Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 399, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 21, 2005, 6:38 PM CDT for 4 counties in Minnesota. It was in force for 67 min. 48 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
- Sep 21, 2005, 6:38 PM CDT (23:38 UTC)
- Expired
- Sep 21, 2005, 7:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Anoka County, MN, Hennepin County, MN, Sherburne County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 43 km from the middle of the area, began a volume at 23:41 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 |
|---|---|---|---|
| Sep 21, 6:38 PM CDT | HAIL 1 | Monticello, MN | |
| Sep 21, 6:41 PM CDT | TSTM WND GST 67 | Monticello, MN | |
| Sep 21, 6:44 PM CDT | HAIL 2 | Monticello, MN | |
| Sep 21, 6:46 PM CDT | TSTM WND DMG | Elk River, MN | TREES DOWNED ACROSS COUNTY ROAD 15. TREE ON HOUSE NEAR ELEMENTARY SCHOOL. |
| Sep 21, 6:46 PM CDT | HAIL 0.75 | Elk River, MN | TREES DOWNED ACROSS COUNTY ROAD 15. TREE ON HOUSE NEAR ELEMENTARY SCHOOL. |
| Sep 21, 6:46 PM CDT | HAIL 0.88 | Elk River, MN | |
| Sep 21, 6:47 PM CDT | TSTM WND GST 58 | St Michael, MN | |
| Sep 21, 6:47 PM CDT | HAIL 0.88 | St Michael, MN | |
| Sep 21, 6:50 PM CDT | TSTM WND DMG | Rogers, MN | APARTMENT BUILDING WALLS BLOWN IN. |
| Sep 21, 6:50 PM CDT | TSTM WND DMG | Rogers, MN | APARTMENT BUILDING WALLS BLOWN IN ON HWY 101 ON NORTHEAST SIDE OF TOWN |
| Sep 21, 6:50 PM CDT | HAIL 1.5 | 4 S Rogers, MN | |
| Sep 21, 6:52 PM CDT | HAIL 0.75 | Monticello, MN | |
| Sep 21, 6:53 PM CDT | HAIL 1.75 | St Michael, MN | |
| Sep 21, 6:56 PM CDT | HAIL 0.75 | Hanover, MN | |
| Sep 21, 6:57 PM CDT | HAIL 0.75 | Otsego, MN | |
| Sep 21, 6:58 PM CDT | HAIL 0.75 | Ramsey, MN | HAILED FOR 5 MINUTES |
| Sep 21, 6:58 PM CDT | HAIL 1.75 | Rogers, MN | |
| Sep 21, 6:58 PM CDT | HAIL 2.5 | Andover, MN | |
| Sep 21, 6:59 PM CDT | HAIL 0.88 | Dayton, MN | |
| Sep 21, 7:00 PM CDT | HAIL 0.75 | Ramsey, MN | |
| Sep 21, 7:00 PM CDT | HAIL 0.75 | Ramsey, MN | |
| Sep 21, 7:02 PM CDT | HAIL 0.88 | Dayton, MN | |
| Sep 21, 7:03 PM CDT | TSTM WND DMG | Andover, MN | THREE HOUSES DESTROYED...PEOPLE TRAPPED IN DAMAGED HOUSES. |
| Sep 21, 7:03 PM CDT | TORNADO | Andover, MN | THREE HOUSES SIGNIFICANTLY DAMAGED. OTHER HOMES...A SHED...AND GARAGES DAMAGED. MANY LARGE TREES DOWNED. CANOE THROWN 2 BLOCKS. SOME DAMAGE FROM DOWNBURST WINDS. SOME DAMAGE FROM TORNADO. |
| Sep 21, 7:04 PM CDT | TSTM WND DMG | Andover, MN | 3 FOOT DIAMETER TREE DOWN. |
| Sep 21, 7:04 PM CDT | TSTM WND DMG | Andover, MN | SEVERAL TREES UP TO 3 FOOT DIAMETER DOWNED. |
| Sep 21, 7:04 PM CDT | HAIL 0.75 | Maple Grove, MN | |
| Sep 21, 7:04 PM CDT | TORNADO | Andover, MN | SEVERAL TREES UP TO 3 FOOT DIAMETER AND POWER LINES WERE DOWNED. WORST DAMAGE ON SOUTHERN AND EASTERN SIDE OF TOWN JUST NORTH OF BUNKER HILLS REGIONAL PARK. HOMES AND GARAGES DAMAGED. SOME DAMAGE FROM WIDESPREAD DOWNBURST WINDS. SOME DAMAGE FROM TORNADO. |
