Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 199, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2017, 1:15 AM CDT for 5 counties in Minnesota. It was in force for 30 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, 1:15 AM CDT (06:15 UTC)
- Expired
- Sep 20, 2017, 1:45 AM CDT
- In force
- 30 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Brown County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 112 km from the middle of the area, began a volume at 06:19 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, 6.3 hours before the alert went out and 109 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.
743
WUUS53 KMPX 200615
SVRMPX
MNC015-103-127-129-143-200645-
/O.NEW.KMPX.SV.W.0199.170920T0615Z-170920T0645Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
115 AM CDT WED SEP 20 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Redwood County in southwestern Minnesota...
Western Sibley County in central Minnesota...
Northern Brown County in south central Minnesota...
Renville County in central Minnesota...
Northwestern Nicollet County in south central Minnesota...
* Until 145 AM CDT
* At 115 AM CDT, severe thunderstorms were located along a line
extending from Bird Island to Franklin to near Springfield, moving
east at 50 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near,
Fairfax around 125 AM CDT.
Sleepy Eye and Hector around 130 AM CDT.
Gibbon and Buffalo Lake around 135 AM CDT.
Other locations impacted by these severe thunderstorms include
Bechyn, Essig, Clements, Danube, St George, Lakeside, Cobden and
Evan.
This includes Jackpot Junction Casino.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4427 9514 4446 9507 4480 9514 4486 9450
4436 9450 4429 9465
TIME...MOT...LOC 0615Z 259DEG 44KT 4476 9494 4453 9490 4429 9495
HAIL...0.88IN
WIND...60MPH
$$1 follow-up statement
015
WWUS53 KMPX 200631
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
131 AM CDT WED SEP 20 2017
MNC127-200641-
/O.CAN.KMPX.SV.W.0199.000000T0000Z-170920T0645Z/
Redwood MN-
131 AM CDT WED SEP 20 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN REDWOOD COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 500 AM CDT for
south central, central and southwestern Minnesota.
LAT...LON 4430 9486 4450 9487 4452 9488 4481 9498
4486 9450 4436 9450 4429 9465
TIME...MOT...LOC 0631Z 259DEG 44KT 4479 9470 4456 9466 4432 9471
$$
MNC015-103-129-143-200645-
/O.CON.KMPX.SV.W.0199.000000T0000Z-170920T0645Z/
Sibley MN-Brown MN-Renville MN-Nicollet MN-
131 AM CDT WED SEP 20 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CDT
FOR WESTERN SIBLEY...NORTHEASTERN BROWN...EASTERN RENVILLE AND
NORTHWESTERN NICOLLET COUNTIES...
At 131 AM CDT, severe thunderstorms were located along a line
extending from near Hector to near Fairfax to Sleepy Eye, moving east
at 50 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Buffalo Lake around 135 AM CDT.
Gibbon around 140 AM CDT.
Other locations impacted by these severe thunderstorms include Essig,
St George, Lakeside and Evan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4430 9486 4450 9487 4452 9488 4481 9498
4486 9450 4436 9450 4429 9465
TIME...MOT...LOC 0631Z 259DEG 44KT 4479 9470 4456 9466 4432 9471
HAIL...0.88IN
WIND...60MPH
$$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, 1:37 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Sherburne, Stearns, Wright | 38 min |
| Sep 20, 1:41 AM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 34 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.