Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 61, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 6, 2012, 2:24 AM CDT for Dakota County, Goodhue County, Washington County, Minnesota; Pierce County, Wisconsin. It was in force for 36 min. 1 report 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, 2:24 AM CDT (07:24 UTC)
- Expired
- May 6, 2012, 3:00 AM CDT
- In force
- 36 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Dakota County, MN, Goodhue County, MN, Washington County, MN, Pierce County, WI
The radar
The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 07:25 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, 2:44 AM CDT | HAIL 0.75 | Hastings, MN |
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, 7.4 hours before the alert went out and 60 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.
226 WUUS53 KMPX 060724 SVRMPX MNC037-049-163-WIC093-060815- /O.NEW.KMPX.SV.W.0061.120506T0724Z-120506T0815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 224 AM CDT SUN MAY 6 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL DAKOTA COUNTY IN EAST CENTRAL MINNESOTA... NORTH CENTRAL GOODHUE COUNTY IN SOUTHEAST MINNESOTA... SOUTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA... WEST CENTRAL PIERCE COUNTY IN WEST CENTRAL WISCONSIN... * UNTIL 315 AM CDT * AT 220 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR HAMPTON...OR ABOUT 23 MILES SOUTH OF ST PAUL...AND MOVING NORTHEAST AT 35 MPH. LOCATIONS IN THE WARNING INCLUDE... RANDOLPH... FARMINGTON... HAMPTON... COATES... NEW TRIER... VERMILLION... MIESVILLE... HASTINGS... PRESCOTT... DIAMOND BLUFF... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4486 9279 4462 9245 4451 9312 4467 9322 TIME...MOT...LOC 0724Z 246DEG 29KT 4463 9303 WIND...HAIL 60MPH 1.00IN $$
2 follow-up statements
947 WWUS53 KMPX 060746 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 246 AM CDT SUN MAY 6 2012 MNC037-049-163-WIC093-060815- /O.CON.KMPX.SV.W.0061.000000T0000Z-120506T0815Z/ DAKOTA MN-GOODHUE MN-WASHINGTON MN-PIERCE WI- 246 AM CDT SUN MAY 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL PIERCE...SOUTHEASTERN WASHINGTON...NORTH CENTRAL GOODHUE AND EAST CENTRAL DAKOTA COUNTIES UNTIL 315 AM CDT... AT 243 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR HASTINGS...OR 14 MILES NORTHWEST OF RED WING...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... PRESCOTT AND DIAMOND BLUFF. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4456 9287 4470 9299 4486 9279 4462 9245 TIME...MOT...LOC 0746Z 246DEG 29KT 4470 9280 WIND...HAIL 60MPH 1.00IN $$
382 WWUS53 KMPX 060800 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 300 AM CDT SUN MAY 6 2012 MNC037-049-163-WIC093-060815- /O.CAN.KMPX.SV.W.0061.000000T0000Z-120506T0815Z/ DAKOTA MN-GOODHUE MN-WASHINGTON MN-PIERCE WI- 300 AM CDT SUN MAY 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL PIERCE... SOUTHEASTERN WASHINGTON...NORTH CENTRAL GOODHUE AND EAST CENTRAL DAKOTA COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4456 9287 4470 9299 4486 9279 4462 9245 TIME...MOT...LOC 0800Z 246DEG 29KT 4474 9265 $$
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, 1:44 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Dakota, Hennepin, Ramsey, Scott | 46 min |
| May 6, 2:14 AM CDT | Special Weather Statement | MPX | Dakota | 46 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 |
| May 6, 3:21 AM CDT | Special Weather Statement | MPX | Pepin | 39 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Severe Thunderstorm Warnings in Wisconsin, 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.