Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 201, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2017, 1:41 AM CDT for McLeod County, Renville County, Sibley County, Minnesota. It was in force for 34 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
- Sep 20, 2017, 1:41 AM CDT (06:41 UTC)
- Expired
- Sep 20, 2017, 2:15 AM CDT
- In force
- 34 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties McLeod County, MN, Renville County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 63 km from the middle of the area, began a volume at 06:39 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 19, 10:36 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 6.7 hours before the alert went out and 60 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
- 246 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 274 m²/s²
- 0-3 km storm-relative helicity
- 454 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.2
The text
As transmitted.
723
WUUS53 KMPX 200641
SVRMPX
MNC085-129-143-200715-
/O.NEW.KMPX.SV.W.0201.170920T0641Z-170920T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
141 AM CDT WED SEP 20 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Sibley County in central Minnesota...
McLeod County in central Minnesota...
East central Renville County in central Minnesota...
* Until 215 AM CDT
* At 140 AM CDT, severe thunderstorms were located along a line
extending from Cedar Mills to near Stewart to St George, moving
east at 50 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,
Hutchinson around 145 AM CDT.
Brownton around 150 AM CDT.
Glencoe around 200 AM CDT.
Winsted around 205 AM CDT.
Lester Prairie around 210 AM CDT.
Other locations impacted by these severe thunderstorms include
Sumter, Biscay, Lakeside, Fernando, Plato, New Auburn and Lake
Marion Regional Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4455 9462 4479 9463 4490 9450 4496 9450
4498 9403 4497 9401 4472 9401 4459 9428
TIME...MOT...LOC 0640Z 251DEG 44KT 4496 9449 4469 9447 4445 9458
HAIL...0.75IN
WIND...60MPH
$$2 follow-up statements
550
WWUS53 KMPX 200702
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
202 AM CDT WED SEP 20 2017
MNC129-200712-
/O.CAN.KMPX.SV.W.0201.000000T0000Z-170920T0715Z/
Renville MN-
202 AM CDT WED SEP 20 2017
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL RENVILLE COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 500 AM CDT for
central Minnesota. A severe thunderstorm watch also remains in effect
until 500 AM CDT for central and east central Minnesota.
LAT...LON 4457 9445 4490 9450 4496 9450 4498 9403
4497 9401 4472 9401 4459 9428
TIME...MOT...LOC 0702Z 251DEG 44KT 4504 9416 4477 9414 4453 9425
$$
MNC085-143-200715-
/O.CON.KMPX.SV.W.0201.000000T0000Z-170920T0715Z/
Sibley MN-McLeod MN-
202 AM CDT WED SEP 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR NORTHWESTERN SIBLEY AND MCLEOD COUNTIES...
At 202 AM CDT, severe thunderstorms were located along a line
extending from near Cokato to Glencoe to near Gaylord, moving east at
50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Winsted around 205 AM CDT.
Lester Prairie around 210 AM CDT.
Other locations impacted by these severe thunderstorms include
Sumter, Biscay, Fernando, Plato, New Auburn and Lake Marion Regional
Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4457 9445 4490 9450 4496 9450 4498 9403
4497 9401 4472 9401 4459 9428
TIME...MOT...LOC 0702Z 251DEG 44KT 4504 9416 4477 9414 4453 9425
HAIL...0.75IN
WIND...60MPH
$$668
WWUS53 KMPX 200714 RRA
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
214 AM CDT WED SEP 20 2017
MNC085-143-200724-
/O.EXP.KMPX.SV.W.0201.000000T0000Z-170920T0715Z/
Sibley MN-McLeod MN-
214 AM CDT WED SEP 20 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SIBLEY AND MCLEOD
COUNTIES WILL EXPIRE AT 215 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire.
A severe thunderstorm watch remains in effect until 500 AM CDT for
central Minnesota. A severe thunderstorm watch also remains in effect
until 500 AM CDT for central and east central Minnesota.
LAT...LON 4457 9445 4490 9450 4496 9450 4498 9403
4497 9401 4472 9401 4459 9428
TIME...MOT...LOC 0714Z 251DEG 44KT 4508 9398 4481 9396 4457 9407
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 10:55 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 50 min |
| Sep 19, 11:24 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 36 min |
| Sep 19, 11:42 PM CDT | Special Weather Statement | MPX | Lac qui Parle, Yellow Medicine | 48 min |
| Sep 19, 11:50 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stevens | 55 min |
| Sep 20, 12:03 AM CDT | Special Weather Statement | MPX | Swift | 57 min |
| Sep 20, 12:06 AM CDT | Special Weather Statement | MPX | Meeker | 24 min |
| Sep 20, 12:16 AM CDT | Special Weather Statement | MPX | Chippewa, Yellow Medicine | 44 min |
| Sep 20, 12:24 AM CDT | Severe Thunderstorm Warning | MPX | Swift | 21 min |
| Sep 20, 12:42 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Pope, Stearns, Todd | 33 min |
| Sep 20, 12:45 AM CDT | Special Weather Statement | MPX | Benton, Morrison | 45 min |
| Sep 20, 12:51 AM CDT | Special Weather Statement | MPX | Kandiyohi, Meeker, Renville | 39 min |
| Sep 20, 12:55 AM CDT | Special Weather Statement | MPX | Brown, Redwood | 35 min |
| Sep 20, 1:02 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Renville | 43 min |
| Sep 20, 1:11 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Sherburne, Stearns | 49 min |
| Sep 20, 1:15 AM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet, Redwood, Renville, Sibley | 30 min |
| Sep 20, 1:37 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Sherburne, Stearns, Wright | 38 min |
| Sep 20, 1:49 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Kanabec, Mille Lacs, Morrison | 56 min |
| Sep 20, 2:00 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Isanti, Mille Lacs, Sherburne | 45 min |
| Sep 20, 2:12 AM CDT | Special Weather Statement | MPX | Anoka, Hennepin, Wright | 48 min |
| Sep 20, 2:36 AM CDT | Special Weather Statement | MPX | Hennepin, Ramsey, Washington | 69 min |
| Sep 20, 2:57 AM CDT | Special Weather Statement | MPX | Chisago | 33 min |
| Sep 20, 3:04 AM CDT | Severe Thunderstorm Warning | MPX | Chisago | 26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.