Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 60, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 6, 2012, 1:44 AM CDT for 5 counties in Minnesota. It was in force for 46 min. 7 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
- May 6, 2012, 1:44 AM CDT (06:44 UTC)
- Expired
- May 6, 2012, 2:30 AM CDT
- In force
- 46 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Carver County, MN, Dakota County, MN, Hennepin County, MN, Ramsey County, MN, Scott County, MN
The radar
The Minneapolis radar (KMPX), 12 km from the middle of the area, began a volume at 06:48 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 |
|---|---|---|---|
| May 6, 1:45 AM CDT | HAIL 0.75 | 4 Sw Shakopee, MN | DIME SIZE HAIL. |
| May 6, 1:47 AM CDT | HAIL 0.75 | Victoria, MN | DIME SIZE HAIL |
| May 6, 1:47 AM CDT | HAIL 0.88 | 2 Ese Shakopee, MN | |
| May 6, 1:56 AM CDT | HAIL 0.75 | Prior Lake, MN | DIME SIZE HAIL. |
| May 6, 2:06 AM CDT | HAIL 0.75 | Bloomington, MN | |
| May 6, 2:15 AM CDT | TSTM WND DMG | Bloomington, MN | LARGE TREE LIMBS DOWNED |
| May 6, 2:18 AM CDT | HAIL 0.88 | Bloomington, MN | PENNY TO NICKEL SIZED HAIL REPORTED LASTED LESS THEN A MINUTE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 6.7 hours before the alert went out and 14 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
744 WUUS53 KMPX 060644 SVRMPX MNC019-037-053-123-139-060730- /O.NEW.KMPX.SV.W.0060.120506T0644Z-120506T0730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 144 AM CDT SUN MAY 6 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA... NORTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA... SOUTHEASTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA... SOUTHWESTERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA... NORTHEASTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 230 AM CDT * AT 142 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHASKA...OR ABOUT 17 MILES SOUTHWEST OF PLYMOUTH...AND MOVING NORTHEAST AT 35 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. LOCATIONS IN THE WARNING INCLUDE... PLYMOUTH... MINNEAPOLIS... CHASKA... CARVER... VICTORIA... MARYSTOWN... WACONIA... MOUND... CHANHASSEN... SHAKOPEE... PRIOR LAKE... SHOREWOOD... ORONO... EXCELSIOR... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4514 9339 4482 9305 4468 9363 4485 9380 TIME...MOT...LOC 0644Z 237DEG 30KT 4481 9359 WIND...HAIL 60MPH 0.88IN $$
1 follow-up statement
793
WWUS53 KMPX 060716
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
216 AM CDT SUN MAY 6 2012
MNC019-139-060731-
/O.CAN.KMPX.SV.W.0060.000000T0000Z-120506T0730Z/
CARVER MN-SCOTT MN-
216 AM CDT SUN MAY 6 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SCOTT AND EASTERN
CARVER COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED
AREA.
LAT...LON 4490 9345 4499 9324 4496 9320 4491 9320
4489 9316 4490 9314 4483 9306 4476 9330
TIME...MOT...LOC 0716Z 237DEG 30KT 4496 9327
$$
MNC037-053-060730-
/O.CON.KMPX.SV.W.0060.000000T0000Z-120506T0730Z/
DAKOTA MN-HENNEPIN MN-
216 AM CDT SUN MAY 6 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
HENNEPIN AND NORTHWESTERN DAKOTA COUNTIES UNTIL 230 AM CDT...
AT 211 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. THIS
STORM WAS LOCATED NEAR ST LOUIS PARK...OR NEAR MINNEAPOLIS...MOVING
NORTHEAST AT 35 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE
DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
MENDOTA HEIGHTS AND MENDOTA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
&&
LAT...LON 4490 9345 4499 9324 4496 9320 4491 9320
4489 9316 4490 9314 4483 9306 4476 9330
TIME...MOT...LOC 0716Z 237DEG 30KT 4496 9327
WIND...HAIL 60MPH 0.88IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:58 PM CDT | Special Weather Statement | MPX | Anoka, Chisago, Isanti, Sherburne | 47 min |
| May 5, 8:35 PM CDT | River Flood Watch | MPX | Todd | 15 hr |
| May 5, 8:48 PM CDT | Special Weather Statement | MPX | Lac qui Parle | 27 min |
| May 5, 9:01 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 14 min |
| May 5, 9:24 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 41 min |
| May 5, 9:27 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 63 min |
| May 5, 11:24 PM CDT | Special Weather Statement | MPX | Renville | 66 min |
| May 5, 11:52 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 42 min |
| May 6, 12:39 AM CDT | Special Weather Statement | MPX | Carver, McLeod | 66 min |
| May 6, 1:35 AM CDT | Special Weather Statement | MPX | Carver, Hennepin, Scott | 40 min |
| May 6, 2:14 AM CDT | Special Weather Statement | MPX | Dakota | 46 min |
| May 6, 2:24 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Washington | 36 min |
| May 6, 10:54 AM CDT | River Flood Warning | MPX | Redwood | 22 hr |
| May 6, 10:54 AM CDT | River Flood Warning | MPX | Brown | 33 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012
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.