Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 105, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 2026, 4:37 PM CDT for Chisago County, Minnesota; Polk County, Wisconsin. It was in force for 53 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
- Jun 19, 2026, 4:37 PM CDT (21:37 UTC)
- Expired
- Jun 19, 2026, 5:30 PM CDT
- In force
- 53 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Chisago County, MN, Polk County, WI
The radar
The Minneapolis radar (KMPX), 106 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 19, 5:06 PM CDT | HAIL 1 | 3 Se Rush City, MN | |
| Jun 19, 5:21 PM CDT | HAIL 1 | 8 Wnw Milltown, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 29 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 2:01 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.6 hours before the alert went out and 108 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
- 1251 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
241
WUUS53 KMPX 192137
SVRMPX
MNC025-WIC095-192230-
/O.NEW.KMPX.SV.W.0105.260619T2137Z-260619T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
437 PM CDT Fri Jun 19 2026
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northern Chisago County in east central Minnesota...
Northwestern Polk County in northwestern Wisconsin...
* Until 530 PM CDT.
* At 437 PM CDT, a severe thunderstorm was located 7 miles south of
Grasston, or 11 miles north of Cambridge, moving southeast at 35
mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Rush City, Rush City Airport, Harris, Chengwatana State Forest,
Wild River State Park, Wolf Creek, Cushing, Taylors Falls and St.
Croix Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
&&
LAT...LON 4564 9263 4568 9252 4538 9266 4561 9314
4573 9314 4573 9285 4572 9285 4572 9287
4564 9289
TIME...MOT...LOC 2136Z 293DEG 29KT 4569 9318
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
TDH2 follow-up statements
351
WWUS53 KMPX 192214
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
514 PM CDT Fri Jun 19 2026
MNC025-WIC095-192230-
/O.CON.KMPX.SV.W.0105.000000T0000Z-260619T2230Z/
Chisago MN-Polk WI-
514 PM CDT Fri Jun 19 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
CENTRAL CHISAGO AND NORTHWESTERN POLK COUNTIES...
At 514 PM CDT, a severe thunderstorm was located 12 miles north of
Center City, or 23 miles east of Cambridge, moving southeast at 35
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Harris, Wild River State Park, Wolf Creek, Cushing, Taylors Falls
and St. Croix Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
&&
LAT...LON 4564 9263 4566 9253 4568 9252 4538 9266
4561 9314 4566 9314 4567 9288 4564 9289
TIME...MOT...LOC 2137Z 293DEG 29KT 4569 9316
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
TDH087
WWUS53 KMPX 192231
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
531 PM CDT Fri Jun 19 2026
MNC025-WIC095-192241-
/O.EXP.KMPX.SV.W.0105.000000T0000Z-260619T2230Z/
Chisago MN-Polk WI-
531 PM CDT Fri Jun 19 2026
...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR CENTRAL CHISAGO AND
NORTHWESTERN POLK COUNTIES...
The Severe Thunderstorm Warning that was previously in effect has
been reissued for Polk and Chisago Counties and is in effect until
615 PM CDT. Please refer to that bulletin for the latest severe
weather information.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
portions of east central Minnesota and northwest Wisconsin.
&&
LAT...LON 4564 9263 4566 9253 4568 9252 4538 9266
4561 9314 4566 9314 4567 9288 4564 9289
TIME...MOT...LOC 2214Z 293DEG 29KT 4557 9276
$$
TDHWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Twin Cities, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 19, 1:39 PM CDT, 2 hours 58 minutes earlier. Its key messages:
- Scattered thunderstorms this afternoon & evening. The strongest storms could contain large hail & gusty winds, especially along & north of Interstate 94.
- Seasonable cool & dry this weekend.
- Below normal temperatures continue next week. Rain chances return mid-week.
