Alert archive / Wisconsin / Tornado Warnings in 2010
Tornado Warning 76, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 17, 2010, 8:51 PM CDT for Polk County, Saint Croix County, Wisconsin; Chisago County, Washington County, Minnesota. It was in force for 24 min. 3 reports 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, 8:51 PM CDT (01:51 UTC)
- Expired
- Jul 17, 2010, 9:15 PM CDT
- In force
- 24 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Chisago County, MN, Washington County, MN, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 01:51 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, 8:52 PM CDT | TSTM WND DMG | 4 Nnw Stillwater, MN | SOME 2-3 INCH DIAMETER BRANCHES BROKEN OFF |
| Jul 17, 8:52 PM CDT | TSTM WND GST 60 | 4 Nnw Stillwater, MN | |
| Jul 17, 8:58 PM CDT | TSTM WND DMG | 1 N Marine On St Croix, MN | LARGE TREE FELL ON CAMPER IN WILLIAM O BRIEN ST PARK |
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 |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.9 hours before the alert went out and 92 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.
756 WFUS53 KMPX 180151 TORMPX MNC025-163-WIC095-109-180215- /O.NEW.KMPX.TO.W.0076.100718T0151Z-100718T0215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 851 PM CDT SAT JUL 17 2010 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN CHISAGO COUNTY IN EAST CENTRAL MINNESOTA... NORTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA... SOUTHWESTERN POLK COUNTY IN NORTHWEST WISCONSIN... NORTHWESTERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN... * UNTIL 915 PM CDT * AT 847 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO 3 MILES NORTHWEST OF SCANDIA. RADAR SHOWED THE TORNADIC STORM MOVING EAST AT 40 MPH. * LOCATIONS IN THE WARNING INCLUDE... NEW RICHMOND... MARINE ON ST CROIX... OTISVILLE... SHAFER... OSCEOLA... SOMERSET... TAYLORS FALLS... DRESSER... ST CROIX FALLS... STAR PRAIRIE... WANDEROOS... DERONDA... 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. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4542 9240 4509 9238 4506 9288 4539 9294 TIME...MOT...LOC 0151Z 266DEG 36KT 4527 9280 $$ 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, 9:11 PM CDT | Tornado Warning | MPX | Barron, Dunn, Polk, Saint Croix | 49 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 |
| Jul 17, 7:13 PM CDT | Tornado Warning | MPX | Mille Lacs, Morrison | 62 min |
| Jul 17, 7:15 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Renville, Stearns | 60 min |
| Jul 17, 7:27 PM CDT | Tornado Warning | MPX | Benton, Mille Lacs, Sherburne, Stearns | 48 min |
| Jul 17, 7:33 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Sherburne, Stearns, Wright | 57 min |
| Jul 17, 7:34 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 41 min |
| Jul 17, 7:38 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti, Kanabec | 52 min |
| Jul 17, 8:00 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Hennepin, Ramsey, Sherburne, Washington and 1 more | 60 min |
| Jul 17, 8:10 PM CDT | Tornado Warning | MPX | Anoka, Hennepin, Ramsey, Washington | 35 min |
| Jul 17, 8:21 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Dakota, Hennepin, Ramsey, Scott, Washington | 54 min |
| Jul 17, 8:34 PM CDT | Tornado Warning | MPX | Anoka, Chisago, Ramsey, Washington | 26 min |
| Jul 17, 9:08 PM CDT | Areal Flood Advisory | MPX | Anoka, Dakota, Hennepin, Ramsey, Washington | 6 hr |
| Jul 17, 9:26 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Pope, Stearns | 51 min |
| Jul 17, 9:40 PM CDT | Special Weather Statement | MPX | Dakota | 50 min |
| Jul 17, 9:53 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 23 min |
| Jul 17, 10:11 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Martin, Watonwan | 64 min |
| Jul 17, 10:43 PM CDT | Special Weather Statement | MPX | Freeborn | 62 min |
Nearby
Tornado Warnings in Wisconsin, 2010Tornado 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.