Alert archive / Minnesota / Tornado Warnings in 2009
Tornado Warning 29, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 8, 2009, 8:49 PM CDT for Anoka County, Hennepin County, Ramsey County, Minnesota. It was in force for 26 min. 5 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
- Aug 8, 2009, 8:49 PM CDT (01:49 UTC)
- Expired
- Aug 8, 2009, 9:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Anoka County, MN, Hennepin County, MN, Ramsey County, MN
The radar
The Minneapolis radar (KMPX), 31 km from the middle of the area, began a volume at 01:49 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 8, 8:50 PM CDT | FUNNEL CLOUD | Plymouth, MN | FUNNEL SIGHTED AT INTERSECTION OF 494 AND HIGHWAY 55. |
| Aug 8, 8:55 PM CDT | FUNNEL CLOUD | Plymouth, MN | FUNNEL SIGHTED JUST EAST OF INTERSECTION OF 494 AND ROCKFORD ROAD. |
| Aug 8, 9:04 PM CDT | FUNNEL CLOUD | Plymouth, MN | FUNNEL CLOUD APPROACHING COUNTY ROAD 169 ALONG COUNTY ROAD 9. |
| Aug 8, 9:06 PM CDT | TSTM WND DMG | Plymouth, MN | TWO AND ONE HALF INCHE TREES DOWN NEAR INTERSECTION OF 101N AND 26TH AVENUE. |
| Aug 8, 9:16 PM CDT | TSTM WND DMG | 1 N New Brighton, MN | TREE DOWN ACROSS PATH IN LONG LAKE 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 |
|---|---|---|---|
| Aug 8, 3:46 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.8 hours before the alert went out and 33 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
- 3715 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 3.8
- Supercell composite
- 16.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KMPX 090149 TORMPX MNC003-053-123-090215- /O.NEW.KMPX.TO.W.0029.090809T0149Z-090809T0215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 849 PM CDT SAT AUG 8 2009 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA... CENTRAL AND NORTHEASTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA... NORTHWESTERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 915 PM CDT * AT 845 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO IN SOUTHWEST PLYMOUTH. RADAR SHOWED THE TORNADIC STORM MOVING NORTHEAST AT 30 MPH. * LOCATIONS IN THE WARNING INCLUDE... PLYMOUTH... MEDICINE LAKE... NEW HOPE... CRYSTAL... ROBBINSDALE... BROOKLYN PARK... BROOKLYN CENTER... COLUMBIA HEIGHTS... HILLTOP... FRIDLEY... SPRING LAKE PARK... NEW BRIGHTON... MOUNDSVIEW... 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 1000 PM CDT SATURDAY EVENING FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4517 9324 4506 9317 4497 9353 4505 9355 TIME...MOT...LOC 0147Z 245DEG 27KT 4502 9349 $$
1 follow-up statement
000 WWUS53 KMPX 090209 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 909 PM CDT SAT AUG 8 2009 MNC003-053-123-090220- /O.CON.KMPX.TO.W.0029.000000T0000Z-090809T0215Z/ ANOKA MN-HENNEPIN MN-RAMSEY MN- 909 PM CDT SAT AUG 8 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTHWESTERN RAMSEY...EAST CENTRAL AND NORTHEASSTERN HENNEPIN AND SOUTHERN ANOKA COUNTIES... AT 906 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR BROOKLYN CENTER...AND MOVING NORTHEAST AT 25 MPH. SPOTTERS WERE ALSO REPORTING A FUNNEL CLOUD IN A SECOND AREA... NEAR HIGHWAY 169 AND ROCKFORD ROAD IN THE WESTERN PORTION OF GOLDEN VALLEY. LOCATIONS IN THE WARNING INCLUDE... BROOKLYN CENTER...COLUMBIA HEIGHTS...HILLTOP...FRIDLEY...SPRING LAKE PARK...MOUNDS VIEW AND NEW BRIGHTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OR PRODUCING TORNADOES AND LARGE DAMAGING HAIL. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4501 9339 4510 9340 4517 9324 4506 9317 TIME...MOT...LOC 0207Z 240DEG 21KT 4509 9331 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:31 PM CDT | Tornado Warning | MPX | Hennepin | 29 min |
| Aug 8, 9:13 PM CDT | Tornado Warning | MPX | Anoka, Ramsey, Washington | 32 min |
| Aug 8, 9:43 PM CDT | Tornado Warning | MPX | Washington | 32 min |
| Aug 8, 10:01 PM CDT | Tornado Warning | MPX | Washington | 29 min |
| Aug 8, 10:14 PM CDT | Tornado Warning | MPX | Washington | 31 min |
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.