Alert archive / Indiana / Special Weather Statements in 2015

Special Weather Statement, NWS Northern Indiana

August 9, 20154 counties in Indiana

NWS Northern Indiana issued this special weather statement at Aug 9, 2015, 7:09 PM EDT for 4 counties in Indiana. It was in force for 36 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
Aug 9, 2015, 7:09 PM EDT (23:09 UTC)
Expired
Aug 9, 2015, 7:45 PM EDT
In force
36 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 23:10 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 12:00Z, 11.2 hours before the alert went out and 168 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 12:00Z on 2015-08-09Temperature 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, Cncnati-Daytn, OH at 12:00Z on 2015-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.193958Sfc1 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
1089 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Aug 9, 3:03 PM EDT, 4 hours 6 minutes earlier.

Area forecast discussion, Aug 9, 3:03 PM EDT, 4 hours 6 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
303 PM EDT SUN AUG 9 2015

.SYNOPSIS...
ISSUED AT 252 PM EDT SUN AUG 9 2015

AN UPPER LEVEL DISTURBANCE AND LOW PRESSURE WILL SLOWLY TRACK
EASTWARD THROUGH THE AREA THROUGH MONDAY AFTERNOON. THIS WILL
RESULT IN A CHANCE OF THUNDERSTORMS TONIGHT AND MONDAY. DRIER AIR
WILL FILTER SOUTHWARD ACROSS THE REGION MONDAY NIGHT INTO TUESDAY
BEHIND THIS SYSTEM. LOW TEMPERATURES TONIGHT WILL DROP INTO THE
MID AND UPPER 60S. HIGH TEMPERATURES ON MONDAY WILL REACH INTO THE
UPPER 70S TO AROUND 80.

&&

.SHORT TERM...(THIS EVENING THROUGH MONDAY)
ISSUED AT 252 PM EDT SUN AUG 9 2015

THE LARGE AREA OF SHOWERS AND EMBEDDED THUNDERSTORMS ACROSS
CENTRAL ILLINOIS EARLIER TODAY HAS DIMINISHED IN COVERAGE THIS
AFTERNOON AS IT APPROACHED WEST CENTRAL INDIANA. HOWEVER...ISOLATED
TO SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ACROSS
NORTHEAST INDIANA AND NORTHWEST OHIO ALONG A SOUTHWEST TO
NORTHEAST INSTABILITY AXIS. WHILE SHOWER/STORM COVERAGE IS
EXPECTED TO BE LIMITED THROUGH LATE AFTERNOON...STILL SUSPECTING
ADDITIONAL DEVELOPMENT MORE LIKELY LATE AFTERNOON/EVENING AS
REMNANT MCV AND POSSIBLE CHANNEL OF BETTER SOUTHWEST LOW LEVEL
FLOW INTERACTS WITH WEAK INSTABILITY AXIS. HAVE CONFINED LIKELY
POPS TO APPROXIMATELY SOUTHERN HALF OF THE FORECAST AREA THIS
EVENING...TAPERING TO CHANCE ACROSS THE NORTH. OVERALL LIMITED
INSTABILITY STILL LENDS TO SOME LOWER CONFIDENCE IN EXTENT OF
THUNDER COVERAGE...AND WILL MAINTAIN SLIGHT CHANCE NORTH TO CHANCE
SOUTH. WHILE SEVERE WEATHER DOES NOT APPEAR TO BE A CONCERN THIS
EVENING...INCREASING LOW LEVEL MOISTURE AND WARM CLOUD DEPTHS IN
EXCESS OF 12K FT COULD SUPPORT SOME LOCALIZED HEAVY DOWNPOURS.
OTHERWISE...DID ADD SOME PATCHY FOG MENTION FOR TONIGHT GIVEN
ABUNDANT LOW LEVEL MOISTURE...WEAK NEAR SFC MOISTURE
CONVERGENCE...AND LIGHT WINDS.

ON MONDAY...LARGE SCALE UPPER FORCING SHOULD INCREASE SOMEWHAT AS A
BROAD UPPER TROUGH TRACKS ACROSS THE GREAT LAKES REGION. MID LEVEL
LAPSE RATES SHOULD BECOME SLIGHTLY STEEPER WITH APPROACH OF THIS
TROUGH...AND WITH DEEPER MOISTURE IN PLACE NAM/GFS CONSENSUS OF 1500
J/KG SURFACE BASED CAPES SEEM REASONABLE. 30-35 KNOTS OF DEEP LAYER
SHEAR SHOULD ALSO ACCOMPANY THIS TROUGH....WHICH COULD YIELD SOME
ISOLATED STRONG/SEVERE THREAT. DEGREE OF DESTABILIZATION IS STILL
IN QUESTION HOWEVER...AND CONFIDENCE IN STRONG STORMS IS
RELATIVELY LOW. IF STRONGER DESTABILIZATION CAN OCCUR...BEST
CHANCE OF STRONG STORMS STILL APPEARS TO BE ACROSS EASTERN
PORTIONS OF THE FORECAST AREA WHERE INSTABILITY SHOULD BE
MAXIMIZED ALONG WITH MOST LIKELY POSITION OF STRONGER LOW LEVEL
CONVERGENCE AXIS/DEPARTING SFC REFLECTION.

