Alert archive / Iowa / Tornado Warnings in 2000

Tornado Warning 8, NWS La Crosse, WI

June 15, 2000Chickasaw County, Fayette County, Iowa

NWS La Crosse, WI issued this tornado warning at Jun 15, 2000, 8:32 PM CDT for Chickasaw County, Fayette County, Iowa. It was in force for 73 min. No storm report in the archive falls 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.

The facts

Issued
Jun 15, 2000, 8:32 PM CDT (01:32 UTC)
Expired
Jun 15, 2000, 9:45 PM CDT
In force
73 min
Issued by
NWS La Crosse, WI
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Chickasaw County, IA, Fayette County, IA

The radar

The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 01:33 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

Davenport, (KDVN), launched 00:00Z, 1.5 hours before the alert went out and 197 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, Davenport, at 00:00Z on 2000-06-16Temperature 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, Davenport, at 00:00Z on 2000-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.1939587897Sfc1 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
1949 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
206 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 
WFUS53 KARX 160133
TORLSE
IAC037-065-160245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
832 PM CDT THU JUN 15 2000

THE NATIONAL WEATHER SERVICE IN IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  FAYETTE COUNTY IN NORTHEAST IOWA
  CHICKASAW COUNTY IN NORTHEAST IOWA

* UNTIL 945 PM CDT

* AT 831 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED   
  TO INDICATED A POSSIBLE TORNADO NEAR FREDERICKSBURG...10 MILES 
  SOUTHWEST OF WAUCOMA...MOVING EAST AT 45 MPH.

* THE POSSIBLE TORNADO IS EXPECTED TO BE...
  NEAR WEST UNION AT 845 PM CDT
  NEAR CLERMONT AT 855 PM CDT
  NEAR ELGIN AT 900 PM CDT

PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

RRS

LAT...LON 4308 9223 4291 9221 4290 9161 4308 9163

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 7:49 PM CDTTornado WarningARXChickasaw, Floyd41 min
Jun 15, 9:00 PM CDTSevere Thunderstorm WarningARXAllamakee45 min
Jun 15, 9:45 PM CDTSevere Thunderstorm WarningARXAllamakee, Winneshiek45 min

Nearby

Tornado Warnings in Iowa, 2000Every tornado warning in 2000Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.