Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 107, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 1, 2011, 7:38 PM CDT for Blue Earth County, Faribault County, Waseca County, Minnesota. It was in force for 37 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, 7:38 PM CDT (00:38 UTC)
- Expired
- Jul 1, 2011, 8:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Blue Earth County, MN, Faribault County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 00:40 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, 8:00 PM CDT | TSTM WND GST 62 | 3 W Waseca, MN | THERE WAS ALSO LOTS OF TREE DAMAGE AND POWERLINES DOWN IN AND AROUND THE TOWN OF WASECA |
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 00:00Z, 0.6 hours before the alert went out and 110 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
- 4059 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1509 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 20.8
The text
As transmitted, in the capitals the NWS used until 2016.
983
WUUS53 KMPX 020038
SVRMPX
MNC013-043-161-020115-
/O.NEW.KMPX.SV.W.0107.110702T0038Z-110702T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
738 PM CDT FRI JUL 1 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
WESTERN AND NORTHERN WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL 815 PM CDT
* AT 735 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
ST CLAIR TO AMBOY TO BLUE EARTH...AND MOVING EAST AT 40 MPH.
LOCATIONS IN THE WARNING INCLUDE...
BLUE EARTH...
WINNEBAGO...
EAGLE LAKE...
ST CLAIR...
MAPLETON...
DELAVAN...
PEMBERTON...
JANESVILLE...
MINNESOTA LAKE...
BRUSH CREEK...
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 4419 9345 4360 9382 4359 9412 4363 9425
4379 9417 4418 9394
TIME...MOT...LOC 0038Z 286DEG 36KT 4408 9390 4382 9406
4361 9415
WIND...HAIL 60MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 7:10 PM CDT | Special Weather Statement | MPX | Chisago | 35 min |
| Jul 1, 7:23 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Le Sueur, McLeod, Nicollet, Scott, Sibley | 37 min |
| Jul 1, 7:24 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Washington | 66 min |
| Jul 1, 7:30 PM CDT | Areal Flood Warning | MPX | Meeker | 3 hr |
| Jul 1, 7:39 PM CDT | Areal Flood Warning | MPX | Benton, Morrison | 3 hr |
| Jul 1, 7:45 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 45 min |
| Jul 1, 7:49 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Carver, Dakota, Hennepin, Le Sueur, Ramsey and 4 more | 56 min |
| Jul 1, 7:59 PM CDT | Areal Flood Advisory | MPX | Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more | 105 min |
| Jul 1, 8:03 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Dakota, Faribault, Freeborn, Goodhue, Le Sueur and 3 more | 57 min |
| Jul 1, 8:27 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Washington | 63 min |
| Jul 1, 8:31 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti, Washington | 59 min |
| Jul 1, 8:59 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 61 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.