Alert archive / Wisconsin / Tornado Warnings in 2010
Tornado Warning 77, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 17, 2010, 9:11 PM CDT for 4 counties in Wisconsin. It was in force for 49 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
- Jul 17, 2010, 9:11 PM CDT (02:11 UTC)
- Expired
- Jul 17, 2010, 10:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Barron County, WI, Dunn County, WI, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 126 km from the middle of the area, began a volume at 02:14 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 |
|---|---|---|---|
| Jul 17, 9:28 PM CDT | TSTM WND GST 63 | New Richmond, WI |
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 |
|---|---|---|---|
| Jul 17, 12:28 PM CDT | Tornado Watch | SPC | 11 hr |
| Jul 17, 8:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 128 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
- 1779 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 268 m²/s²
- 0-3 km storm-relative helicity
- 618 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
769 WFUS53 KMPX 180211 TORMPX WIC005-033-095-109-180300- /O.NEW.KMPX.TO.W.0077.100718T0211Z-100718T0300Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 911 PM CDT SAT JUL 17 2010 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN POLK COUNTY IN NORTHWEST WISCONSIN... SOUTHWESTERN BARRON COUNTY IN NORTHWEST WISCONSIN... NORTHERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN... NORTHERN DUNN COUNTY IN WEST CENTRAL WISCONSIN... * UNTIL 1000 PM CDT * AT 910 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 2 MILES SOUTHEAST OF WANDEROOS...AND MOVING EAST AT 55 MPH. * LOCATIONS IN THE WARNING INCLUDE... AMERY... RICE LAKE... DERONDA... DEER PARK... CYLON... RANGE... CLEAR LAKE... FOREST... TURTLE LAKE... CONNORSVILLE... PRAIRIE FARM... RIDGELAND... 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 1100 PM CDT SATURDAY EVENING FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4550 9173 4511 9170 4506 9277 4541 9261 TIME...MOT...LOC 0211Z 269DEG 48KT 4529 9245 $$ JLT
1 follow-up statement
571 WWUS53 KMPX 180229 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 929 PM CDT SAT JUL 17 2010 WIC005-033-095-109-180300- /O.CON.KMPX.TO.W.0077.000000T0000Z-100718T0300Z/ POLK WI-BARRON WI-ST. CROIX WI-DUNN WI- 929 PM CDT SAT JUL 17 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN DUNN...NORTHERN ST. CROIX...SOUTHWESTERN BARRON AND SOUTHERN POLK COUNTIES UNTIL 1000 PM CDT... AT 928 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CLEAR LAKE...OR 7 MILES SOUTHEAST OF AMERY...MOVING EAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... RICE LAKE...TURTLE LAKE...CONNORSVILLE...PRAIRIE FARM... RIDGELAND...HILLSDALE...BARRON...CAMERON...JOEL...CLAYTON...ALMENA AND DALLAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW. && LAT...LON 4550 9173 4511 9170 4506 9277 4541 9261 TIME...MOT...LOC 0229Z 267DEG 35KT 4523 9224 $$ JLT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:44 PM CDT | Severe Thunderstorm Warning | MPX | Pierce, Polk, Saint Croix | 61 min |
| Jul 17, 8:51 PM CDT | Tornado Warning | MPX | Polk, Saint Croix | 24 min |
| Jul 17, 9:20 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Dunn | 55 min |
| Jul 17, 9:47 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire, Rusk | 58 min |
| Jul 18, 2:11 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 64 min |
| Jul 18, 3:15 AM CDT | Special Weather Statement | MPX | Barron | 45 min |
Nearby
Tornado Warnings in Wisconsin, 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.