Alert archive / Minnesota / Tornado Warnings in 2009
Tornado Warning 18, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jun 21, 2009, 9:20 PM CDT for Freeborn County, Minnesota. It was in force for 40 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
- Jun 21, 2009, 9:20 PM CDT (02:20 UTC)
- Expired
- Jun 21, 2009, 10:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 02:20 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 |
|---|---|---|---|
| Jun 21, 9:24 PM CDT | TORNADO | 1 N Twin Lakes, MN | A SECOND BRIEF TOUCHDOWN BEFORE WRAPPING BACK INTO RAIN SWEPT CLOUDS. |
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 |
|---|---|---|---|
| Jun 21, 3:17 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.3 hours before the alert went out and 142 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
- 278 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 487 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KMPX 220220 TORMPX MNC047-220300- /O.NEW.KMPX.TO.W.0018.090622T0220Z-090622T0300Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 920 PM CDT SUN JUN 21 2009 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 1000 PM CDT * AT 920 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR TWIN LAKES...OR ABOUT OVER TWIN LAKES. RADAR SHOWED THE TORNADIC STORM MOVING NORTHEAST AT 20 MPH. * LOCATIONS IN THE WARNING INCLUDE... GLENVILLE... 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. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING FOR SOUTH CENTRAL MINNESOTA. && LAT...LON 4363 9345 4364 9313 4350 9331 4350 9352 TIME...MOT...LOC 0220Z 218DEG 18KT 4356 9341 $$ JLT
4 follow-up statements
000 WWUS53 KMPX 220233 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 933 PM CDT SUN JUN 21 2009 MNC047-220300- /O.CON.KMPX.TO.W.0018.000000T0000Z-090622T0300Z/ FREEBORN MN- 933 PM CDT SUN JUN 21 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTH CENTRAL FREEBORN COUNTY... AT 932 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 3 MILES NORTHWEST OF GLENVILLE...AND MOVING NORTHEAST AT 15 MPH. AROUND 920 PM...A TRAINED SPOTTER REPORTED A BRIEF TORNADO TOUCHDOWN NEAR EMMONS ALONG THE MINNESOTA...IOWA BORDER. OTHER LOCATIONS IN THE WARNING INCLUDE...RURAL CENTRAL FREEBORN COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OR PRODUCING TORNADOES. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING FOR SOUTH CENTRAL MINNESOTA. && LAT...LON 4363 9345 4364 9313 4350 9331 4350 9352 TIME...MOT...LOC 0232Z 227DEG 13KT 4359 9333 $$ JLT
000 WWUS53 KMPX 220242 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 942 PM CDT SUN JUN 21 2009 MNC047-220300- /O.CON.KMPX.TO.W.0018.000000T0000Z-090622T0300Z/ FREEBORN MN- 942 PM CDT SUN JUN 21 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTH CENTRAL FREEBORN COUNTY... AT 924 PM CDT...A TRAINED SPOTTER REPORTED A BRIEF TORNADO TOUCHDOWN ONE MILE NORTH OF TWIN LAKES. AT 941 PM CDT... THE TORNADIC SEVERE THUNDERSTORM WAS LOCATED 3 MILES NORTHWEST OF GLENVILLE...AND MOVING NORTHEAST AT 15 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OR PRODUCING TORNADOES. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTH CENTRAL MINNESOTA. && LAT...LON 4363 9345 4364 9313 4350 9331 4350 9352 TIME...MOT...LOC 0242Z 227DEG 13KT 4361 9331 $$ JLT
000 WWUS53 KMPX 220248 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 948 PM CDT SUN JUN 21 2009 MNC047-220300- /O.CON.KMPX.TO.W.0018.000000T0000Z-090622T0300Z/ FREEBORN MN- 948 PM CDT SUN JUN 21 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTH CENTRAL FREEBORN COUNTY... AT 945 PM...LOCAL LAW ENFORCEMENT OFFICERS REPORTED A ROTATING WALL CLOUD AND POSSIBLE FUNNEL CLOUDS SOUTH OF TWIN LAKES. THIS IS ANOTHER SEVERE THUNDERSTORM THAT DEVELOPED SOUTH OF THE STORM THAT PRODUCED A TORNADO EARLIER NEAR TWIN LAKES. ANOTHER SEVERE THUNDERSTORM WAS LOCATED NEAR GLENVILLE AND MOVING NORTHEAST AT 20 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE...RURAL CENTRAL FREEBORN COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OR PRODUCING TORNADOES. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTH CENTRAL MINNESOTA. && LAT...LON 4363 9345 4364 9313 4350 9331 4350 9352 TIME...MOT...LOC 0246Z 234DEG 14KT 4359 9330 $$ JLT
000 WWUS53 KMPX 220253 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 953 PM CDT SUN JUN 21 2009 MNC047-220300- /O.CON.KMPX.TO.W.0018.000000T0000Z-090622T0300Z/ FREEBORN MN- 953 PM CDT SUN JUN 21 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTH CENTRAL FREEBORN COUNTY... AT 952 PM CDT... LOCAL LAW ENFORCEMENT OFFICERS CONTINUED TO REPORT A LARGE WALL CLOUD WEST OF INTERSTATE 35 NEAR TWIN LAKES. SEVERAL REPORTS OF FUNNEL CLOUDS HAVE BEEN REPORTED WITH THIS WALL CLOUD SINCE 945 PM. THIS TORNADIC STORM WAS MOVING NORTHEAST AT 10 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE...GLENVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTH CENTRAL MINNESOTA. && LAT...LON 4363 9345 4364 9313 4350 9331 4350 9352 TIME...MOT...LOC 0252Z 234DEG 9KT 4355 9336 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:15 PM CDT | Special Weather Statement | MPX | Waseca | 45 min |
| Jun 21, 7:25 PM CDT | Tornado Warning | MPX | Blue Earth, Faribault, Freeborn, Waseca | 65 min |
| Jun 21, 7:27 PM CDT | Tornado Warning | MPX | Blue Earth, Waseca | 33 min |
| Jun 21, 8:08 PM CDT | Tornado Warning | MPX | Faribault, Freeborn | 67 min |
| Jun 21, 8:19 PM CDT | Areal Flood Advisory | MPX | Faribault | 3 hr |
| Jun 21, 8:28 PM CDT | Tornado Warning | MPX | Faribault, Freeborn | 32 min |
| Jun 21, 9:04 PM CDT | Areal Flood Advisory | MPX | Freeborn | 4 hr |
| Jun 21, 9:07 PM CDT | Tornado Warning | MPX | Freeborn | 53 min |
| Jun 21, 9:59 PM CDT | Tornado Warning | MPX | Freeborn | 34 min |
| Jun 21, 10:44 PM CDT | Special Weather Statement | MPX | Freeborn | 31 min |
| Jun 22, 3:44 PM CDT | Heat Advisory | MPX | Hennepin, Ramsey | 12 hr |
Nearby
Tornado Warnings in Minnesota, 2009Every tornado warning in 2009Tornadoes in 2009
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.