Alert archive / Indiana / Tornado Warnings in 2001

Tornado Warning 4, NWS Northern Indiana

April 9, 2001Jay County, Indiana

NWS Northern Indiana issued this tornado warning at Apr 9, 2001, 7:29 PM EST for Jay County, Indiana. It was in force for 51 min. 2 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, 7:29 PM EST (00:29 UTC)
Expired: Apr 9, 2001, 8:20 PM EST
In force: 51 min
Issued by: NWS Northern Indiana
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Jay County, IN

The radar

The Northern Indiana radar (KIWX), 118 km from the middle of the area, began a volume at 00:30 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	Remark
Apr 9, 7:40 PM EST	Hail 1.75	Portland, IN
Apr 9, 7:42 PM EST	Hail 1.75	Pennville, 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 00:00Z, 0.5 hours before the alert went out and 152 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: 1457 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1624 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KIWX 100030
TORFWA
INC075-100120-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
729 PM EST MON APR 9 2001

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  JAY COUNTY IN INDIANA

* UNTIL 820 PM EST

* AT 729 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  A POSSIBLE TORNADO 7 MILES WEST OF PENNVILLE...MOVING SOUTHEAST AT
  25 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  PENNVILLE
  PORTLAND
  SALAMONIA

FUNNEL CLOUDS AND SOFTBALL SIZED HAIL HAVE BEEN REPORTED WITH THIS 
STORM! SEEK SHELTER INDOORS IMMEDIATELY!

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM ON THE
LOWEST FLOOR AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FOREC7AST
OFFICE IN NORTHERN INDIANA.

LAT...LON 4057 8519 4039 8522 4020 8477 4044 8465

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:02 PM EST	Tornado Warning	IWX	Huntington, Wabash	48 min
Apr 9, 7:19 PM EST	Severe Thunderstorm Warning	IWX	Grant	56 min
Apr 9, 7:37 PM EST	Severe Thunderstorm Warning	IWX	Miami	23 min
Apr 9, 7:48 PM EST	Tornado Warning	IWX	Blackford, Grant	62 min
Apr 9, 10:38 PM EST	Severe Thunderstorm Warning	IWX	White	42 min
Apr 10, 12:04 AM EST	Severe Thunderstorm Warning	IWX	White	26 min
Apr 10, 12:51 AM EST	Severe Thunderstorm Warning	IWX	Kosciusko	39 min
Apr 10, 1:04 AM EST	Severe Thunderstorm Warning	IWX	Noble	26 min
Apr 10, 1:28 AM EST	Severe Thunderstorm Warning	IWX	DeKalb, Noble, Steuben	62 min

Nearby

Tornado Warnings in Indiana, 2001 Every tornado warning in 2001 Tornadoes 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.