Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 165, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2017, 3:38 PM CDT for 4 counties in Minnesota. It was in force for 37 min. 3 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
- Jul 19, 2017, 3:38 PM CDT (20:38 UTC)
- Expired
- Jul 19, 2017, 4:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Blue Earth County, MN, Le Sueur County, MN, Rice County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 87 km from the middle of the area, began a volume at 20:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 3:42 PM CDT | TSTM WND DMG | 4 Sw Janesville, MN | TWO TREES DOWN ALONG COUNTY LINE ROAD. |
| Jul 19, 3:42 PM CDT | TSTM WND DMG | Janesville, MN | TREE DOWN. |
| Jul 19, 4:05 PM CDT | TSTM WND GST 48 | 2 Sse Waseca, MN | MESONET STATION MN039, WASECA 1SSE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 19, 12:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.6 hours before the alert went out and 87 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
- 1964 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
936
WUUS53 KMPX 192038
SVRMPX
MNC013-079-131-161-192115-
/O.NEW.KMPX.SV.W.0165.170719T2038Z-170719T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
338 PM CDT WED JUL 19 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Le Sueur County in south central Minnesota...
Eastern Blue Earth County in south central Minnesota...
Waseca County in south central Minnesota...
Southwestern Rice County in south central Minnesota...
* Until 415 PM CDT
* At 338 PM CDT, severe thunderstorms were located along a line
extending from near Kasota to St. Clair to near Mapleton, moving
east at 60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near,
Janesville and Pemberton around 345 PM CDT.
Waseca, Elysian and Waldorf around 355 PM CDT.
Waterville around 400 PM CDT.
New Richland around 405 PM CDT.
Morristown around 410 PM CDT.
Other locations impacted by these severe thunderstorms include
Otisco, Alma City, Smiths Mill and Greenland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4409 9385 4427 9391 4427 9341 4385 9341
4385 9387
TIME...MOT...LOC 2038Z 271DEG 51KT 4425 9403 4410 9387 4387 9402
HAIL...0.75IN
WIND...60MPH
$$1 follow-up statement
740
WWUS53 KMPX 192111
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
411 PM CDT WED JUL 19 2017
MNC013-079-131-161-192120-
/O.EXP.KMPX.SV.W.0165.000000T0000Z-170719T2115Z/
Le Sueur MN-Blue Earth MN-Waseca MN-Rice MN-
411 PM CDT WED JUL 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LE SUEUR...
EASTERN BLUE EARTH...WASECA AND SOUTHWESTERN RICE COUNTIES WILL
EXPIRE AT 415 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 600 PM CDT for
south central Minnesota.
Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Waseca county.
LAT...LON 4409 9385 4427 9391 4427 9341 4385 9341
4385 9387
TIME...MOT...LOC 2110Z 271DEG 51KT 4424 9340 4409 9324 4386 9340
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:06 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 39 min |
| Jul 19, 2:38 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Watonwan | 52 min |
| Jul 19, 2:51 PM CDT | Tornado Warning | MPX | Brown | 24 min |
| Jul 19, 3:11 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet, Watonwan | 34 min |
| Jul 19, 3:50 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 40 min |
| Jul 19, 3:57 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 18 min |
| Jul 19, 4:02 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 43 min |
| Jul 19, 4:06 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 39 min |
| Jul 19, 4:40 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 20 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.