&&

.LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)
ISSUED AT 252 PM EDT SUN AUG 9 2015

A FEW LINGERING SHOWERS MAY REMAIN IN THE EAST ON MONDAY NIGHT AS A
COLD FRONT MOVES THROUGH THE AREA. THESE SHOWERS WILL COME TO AN END
AS SUBSIDENCE ARRIVES IN THE AREA FROM WEST TO EAST. ANOTHER WEAK
SHORTWAVE WILL MOVE THROUGH ON TUESDAY...BUT LIMITED MOISTURE IN THE
WAKE OF THE FRONT SHOULD KEEP CONDITIONS DRY. MODERATE NORTHWEST
WINDS ARE EXPECTED ON TUESDAY AS THE PRESSURE GRADIENT TIGHTENS
ACROSS THE GREAT LAKES BETWEEN A DEEPENING LOW IN THE EAST AND A
BUILDING HIGH PRESSURE CENTER TO THE WEST. GIVEN THE MODERATE WIND
SPEEDS AND LONG FETCH ACROSS THE LAKE...BEACH HAZARDS HEADLINES MAY
BE NECESSARY.

BEYOND TUESDAY...HIGH PRESSURE OVERHEAD WILL PROMOTE DRY WEATHER AND
NEAR NORMAL TEMPERATURES. MODELS ARE HINTING AT A FRONTAL BOUNDARY
MOVING INTO THE AREA NEXT WEEKEND...BUT WITH THE UPPER FORCING
REMAINING WELL NORTH INTO CANADA...KEPT FORECAST DRY AT THIS TIME.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z MONDAY AFTERNOON)
ISSUED AT 154 PM EDT SUN AUG 9 2015

LARGE AREA OF RAIN AND EMBEDDED THUNDER HAS DIMINISHED IN COVERAGE
ACROSS EAST CENTRAL ILLINOIS THIS AFTERNOON APPROACHING THE LOCAL
AREA...WITH ADDITIONAL ISOLATED TO SCATTERED SHOWERS CONTINUING
TO DEVELOP ALONG A SOUTHWEST-NORTHEAST INSTABILITY AXIS ACROSS
NORTHEAST INDIANA. NOT A GREAT DEAL OF SHOWER COVERAGE IS EXPECTED
IN THE NEXT 2-4 HOUR PERIOD...BUT WITH MODEST SOUTHWEST LOW LEVEL
JET SETTING UP LATE AFTERNOON/EARLY EVENING AND APPROACH OF A
REMNANT CONVECTIVE VORT MAX ACROSS EAST CENTRAL ILLINOIS WOULD
SUSPECT SCATTERED SHOWER/ISOLATED THUNDERSTORM DEVELOPMENT WILL
BECOME MORE PREVALENT TOWARD EVENING. WITH OVERALL INSTABILITY
MAGNITUDE EXPECTED TO REMAIN RELATIVELY LIMITED...HAVE LIMITED
THUNDER MENTION TO VCTS AT KFWA THROUGH EARLY EVENING. ABUNDANT
LOW LEVEL MOISTURE AND LIGHT WINDS SHOULD PROMOTE FOG FORMATION
ONCE AGAIN TONIGHT...WITH SOME LOW STRATUS ALSO POSSIBLY
REDEVELOPING. WILL TREND KSBN TO IFR CONDITIONS OVERNIGHT...AND
KEEP MVFR CONDITIONS AT KFWA...ALTHOUGH IT IS POSSIBLE LATER
AMENDMENTS/ISSUANCES MAY NEED TO GO MORE PESSIMISTIC. HAVE KEPT
PRECIP OUT OF FORECAST FOR TOMORROW...BUT MODERATE INSTABILITY AND
SOME DEGREE OF UPPER FORCING MAY REQUIRE SOME SHRA OR TSRA MENTION
IN LATER FORECASTS FOR MONDAY.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...NONE.
&&

SYNOPSIS...MARSILI
SHORT TERM...MARSILI
LONG TERM...BENTLEY
AVIATION...MARSILI

VISIT US AT WWW.WEATHER.GOV/IWX (ALL LOWER CASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSNORTHERNINDIANA
WWW.TWITTER.COM/NWSIWX
WWW.YOUTUBE.COM/NWSNORTHERNINDIANA
Hazardous weather outlook, Aug 9, 3:57 AM EDT, 15 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
357 AM EDT SUN AUG 9 2015

