Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 69, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 12, 2017, 12:54 PM CDT for Blue Earth County, Waseca County, Minnesota. It was in force for 36 min. 1 report 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
- Jun 12, 2017, 12:54 PM CDT (17:54 UTC)
- Expired
- Jun 12, 2017, 1:30 PM CDT
- In force
- 36 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Blue Earth County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 100 km from the middle of the area, began a volume at 17:56 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 |
|---|---|---|---|
| Jun 12, 12:55 PM CDT | TSTM WND DMG | Amboy, MN | POWER LINES DOWN ON THE EAST SIDE OF AMBOY. |
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 |
|---|---|---|---|
| Jun 12, 11:47 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.9 hours before the alert went out and 100 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
- 1135 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -73 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
505
WUUS53 KMPX 121754
SVRMPX
MNC013-161-121830-
/O.NEW.KMPX.SV.W.0069.170612T1754Z-170612T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1254 PM CDT MON JUN 12 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Blue Earth County in south central Minnesota...
Western Waseca County in south central Minnesota...
* Until 130 PM CDT
* At 1254 PM CDT, a severe thunderstorm was located near Mapleton, or
19 miles south of Mankato, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near,
St. Clair and Pemberton around 115 PM CDT.
Janesville around 125 PM CDT.
Other locations impacted by this severe thunderstorm include Otisco,
Alma City, Garden City, Smiths Mill and Skyline.
This includes the following highways...
U.S. Highway 14 between mile markers 142 and 154, and between mile
markers 156 and 157.
U.S. Highway 169 between mile markers 26 and 46.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4386 9424 4413 9416 4415 9391 4415 9361
4405 9355 4395 9351 4384 9388 4384 9413
TIME...MOT...LOC 1754Z 223DEG 38KT 4388 9398
HAIL...0.75IN
WIND...60MPH
$$1 follow-up statement
579
WWUS53 KMPX 121819
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
119 PM CDT MON JUN 12 2017
MNC013-161-121830-
/O.CON.KMPX.SV.W.0069.000000T0000Z-170612T1830Z/
Blue Earth MN-Waseca MN-
119 PM CDT MON JUN 12 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR SOUTHEASTERN BLUE EARTH AND WESTERN WASECA COUNTIES...
At 118 PM CDT, severe thunderstorms were located along a line
extending from near Smiths Mill to near Alma City to near Minnesota
Lake, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Mankato, Janesville, Mapleton, St. Clair, Pemberton, Waldorf, Otisco,
Skyline, Alma City and Smiths Mill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4397 9400 4414 9409 4415 9391 4415 9361
4405 9355 4395 9351 4384 9388 4384 9401
TIME...MOT...LOC 1818Z 224DEG 36KT 4414 9381 4400 9367 4381 9380
HAIL...0.75IN
WIND...60MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 10:59 PM CDT | Dense Fog Advisory | MPX | Anoka, Benton, Brown, Carver, Chippewa, Chisago and 24 more | 9 hr |
| Jun 12, 8:48 AM CDT | Special Weather Statement | MPX | Blue Earth | 27 min |
| Jun 12, 9:10 AM CDT | Special Weather Statement | MPX | Waseca | 35 min |
| Jun 12, 10:42 AM CDT | Special Weather Statement | MPX | Steele | 33 min |
| Jun 12, 11:11 AM CDT | Special Weather Statement | MPX | Martin | 49 min |
| Jun 12, 11:34 AM CDT | Special Weather Statement | MPX | Blue Earth | 56 min |
| Jun 12, 11:48 AM CDT | Special Weather Statement | MPX | Freeborn | 57 min |
| Jun 12, 11:57 AM CDT | Severe Thunderstorm Warning | MPX | Martin, Watonwan | 33 min |
| Jun 12, 12:29 PM CDT | Special Weather Statement | MPX | Blue Earth, Brown | 46 min |
| Jun 12, 12:31 PM CDT | Special Weather Statement | MPX | Faribault | 44 min |
| Jun 12, 12:42 PM CDT | Special Weather Statement | MPX | Blue Earth | 48 min |
| Jun 12, 1:09 PM CDT | Special Weather Statement | MPX | Freeborn | 51 min |
| Jun 12, 1:24 PM CDT | Severe Thunderstorm Warning | MPX | Rice, Steele, Waseca | 36 min |
| Jun 12, 1:34 PM CDT | Special Weather Statement | MPX | Le Sueur, Rice | 26 min |
| Jun 12, 1:51 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue, Rice | 39 min |
| Jun 12, 2:42 PM CDT | Special Weather Statement | MPX | Steele | 18 min |
| Jun 12, 3:00 PM CDT | Special Weather Statement | MPX | Faribault | 45 min |
| Jun 12, 3:14 PM CDT | Special Weather Statement | MPX | Freeborn | 46 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.