Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 117, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2018, 7:02 PM CDT for Stearns County, Wright County, Minnesota. It was in force for 43 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
- Aug 3, 2018, 7:02 PM CDT (00:02 UTC)
- Expired
- Aug 3, 2018, 7:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Stearns County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 60 km from the middle of the area, began a volume at 00:03 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 3, 7:15 PM CDT | TSTM WND DMG | 3 N South Haven, MN | TREE DOWN ON POWER LINE. |
| Aug 3, 7:35 PM CDT | TSTM WND GST 51 | Clearwater 1se, MN | MESONET STATION MN017, CLEARWATER 1SE. |
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 00:00Z, 0.0 hours before the alert went out and 58 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
- 3195 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1086 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 17.5
The text
As transmitted.
084
WUUS53 KMPX 040002
SVRMPX
MNC145-171-040045-
/O.NEW.KMPX.SV.W.0117.180804T0002Z-180804T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
702 PM CDT FRI AUG 3 2018
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Wright County in central Minnesota...
Southeastern Stearns County in central Minnesota...
* Until 745 PM CDT.
* At 702 PM CDT, severe thunderstorms were located along a line
extending from near Forest City to near Dassel to 7 miles east of
Greenleaf, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Cokato around 715 PM CDT.
Annandale and Howard Lake around 720 PM CDT.
Maple Lake around 725 PM CDT.
Buffalo, Montrose and Clearwater around 730 PM CDT.
Delano around 735 PM CDT.
Monticello and Rockford around 740 PM CDT.
St. Michael and Independence around 745 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4539 9401 4540 9399 4536 9388 4534 9387
4534 9384 4529 9376 4516 9375 4498 9377
4498 9426 4528 9426 4528 9438 4534 9440
4544 9407
TIME...MOT...LOC 0002Z 261DEG 41KT 4526 9444 4517 9432 4499 9436
HAIL...<.75IN
WIND...60MPH
$$
BORGHOFF1 follow-up statement
930
WWUS53 KMPX 040017
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
717 PM CDT FRI AUG 3 2018
MNC145-171-040045-
/O.CON.KMPX.SV.W.0117.000000T0000Z-180804T0045Z/
Wright MN-Stearns MN-
717 PM CDT FRI AUG 3 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR WRIGHT AND SOUTHEASTERN STEARNS COUNTIES...
At 717 PM CDT, severe thunderstorms were located along a line
extending from Fairhaven to Annandale to Smith Lake, moving east at
50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Maple Lake around 725 PM CDT.
Montrose and Clearwater around 730 PM CDT.
Buffalo, Monticello and Delano around 735 PM CDT.
Rockford around 740 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a dangerous storm. Multiple reports of wind damage have been
received. SEEK SHELTER NOW inside a sturdy structure and stay away
from windows.
&&
LAT...LON 4539 9401 4540 9399 4536 9388 4534 9387
4534 9384 4529 9376 4516 9375 4498 9377
4498 9426 4528 9426 4528 9432 4536 9432
4544 9407
TIME...MOT...LOC 0017Z 249DEG 42KT 4533 9422 4524 9410 4507 9414
HAIL...<.75IN
WIND...60MPH
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:33 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Sherburne, Wright | 27 min |
| Aug 3, 7:41 PM CDT | Special Weather Statement | MPX | Renville | 49 min |
| Aug 3, 10:19 PM CDT | Flash Flood Warning | MPX | Benton, Sherburne, Stearns | 3 hr |
| Aug 4, 12:05 AM CDT | Special Weather Statement | MPX | Isanti | 25 min |
| Aug 4, 12:17 AM CDT | Severe Thunderstorm Warning | MPX | Chisago, Washington | 28 min |
| Aug 4, 12:41 AM CDT | Special Weather Statement | MPX | Mille Lacs | 34 min |
| Aug 4, 12:43 AM CDT | Special Weather Statement | MPX | Isanti | 32 min |
| Aug 4, 1:15 AM CDT | Special Weather Statement | MPX | Kanabec | 30 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2018Every severe thunderstorm warning in 2018
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.