Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 86, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 18, 2011, 12:21 AM CDT for 4 counties in Minnesota. It was in force for 54 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
- Jun 18, 2011, 12:21 AM CDT (05:21 UTC)
- Expired
- Jun 18, 2011, 1:15 AM CDT
- In force
- 54 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Benton County, MN, Morrison County, MN, Sherburne County, MN, Stearns County, MN
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 05:22 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 |
|---|---|---|---|
| Jun 18, 12:45 AM CDT | TSTM WND GST 60 | 6 Nnw St Cloud, MN | 1 INCH TREE LIMBS 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 |
|---|---|---|---|
| Jun 17, 7:22 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 105 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
- 1159 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1224 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
854 WUUS53 KMPX 180521 SVRMPX MNC009-097-141-145-180615- /O.NEW.KMPX.SV.W.0086.110618T0521Z-110618T0615Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1221 AM CDT SAT JUN 18 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BENTON COUNTY IN CENTRAL MINNESOTA... SOUTHEASTERN MORRISON COUNTY IN CENTRAL MINNESOTA... EXTREME NORTHWESTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA... EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA... * UNTIL 115 AM CDT * AT 1218 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR COLD SPRING...OR ABOUT 13 MILES WEST OF ST CLOUD...AND MOVING NORTHEAST AT 45 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. LOCATIONS IN THE WARNING INCLUDE... ST CLOUD... COLD SPRING... FARMING... RICHMOND... AVON... PLEASANT LAKE... COLLEGEVILLE... ST JOSEPH... WAITE PARK... SARTELL... SAUK RAPIDS... ST STEPHEN... RICE... 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. A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SATURDAY MORNING FOR SOUTHWESTERN MINNESOTA. && LAT...LON 4600 9384 4565 9377 4538 9448 4557 9462 TIME...MOT...LOC 0521Z 232DEG 41KT 4555 9441 WIND...HAIL 60MPH 0.75IN $$
2 follow-up statements
295 WWUS53 KMPX 180553 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1253 AM CDT SAT JUN 18 2011 MNC009-097-141-145-180615- /O.CON.KMPX.SV.W.0086.000000T0000Z-110618T0615Z/ MORRISON MN-STEARNS MN-SHERBURNE MN-BENTON MN- 1253 AM CDT SAT JUN 18 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR BENTON... NORTHWESTERN SHERBURNE...NORTHEASTERN STEARNS AND SOUTHEASTERN MORRISON COUNTIES UNTIL 115 AM CDT... AT 1245 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM WITH ESTIMATED 60 MPH WINDS IN DOWNTOWN ST CLOUD. THIS STORM WAS LOCATED NEAR SAUK RAPIDS...OR 5 MILES NORTH OF ST CLOUD... MOVING NORTHEAST AT 35 MPH. ANOTHER POTENTIAL SEVERE THUNDERSTORM WAS LOCATED JUST SOUTH OF HILLMAN WHICH COULD BE PRODUCING LARGE HAIL LOCATIONS IMPACTED INCLUDE... MAYHEW...PARENT...LITTLE ROCK...FOLEY...GILMAN...RONNEBY...MORRILL AND RUM RIVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4566 9445 4600 9384 4565 9377 4548 9423 TIME...MOT...LOC 0550Z 239DEG 30KT 4565 9410 WIND...HAIL 60MPH <.75IN $$
649 WWUS53 KMPX 180611 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 111 AM CDT SAT JUN 18 2011 MNC009-097-141-145-180625- /O.EXP.KMPX.SV.W.0086.000000T0000Z-110618T0615Z/ MORRISON MN-STEARNS MN-SHERBURNE MN-BENTON MN- 111 AM CDT SAT JUN 18 2011 ...THE SEVERE THUNDERSTORM WARNING FOR BENTON...NORTHWESTERN SHERBURNE...NORTHEASTERN STEARNS AND SOUTHEASTERN MORRISON COUNTIES WILL EXPIRE AT 115 AM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER GUSTY WINDS TO 40 MPH AND SMALL HAIL ARE STILL POSSIBLE WITH THUNDERSTORMS IN THE AREA. LAT...LON 4566 9445 4600 9384 4564 9377 4548 9423 TIME...MOT...LOC 0610Z 239DEG 30KT 4572 9388 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:00 PM CDT | Tornado Warning | MPX | Kandiyohi | 22 min |
| Jun 17, 7:04 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 26 min |
| Jun 17, 7:50 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 55 min |
| Jun 17, 7:57 PM CDT | Areal Flood Advisory | MPX | Kandiyohi | 3 hr |
| Jun 17, 7:57 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 33 min |
| Jun 17, 8:18 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 27 min |
| Jun 17, 8:25 PM CDT | Areal Flood Warning | MPX | Kandiyohi | 6 hr |
| Jun 17, 8:47 PM CDT | Special Weather Statement | MPX | Big Stone | 58 min |
| Jun 17, 9:33 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift | 57 min |
| Jun 17, 9:55 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 35 min |
| Jun 17, 10:09 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Scott, Sibley | 66 min |
| Jun 17, 10:22 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Renville, Swift, Yellow Medicine | 53 min |
| Jun 17, 10:42 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Scott, Sibley | 48 min |
| Jun 17, 11:25 PM CDT | Special Weather Statement | MPX | Kandiyohi, Meeker, Stearns | 65 min |
| Jun 17, 11:34 PM CDT | Special Weather Statement | MPX | Dakota | 56 min |
| Jun 18, 12:09 AM CDT | Special Weather Statement | MPX | Benton, Meeker, Stearns | 51 min |
| Jun 18, 6:38 AM CDT | Special Weather Statement | MPX | Dakota | 37 min |
| Jun 18, 11:58 AM CDT | Flood Watch | MPX | Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 14 more | 20 hr |
| Jun 18, 3:46 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 44 min |
| Jun 18, 4:28 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 47 min |
| Jun 18, 5:22 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 53 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.