:40 PM EDT for 4 counties in Indiana. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 7, 2017, 8:40 PM EDT (00:40 UTC)
Expired
Oct 7, 2017, 9:30 PM EDT
In force
50 min
Issued by
NWS Northern Indiana

Counties Adams County, IN, Blackford County, IN, Jay County, IN, Wells County, IN

The radar

The Northern Indiana radar (KIWX), 103 km from the middle of the area, began a volume at 00:39 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 166 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, Cncnati-Daytn, OH at 00:00Z on 2017-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 82 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2017-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 square meters per square second.19395878Sfc1 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
82 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
1207 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
378 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this special weather statement went out at Oct 7, 7:55 PM EDT, 45 minutes earlier.

Area forecast discussion, Oct 7, 7:55 PM EDT, 45 minutes before
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Hazardous weather outlook, Oct 7, 4:56 PM EDT, 3 hours 44 minutes before
Hazardous Weather Outlook...CORRECTED
National Weather Service Northern Indiana
456 PM EDT Sat Oct 7 2017

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-082000-
La Porte-St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-
Pulaski-Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Berrien-
Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-
Henry-Paulding-Putnam-Van Wert-Allen OH-
456 PM EDT Sat Oct 7 2017 /356 PM CDT Sat Oct 7 2017/

This hazardous weather outlook is for portions of southwest
Michigan...northern Indiana and northwest Ohio.

.DAY ONE...Tonight

Winds are expected to gust up to 40 mph through late evening
before tapering off. Rain showers and isolated thunderstorms will
move from west to east across the forecast area through around 11
pm EDT. Severe weather is possible, with the main threat being
damaging wind gusts. An isolated weak tornado is not out of the
question.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter reports would be appreciated tonight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

LMZ043-046-082000-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
456 PM EDT Sat Oct 7 2017

This hazardous weather outlook is for portions of The Nearshore
Waters of Southeastern Lake Michigan.

.DAY ONE...Tonight

Hazardous conditions for small craft are expected through tonight.
Gale gusts are also expected into the early portions of the
overnight hours.

A band of rain showers and isolated thunderstorms is expected to
track across southern Lake Michigan late this afternoon into early
this evening. Wind gusts in excess of 40 knots are possible this
evening with these showers and isolated storms.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Hazardous conditions for small craft may linger into Sunday morning,
especially from New Buffalo Michigan to St. Joseph Michigan.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

In the hours before

Special weather statement, Oct 7, 7:08 PM EDT, 1 hour 32 minutes before
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Special weather statement, Oct 7, 7:23 PM EDT, 1 hour 17 minutes before
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Special weather statement, Oct 7, 7:47 PM EDT, 53 minutes before
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Special weather statement, Oct 7, 8:00 PM EDT, 40 minutes before
Special Weather Statement
National Weather Service Northern Indiana
800 PM EDT SAT OCT 7 2017

INZ023>025-032-080045-
Wabash-Miami-Huntington-Grant-
800 PM EDT SAT OCT 7 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN WABASH...
GRANT...HUNTINGTON AND SOUTHEASTERN MIAMI COUNTIES...

At 800 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Wabash to Tipton. Movement was east at 35
mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Marion, Huntington, Wabash, Gas City, Upland, Fairmount, Jonesboro,
Sweetser, Andrews, Markle, Swayzee, La Fontaine, Van Buren, Matthews,
Sims, Converse, Warren, Lancaster, Lagro and Amboy.

This includes Interstate 69 in Indiana between mile markers 252 and
291.

LAT...LON 4056 8586 4057 8602 4084 8588 4093 8534
      4084 8533 4065 8540 4065 8545 4053 8544
      4038 8550 4038 8586
TIME...MOT...LOC 0000Z 269DEG 32KT 4082 8582 4029 8607

GH
Special weather statement, Oct 7, 8:18 PM EDT, 22 minutes before
Special Weather Statement
National Weather Service Northern Indiana
818 PM EDT SAT OCT 7 2017

INZ006>009-017-018-025-MIZ079>081-OHZ001-080045-
Lagrange-Noble-Whitley-Huntington-Allen-De
Kalb-Steuben-Branch-Hillsdale-St. Joseph-Williams-
818 PM EDT SAT OCT 7 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT STEUBEN...ALLEN...
NOBLE...WHITLEY...DE KALB...NORTHERN HUNTINGTON...EASTERN LAGRANGE...
SOUTHEASTERN ST. JOSEPH...BRANCH...WESTERN HILLSDALE AND WESTERN
WILLIAMS COUNTIES...

At 817 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Colon to near Andrews. Movement was east
at 50 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Fort Wayne, Huntington, New Haven, Auburn, Sturgis, Coldwater,
Kendallville, Columbia City, Angola, Hillsdale, Garrett, Butler,
Lagrange, Tri-lakes, Huntertown, Avilla, Albion, Bronson, Jonesville
and Waterloo.

This includes the following highways...
 Interstate 469 near mile marker 0, near mile marker 3, between mile
markers 7 and 8, and between mile markers 10 and 30.
 Interstate 69 in Indiana between mile markers 295 and 357.
 Interstate 69 in Michigan between mile markers 1 and 21.
 Interstate 80 in Indiana between mile markers 121 and 156.
 Interstate 80 in Ohio between mile markers 0 and 4.

LAT...LON 4143 8477 4143 8480 4129 8480 4102 8487
      4088 8562 4202 8536 4207 8517 4207 8460
TIME...MOT...LOC 0017Z 251DEG 42KT 4197 8532 4089 8558

GH
Special weather statement, Oct 7, 8:40 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Northern Indiana
840 PM EDT SAT OCT 7 2017

INZ018-025>027-032>034-OHZ015-024-080130-
Jay-Huntington-Blackford-Adams-Allen-Wells-Grant-Van Wert-Paulding-
840 PM EDT SAT OCT 7 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN ALLEN...
EASTERN GRANT...BLACKFORD...SOUTHEASTERN HUNTINGTON...WELLS...
ADAMS...JAY...SOUTHWESTERN PAULDING AND WESTERN VAN WERT COUNTIES...

At 840 PM EDT, radar indicated strong thunderstorms were located
along a line extending from 10 miles southwest of Fort Wayne to
Matthews. Movement was east at 55 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Bluffton, Decatur, Portland, Hartford City, Berne, Upland, Ossian,
Dunkirk, Montpelier, Redkey, Geneva, Monroeville, Markle, Convoy,
Monroe, Pennville, Matthews, Westchester, Center and Middletown.

This includes the following highways...
 Interstate 469 between mile markers 4 and 6.
 Interstate 69 in Indiana between mile markers 278 and 293.

LAT...LON 4038 8522 4038 8554 4092 8537 4106 8460
      4073 8468 4073 8480 4031 8480 4031 8522
TIME...MOT...LOC 0040Z 259DEG 48KT 4101 8532 4037 8551

GH

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 7, 8:00 PM EDTSpecial Weather StatementIWXGrant, Huntington, Wabash45 min
Oct 7, 8:18 PM EDTSpecial Weather StatementIWXAllen, DeKalb, LaGrange, Noble, Steuben, Whitley27 min
Oct 7, 8:47 PM EDTSpecial Weather StatementIWXAllen, DeKalb, Steuben43 min
Oct 7, 10:45 PM EDTSmall Craft AdvisoryIWX12 hr
Oct 7, 9:25 PM EDTSpecial Weather StatementIWXAllen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more35 min

Nearby

Special Weather Statements in Indiana, 2017Every special weather statement 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; radar from the NEXRAD Level II archive.