Alert archive / Indiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 4, NWS Northern Indiana

April 7, 2000Allen County, DeKalb County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 7, 2000, 3:45 PM EST for Allen County, DeKalb County, Indiana. It was in force for 45 min. 1 report 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 7, 2000, 3:45 PM EST (20:45 UTC)
Expired: Apr 7, 2000, 4:30 PM EST
In force: 45 min
Issued by: NWS Northern Indiana
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Allen County, IN, DeKalb County, IN

The radar

The Northern Indiana radar (KIWX), 53 km from the middle of the area, began a volume at 20:45 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 7, 4:00 PM EST	Hail 0.88	Grabill, 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 nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 8.8 hours before the alert went out and 210 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1613 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 188 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.

000 
WUUS53 KIWX 072047
SVRFWA
INC003-033-072130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
345 PM EST FRI APR 7 2000

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ALLEN COUNTY IN INDIANA
  SOUTHERN DE KALB COUNTY IN INDIANA

* UNTIL 430 PM EST

* AT 340 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF HUNTERTOWN...OR ABOUT 11
  MILES NORTHWEST OF FORT WAYNE...MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...
  HUNTERTOWN
  GRABILL
  ALTONA
  WOODBURN
  GARRETT
  AUBURN
  ST. JOE
  FORT WAYNE

DIME-SIZED HAIL HAS BEEN REPORTED WITH THIS STORM. SEEK SHELTER IN A 
STURDY BUILDING.

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

LAT...LON 4130 8521 4110 8526 4112 8480 4141 8479
          4143 8518

ADOLPHSON
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 2:36 PM EST	Severe Thunderstorm Warning	IWX	Fulton	44 min
Apr 7, 2:57 PM EST	Severe Thunderstorm Warning	IWX	Kosciusko	43 min
Apr 7, 3:31 PM EST	Severe Thunderstorm Warning	IWX	Noble, Whitley	29 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2000 Every severe thunderstorm warning in 2000

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.