Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 83, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 8, 2020, 2:03 PM CDT for 6 counties in Minnesota. It was in force for 42 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
- Aug 8, 2020, 2:03 PM CDT (19:03 UTC)
- Expired
- Aug 8, 2020, 2:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Chippewa County, MN, Kandiyohi County, MN, Meeker County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 19:04 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 |
|---|---|---|---|
| Aug 8, 2:15 PM CDT | TSTM WND DMG | Sacred Heart, MN | SEVERAL TREES WERE BLOWN DOWN BETWEEN GRANITE FALLS AND SACRED HEART. POWER LINES WERE ALSO BLOWN DOWN IN THE CITY OF SACRED HEART. |
| Aug 8, 2:20 PM CDT | TSTM WND DMG | Renville, MN | LARGE TREE FELL ON A HOUSE IN RENVILLE. EARLIER REPORT FROM SOCIAL MEDIA PICTURE. TIME ESTIMATED BY RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.1 hours before the alert went out and 114 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
- 1441 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 250 m²/s²
- 0-3 km storm-relative helicity
- 273 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
736
WUUS53 KMPX 081903
SVRMPX
MNC023-067-093-127-129-143-081945-
/O.NEW.KMPX.SV.W.0083.200808T1903Z-200808T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
203 PM CDT Sat Aug 8 2020
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southwestern Meeker County in central Minnesota...
Southeastern Chippewa County in west central Minnesota...
Northeastern Redwood County in southwestern Minnesota...
Western Sibley County in central Minnesota...
Renville County in central Minnesota...
Southern Kandiyohi County in central Minnesota...
* Until 245 PM CDT.
* At 203 PM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Maynard to 6 miles northeast of
Morton to near Franklin, moving east at 55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Redwood Falls, Granite Falls, Olivia, Clara City, Renville,
Fairfax, Hector, Bird Island, Gibbon, Raymond, Buffalo Lake and
Stewart.
This includes the following highways...
U.S. Highway 212 between mile markers 51 and 102.
U.S. Highway 71 between mile markers 74 and 116.
This includes Jackpot Junction Casino.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4505 9568 4500 9454 4492 9449 4461 9449
4445 9457 4446 9480 4449 9482 4449 9486
4444 9487 4444 9505 4456 9517 4468 9537
4470 9536 4477 9550
TIME...MOT...LOC 1903Z 269DEG 46KT 4500 9551 4463 9491 4448 9494
HAIL...<.75IN
WIND...70MPH
$$
ETAThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 12:12 PM CDT | Special Weather Statement | MPX | Lac qui Parle | 48 min |
| Aug 8, 12:38 PM CDT | Special Weather Statement | MPX | Yellow Medicine | 37 min |
| Aug 8, 12:45 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 45 min |
| Aug 8, 1:14 PM CDT | Severe Thunderstorm Warning | MPX | Redwood, Yellow Medicine | 46 min |
| Aug 8, 1:37 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Renville, Yellow Medicine | 23 min |
| Aug 8, 2:14 PM CDT | Special Weather Statement | MPX | Brown, Watonwan | 46 min |
| Aug 8, 2:28 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Meeker, Nicollet, Sibley | 47 min |
| Aug 8, 2:48 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Renville, Sibley, Wright | 27 min |
| Aug 8, 3:13 PM CDT | Special Weather Statement | MPX | Carver, Hennepin, McLeod, Meeker, Wright | 47 min |
| Aug 8, 3:17 PM CDT | Special Weather Statement | MPX | Blue Earth, Le Sueur, Rice, Scott, Waseca | 58 min |
| Aug 8, 4:11 PM CDT | Special Weather Statement | MPX | Rice, Steele, Waseca | 49 min |
| Aug 8, 4:28 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Steele, Waseca | 47 min |
| Aug 8, 4:58 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue, Rice, Steele | 36 min |
| Aug 8, 5:25 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 35 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2020Every severe thunderstorm warning in 2020
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.