Alert archive / Iowa / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 113, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 15, 2017, 6:37 PM CDT for Chickasaw 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
- Jun 15, 2017, 6:37 PM CDT (23:37 UTC)
- Expired
- Jun 15, 2017, 7:00 PM CDT
- In force
- 23 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Chickasaw County, IA
The radar
The La Crosse radar (KARX), 134 km from the middle of the area, began a volume at 23:39 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 12:00Z, 11.6 hours before the alert went out and 208 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
- 394 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 1162 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
758
WUUS53 KARX 152337
SVRARX
IAC037-160000-
/O.NEW.KARX.SV.W.0113.170615T2337Z-170616T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
637 PM CDT THU JUN 15 2017
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Southeastern Chickasaw County in northeastern Iowa...
* Until 700 PM CDT
* At 636 PM CDT, a severe thunderstorm was located near Tripoli, or
12 miles south of New Hampton, moving east-northeast at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Fredericksburg around 650 PM CDT.
Other locations impacted by this severe thunderstorm include Highway
18 And County V 56 and Republic.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4291 9246 4294 9247 4299 9208 4291 9208
TIME...MOT...LOC 2336Z 261DEG 34KT 4288 9232
HAIL...1.25IN
WIND...60MPH
$$
CA1 follow-up statement
384
WWUS53 KARX 152351
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
651 PM CDT THU JUN 15 2017
IAC037-160000-
/O.CON.KARX.SV.W.0113.000000T0000Z-170616T0000Z/
Chickasaw IA-
651 PM CDT THU JUN 15 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHEASTERN CHICKASAW COUNTY...
At 650 PM CDT, a severe thunderstorm was located near Sumner, or 13
miles southeast of New Hampton, moving east-northeast at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Trained weather spotters. This storm has a history of
producing golf ball size hail.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
this severe thunderstorm will remain over mainly rural areas of
southeastern Chickasaw County, including the following locations:
Highway 18 And County V 56.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4291 9234 4295 9235 4299 9208 4291 9208
TIME...MOT...LOC 2350Z 259DEG 34KT 4291 9214
HAIL...1.25IN
WIND...60MPH
$$
CAThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 6:14 PM CDT | Special Weather Statement | ARX | Chickasaw | 31 min |
| Jun 15, 6:52 PM CDT | Special Weather Statement | ARX | Fayette | 23 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2017Every severe thunderstorm warning in 2017
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.