INZ004>009-012>018-020-022>027-032>034-MIZ078>081-OHZ001-002-004-005-
015-016-024-025-100800-
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-CASS MI-
ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...SOUTH BEND...MISHAWAKA...ELKHART...
GOSHEN...LAGRANGE...TOPEKA...ANGOLA...KENDALLVILLE...LIGONIER...
AUBURN...GARRETT...KNOX...NORTH JUDSON...WINAMAC...FRANCESVILLE...
PLYMOUTH...BREMEN...ROCHESTER...WARSAW...WINONA LAKE...
COLUMBIA CITY...SOUTH WHITLEY...FORT WAYNE...MONTICELLO...
BROOKSTON...LOGANSPORT...PERU...WABASH...NORTH MANCHESTER...
HUNTINGTON...BLUFFTON...OSSIAN...DECATUR...BERNE...MARION...
HARTFORD CITY...MONTPELIER...PORTLAND...DOWAGIAC...CASSOPOLIS...
STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...WAUSEON...
ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA...
PANDORA...VAN WERT...DELPHOS...LIMA
357 AM EDT SUN AUG 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO...
NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON. SEVERE STORMS
ARE NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS MONDAY. SEVERE STORMS ARE NOT
ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX

INZ003-LMZ043-046-MIZ077-100800-
LA PORTE-NEW BUFFALO MI TO ST JOSEPH MI-
MICHIGAN CITY IN TO NEW BUFFALO MI-BERRIEN-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN
357 AM EDT SUN AUG 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN...NORTHERN INDIANA AND THE NEARSHORE WATERS OF SOUTHEASTERN
LAKE MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON. SEVERE STORMS
ARE NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS MONDAY. SEVERE STORMS ARE NOT
ANTICIPATED AT THIS TIME.

INCREASING NORTHERLY WINDS AND BUILDING WAVES MAY RESULT IN HAZARDOUS
BOATING AND SWIMMING CONDITIONS LATE MONDAY THROUGH EARLY
WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

&&

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, Aug 9, 7:03 PM EDT, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
703 PM EDT SUN AUG 9 2015

OHZ016-024-025-092345-
PUTNAM-VAN WERT-ALLEN-
703 PM EDT SUN AUG 9 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT VAN WERT...SOUTHWESTERN
PUTNAM AND WEST CENTRAL ALLEN COUNTIES...

AT 700 PM EDT...A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN WERE
ALONG A LINE EXTENDING FROM NEAR CONVOY TO NEAR DELPHOS...AND MOVING
SLOWLY EAST NORTHEAST AT 10 MPH. RAINFALL RATES OF 1 TO 2 INCHES PER
HOUR ARE POSSIBLE WITH THESE STORMS ALONG WITH WIND GUSTS TO 35 MPH.

LOCATIONS IMPACTED INCLUDE...
VAN WERT...DELPHOS...ELIDA...KALIDA...CONVOY...OTTOVILLE...OHIO
CITY...MIDDLEBURY...MIDDLE POINT...FORT JENNINGS...WILLSHIRE...
WREN...VENEDOCIA...ELGIN...RIMER...DULL...GOMER...SOUTHWORTH...
JONESTOWN AND SCHUMM.

TORRENTIAL RAINFALL IS LIKELY OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4098 8479 4098 8438 4102 8411 4074 8422
      4074 8454 4075 8480
TIME...MOT...LOC 2300Z 274DEG 5KT 4087 8473 4082 8436

SLL
Special weather statement, Aug 9, 7:09 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
709 PM EDT SUN AUG 9 2015

INZ025>027-032>034-092345-
JAY-HUNTINGTON-ADAMS-BLACKFORD-WELLS-GRANT-
709 PM EDT SUN AUG 9 2015

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT JAY...WELLS...SOUTHERN
HUNTINGTON...EASTERN GRANT...ADAMS AND BLACKFORD COUNTIES...

AT 707 PM EDT...AN AREA OF STRONG THUNDERSTORMS WITH HEAVY RAINFALL
WERE LOCATED OVER EAST CENTRAL INDIANA MOVING SLOWLY EAST AT 10 MPH.

RAINFALL RATES OF 1 TO 2 INCHES PER HOUR AND WINDS UP TO 35 MPH ARE
POSSIBLE WITH THESE STORMS. BRIEF HEAVY DOWNPOURS COULD CAUSE
LOCALIZED FLOODING IN LOW LYING AREAS.

LOCATIONS IMPACTED INCLUDE...
BLUFFTON...DECATUR...PORTLAND...HARTFORD CITY...GAS CITY...BERNE...
UPLAND...DUNKIRK...MONTPELIER...REDKEY...GENEVA...VAN BUREN...
MONROE...PENNVILLE...MATTHEWS...WESTCHESTER...SALEM...CENTER...WARREN
AND PREBLE.

THIS INCLUDES INTERSTATE 69 IN INDIANA BETWEEN MILE MARKERS 253 AND
280.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4036 8522 4038 8523 4038 8555 4070 8564
      4089 8483 4079 8480 4032 8481
TIME...MOT...LOC 2307Z 268DEG 16KT 4062 8502

SLL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 7:48 PM EDTFlash Flood WarningIWXBlackford, Jay3 hr
Aug 9, 7:03 PM EDTSpecial Weather StatementIWXVan Wert42 min

Nearby

Special Weather Statements in Indiana, 2015Every special weather statement 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.