Alert archive / Minnesota / Tornado Warnings in 2010
Tornado Warning 90, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 12, 2010, 6:18 PM CDT for Chippewa County, Lac qui Parle County, Swift County, Minnesota. It was in force for 42 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
- Aug 12, 2010, 6:18 PM CDT (23:18 UTC)
- Expired
- Aug 12, 2010, 7:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Chippewa County, MN, Lac qui Parle County, MN, Swift County, MN
The radar
The Minneapolis radar (KMPX), 181 km from the middle of the area, began a volume at 23:19 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 6:24 PM CDT | TORNADO | 3 W Dawson, 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 |
|---|---|---|---|
| Aug 12, 3:22 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 178 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
- 1077 J/kg
- Mixed-layer CIN
- -230 J/kg
- Mixed-layer LCL
- 1195 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
010 WFUS53 KMPX 122318 TORMPX MNC023-073-151-130000- /O.NEW.KMPX.TO.W.0090.100812T2318Z-100813T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 618 PM CDT THU AUG 12 2010 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... CENTRAL SWIFT COUNTY IN WEST CENTRAL MINNESOTA... EASTERN LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA... NORTHWESTERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 700 PM CDT * AT 614 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 4 MILES NORTHWEST OF DAWSON...OR ABOUT 11 MILES NORTH OF PROVIDENCE...AND MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE... WATSON... MILAN... BIG BEND CITY... DANVERS... CERRO GORDO... PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING FOR SOUTHWESTERN MINNESOTA. && LAT...LON 4536 9571 4508 9541 4486 9609 4500 9625 TIME...MOT...LOC 2318Z 229DEG 29KT 4499 9607 $$
1 follow-up statement
202 WWUS53 KMPX 122326 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 626 PM CDT THU AUG 12 2010 MNC023-073-151-130000- /O.CON.KMPX.TO.W.0090.000000T0000Z-100813T0000Z/ SWIFT MN-LAC QUI PARLE MN-CHIPPEWA MN- 626 PM CDT THU AUG 12 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN CHIPPEWA... EASTERN LAC QUI PARLE AND CENTRAL SWIFT COUNTIES IN WEST CENTRAL MINNESOTA UNTIL 700 PM CDT... AT 623 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO WEST OF DAWSON. THI TORNADO WAS LOCATED 8 MILES EAST OF MADISON...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... WATSON...MILAN...BIG BEND CITY AND DANVERS. LAT...LON 4536 9571 4508 9541 4486 9609 4500 9625 TIME...MOT...LOC 2326Z 229DEG 29KT 4503 9600 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 6:34 AM CDT | Special Weather Statement | MPX | Todd | 41 min |
| Aug 12, 6:40 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Todd | 26 min |
| Aug 12, 10:03 AM CDT | Heat Advisory | MPX | Anoka, Blue Earth, Brown, Carver, Dakota, Faribault and 16 more | 9 hr |
| Aug 12, 4:37 PM CDT | Flash Flood Watch | MPX | Anoka, Carver, Chisago, Dakota, Freeborn, Goodhue and 9 more | 29 hr |
| Aug 12, 5:28 PM CDT | Tornado Warning | MPX | Lac qui Parle, Swift | 62 min |
| Aug 12, 5:34 PM CDT | Special Weather Statement | MPX | Redwood | 56 min |
| Aug 12, 5:40 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Renville, Yellow Medicine | 65 min |
| Aug 12, 6:19 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 56 min |
| Aug 12, 6:21 PM CDT | Tornado Warning | MPX | Stevens | 24 min |
| Aug 12, 6:28 PM CDT | Tornado Warning | MPX | Chippewa, Lac qui Parle, Swift | 47 min |
| Aug 12, 6:35 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Chippewa, Kandiyohi, McLeod, Meeker, Redwood and 4 more | 55 min |
| Aug 12, 6:40 PM CDT | Areal Flood Advisory | MPX | Lac qui Parle, Swift | 6 hr |
| Aug 12, 6:47 PM CDT | Tornado Warning | MPX | Stevens | 28 min |
| Aug 12, 6:52 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, McLeod, Nicollet, Sibley | 53 min |
| Aug 12, 6:58 PM CDT | Tornado Warning | MPX | Douglas, Pope | 47 min |
Nearby
Tornado Warnings in Minnesota, 2010Every tornado warning in 2010Tornadoes in 2010
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.