Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 121, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 24, 2018, 3:37 PM CDT for Blue Earth County, Waseca County, Minnesota. It was in force for 53 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
- Aug 24, 2018, 3:37 PM CDT (20:37 UTC)
- Expired
- Aug 24, 2018, 4:30 PM CDT
- In force
- 53 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Blue Earth County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 105 km from the middle of the area, began a volume at 20:38 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, 8.6 hours before the alert went out and 105 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
- 107 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
510
WUUS53 KMPX 242037
SVRMPX
MNC013-161-242130-
/O.NEW.KMPX.SV.W.0121.180824T2037Z-180824T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
337 PM CDT FRI AUG 24 2018
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Blue Earth County in south central Minnesota...
Southern Waseca County in south central Minnesota...
* Until 430 PM CDT.
* At 337 PM CDT, a severe thunderstorm was located near Waldorf, or
22 miles southeast of Mankato, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Waseca, New Richland, Waldorf and Otisco.
This includes U.S. Highway 14 between mile markers 158 and 159.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4385 9386 4392 9386 4408 9352 4385 9347
TIME...MOT...LOC 2037Z 247DEG 16KT 4389 9374
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
449
WWUS53 KMPX 242101
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
401 PM CDT FRI AUG 24 2018
MNC013-242110-
/O.CAN.KMPX.SV.W.0121.000000T0000Z-180824T2130Z/
Blue Earth MN-
401 PM CDT FRI AUG 24 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BLUE EARTH COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4395 9377 4403 9351 4385 9346 4385 9377
TIME...MOT...LOC 2100Z 267DEG 13KT 4389 9367
$$
MNC161-242130-
/O.CON.KMPX.SV.W.0121.000000T0000Z-180824T2130Z/
Waseca MN-
401 PM CDT FRI AUG 24 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN WASECA COUNTY...
At 400 PM CDT, a severe thunderstorm was located near Waldorf, or 22
miles northwest of Albert Lea, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
New Richland, Waldorf and Otisco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4395 9377 4403 9351 4385 9346 4385 9377
TIME...MOT...LOC 2100Z 267DEG 13KT 4389 9367
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:15 AM CDT | Special Weather Statement | MPX | Hennepin | 45 min |
| Aug 24, 8:59 AM CDT | Special Weather Statement | MPX | Anoka, Hennepin | 46 min |
| Aug 24, 9:45 AM CDT | Special Weather Statement | MPX | Anoka, Hennepin, Ramsey | 30 min |
| Aug 24, 10:37 AM CDT | Special Weather Statement | MPX | Ramsey, Washington | 38 min |
| Aug 24, 12:08 PM CDT | Special Weather Statement | MPX | Goodhue | 37 min |
| Aug 24, 2:12 PM CDT | Special Weather Statement | MPX | Renville | 48 min |
| Aug 24, 3:30 PM CDT | Special Weather Statement | MPX | Waseca | 60 min |
| Aug 24, 3:48 PM CDT | Special Weather Statement | MPX | Renville | 57 min |
| Aug 24, 5:05 PM CDT | Special Weather Statement | MPX | Waseca | 70 min |
| Aug 24, 5:07 PM CDT | Special Weather Statement | MPX | Stearns | 68 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2018Every severe thunderstorm warning in 2018
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.