Area forecast discussion, Jun 19, 1:39 PM CDT, 2 hours 58 minutes before
Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 139 PM CDT Fri Jun 19 2026 .KEY MESSAGES... - Scattered thunderstorms this afternoon & evening. The strongest storms could contain large hail & gusty winds, especially along & north of Interstate 94. - Seasonable cool & dry this weekend. - Below normal temperatures continue next week. Rain chances return mid-week. && .DISCUSSION... Issued at 116 PM CDT Fri Jun 19 2026 Light rain showers are exiting the area across western Minnesota while another band of light rain is moving across the I-90 corridor across far-southern Minnesota. However, our area of interest this afternoon will be with the building cumulus field across northwest & west-central Minnesota. Instability isn't going to be great after the rain & clouds this morning, but very steep mid-level lapse rates mean than surface-based CAPE of 500-1000 J/kg should develop this afternoon & allow for these budding showers to build into scattered thunderstorms by mid- afternoon. Impressive wind shear for mid-June will be in place over the area as a jetstreak over the Upper Midwest provides around 60 kts of 0-6km shear across MN & WI. However the weaker instability means that any thunderstorms probably wont be able to realize all of this deep shear, so effective shear values look to be on the order of 30-40 kts across central MN & western WI where we expect the most widespread storm coverage. This still plenty of shear for storms to become organized, so we are expecting a few strong to severe thunderstorms later this afternoon with large hail the primary threat followed by sporadic damaging wind gusts. The main window for these severe thunderstorms looks to be between 3 PM to 7 PM, with the Storm Prediction Center highlighting an area along the I-94 Corridor of eastern MN & western WI with a Level 2/5 (Slight Risk) threat of severe storms. The storms will begin to weaken as we get closer to sunset, with the thunderstorms threat mostly over with across western Wisconsin by 8-9 PM. Weak high pressure moves into the region behind today's system, setting up a seasonably cool & dry weekend with highs generally in the low to mid 70s expected. Can't rule out a coupe, isolated rain showers across western Wisconsin from the cumulus field Saturday afternoon, but better chances for light rain look to come Sunday morning across far-southern Minnesota. However, the main threat for rain looks to set up to our south over Iowa. Looking into next week: zonal flow aloft should extend the quiet weekend weather into Monday, but building troughing over the Great Lakes brings an increased chance for rain Tuesday into Wednesday. This mainly looks to be another system with widespread rain showers & a few isolated thunderstorms, & the threat for any severe weather or heavy rain is low. Northwest flow persists through the week in response to the troughing over the Great Lakes & building ridging over the west, which will keep temperatures seasonably cool through the week. Models hint at various transient disturbances embedded within the northwest flow that could lead to low chances for precipitation later in the week, but mostly quiet weather looks to be the forecast until next weekend. && .AVIATION /18Z TAFS THROUGH 00Z SUNDAY/... Issued at 1235 PM CDT Fri Jun 19 2026 VFR conditions through most of the period. However, another round of scattered showers and storms expected late this afternoon and evening where reductions in flight categories will be possible if TSRA impact terminals. TEMPO groups remain in the TAF for MSP, AXN, STC, RNH, and EAU for TSRA. Main impacts will be gusty winds, reductions to VIS due to moderate to heavy rainfall, lowing CIGs, and lightning. Winds will increase through the afternoon out of the W/NW at 10-15 knots with gusts to 20 knots, terminals across western MN could see gusts to 25 knots during the afternoon and early evening. Shower/storms activity will quickly decrease after 01z this evening will skies becoming SKC by 02z to 03z with winds becoming light at 3-7 knots, out of the NW. KMSP...Scattered showers and storms possible late this afternoon and evening. TEMPO group remains in the TAF for -TSRA. If TSRA impacts terminals, reductions in flight categories will be likely. Shower and storm activity will diminish after 01Z. Winds this afternoon will be out of the W at 9-13 knots with gusts to 20 knots possible, becoming NW late this evening at 5-10 knots. Skies will become SKC to FEW around sunset. /OUTLOOK FOR KMSP/ SUN... VFR. Wind ENE at 5-10 kts. MON... VFR. Wind NE at 5-10 kts. TUE... VFR. Chc of MVFR/TSRA. Wind SSW at 5-10 kts. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && DISCUSSION...ETA AVIATION...LPR
Hazardous weather outlook, Jun 19, 3:00 AM CDT, 13 hours 37 minutes before
Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 300 AM CDT Fri Jun 19 2026 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 200800- Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington- Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota- Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk- St. Croix-Pierce-Dunn-Pepin-Eau Claire- 300 AM CDT Fri Jun 19 2026 This Hazardous Weather Outlook is for portions of central and southern Minnesota, and west central Wisconsin. .DAY ONE...Today and Tonight. Scattered thunderstorms will develop this afternoon, most numerous across central and eastern Minnesota and western Wisconsin. There is a level 1 out of 5 risk for severe thunderstorms capable of marginally severe hail and gusty winds into the early evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation may be needed. Borghoff
In the hours before
Local storm report, Jun 19, 4:22 PM CDT, 15 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
422 PM CDT Fri Jun 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0415 PM Hail Rush City 45.68N 92.96W
06/19/2026 M1.00 Inch Chisago MN Trained Spotter
&&
BEDSpecial weather statement, Jun 19, 4:22 PM CDT, 15 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
422 PM CDT Fri Jun 19 2026
MNZ060-061-192215-
Hennepin MN-Anoka MN-
422 PM CDT Fri Jun 19 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHERN HENNEPIN AND SOUTH
CENTRAL ANOKA COUNTIES UNTIL 515 PM CDT...
