Alert archive / Minnesota / Tornado Warnings in 2021
Tornado Warning 23, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Sep 16, 2021, 6:32 PM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 43 min. 2 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
- Sep 16, 2021, 6:32 PM CDT (23:32 UTC)
- Expired
- Sep 16, 2021, 7:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Mille Lacs County, MN, Morrison County, MN
The radar
The Minneapolis radar (KMPX), 141 km from the middle of the area, began a volume at 23:33 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 |
|---|---|---|---|
| Sep 16, 6:40 PM CDT | HAIL 2 | 6 E Camp Ripley, MN | PHOTO ON SOCIAL MEDIA. |
| Sep 16, 7:02 PM CDT | FUNNEL CLOUD | 5 Se Harding, MN | FUNNEL CLOUD JUST TO THE NE OF SPOTTERS LOCATION. |
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 |
|---|---|---|---|
| Sep 16, 5:57 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.5 hours before the alert went out and 141 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1213 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 362 m²/s²
- 0-3 km storm-relative helicity
- 428 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
The text
As transmitted.
066
WFUS53 KMPX 162332
TORMPX
MNC095-097-170015-
/O.NEW.KMPX.TO.W.0023.210916T2332Z-210917T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
632 PM CDT Thu Sep 16 2021
The National Weather Service in the Twin Cities has issued a
* Tornado Warning for...
Northern Mille Lacs County in east central Minnesota...
East central Morrison County in central Minnesota...
* Until 715 PM CDT.
* At 632 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Lastrup, or 13 miles east of Little Falls, moving
northeast at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Vineland and Mille Lacs Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4601 9350 4592 9432 4616 9431 4616 9381
4624 9381 4624 9360
TIME...MOT...LOC 2332Z 239DEG 40KT 4604 9410
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
JRB1 follow-up statement
014
WWUS53 KMPX 170011
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
711 PM CDT Thu Sep 16 2021
MNC095-097-170021-
/O.EXP.KMPX.TO.W.0023.000000T0000Z-210917T0015Z/
Mille Lacs MN-Morrison MN-
711 PM CDT Thu Sep 16 2021
...THE TORNADO WARNING FOR NORTHERN MILLE LACS AND EAST CENTRAL
MORRISON COUNTIES WILL EXPIRE AT 715 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until midnight CDT for central and
east central Minnesota.
Remember, a Tornado Warning still remains in effect for southeastern
Morrison and west-central Mille Lacs counties.
LAT...LON 4601 9350 4592 9432 4616 9431 4616 9381
4624 9381 4624 9360
TIME...MOT...LOC 0011Z 239DEG 40KT 4625 9359
$$
BPHThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 5:45 PM CDT | Tornado Warning | MPX | Morrison, Todd | 33 min |
| Sep 16, 6:14 PM CDT | Special Weather Statement | MPX | Morrison | 31 min |
| Sep 16, 6:25 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 35 min |
| Sep 16, 6:26 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 49 min |
| Sep 16, 6:30 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Swift | 45 min |
| Sep 16, 6:32 PM CDT | Special Weather Statement | MPX | Stearns | 43 min |
| Sep 16, 6:40 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Renville, Yellow Medicine | 35 min |
| Sep 16, 6:48 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 42 min |
Nearby
Tornado Warnings in Minnesota, 2021Every tornado warning in 2021Tornadoes in 2021
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.