Alert archive / Minnesota / Tornado Warnings in 2010
Tornado Warning 75, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 17, 2010, 8:34 PM CDT for 4 counties in Minnesota. It was in force for 26 min. 11 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, 8:34 PM CDT (01:34 UTC)
- Expired
- Jul 17, 2010, 9:00 PM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Anoka County, MN, Chisago County, MN, Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 64 km from the middle of the area, began a volume at 01:38 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, 8:36 PM CDT | FUNNEL CLOUD | Hugo, MN | ROTATING WALL CLOUD ON I 35 |
| Jul 17, 8:45 PM CDT | TSTM WND DMG | 1 N White Bear Lake, MN | SEVERAL 6 TO 12 INCH DIAMETER TREES DOWN ALONG HWY 61 AND CITY WITHOUT POWER. TIME ESTIMATED |
| Jul 17, 8:45 PM CDT | TSTM WND DMG | Andover, MN | MULTIPLE LARGE TREES DOWN |
| Jul 17, 8:48 PM CDT | TSTM WND DMG | 5 N Roseville, MN | 8 INCH TREES DOWN |
| Jul 17, 8:48 PM CDT | TSTM WND DMG | Blaine, MN | 20 TO 24 INCH TREE DOWN AT 242 AND HWY 65 |
| 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 DMG | Blaine, MN | 5 INCH TREE LIMBS DOWN |
| Jul 17, 8:52 PM CDT | TSTM WND GST 60 | 4 Nnw Stillwater, MN | |
| Jul 17, 8:57 PM CDT | TSTM WND DMG | Lino Lakes, MN | 6 INCH DIAMETER BRANCHES DOWN |
| Jul 17, 9:03 PM CDT | TSTM WND DMG | Mounds View, MN | 10 INCH TREES DOWN |
| Jul 17, 9:04 PM CDT | TSTM WND DMG | Andover, MN | 12-16 INCH MAPLE TREES SNAPPED |
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, 1.6 hours before the alert went out and 65 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.
564 WFUS53 KMPX 180134 TORMPX MNC003-025-123-163-180200- /O.NEW.KMPX.TO.W.0075.100718T0134Z-100718T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 834 PM CDT SAT JUL 17 2010 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL CHISAGO COUNTY IN EAST CENTRAL MINNESOTA... ANOKA COUNTY IN EAST CENTRAL MINNESOTA... NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA... NORTHERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 900 PM CDT * AT 828 PM CDT...THE PUBLIC REPORTED A TORNADO 2 MILES NORTH OF BLAINE. RADAR SHOWED THE TORNADIC STORM MOVING EAST AT 55 MPH. * LOCATIONS IN THE WARNING INCLUDE... CENTERVILLE... WYOMING... FOREST LAKE... HUGO... CHISAGO CITY... SCANDIA... 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 900 PM CDT SATURDAY EVENING FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4538 9277 4506 9280 4508 9322 4537 9341 TIME...MOT...LOC 0134Z 271DEG 49KT 4520 9309 $$ JLT
1 follow-up statement
831 WWUS53 KMPX 180145 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 845 PM CDT SAT JUL 17 2010 MNC003-025-123-163-180200- /O.CON.KMPX.TO.W.0075.000000T0000Z-100718T0200Z/ CHISAGO MN-ANOKA MN-WASHINGTON MN-RAMSEY MN- 845 PM CDT SAT JUL 17 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN RAMSEY...NORTHERN WASHINGTON...ANOKA AND SOUTH CENTRAL CHISAGO COUNTIES UNTIL 900 PM CDT... AT 842 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS TORNADO WAS LOCATED SOUTH OF FOREST LAKE...OR 21 MILES WEST OF NEW RICHMOND...MOVING EAST AT 55 MPH. LOCATIONS IMPACTED INCLUDE... SCANDIA. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4538 9277 4506 9280 4508 9322 4537 9341 TIME...MOT...LOC 0145Z 265DEG 49KT 4523 9288 $$ JLT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 8:51 PM CDT | Tornado Warning | MPX | Chisago, Washington | 24 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 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.