Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 190, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 30, 2011, 6:06 PM CDT for Todd County, 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
- Jul 30, 2011, 6:06 PM CDT (23:06 UTC)
- Expired
- Jul 30, 2011, 7:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Todd County, MN
The radar
The Minneapolis radar (KMPX), 182 km from the middle of the area, began a volume at 23:08 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 30, 6:27 PM CDT | HAIL 1 | 3 W Eagle Bend, MN |
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 30, 5:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 180 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
- 2252 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
637 WUUS53 KMPX 302306 SVRMPX MNC153-310000- /O.NEW.KMPX.SV.W.0190.110730T2306Z-110731T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 606 PM CDT SAT JUL 30 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN TODD COUNTY IN CENTRAL MINNESOTA... * UNTIL 700 PM CDT * AT 603 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 8 MILES WEST OF BERTHA...OR ABOUT 22 MILES WEST OF STAPLES...AND MOVING EAST AT 25 MPH. LOCATIONS IN THE WARNING INCLUDE... LONG PRAIRIE... HEWITT... BERTHA... EAGLE BEND... CLARISSA... BROWERVILLE... PHILBROOK... 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. REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. && LAT...LON 4636 9466 4592 9465 4606 9514 4637 9516 TIME...MOT...LOC 2305Z 280DEG 20KT 4625 9522 WIND...HAIL 60MPH 1.00IN $$
1 follow-up statement
588 WWUS53 KMPX 302325 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 625 PM CDT SAT JUL 30 2011 MNC153-310000- /O.CON.KMPX.SV.W.0190.000000T0000Z-110731T0000Z/ TODD MN- 625 PM CDT SAT JUL 30 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN TODD COUNTY UNTIL 700 PM CDT... AT 622 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EAGLE BEND... OR 19 MILES NORTHWEST OF LONG PRAIRIE...MOVING SOUTHEAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... LONG PRAIRIE...EAGLE BEND...CLARISSA...PHILBROOK AND BROWERVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 4636 9466 4592 9465 4606 9514 4637 9516 TIME...MOT...LOC 2325Z 303DEG 18KT 4618 9511 WIND...HAIL 60MPH 1.00IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 3:56 AM CDT | Special Weather Statement | MPX | Douglas, Todd | 64 min |
| Jul 30, 9:53 AM CDT | Special Weather Statement | MPX | Mille Lacs | 52 min |
| Jul 30, 10:32 AM CDT | Special Weather Statement | MPX | Chisago, Isanti, Kanabec | 58 min |
| Jul 30, 11:48 AM CDT | Severe Thunderstorm Warning | MPX | Stevens | 42 min |
| Jul 30, 1:07 PM CDT | Special Weather Statement | MPX | Lac qui Parle | 53 min |
| Jul 30, 6:54 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 51 min |
| Jul 30, 6:58 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Morrison | 62 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.