At 422 PM CDT, Doppler radar was tracking a strong thunderstorm near
Corcoran, or 11 miles east of Buffalo, moving east at 30 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Minneapolis, Brooklyn Park, Plymouth, Maple Grove, Coon Rapids,
Blaine, Brooklyn Center, Fridley, Champlin, Golden Valley, Columbia
Heights, Rogers, St. Anthony, Spring Lake Park, Corcoran, Medina
and Rockford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 4521 9364 4515 9320 4512 9320 4512 9323
4504 9323 4503 9321 4497 9321 4508 9375
4509 9373 4511 9372 4515 9368 4516 9364
4517 9364 4519 9366
TIME...MOT...LOC 2122Z 280DEG 25KT 4514 9364
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
TDHSpecial weather statement, Jun 19, 4:23 PM CDT, 14 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
423 PM CDT Fri Jun 19 2026
MNZ051>053-061-192215-
Anoka MN-Chisago MN-Isanti MN-Sherburne MN-
423 PM CDT Fri Jun 19 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN ISANTI...NORTHERN
ANOKA...SOUTH CENTRAL CHISAGO AND EAST CENTRAL SHERBURNE COUNTIES
UNTIL 515 PM CDT...
At 423 PM CDT, Doppler radar was tracking a strong thunderstorm near
Elk River, or 19 miles southwest of Cambridge, moving east at 40 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Cambridge, Elk River, Ham Lake, East Bethel, St. Francis,
Zimmerman, Stacy, Oak Grove, Wyoming, Nowthen, Athens, Bethel,
Cedar and Weber.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 4534 9367 4548 9365 4549 9297 4530 9299
4530 9302 4525 9302
TIME...MOT...LOC 2123Z 271DEG 35KT 4539 9356
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
TDHLocal storm report, Jun 19, 4:32 PM CDT, 5 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
432 PM CDT Fri Jun 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0415 PM Hail 1 WNW Grasston 45.80N 93.17W
06/19/2026 M1.00 Inch Kanabec MN Trained Spotter
&&
BEDLocal storm report, Jun 19, 4:33 PM CDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
433 PM CDT Fri Jun 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0420 PM Hail Hanover 45.16N 93.67W
06/19/2026 M0.88 Inch Wright MN Trained Spotter
&&
BEDLocal storm report, Jun 19, 4:37 PM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
437 PM CDT Fri Jun 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0417 PM Hail 5 NE Day 45.75N 93.29W
06/19/2026 M0.88 Inch Kanabec MN Trained Spotter
&&
BEDThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 1:59 PM CDT | Special Weather Statement | MPX | Morrison | 46 min |
| Jun 19, 2:25 PM CDT | Special Weather Statement | MPX | Mille Lacs | 50 min |
| Jun 19, 2:46 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Morrison | 44 min |
| Jun 19, 3:18 PM CDT | Special Weather Statement | MPX | Morrison | 42 min |
| Jun 19, 3:23 PM CDT | Special Weather Statement | MPX | Kanabec | 37 min |
| Jun 19, 3:25 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs | 65 min |
| Jun 19, 3:32 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 43 min |
| Jun 19, 3:39 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti, Kanabec | 51 min |
| Jun 19, 3:52 PM CDT | Special Weather Statement | MPX | Wright | 38 min |
| Jun 19, 4:13 PM CDT | Tornado Warning | MPX | Isanti, Kanabec | 32 min |
| Jun 19, 4:16 PM CDT | Special Weather Statement | MPX | Benton | 44 min |
| Jun 19, 4:19 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 40 min |
| Jun 19, 4:22 PM CDT | Special Weather Statement | MPX | Hennepin | 53 min |
| Jun 19, 4:23 PM CDT | Special Weather Statement | MPX | Anoka | 52 min |
| Jun 19, 4:39 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Dakota, Hennepin, Ramsey | 49 min |
| Jun 19, 4:43 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs | 22 min |
| Jun 19, 4:45 PM CDT | Tornado Warning | MPX | Chisago | 45 min |
| Jun 19, 5:09 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti, Sherburne | 14 min |
| Jun 19, 5:28 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey, Washington | 47 min |
| Jun 19, 5:30 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 45 min |
| Jun 19, 5:49 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 56 min |
| Jun 19, 6:09 PM CDT | Special Weather Statement | MPX | Carver, Dakota, Hennepin, Le Sueur, McLeod, Ramsey and 3 more | 66 min |
| Jun 19, 5:37 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 53 min |
| Jun 19, 5:44 PM CDT | Special Weather Statement | MPX | Rusk | 61 min |
| Jun 19, 6:06 PM CDT | Special Weather Statement | MPX | Pierce | 54 min |
| Jun 19, 6:11 PM CDT | Severe Thunderstorm Warning | MPX | Pierce, Saint Croix | 34 min |
| Jun 19, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Saint Croix | 41 min |
| Jun 19, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 31 min |
| Jun 19, 6:30 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire | 15 min |
| Jun 19, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 46 min |
| Jun 19, 6:46 PM CDT | Special Weather Statement | MPX | Dunn | 44 min |
| Jun 19, 6:49 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pepin, Pierce | 41 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2026Severe Thunderstorm Warnings in Wisconsin, 2026Every severe thunderstorm warning in 2026
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.