Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 96, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 26, 2021, 2:14 PM CDT for Anoka County, Hennepin County, Ramsey County, Minnesota. It was in force for 46 min. 4 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
- Aug 26, 2021, 2:14 PM CDT (19:14 UTC)
- Expired
- Aug 26, 2021, 3:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Anoka County, MN, Hennepin County, MN, Ramsey County, MN
The radar
The Minneapolis radar (KMPX), 35 km from the middle of the area, began a volume at 19:13 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 |
|---|---|---|---|
| Aug 26, 2:17 PM CDT | TSTM WND DMG | 1 Ene Eden Prairie, MN | REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF. |
| Aug 26, 2:20 PM CDT | TSTM WND GST 63 | 1 Ene Eden Prairie, MN | |
| Aug 26, 2:28 PM CDT | TSTM WND DMG | Richfield, MN | LARGE TREE UPROOTED IN EASTERN RICHFIELD, PICTURE VIA TWITTER. |
| Aug 26, 2:49 PM CDT | TSTM WND GST 49 | 1 Sw Brooklyn Center, MN | ASOS STATION KMIC CRYSTAL AP. |
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, 7.2 hours before the alert went out and 38 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
- 1566 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
682
WUUS53 KMPX 261914
SVRMPX
MNC003-053-123-262000-
/O.NEW.KMPX.SV.W.0096.210826T1914Z-210826T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
214 PM CDT Thu Aug 26 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Hennepin County in east central Minnesota...
Southeastern Anoka County in east central Minnesota...
Ramsey County in east central Minnesota...
* Until 300 PM CDT.
* At 213 PM CDT, severe thunderstorms were located along a line
extending from Plymouth to Hopkins to Edina, moving northeast at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Minneapolis, St. Paul, Bloomington, Brooklyn Park, Plymouth, Eden
Prairie, Blaine, Minnetonka, Edina, St. Louis Park, Maplewood and
Richfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4518 9314 4507 9303 4497 9298 4494 9299
4491 9311 4492 9313 4491 9314 4483 9342
4498 9354
TIME...MOT...LOC 1913Z 225DEG 30KT 4500 9348 4492 9340 4487 9336
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
PEM/BPH2 follow-up statements
879
WWUS53 KMPX 261937
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
237 PM CDT Thu Aug 26 2021
MNC003-053-123-262000-
/O.CON.KMPX.SV.W.0096.000000T0000Z-210826T2000Z/
Hennepin MN-Anoka MN-Ramsey MN-
237 PM CDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR SOUTHEASTERN HENNEPIN...SOUTHEASTERN ANOKA AND RAMSEY COUNTIES...
At 237 PM CDT, severe thunderstorms were located along a line
extending from Mounds View to Roseville to near St. Paul, moving
northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Minneapolis, St. Paul, Brooklyn Park, Plymouth, Blaine, Edina, St.
Louis Park, Maplewood, Richfield, Roseville, Brooklyn Center and
Oakdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4486 9330 4504 9342 4518 9314 4507 9303
4497 9298 4494 9299 4491 9311 4492 9313
4491 9314
TIME...MOT...LOC 1937Z 244DEG 33KT 4510 9320 4502 9312 4497 9308
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
PEM551
WWUS53 KMPX 261950
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
250 PM CDT Thu Aug 26 2021
MNC003-053-123-262000-
/O.EXP.KMPX.SV.W.0096.000000T0000Z-210826T2000Z/
Hennepin MN-Anoka MN-Ramsey MN-
250 PM CDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HENNEPIN...
SOUTHEASTERN ANOKA AND RAMSEY COUNTIES WILL EXPIRE AT 300 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds and heavy rain are still
possible with these thunderstorms.
LAT...LON 4486 9330 4504 9342 4518 9314 4507 9303
4497 9298 4494 9299 4491 9311 4492 9313
4491 9314
TIME...MOT...LOC 1950Z 225DEG 30KT 4518 9309 4510 9301 4505 9297
$$
PEMThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 10:39 AM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 51 min |
| Aug 26, 10:54 AM CDT | Special Weather Statement | MPX | Stevens | 36 min |
| Aug 26, 11:05 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 40 min |
| Aug 26, 11:32 AM CDT | Special Weather Statement | MPX | Chippewa | 28 min |
| Aug 26, 11:37 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Swift | 23 min |
| Aug 26, 12:08 PM CDT | Special Weather Statement | MPX | Kandiyohi, Meeker | 22 min |
| Aug 26, 12:22 PM CDT | Special Weather Statement | MPX | Renville | 23 min |
| Aug 26, 12:25 PM CDT | Wind Advisory | MPX | Benton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker and 9 more | 3 hr |
| Aug 26, 12:52 PM CDT | Special Weather Statement | MPX | McLeod | 23 min |
| Aug 26, 1:15 PM CDT | Special Weather Statement | MPX | Carver | 30 min |
| Aug 26, 1:44 PM CDT | Special Weather Statement | MPX | Carver, Hennepin | 31 min |
| Aug 26, 1:47 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 28 min |
| Aug 26, 2:05 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey, Scott, Washington | 40 min |
| Aug 26, 2:44 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 46 min |
| Aug 26, 2:51 PM CDT | Special Weather Statement | MPX | Washington | 24 min |
| Aug 26, 5:44 PM CDT | Flash Flood Watch | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Dakota and 22 more | 13 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2021Every severe thunderstorm warning in 2021
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.