Alert archive / Iowa / Tornado Warnings in 2020
Tornado Warning 2, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Mar 28, 2020, 6:52 PM CDT for Clayton County, Iowa. It was in force for 53 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 28, 2020, 6:52 PM CDT (23:52 UTC)
- Expired
- Mar 28, 2020, 7:45 PM CDT
- In force
- 53 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Clayton County, IA
The radar
The La Crosse radar (KARX), 104 km from the middle of the area, began a volume at 23:54 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 |
|---|---|---|---|
| Mar 28, 7:15 PM CDT | FUNNEL CLOUD | Saint Olaf, IA | . |
| Mar 28, 7:15 PM CDT | FUNNEL CLOUD | Saint Olaf, IA | |
| Mar 28, 7:15 PM CDT | HAIL 1 | Elkader, IA | . |
| Mar 28, 7:15 PM CDT | HAIL 1 | Elkader, IA | |
| Mar 28, 7:20 PM CDT | HAIL 0.25 | 2 N Farmersburg, IA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.9 hours before the alert went out and 157 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- -128 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
401
WFUS53 KARX 282352
TORARX
IAC043-290045-
/O.NEW.KARX.TO.W.0002.200328T2352Z-200329T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
652 PM CDT Sat Mar 28 2020
The National Weather Service in La Crosse has issued a
* Tornado Warning for...
Western Clayton County in northeastern Iowa...
* Until 745 PM CDT.
* At 652 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Arlington, or 12 miles southwest of Elkader,
moving northeast at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Elkader around 710 PM CDT.
Farmersburg around 720 PM CDT.
McGregor around 730 PM CDT.
Marquette around 735 PM CDT.
Other locations impacted by this tornadic thunderstorm include Spook
Cave Campground, Mederville, Giard, Highway 13 And County C 24,
National, Pikes Peak State Park and Osborne.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
La Crosse.
&&
LAT...LON 4287 9161 4308 9125 4308 9118 4298 9116
4296 9114 4291 9114 4289 9111 4264 9158
4264 9160
TIME...MOT...LOC 2352Z 224DEG 39KT 4276 9162
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
JAM3 follow-up statements
760
WWUS53 KARX 290001
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
701 PM CDT Sat Mar 28 2020
IAC043-290045-
/O.CON.KARX.TO.W.0002.000000T0000Z-200329T0045Z/
Clayton IA-
701 PM CDT Sat Mar 28 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR WESTERN
CLAYTON COUNTY...
At 701 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Volga, or near Elkader, moving northeast at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Elkader around 710 PM CDT.
Garnavillo and Farmersburg around 720 PM CDT.
McGregor and Marquette around 730 PM CDT.
Other locations impacted by this tornadic thunderstorm include Spook
Cave Campground, Mederville, Giard, Highway 13 And County C 24,
National, Pikes Peak State Park and Osborne.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 4287 9161 4308 9125 4308 9118 4298 9116
4296 9114 4291 9114 4289 9111 4264 9158
4264 9160
TIME...MOT...LOC 0001Z 236DEG 38KT 4279 9149
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
JAM149
WWUS53 KARX 290019
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
719 PM CDT Sat Mar 28 2020
IAC043-290045-
/O.CON.KARX.TO.W.0002.000000T0000Z-200329T0045Z/
Clayton IA-
719 PM CDT Sat Mar 28 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR WESTERN
CLAYTON COUNTY...
At 719 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Garnavillo, or near Elkader, moving northeast at 45
mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
McGregor and Marquette around 735 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Froelich, Spook Cave Campground, Mederville, Motor, Communia, Giard
and Clayton Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 4283 9155 4293 9151 4308 9125 4308 9118
4298 9116 4296 9114 4291 9114 4289 9111
4264 9158 4264 9160
TIME...MOT...LOC 0019Z 228DEG 39KT 4289 9130
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
JAM388
WWUS53 KARX 290036
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
736 PM CDT Sat Mar 28 2020
IAC043-290045-
/O.EXP.KARX.TO.W.0002.000000T0000Z-200329T0045Z/
Clayton IA-
736 PM CDT Sat Mar 28 2020
...THE TORNADO WARNING FOR WESTERN CLAYTON COUNTY WILL EXPIRE AT 745
PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However small hail
and gusty winds are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
La Crosse.
LAT...LON 4283 9155 4293 9151 4308 9125 4308 9118
4298 9116 4296 9114 4291 9114 4289 9111
4264 9158 4264 9160
TIME...MOT...LOC 0035Z 224DEG 39KT 4301 9114
$$
JAMThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 3:44 PM CDT | Special Weather Statement | ARX | Allamakee, Clayton | 46 min |
| Mar 28, 6:18 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 42 min |
| Mar 28, 6:30 PM CDT | Tornado Warning | ARX | Fayette | 45 min |
Nearby
Tornado Warnings in Iowa, 2020Every tornado warning in 2020Tornadoes in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.