Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 104, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 1, 2011, 6:56 PM CDT for Blue Earth County, Brown County, Nicollet County, Minnesota. It was in force for 34 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
- Jul 1, 2011, 6:56 PM CDT (23:56 UTC)
- Expired
- Jul 1, 2011, 7:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 65.0 mph
Counties Blue Earth County, MN, Brown County, MN, Nicollet County, MN
The radar
The Minneapolis radar (KMPX), 83 km from the middle of the area, began a volume at 23:58 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 1, 7:10 PM CDT | TSTM WND DMG | New Ulm, MN | FEW TREES DOWN |
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 1, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.9 hours before the alert went out and 81 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
- 3970 J/kg
- Mixed-layer CIN
- -245 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
961 WUUS53 KMPX 012356 SVRMPX MNC013-015-103-020030- /O.NEW.KMPX.SV.W.0104.110701T2356Z-110702T0030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 656 PM CDT FRI JUL 1 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME NORTHWESTERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA... NORTHEAST BROWN COUNTY IN SOUTH CENTRAL MINNESOTA... CENTRAL NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 730 PM CDT * AT 654 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 65 MPH. THIS STORM WAS LOCATED JUST SOUTH OF NEW ULM...AND MOVING NORTHEAST AT 50 MPH. LOCATIONS IN THE WARNING INCLUDE... NEW ULM... COURTLAND... NICOLLET... CAMBRIA... 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 4445 9426 4437 9400 4414 9441 4421 9461 TIME...MOT...LOC 2355Z 224DEG 45KT 4425 9447 WIND...HAIL 65MPH 1.00IN $$ TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 4:05 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Renville, Yellow Medicine | 55 min |
| Jul 1, 4:31 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Wright | 59 min |
| Jul 1, 4:37 PM CDT | Tornado Warning | MPX | Redwood, Renville | 23 min |
| Jul 1, 4:53 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Redwood, Renville, Sibley | 67 min |
| Jul 1, 4:57 PM CDT | Tornado Warning | MPX | Redwood, Renville | 33 min |
| Jul 1, 4:59 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 61 min |
| Jul 1, 5:13 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville, Sibley, Stearns and 1 more | 62 min |
| Jul 1, 5:27 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti, Sherburne, Wright | 48 min |
| Jul 1, 5:38 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Kanabec, Mille Lacs, Morrison | 67 min |
| Jul 1, 5:52 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Benton, Hennepin, Isanti, Meeker, Mille Lacs and 3 more | 53 min |
| Jul 1, 6:02 PM CDT | Special Weather Statement | MPX | Carver, Hennepin, Scott | 43 min |
| Jul 1, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 29 min |
| Jul 1, 6:20 PM CDT | Tornado Warning | MPX | Benton, Sherburne, Stearns | 25 min |
| Jul 1, 6:27 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti, Kanabec, Mille Lacs | 63 min |
| Jul 1, 6:42 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Benton, Chisago, Hennepin, Isanti, Kanabec and 5 more | 63 min |
| Jul 1, 6:42 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 33 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
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.