Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 62, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 14, 2020, 7:22 AM CDT for Dakota County, Washington County, Minnesota. It was in force for 38 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
- Jul 14, 2020, 7:22 AM CDT (12:22 UTC)
- Expired
- Jul 14, 2020, 8:00 AM CDT
- In force
- 38 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Dakota County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 58 km from the middle of the area, began a volume at 12:22 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 14, 7:33 AM CDT | HAIL 1 | 3 E Vermillion, MN | |
| Jul 14, 7:38 AM CDT | HAIL 1 | Hastings, MN | TIME ESTIMATED FROM 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, 0.4 hours before the alert went out and 61 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
- 1202 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -88 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -2.9
The text
As transmitted.
215
WUUS53 KMPX 141222
SVRMPX
MNC037-163-141300-
/O.NEW.KMPX.SV.W.0062.200714T1222Z-200714T1300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
722 AM CDT Tue Jul 14 2020
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Dakota County in east central Minnesota...
Southeastern Washington County in east central Minnesota...
* Until 800 AM CDT.
* At 721 AM CDT, a severe thunderstorm was located near Farmington,
or 14 miles northeast of Northfield, moving east at 30 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Cottage Grove, Hastings, Rosemount, Prescott, Hampton, Vermillion,
New Trier, Afton State Park and Point Douglas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in The Twin Cities.
&&
LAT...LON 4457 9306 4465 9313 4487 9278 4482 9277
4475 9281 4472 9274 4463 9273 4463 9279
4462 9280
TIME...MOT...LOC 1221Z 247DEG 25KT 4464 9305
HAIL...1.25IN
WIND...<50MPH
$$
JPC2 follow-up statements
275
WWUS53 KMPX 141247
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
747 AM CDT Tue Jul 14 2020
MNC163-141255-
/O.CAN.KMPX.SV.W.0062.000000T0000Z-200714T1300Z/
Washington MN-
747 AM CDT Tue Jul 14 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the severe thunderstorm warning for
southeastern Washington county has been cancelled.
LAT...LON 4472 9286 4475 9285 4475 9282 4472 9275
4471 9274 4463 9273
TIME...MOT...LOC 1245Z 245DEG 28KT 4473 9277
$$
MNC037-141300-
/O.CON.KMPX.SV.W.0062.000000T0000Z-200714T1300Z/
Dakota MN-
747 AM CDT Tue Jul 14 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 AM CDT
FOR EAST CENTRAL DAKOTA COUNTY...
At 745 AM CDT, a severe thunderstorm was located over Prescott, or 11
miles southwest of River Falls, moving northeast at 35 mph.
HAZARD...Half dollar size hail.
SOURCE...Trained weather spotters. At 733 AM CDT, 1 inch hail was
reported near Vermillion.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Hastings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.
Continuous cloud to ground lightning is occurring with this storm.
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 4472 9286 4475 9285 4475 9282 4472 9275
4471 9274 4463 9273
TIME...MOT...LOC 1245Z 245DEG 28KT 4473 9277
HAIL...1.25IN
WIND...<50MPH
$$
JPC046
WWUS53 KMPX 141250
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
750 AM CDT Tue Jul 14 2020
MNC037-141300-
/O.EXP.KMPX.SV.W.0062.000000T0000Z-200714T1300Z/
Dakota MN-
750 AM CDT Tue Jul 14 2020
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DAKOTA COUNTY
WILL EXPIRE AT 800 AM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However small hail
is still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
The Twin Cities.
LAT...LON 4472 9286 4475 9285 4475 9282 4472 9275
4471 9274 4463 9273
TIME...MOT...LOC 1250Z 247DEG 25KT 4474 9274
$$
JPCThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 9:39 PM CDT | Special Weather Statement | MPX | Todd | 51 min |
| Jul 13, 9:50 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 40 min |
| Jul 13, 10:26 PM CDT | Severe Thunderstorm Warning | MPX | Morrison, Todd | 52 min |
| Jul 13, 11:34 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Morrison | 41 min |
| Jul 14, 12:04 AM CDT | Tornado Warning | MPX | Kanabec, Mille Lacs | 26 min |
| Jul 14, 6:16 AM CDT | Special Weather Statement | MPX | Faribault, Freeborn | 44 min |
| Jul 14, 7:04 AM CDT | Special Weather Statement | MPX | Steele | 41 min |
| Jul 14, 7:18 AM CDT | Special Weather Statement | MPX | Dakota | 42 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.