Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 192, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 30, 2011, 6:58 PM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 62 min. 3 reports 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, 6:58 PM CDT (23:58 UTC)
- Expired
- Jul 30, 2011, 8:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Mille Lacs County, MN, Morrison County, MN
The radar
The Minneapolis radar (KMPX), 137 km from the middle of the area, began a volume at 00:03 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, 7:02 PM CDT | HAIL 0.88 | 1 N Hillman, MN | |
| Jul 30, 7:08 PM CDT | FUNNEL CLOUD | 4 N Hillman, MN | |
| Jul 30, 7:20 PM CDT | HAIL 0.88 | 3 Nnw Vineland, 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, 12.0 hours before the alert went out and 136 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.
643
WUUS53 KMPX 302358
SVRMPX
MNC095-097-310100-
/O.NEW.KMPX.SV.W.0192.110730T2358Z-110731T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
658 PM CDT SAT JUL 30 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
NORTHEAST MORRISON COUNTY IN CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 654 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 6 MILES EAST OF HARDING...OR ABOUT 21 MILES
SOUTHEAST OF BRAINERD...AND MOVING EAST AT 15 MPH.
LOCATIONS IN THE WARNING INCLUDE...
HARDING...
HILLMAN...
VINELAND...
ONAMIA...
BAYVIEW...
WAHKON...
ISLE...
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.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 4598 9345 4597 9352 4590 9352 4605 9410
4616 9411 4616 9383 4624 9382 4624 9343
TIME...MOT...LOC 2358Z 288DEG 14KT 4613 9389
WIND...HAIL 60MPH 1.00IN
$$1 follow-up statement
355
WWUS53 KMPX 310030
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
730 PM CDT SAT JUL 30 2011
MNC095-097-310100-
/O.CON.KMPX.SV.W.0192.000000T0000Z-110731T0100Z/
MILLE LACS MN-MORRISON MN-
730 PM CDT SAT JUL 30 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MORRISON AND NORTHERN MILLE LACS COUNTIES UNTIL 800 PM CDT...
AT 726 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ONAMIA...OR
23 MILES NORTH OF MILACA...MOVING EAST AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
ONAMIA...BAYVIEW...WAHKON...VINELAND AND ISLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
&&
LAT...LON 4598 9345 4597 9352 4590 9352 4605 9410
4616 9411 4616 9383 4624 9382 4624 9343
TIME...MOT...LOC 0030Z 288DEG 14KT 4609 9369
WIND...HAIL 60MPH 1.00IN
$$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, 6:06 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 54 min |
| Jul 30, 6:54 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 51 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.