Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 158, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2011, 8:35 AM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2011, 8:35 AM CDT (13:35 UTC)
- Expired
- Jul 19, 2011, 9:30 AM CDT
- In force
- 55 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), 129 km from the middle of the area, began a volume at 13:37 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 1.6 hours before the alert went out and 129 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
- 5144 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
596
WUUS53 KMPX 191335
SVRMPX
MNC095-097-191430-
/O.NEW.KMPX.SV.W.0158.110719T1335Z-110719T1430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
835 AM CDT TUE JUL 19 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
EASTERN MORRISON COUNTY IN CENTRAL MINNESOTA...
* UNTIL 930 AM CDT
* AT 833 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR LASTRUP...OR ABOUT 13 MILES NORTHEAST
OF LITTLE FALLS...AND MOVING EAST AT 35 MPH.
LOCATIONS IN THE WARNING INCLUDE...
GENOLA...
HARDING...
PIERZ...
LASTRUP...
HILLMAN...
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.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
&&
LAT...LON 4616 9343 4598 9343 4597 9352 4593 9351
4577 9352 4595 9432 4616 9421
TIME...MOT...LOC 1335Z 285DEG 29KT 4606 9411
WIND...HAIL 60MPH 1.00IN
$$1 follow-up statement
545
WWUS53 KMPX 191409
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
909 AM CDT TUE JUL 19 2011
MNC095-097-191430-
/O.CON.KMPX.SV.W.0158.000000T0000Z-110719T1430Z/
MILLE LACS MN-MORRISON MN-
909 AM CDT TUE JUL 19 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
MORRISON AND NORTHERN MILLE LACS COUNTIES UNTIL 930 AM CDT...
A SEPARATE SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR SOUTHEAST
MORRISON AND SOUTHERN MILLE LACS COUNTIES THRUOGH 1015 AM CDT.
AT 904 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG
A LINE EXTENDING FROM 7 MILES SOUTHWEST OF MALMO TO HILLMAN TO
BUCKMAN...MOVING SOUTHEAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
ONAMIA...BAYVIEW...WAHKON...ISLE AND BOCK.
LAT...LON 4616 9343 4598 9343 4597 9352 4593 9351
4577 9352 4595 9432 4616 9421
TIME...MOT...LOC 1408Z 299DEG 27KT 4623 9356 4595 9387
4588 9399
WIND...HAIL 60MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 6:20 AM CDT | Special Weather Statement | MPX | Todd | 40 min |
| Jul 19, 6:48 AM CDT | Severe Thunderstorm Warning | MPX | Todd | 57 min |
| Jul 19, 7:43 AM CDT | Special Weather Statement | MPX | Morrison | 77 min |
| Jul 19, 7:46 AM CDT | Special Weather Statement | MPX | Todd | 29 min |
| Jul 19, 8:19 AM CDT | Areal Flood Advisory | MPX | Morrison | 3 hr |
| Jul 19, 8:26 AM CDT | Special Weather Statement | MPX | Kanabec, Mille Lacs | 79 min |
| Jul 19, 8:53 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Morrison | 82 min |
| Jul 19, 9:01 AM CDT | Flash Flood Warning | MPX | Mille Lacs, Morrison | 5 hr |
| Jul 19, 9:30 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 42 min |
| Jul 19, 9:45 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Isanti, Kanabec, Mille Lacs, Sherburne | 60 min |
| Jul 19, 10:09 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Sherburne | 36 min |
| Jul 19, 10:40 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 80 min |
| Jul 19, 11:11 AM CDT | Areal Flood Advisory | MPX | Anoka, Dakota, Ramsey, Washington | 3 hr |
| Jul 19, 11:25 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey, Washington | 65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.