Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 1, NWS La Crosse, WI

March 30, 2005Mitchell County, Iowa

NWS La Crosse, WI issued this tornado warning at Mar 30, 2005, 1:52 PM CST for Mitchell County, Iowa. It was in force for 23 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
Mar 30, 2005, 1:52 PM CST (19:52 UTC)
Expired
Mar 30, 2005, 2:15 PM CST
In force
23 min
Issued by
NWS La Crosse, WI
Area
Counties, with a storm outline in the text

County Mitchell County, IA

The radar

The La Crosse radar (KARX), 156 km from the middle of the area, began a volume at 19:52 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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 30, 8:40 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.9 hours before the alert went out and 279 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 12:00Z on 2005-03-30Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2005-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 140 square meters per square second.19395878Sfc1 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
1316 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
316 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KARX 301952
TORARX
IAC131-302015-
/O.NEW.KARX.TO.W.0001.050330T1952Z-050330T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
152 PM CST WED MAR 30 2005

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  MITCHELL COUNTY IN NORTH CENTRAL IOWA

* UNTIL 215 PM CST

* AT 152 PM CST...NATIONAL WEATHER SERVICE RADAR DETECTED A TORNADO 6
  MILES SOUTHWEST OF STATE ROAD 9 AND COUNTY S 70...OR ABOUT 8 MILES
  NORTHEAST OF MASON CITY. THE TORNADO WAS MOVING NORTH AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  MITCHELL AND OSAGE AROUND 200 PM CST...
  ST. ANSGAR AND HIGHWAY 18 AND COUNTY T 38 AROUND 205 PM CST...
  TOETERVILLE AND OTRANTO PARK AROUND 210 PM CST...
  MONA AND OTRANTO AROUND 215 PM CST...

THIS STORM HAS A HISTORY OF PRODUCING A TORNADO TAKE COVER IN A
BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY
FROM WINDOWS

LAT...LON 4321 9322 4322 9282 4349 9272 4349 9304

$$

RIECK
1 follow-up statement
000 
WWUS53 KARX 302002
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
201 PM CST WED MAR 30 2005

IAC131-302015-
/O.CON.KARX.TO.W.0001.000000T0000Z-050330T2015Z/
MITCHELL IA-
201 PM CST WED MAR 30 2005

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CST FOR MITCHELL
COUNTY...

AT 201 PM CST...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE 
THUNDERSTORM PRODUCING A POSSIBLE TORNADO 2 MILES NORTHWEST OF STATE 
ROAD 9 AND COUNTY T 26...OR ABOUT 8 MILES WEST OF OSAGE. MOVEMENT 
WAS NORTH AT 35 MPH.

THE POSSIBLE TORNADO WILL BE NEAR...OSAGE SPRING PARK AND COUNTY 
ROADS A 39 AND S 70 AROUND 200 PM CST...MITCHELL AND OSAGE AROUND 
205 PM CST...ST. ANSGAR AND HIGHWAY 218 AND COUNTY T 40 AROUND 210 
PM CST...MONA AND STACYVILLE AROUND 215 PM CST...

THIS STORM HAS A HISTORY OF PRODUCING A TORNADO TAKE COVER IN A
BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR AND STAY AWAY
FROM WINDOWS

LAT...LON 4321 9322 4322 9282 4349 9272 4349 9304

$$

RIECK

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 2:15 PM CSTTornado WarningARXMitchell30 min

Nearby

Tornado Warnings in Iowa, 2005Every tornado warning in 2005Tornadoes in 2005

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.