Alert archive / Minnesota / Tornado Warnings in 2009
Tornado Warning 54, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 19, 2009, 7:41 PM CDT for Blue Earth County, Minnesota. It was in force for 34 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 19, 2009, 7:41 PM CDT (00:41 UTC)
- Expired
- Aug 19, 2009, 8:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
County Blue Earth County, MN
The radar
The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 00:43 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 19, 7:59 PM CDT | FUNNEL CLOUD | 2 N Good Thunder, MN | SPOTTER LOOKING NORTH FROM COUNTY ROAD 66 ESTIMATING FUNNEL CLOUD IS 2 MILES NORTH OF GOOD THUNDER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 94 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
- 53 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KMPX 200041 TORMPX MNC013-200115- /O.NEW.KMPX.TO.W.0054.090820T0041Z-090820T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 741 PM CDT WED AUG 19 2009 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... CENTRAL BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 815 PM CDT * AT 739 PM CDT...THE PUBLIC REPORTED A TORNADO 4 MILES NORTHWEST OF GOOD THUNDER...OR APPROXIMATELY 2 MILES SOUTHEAST OF LAKE CRYSTAL. RADAR SHOWED THE TORNADIC STORM MOVING EAST AT 20 MPH. THERE IS ANOTHER STORM CAPABLE OF PRODUCING LARGE HAIL AND POSSIBLY A BRIEF TORNADO IN FAR WEST CENTRAL BLUE EARTH COUNTY...ABOUT 5 MILES WEST OF LAKE CRYSTAL...MOVING EAST AS WELL. * LOCATIONS IN THE WARNING INCLUDE... SKYLINE... LAKE CRYSTAL... 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. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. && LAT...LON 4415 9400 4402 9398 4402 9437 4416 9437 TIME...MOT...LOC 0039Z 270DEG 19KT 4407 9420 $$
2 follow-up statements
000 WWUS53 KMPX 200102 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 802 PM CDT WED AUG 19 2009 MNC013-200115- /O.CON.KMPX.TO.W.0054.000000T0000Z-090820T0115Z/ BLUE EARTH MN- 802 PM CDT WED AUG 19 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CENTRAL BLUE EARTH COUNTY... AT 759 PM CDT...A TRAINED SPOTTER REPROTED A FUNNEL CLOUD 2 MILES NORTH OF GOOD THUNDER. AT 758 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 8 MILES EAST OF LAKE CRYSTAL...OR ABOUT 4 MILES NORTH OF GOOD THUNDER...AND MOVING EAST AT 20 MPH. LOCATIONS IN THE WARNING INCLUDE... GOOD THUNDER. RAPIDAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. && LAT...LON 4411 9400 4402 9398 4402 9437 4410 9434 TIME...MOT...LOC 0100Z 271DEG 18KT 4407 9406 $$
000 WWUS53 KMPX 200115 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 815 PM CDT WED AUG 19 2009 MNC013-200126- /O.EXP.KMPX.TO.W.0054.000000T0000Z-090820T0115Z/ BLUE EARTH MN- 815 PM CDT WED AUG 19 2009 ...THE TORNADO WARNING FOR CENTRAL BLUE EARTH COUNTY EXPIRED AT 815 PM CDT... TORNADIC SEVERE STORMS HAVE ENDED OR MOVED OUT OF COUNTY. HOWEVER... MORE THUNDERSTORMS WERE DEVELOPING IN THE AREA...REMAIN ALERT FOR ADDITIONAL WARNINGS. LAT...LON 4411 9400 4402 9398 4402 9437 4410 9434 TIME...MOT...LOC 0102Z 271DEG 18KT 4407 9404 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:38 PM CDT | Special Weather Statement | MPX | Brown, Nicollet, Watonwan | 67 min |
| Aug 20, 9:01 AM CDT | Areal Flood Advisory | MPX | Benton, Chisago, Isanti, Kanabec, Mille Lacs, Morrison | 6 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.