Alert archive / Minnesota / Tornado Warnings in 2017
Tornado Warning 31, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Jul 25, 2017, 7:46 PM CDT for Carver County, Hennepin County, Scott County, Minnesota. It was in force for 29 min. 1 report 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 25, 2017, 7:46 PM CDT (00:46 UTC)
- Expired
- Jul 25, 2017, 8:15 PM CDT
- In force
- 29 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Carver County, MN, Hennepin County, MN, Scott County, MN
The radar
The Minneapolis radar (KMPX), 8 km from the middle of the area, began a volume at 00:51 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 25, 7:53 PM CDT | HAIL 1.75 | Eden Prairie, MN |
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 |
|---|---|---|---|
| Jul 25, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 10 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
- 2582 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 938 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 3.3
- Supercell composite
- 18.4
The text
As transmitted.
025
WFUS53 KMPX 260046
TORMPX
MNC019-053-139-260115-
/O.NEW.KMPX.TO.W.0031.170726T0046Z-170726T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
746 PM CDT TUE JUL 25 2017
The National Weather Service in The Twin Cities has issued a
* Tornado Warning for...
South central Hennepin County in east central Minnesota...
Northeastern Scott County in east central Minnesota...
Eastern Carver County in east central Minnesota...
* Until 815 PM CDT
* At 746 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Chanhassen, or 15 miles southwest of Minneapolis,
moving east at 15 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.
* This dangerous storm will be near...
Eden Prairie around 800 PM CDT.
Shakopee around 805 PM CDT.
Savage around 815 PM CDT.
Other locations impacted by this tornadic thunderstorm include Flying
Cloud Airport.
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 4481 9360 4488 9356 4483 9330 4474 9336
TIME...MOT...LOC 0046Z 285DEG 13KT 4484 9353
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$2 follow-up statements
499
WWUS53 KMPX 260103
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
803 PM CDT TUE JUL 25 2017
MNC019-260112-
/O.CAN.KMPX.TO.W.0031.000000T0000Z-170726T0115Z/
Carver MN-
803 PM CDT TUE JUL 25 2017
...THE TORNADO WARNING FOR EASTERN CARVER COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
However, heavy rain will continue through 815 PM
A severe thunderstorm watch remains in effect until 1100 PM CDT for
east central Minnesota.
LAT...LON 4479 9352 4487 9349 4483 9330 4474 9336
TIME...MOT...LOC 0102Z 285DEG 13KT 4482 9345
$$
MNC053-139-260115-
/O.CON.KMPX.TO.W.0031.000000T0000Z-170726T0115Z/
Hennepin MN-Scott MN-
803 PM CDT TUE JUL 25 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR SOUTH
CENTRAL HENNEPIN AND NORTHEASTERN SCOTT COUNTIES...
At 802 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Flying Cloud Airport, or 13 miles southwest of
Minneapolis, moving east at 15 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.
This dangerous storm will be near...
Savage around 815 PM CDT.
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 4479 9352 4487 9349 4483 9330 4474 9336
TIME...MOT...LOC 0102Z 285DEG 13KT 4482 9345
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$765
WWUS53 KMPX 260114
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
814 PM CDT TUE JUL 25 2017
MNC053-139-260124-
/O.EXP.KMPX.TO.W.0031.000000T0000Z-170726T0115Z/
Hennepin MN-Scott MN-
814 PM CDT TUE JUL 25 2017
...THE TORNADO WARNING FOR SOUTH CENTRAL HENNEPIN AND NORTHEASTERN
SCOTT COUNTIES WILL EXPIRE AT 815 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
A severe thunderstorm watch remains in effect until 1100 PM CDT for
east central Minnesota.
LAT...LON 4479 9352 4487 9349 4483 9330 4474 9336
TIME...MOT...LOC 0114Z 285DEG 13KT 4481 9340
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 8:17 PM CDT | Special Weather Statement | MPX | Dakota | 43 min |
| Jul 25, 8:38 PM CDT | Special Weather Statement | MPX | Benton | 52 min |
| Jul 25, 9:00 PM CDT | Special Weather Statement | MPX | Douglas | 45 min |
| Jul 25, 9:19 PM CDT | Special Weather Statement | MPX | Mille Lacs | 26 min |
| Jul 25, 9:28 PM CDT | Special Weather Statement | MPX | Todd | 32 min |
| Jul 25, 9:56 PM CDT | Special Weather Statement | MPX | Morrison | 34 min |
| Jul 26, 3:56 AM CDT | Special Weather Statement | MPX | Hennepin, Ramsey | 34 min |
| Jul 26, 4:20 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Washington | 25 min |
Nearby
Tornado Warnings in Minnesota, 2017Every tornado warning in 2017Tornadoes in 2017
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.