Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 26, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 16, 2017, 4:06 PM CDT for Pierce County, Wisconsin; Dakota County, Washington County, Minnesota. It was in force for 39 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
- May 16, 2017, 4:06 PM CDT (21:06 UTC)
- Expired
- May 16, 2017, 4:45 PM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
Counties Dakota County, MN, Washington County, MN, Pierce County, WI
The radar
The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 21:08 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 |
|---|---|---|---|
| May 16, 4:09 PM CDT | HAIL 1.75 | 2 Ssw Inver Grove Heigh, MN | DIMES TO GOLF BALLS. |
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 |
|---|---|---|---|
| May 16, 4:02 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.1 hours before the alert went out and 56 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
- 241 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 1186 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.3
The text
As transmitted.
063
WUUS53 KMPX 162106
SVRMPX
MNC037-163-WIC093-162145-
/O.NEW.KMPX.SV.W.0026.170516T2106Z-170516T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
406 PM CDT TUE MAY 16 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northeastern Dakota County in east central Minnesota...
Southern Washington County in east central Minnesota...
Northwestern Pierce County in west central Wisconsin...
* Until 445 PM CDT
* At 406 PM CDT, a severe thunderstorm was located over Inver Grove
Heights, or 10 miles south of St. Paul, moving northeast at 30 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* This severe thunderstorm will be near,
South St. Paul and St. Paul Park around 415 PM CDT.
Cottage Grove around 420 PM CDT.
Woodbury around 430 PM CDT.
Afton around 435 PM CDT.
Other locations impacted by this severe thunderstorm include
Kinnickinnic State Park, Newport, Afton State Park, Lake St Croix
Beach, Lakeland, Grey Cloud Township, St Paul Park, St Marys Point
and Lakeland Shores.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.
LAT...LON 4479 9316 4499 9280 4493 9275 4490 9278
4487 9277 4486 9270 4479 9264 4475 9297
4475 9313
TIME...MOT...LOC 2106Z 239DEG 25KT 4480 9306
HAIL...1.50IN
WIND...<50MPH
$$
ETA2 follow-up statements
657
WWUS53 KMPX 162117
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
417 PM CDT TUE MAY 16 2017
MNC037-163-WIC093-162145-
/O.CON.KMPX.SV.W.0026.000000T0000Z-170516T2145Z/
Dakota MN-Washington MN-Pierce WI-
417 PM CDT TUE MAY 16 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR NORTHEASTERN DAKOTA...SOUTHERN WASHINGTON AND NORTHWESTERN PIERCE
COUNTIES...
At 416 PM CDT, a severe thunderstorm was located over St. Paul Park,
or 9 miles southeast of St. Paul, moving northeast at 30 mph. Golf
ball sized hail was reported in Inner Grove Heights at 410 PM CDT.
HAZARD...Golf ball size hail.
SOURCE...Spotter reported.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Eagan, Woodbury, Cottage Grove, Inver Grove Heights, Rosemount, South
St. Paul, St. Paul Park, Afton, Newport, Lakeland, Lakeland Shores
and Afton State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.
LAT...LON 4479 9316 4499 9280 4493 9275 4490 9278
4487 9277 4486 9270 4479 9264 4475 9297
4475 9313
TIME...MOT...LOC 2116Z 239DEG 25KT 4484 9297
HAIL...1.75IN
WIND...<50MPH
$$
ETA638
WWUS53 KMPX 162131
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
431 PM CDT TUE MAY 16 2017
MNC037-WIC093-162140-
/O.CAN.KMPX.SV.W.0026.000000T0000Z-170516T2145Z/
Dakota MN-Pierce WI-
431 PM CDT TUE MAY 16 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAKOTA AND
NORTHWESTERN PIERCE COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.
A severe thunderstorm watch remains in effect until 1000 PM CDT for
east central Minnesota.
LAT...LON 4485 9301 4488 9300 4499 9280 4493 9275
4490 9278 4487 9277
TIME...MOT...LOC 2130Z 239DEG 25KT 4489 9285
$$
MNC163-162145-
/O.CON.KMPX.SV.W.0026.000000T0000Z-170516T2145Z/
Washington MN-
431 PM CDT TUE MAY 16 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHERN WASHINGTON COUNTY...
At 430 PM CDT, a severe thunderstorm was located over Afton, or 11
miles west of River Falls, moving northeast at 30 mph.
HAZARD...Golf ball size hail.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Woodbury, Cottage Grove, St. Paul Park, Afton, Newport, Lakeland,
Lakeland Shores, Lake St Croix Beach, St Marys Point and Afton State
Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.
LAT...LON 4485 9301 4488 9300 4499 9280 4493 9275
4490 9278 4487 9277
TIME...MOT...LOC 2130Z 239DEG 25KT 4489 9285
HAIL...1.75IN
WIND...<50MPH
$$
ETAThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 2:54 PM CDT | Flash Flood Watch | MPX | Chippewa, Dunn, Eau Claire, Pepin, Pierce, Rusk | 12 hr |
| May 16, 4:01 PM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 44 min |
| May 16, 4:38 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 52 min |
| May 16, 4:39 PM CDT | Tornado Warning | MPX | Barron, Polk | 51 min |
| May 16, 4:55 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Rusk | 65 min |
| May 16, 5:05 PM CDT | Tornado Warning | MPX | Barron | 55 min |
| May 16, 5:28 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Dunn, Saint Croix | 47 min |
| May 16, 5:37 PM CDT | Tornado Warning | MPX | Rusk | 38 min |
| May 16, 6:01 PM CDT | Tornado Warning | MPX | Rusk | 59 min |
| May 16, 6:10 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Chippewa, Rusk | 65 min |
| May 16, 6:14 PM CDT | Tornado Warning | MPX | Chippewa | 35 min |
| May 16, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 44 min |
| May 16, 6:58 PM CDT | Severe Thunderstorm Warning | MPX | Pepin, Pierce | 47 min |
| May 15, 8:53 PM CDT | Special Weather Statement | MPX | Faribault | 37 min |
| May 15, 9:32 PM CDT | Severe Thunderstorm Warning | MPX | Waseca | 43 min |
| May 15, 9:55 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Waseca | 35 min |
| May 15, 10:04 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 56 min |
| May 15, 10:25 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 26 min |
| May 15, 11:11 PM CDT | Special Weather Statement | MPX | Waseca | 34 min |
| May 15, 11:39 PM CDT | Special Weather Statement | MPX | Rice | 36 min |
| May 16, 1:18 AM CDT | Special Weather Statement | MPX | Rice | 42 min |
| May 16, 3:05 AM CDT | Special Weather Statement | MPX | Lac qui Parle, Yellow Medicine | 55 min |
| May 16, 3:47 AM CDT | Special Weather Statement | MPX | Chippewa, Kandiyohi, Stevens, Swift | 28 min |
| May 16, 4:20 AM CDT | Special Weather Statement | MPX | Kandiyohi, Stearns | 55 min |
| May 16, 5:06 AM CDT | Special Weather Statement | MPX | Brown, Martin, Redwood, Watonwan | 84 min |
| May 16, 3:04 PM CDT | Special Weather Statement | MPX | Rice | 26 min |
| May 16, 3:27 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice | 48 min |
| May 16, 5:32 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice | 43 min |
| May 16, 5:42 PM CDT | Severe Thunderstorm Warning | MPX | Rice | 33 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2017Severe Thunderstorm Warnings in Wisconsin, 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.