Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 31, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2015, 4:37 PM CDT for Freeborn County, Minnesota. It was in force for 53 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
- Jun 17, 2015, 4:37 PM CDT (21:37 UTC)
- Expired
- Jun 17, 2015, 5:30 PM CDT
- In force
- 53 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 129 km from the middle of the area, began a volume at 21:37 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 |
|---|---|---|---|
| Jun 17, 4:39 PM CDT | HAIL 1.75 | Clarks Grove, MN | PICTURE OF GOLF BALL SIZED HAIL RELAYED BY LOCAL MEDIA. |
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, 9.6 hours before the alert went out and 129 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
- 3208 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
526
WUUS53 KMPX 172137
SVRMPX
MNC047-172230-
/O.NEW.KMPX.SV.W.0031.150617T2137Z-150617T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
437 PM CDT WED JUN 17 2015
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL 530 PM CDT
* AT 437 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CLARKS
GROVE...OR NEAR ALBERT LEA...MOVING EAST 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.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
HOLLANDALE AND HAYWARD AROUND 455 PM CDT.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 35 BETWEEN MILE MARKERS 14 AND 19.
INTERSTATE 90 BETWEEN MILE MARKERS 160 AND 173.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4372 9343 4378 9341 4376 9305 4358 9305
TIME...MOT...LOC 2137Z 284DEG 17KT 4374 9333
HAIL...1.00IN
WIND...60MPH
$$
JRB4 follow-up statements
971 WWUS53 KMPX 172145 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 445 PM CDT WED JUN 17 2015 MNC047-172230- /O.CON.KMPX.SV.W.0031.000000T0000Z-150617T2230Z/ FREEBORN MN- 445 PM CDT WED JUN 17 2015 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR NORTHEASTERN FREEBORN COUNTY... AT 443 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLARKS GROVE...OR NEAR ALBERT LEA...MOVING EAST AT 20 MPH. HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...BLINDING RAIN ALONG I-35 BETWEEN MILE MARKERS 14 AND 19. HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO ROOFS...SIDING AND TREES. THIS SEVERE STORM WILL BE NEAR... HOLLANDALE AND HAYWARD AROUND 455 PM CDT. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 35 BETWEEN MILE MARKERS 14 AND 19. INTERSTATE 90 BETWEEN MILE MARKERS 160 AND 173. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO AREAS OF FLOODING...ESPECIALLY ON I-35 BETWEEN MILE MARKERS 14 AND 19. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4371 9340 4378 9338 4376 9305 4358 9305 TIME...MOT...LOC 2143Z 284DEG 17KT 4373 9329 HAIL...1.00IN WIND...60MPH $$ JRB
325 WWUS53 KMPX 172154 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 454 PM CDT WED JUN 17 2015 MNC047-172230- /O.CON.KMPX.SV.W.0031.000000T0000Z-150617T2230Z/ FREEBORN MN- 454 PM CDT WED JUN 17 2015 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR NORTHEASTERN FREEBORN COUNTY... AT 452 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLARKS GROVE...OR NEAR ALBERT LEA...MOVING EAST AT 15 MPH. HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. SOURCE...PUBLIC. IMPACT...BLINDING RAIN ALONG I-35 BETWEEN MILE MARKERS 14 AND 19. HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO ROOFS...SIDING AND TREES. THIS SEVERE STORM WILL BE NEAR... HOLLANDALE AND HAYWARD AROUND 505 PM CDT. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 35 BETWEEN MILE MARKERS 14 AND 19. INTERSTATE 90 BETWEEN MILE MARKERS 160 AND 173. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4370 9337 4378 9334 4376 9305 4358 9305 TIME...MOT...LOC 2152Z 289DEG 13KT 4372 9328 HAIL...1.00IN WIND...60MPH $$ JRB
839 WWUS53 KMPX 172206 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 506 PM CDT WED JUN 17 2015 MNC047-172230- /O.CON.KMPX.SV.W.0031.000000T0000Z-150617T2230Z/ FREEBORN MN- 506 PM CDT WED JUN 17 2015 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR EAST CENTRAL FREEBORN COUNTY... AT 505 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HOLLANDALE... OR 9 MILES NORTHEAST OF ALBERT LEA...MOVING EAST AT 20 MPH. HAZARD...60 MPH WIND GUSTS...TORRENTIAL RAINFALL...AND NICKEL SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF EAST CENTRAL FREEBORN COUNTY. THIS INCLUDES INTERSTATE 90 BETWEEN MILE MARKERS 162 AND 173. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO AREAS OF FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4367 9329 4374 9326 4373 9305 4358 9306 TIME...MOT...LOC 2205Z 284DEG 17KT 4371 9320 HAIL...0.88IN WIND...60MPH $$ JRB
228
WWUS53 KMPX 172220
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
520 PM CDT WED JUN 17 2015
MNC047-172230-
/O.EXP.KMPX.SV.W.0031.000000T0000Z-150617T2230Z/
FREEBORN MN-
520 PM CDT WED JUN 17 2015
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL FREEBORN COUNTY
WILL EXPIRE AT 530 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4367 9329 4374 9326 4373 9305 4358 9306
TIME...MOT...LOC 2219Z 284DEG 17KT 4371 9320
$$
JRBThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 1:15 PM CDT | Special Weather Statement | MPX | Steele | 45 min |
| Jun 17, 2:13 PM CDT | Special Weather Statement | MPX | Waseca | 47 min |
| Jun 17, 2:30 PM CDT | Tornado Warning | MPX | Waseca | 30 min |
| Jun 17, 2:38 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 67 min |
| Jun 17, 3:22 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 38 min |
| Jun 17, 4:23 PM CDT | Special Weather Statement | MPX | Freeborn | 22 min |
| Jun 17, 4:50 PM CDT | Special Weather Statement | MPX | Freeborn | 25 min |
| Jun 17, 5:19 PM CDT | Special Weather Statement | MPX | Freeborn | 56 min |
| Jun 17, 5:56 PM CDT | Flash Flood Warning | MPX | Freeborn | 3 hr |
| Jun 17, 6:07 PM CDT | Special Weather Statement | MPX | Freeborn | 53 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2015Every severe thunderstorm warning in 2015
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.