Alert archive / Indiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 14, NWS Northern Indiana

April 9, 2001Grant County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 9, 2001, 6:41 PM EST for Grant County, Indiana. It was in force for 39 min. 4 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 9, 2001, 6:41 PM EST (23:41 UTC)
Expired: Apr 9, 2001, 7:20 PM EST
In force: 39 min
Issued by: NWS Northern Indiana
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Grant County, IN

The radar

The Northern Indiana radar (KIWX), 81 km from the middle of the area, began a volume at 23:44 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.

What was reported inside it

Time	Report	Where
Apr 9, 6:56 PM EST	Hail 1.25	Fulton, IN
Apr 9, 7:03 PM EST	Hail 1.75	Erie, IN
Apr 9, 7:30 PM EST	Hail 0.88	Hartford City, IN
Apr 9, 7:30 PM EST	Hail 1	Marion, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 9, 6:15 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.7 hours before the alert went out and 203 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: 554 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 1060 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIWX 092342
SVRFWA
INC053-069-100015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
641 PM EST MON APR 9 2001

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GRANT COUNTY IN INDIANA
  EXTREME SOUTHERN HUNTINGTON COUNTY IN INDIANA

* UNTIL 720 PM EST

* AT 641 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES WEST OF VAN BUREN...MOVING EAST AT 30
  MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  VAN BUREN
  BANQUO
  THE NORTHEAST SIDE OF MARION

GOLF BALL SIZE HAIL IS LIKELY WITH THIS STORM.

SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS. SEVERE
STORMS CAN PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVIgCE FORECAST
OFFICE IN NORTHERN INDIANA.

LAT...LON 4068 8566 4060 8583 4051 8547 4060 8547
          4075 8546

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 Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 9, 3:00 PM EST, 3 hours 41 minutes earlier.

Area forecast discussion, Apr 9, 3:00 PM EST, 3 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
300 PM EST MON APR 9 2001

MID-MS TO LWR OH VLY RAPIDLY DESTABILIZING THIS AFT WITH 18Z MSAS LI
TO M6-8C...LAPS CAPES TO 2400 J/KG. INCRSG INSTABILITY WITH SVRL AM
CONVECTION OUTFLOW BNDRIES S OF FA FOR CONVECTION TO FOCUS ON THIS
EVE/TONIGHT. WLCI3 925MB WIND FIELD HAS BACKED AND INCREASED TO
20-25KT SWRLY. ETA/RUC40 INDICATING CONV ACRS NRN FA WL BE SLIGHTLY
ELEVATED. 1000-850MB MFLUX CONVG MAX ACRS SRN FA BY 00Z. WL
CONCENTRATE LKLY POPS WITH STRONG WORDING IN SRN FA WITH STRONG
STORM WORDING TO HI CHC SCT POPS SHRA/TSRA MI ZNS.

IN LONGER TERM NGM SEEMS TO WEAKEN LEAD DAKOTAS WAVE TO QUICK AS IT
LIFTS INTO UPR GRTLKS. ALSO NOTING NCEP CONCERNS WITH NGM HANDLING
OF THE NEXT WAVE EJECTING OUT OF INTRMTN REGION...HAVE LEANED TO
ETA/AVN SOLN. CONTD LLVL CONVG NEXT FEW DAYS WL NECESSITATE CONT
POPS THROUGH DY3 SPCLY SRN FA. MISFWA IN A FEW.

.IWX...NONE.
PBM

In the hours before

Local storm report, Apr 9, 5:54 PM EST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
554 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0535 PM    ONWARD                    IN   1 INCH HAIL
04/09/01   CASS                           REPORTED BY PUBLIC.

0544 PM    7 SSW PERU                IN   1.75 INCH HAIL
04/09/01   MIAMI

0545 PM    MEXICO                    IN   1 INCH HAIL
04/09/01   MIAMI                          REPORTED BY FIRE AND
                                          RESCUE.

0550 PM    9 SSE PERU                IN   1 INCH HAIL
04/09/01   MIAMI                          REPORTED BY STORM=
                                          SPOTTER.

Local storm report, Apr 9, 6:00 PM EST, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
600 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0555 PM    BUNKER HILL               IN   1.75 INCH HAIL
04/09/01   MIAMI                          CARS BEING DAMAGED BY
                                          LARGE HAIL

@RUKWBCe	KDENWWUS53 KIWX 092300
LSRFWA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
600 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0555 PM    BUNKER HILL               IN   1.75 INCH HAIL
04/09/01   MIAMI                          CARS BEING DAMAGED BY
                                          LARGE HAIL

Local storm report, Apr 9, 6:05 PM EST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
605 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0556 PM    3 SW NORTH JUDSON         IN   1.75 INCH HAIL
04/09/01   STARKE                         REPORTED BY STORM
                                          SPOTTER.

0600 PM    1 W PERU                  IN   .75 INCH HAIL
04/09/01   MIAMI                          REPORTED BY EMERGENCY
                                          MANAGEMENT.

Local storm report, Apr 9, 6:11 PM EST, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
611 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0533 PM    SOMERSET                  IN   .75 INCH HAIL
04/09/01   WABASH                         REPORTED BY HAM RADIO
                                          OPERATOR.

0552 PM    3 NW MEDARYVILLE          IN   1.75 INCH HAIL
04/09/01   PULASKI                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Apr 9, 6:25 PM EST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
625 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION...4.

0623 PM    9 S WABASH                IN   .75 INCH HAIL
04/09/01   WABASH                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, Apr 9, 6:31 PM EST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
631 PM EST MON APR 09 2001

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION...B.

0629 PM    SOMERSET                  IN   .75 INCH HAIL
04/09/01   WABASH                         REPORTED BY STORM
                                          SPOTTER.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 11:17 PM EST	Severe Thunderstorm Warning	IWX	Elkhart, LaGrange	33 min
Apr 9, 6:47 AM EST	Severe Thunderstorm Warning	IWX	Saint Joseph	43 min
Apr 9, 5:19 PM EST	Severe Thunderstorm Warning	IWX	Cass, Miami	31 min
Apr 9, 5:43 PM EST	Severe Thunderstorm Warning	IWX	Grant, Wabash	47 min
Apr 9, 5:48 PM EST	Severe Thunderstorm Warning	IWX	Pulaski	62 min
Apr 9, 5:52 PM EST	Severe Thunderstorm Warning	IWX	Miami	28 min
Apr 9, 6:19 PM EST	Severe Thunderstorm Warning	IWX	Huntington	61 min
Apr 9, 6:22 PM EST	Severe Thunderstorm Warning	IWX	Cass, Fulton	58 min
Apr 9, 6:32 PM EST	Severe Thunderstorm Warning	IWX	Wabash	18 min
Apr 9, 6:42 PM EST	Tornado Warning	IWX	Cass, Miami	38 min
Apr 9, 6:55 PM EST	Tornado Warning	IWX	Blackford, Grant	50 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.