| Sep 21, 7:05 PM CDT | HAIL 0.75 | Maple Grove, MN | |
| Sep 21, 7:06 PM CDT | HAIL 1 | Maple Grove, MN | |
| Sep 21, 7:07 PM CDT | TSTM WND DMG | Brooklyn Park, MN | GODFATHERS PIZZA WALL BLOWN IN. |
| Sep 21, 7:07 PM CDT | TSTM WND DMG | Brooklyn Park, MN | GODFATHERS PIZZA WALL BLOWN IN. THREE INCH DIAMETER TREES DOWNED. |
| Sep 21, 7:07 PM CDT | TSTM WND DMG | Brooklyn Park, MN | GODFATHERS PIZZA WALL BLOWN IN. THREE INCH DIAMETER TREES DOWNED. SHINGLE...SIDING AND DECK DAMAGE ON HOME. |
| Sep 21, 7:08 PM CDT | TSTM WND DMG | Coon Rapids, MN | SEVERAL 12 INCH DIAMETER TREES UPROOTED |
| Sep 21, 7:08 PM CDT | TSTM WND DMG | Coon Rapids, MN | SEVERAL 12 INCH DIAMETER TREES UPROOTED. ROOF DAMAGE. |
| Sep 21, 7:08 PM CDT | TSTM WND DMG | Ramsey, MN | 3 FOOT DIAMETER TREES DOWN. |
| Sep 21, 7:08 PM CDT | HAIL 1 | Ramsey, MN | WINDOWS BROKEN FROM HAIL. |
| Sep 21, 7:13 PM CDT | HAIL 0.75 | Brooklyn Park, MN | |
| Sep 21, 7:14 PM CDT | TSTM WND DMG | Brooklyn Park, MN | POWER POLES SNAPPED. NUMEROUS TREES DAMAGED. UNCONFIRMED PUBLIC REPORT OF A TORNADO. |
| Sep 21, 7:14 PM CDT | TORNADO | Brooklyn Park, MN | |
| Sep 21, 7:15 PM CDT | TSTM WND DMG | Coon Rapids, MN | LARGE PORTION OF ROOF REMOVED...TREES BROKEN IN HALF. |
| Sep 21, 7:15 PM CDT | TORNADO 2 | Coon Rapids, MN | LARGE PORTION OF ROOF REMOVED AND BLOWN ONTO UNIVERSITY AVENUE. MANY TREES DOWNED...INCLUDING 100 TREES DOWNED AT BUNKER HILLS GOLF COURSE. TORNADO TOUCHED DOWN IN EXTREME EASTERN COON RAPIDS AND CONTINUED INTO BLAINE. |
| Sep 21, 7:19 PM CDT | HAIL 0.75 | Anoka, MN | |
| Sep 21, 7:20 PM CDT | TSTM WND DMG | Blaine, MN | HOUSES SEVERELY DAMAGED...ROOF TORN OFF HOME AND ON FIRE...NEAR MADISON SCHOOL. |
| Sep 21, 7:20 PM CDT | TORNADO 2 | Blaine, MN | *** 1 INJ *** 10 HOMES SEVERELY DAMAGED AND CONDEMNED. 20 OTHER HOMES SUFFERED SIGNIFICANT DAMAGE. WIDESPREAD TREE DAMAGE. HEAVIEST DAMAGE NEAR MADISON SCHOOL. ONE WOMAN WAS TAKEN TO THE HOSPITAL WITH INJURIES SUSTAINED WHEN A TREE FELL ONTO HER HEAVILY DAMAGE |
| Sep 21, 7:21 PM CDT | TSTM WND DMG | Blaine, MN | ROOF OFF OF TWO HOMES NEAR JACKSON AND 104TH COURT |
| Sep 21, 7:21 PM CDT | TORNADO 2 | Blaine, MN | ROOF OFF OF TWO HOMES NEAR JACKSON AND 104TH COURT. TORNADO LIFTED NEAR NATIONAL SPORTS CENTER. |
| Sep 21, 7:44 PM CDT | TSTM WND DMG | Brooklyn Park, MN | LARGE TREE DOWNED |
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 |
|---|---|---|---|
| Sep 21, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 21, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.6 hours before the alert went out and 43 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
- 15 J/kg
- Mixed-layer CIN
- -441 J/kg
- Mixed-layer LCL
