Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 57, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2012, 9:24 PM CDT for Stevens County, Minnesota. It was in force for 41 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 5, 2012, 9:24 PM CDT (02:24 UTC)
- Expired
- May 5, 2012, 10:05 PM CDT
- In force
- 41 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Stevens County, MN
The radar
The Aberdeen radar (KABR), 175 km from the middle of the area, began a volume at 02:27 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 5, 9:45 PM CDT | HAIL 0.88 | Chokio, MN |
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 5, 8:18 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.4 hours before the alert went out and 190 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
- 657 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
686
WUUS53 KMPX 060224
SVRMPX
MNC149-060330-
/O.NEW.KMPX.SV.W.0057.120506T0224Z-120506T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
924 PM CDT SAT MAY 5 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 1030 PM CDT
* AT 921 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS
STORM WAS LOCATED 6 MILES WEST OF ARTICHOKE...OR ABOUT 10 MILES
NORTHEAST OF ORTONVILLE...AND MOVING NORTHEAST AT 35 MPH.
LOCATIONS IN THE WARNING INCLUDE...
MORRIS...
CHOKIO...
ALBERTA...
DONNELLY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
&&
LAT...LON 4571 9626 4577 9624 4577 9618 4564 9576
4541 9605 4540 9613 4541 9623 4542 9625
4557 9625 4560 9627
TIME...MOT...LOC 0225Z 212DEG 33KT 4541 9624
WIND...HAIL 60MPH 1.25IN
$$
JLT5 follow-up statements
878
WWUS53 KMPX 060234
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
934 PM CDT SAT MAY 5 2012
MNC149-060330-
/O.CON.KMPX.SV.W.0057.000000T0000Z-120506T0330Z/
STEVENS MN-
934 PM CDT SAT MAY 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS COUNTY
UNTIL 1030 PM CDT...
AT 932 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR ARTICHOKE...OR
16 MILES SOUTHWEST OF MORRIS...MOVING NORTHEAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
MORRIS...CHOKIO...ALBERTA AND DONNELLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
&&
LAT...LON 4571 9626 4577 9624 4577 9618 4564 9576
4541 9605 4540 9613 4541 9623 4542 9625
4557 9625 4560 9627
TIME...MOT...LOC 0234Z 212DEG 33KT 4548 9618
WIND...HAIL 60MPH 1.25IN
$$
JLT777
WWUS53 KMPX 060239
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
939 PM CDT SAT MAY 5 2012
MNC149-060330-
/O.CON.KMPX.SV.W.0057.000000T0000Z-120506T0330Z/
STEVENS MN-
939 PM CDT SAT MAY 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS COUNTY
UNTIL 1030 PM CDT...
AT 936 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES SOUTH OF
CHOKIO...OR 14 MILES SOUTHWEST OF MORRIS...MOVING NORTHEAST AT 40
MPH.
LOCATIONS IMPACTED INCLUDE...
CHOKIO...ALBERTA AND DONNELLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
&&
LAT...LON 4576 9624 4577 9624 4574 9608 4567 9584
4545 9604 4547 9624 4557 9625 4560 9627
TIME...MOT...LOC 0239Z 212DEG 33KT 4552 9614
WIND...HAIL 60MPH 1.25IN
$$022
WWUS53 KMPX 060247
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
947 PM CDT SAT MAY 5 2012
MNC149-060330-
/O.CON.KMPX.SV.W.0057.000000T0000Z-120506T0330Z/
STEVENS MN-
947 PM CDT SAT MAY 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
STEVENS COUNTY UNTIL 1030 PM CDT...
AT 943 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR ALBERTA...OR
10 MILES WEST OF MORRIS...MOVING NORTHEAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
DONNELLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4576 9624 4577 9624 4574 9608 4568 9586
4551 9600 4550 9624 4557 9625 4560 9627
TIME...MOT...LOC 0247Z 212DEG 33KT 4558 9608
WIND...HAIL 60MPH 1.25IN
$$
JLT221
WWUS53 KMPX 060257
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
957 PM CDT SAT MAY 5 2012
MNC149-060330-
/O.CON.KMPX.SV.W.0057.000000T0000Z-120506T0330Z/
STEVENS MN-
957 PM CDT SAT MAY 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
STEVENS COUNTY UNTIL 1030 PM CDT...
AT 955 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS
LOCATED NEAR DONNELLY...OR 7 MILES NORTHWEST OF MORRIS...MOVING
NORTHEAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
DONNELLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4560 9627 4576 9624 4577 9624 4574 9608
4568 9586 4555 9597
TIME...MOT...LOC 0257Z 212DEG 33KT 4566 9601
WIND...HAIL <50MPH 1.00IN
$$
JLT451
WWUS53 KMPX 060305
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1005 PM CDT SAT MAY 5 2012
MNC149-060320-
/O.CAN.KMPX.SV.W.0057.000000T0000Z-120506T0330Z/
STEVENS MN-
1005 PM CDT SAT MAY 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN STEVENS COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
LAT...LON 4560 9627 4576 9624 4577 9624 4574 9608
4568 9586 4555 9597
TIME...MOT...LOC 0305Z 212DEG 33KT 4572 9595
$$
JLTThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:58 PM CDT | Special Weather Statement | MPX | Anoka, Chisago, Isanti, Sherburne | 47 min |
| May 5, 8:35 PM CDT | River Flood Watch | MPX | Todd | 15 hr |
| May 5, 8:48 PM CDT | Special Weather Statement | MPX | Lac qui Parle | 27 min |
| May 5, 9:01 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 14 min |
| May 5, 9:27 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 63 min |
| May 5, 11:24 PM CDT | Special Weather Statement | MPX | Renville | 66 min |
| May 5, 11:52 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 42 min |
| May 6, 12:39 AM CDT | Special Weather Statement | MPX | Carver, McLeod | 66 min |
| May 6, 1:35 AM CDT | Special Weather Statement | MPX | Carver, Hennepin, Scott | 40 min |
| May 6, 1:44 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Dakota, Hennepin, Ramsey, Scott | 46 min |
| May 6, 2:14 AM CDT | Special Weather Statement | MPX | Dakota | 46 min |
| May 6, 2:24 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Washington | 36 min |
| May 6, 10:54 AM CDT | River Flood Warning | MPX | Redwood | 22 hr |
| May 6, 10:54 AM CDT | River Flood Warning | MPX | Brown | 33 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012
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.