- 1544 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 212339 SVRMPX MNC003-053-141-171-220045- /O.NEW.KMPX.SV.W.0399.050921T2338Z-050922T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 638 PM CDT WED SEP 21 2005 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SHERBURNE COUNTY IN CENTRAL MINNESOTA WRIGHT COUNTY IN CENTRAL MINNESOTA ANOKA COUNTY IN EAST CENTRAL MINNESOTA HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA * UNTIL 745 PM CDT * AT 636 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ELK RIVER TO BUFFALO...AND MOVING SOUTHEAST AT 40 MPH. * LOCATIONS IMPACTED INCLUDE... COON RAPIDS... MAPLE GROVE... BLAINE... BROOKLYN PARK... PLYMOUTH... MINNEAPOLIS... ANOKA... REMEMBER THAT SEVERE THUNDRSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE ADVANCE NOTICE. LAT...LON 4542 9354 4519 9416 4493 9364 4521 9307 $$ KAT
1 follow-up statement
000 WWUS53 KMPX 220001 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 701 PM CDT WED SEP 21 2005 MNC003-053-141-171-220045- /O.CON.KMPX.SV.W.0399.000000T0000Z-050922T0045Z/ SHERBURNE MN-WRIGHT MN-ANOKA MN-HENNEPIN MN- 701 PM CDT WED SEP 21 2005 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR HENNEPIN...ANOKA...WRIGHT AND SHERBURNE COUNTIES... AT 658 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 75 MPH. SIREN ACTIVATION IS SUGGESTED FOR HENNEPIN COUNTY. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM OAK PARK TO MEDINA...AND MOVING SOUTHEAST AT 40 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE RASSAT...OTSEGO...ORONO... HAMEL...CEDAR...ST MICHAEL...ROGERS...ROCKFORD...RAMSEY...PLYMOUTH... OSSEO...MONTICELLO...MAPLE PLAIN...MAPLE LAKE...MAPLE GROVE... LORETTO...LONG LAKE...HANOVER...HAM LAKE...GREENFIELD...ELK RIVER... DELANO...DAYTON...CORCORAN...COON RAPIDS...CHAMPLIN...BUFFALO... BROOKLYN PARK...BLAINE...BIG LAKE...ANOKA...ANDOVER AND ALBERTVILLE. THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS LAT...LON 4542 9354 4519 9416 4493 9364 4521 9307 $$ KAT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 5:23 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Stearns | 67 min |
| Sep 21, 5:34 PM CDT | Tornado Warning | MPX | Stearns | 56 min |
| Sep 21, 5:35 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Sherburne | 40 min |
| Sep 21, 5:50 PM CDT | Tornado Warning | MPX | Kandiyohi | 40 min |
| Sep 21, 5:59 PM CDT | Severe Thunderstorm Warning | MPX | Meeker | 61 min |
| Sep 21, 6:04 PM CDT | Tornado Warning | MPX | Sherburne, Wright | 41 min |
| Sep 21, 6:14 PM CDT | Tornado Warning | MPX | Meeker | 31 min |
| Sep 21, 6:21 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 39 min |
| Sep 21, 6:53 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker | 67 min |
| Sep 21, 6:59 PM CDT | Tornado Warning | MPX | McLeod, Meeker | 27 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2005Every severe thunderstorm warning in 2005
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.