Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 126, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 26, 2018, 6:25 AM CDT for Anoka County, Chisago County, Washington County, Minnesota; Polk County, Wisconsin. It was in force for 50 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
- Aug 26, 2018, 6:25 AM CDT (11:25 UTC)
- Expired
- Aug 26, 2018, 7:15 AM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Anoka County, MN, Chisago County, MN, Washington County, MN, Polk County, WI
The radar
The Minneapolis radar (KMPX), 71 km from the middle of the area, began a volume at 11:26 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, 6:32 AM CDT | HAIL 1 | 3 S Chisago City, MN |
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, 11.4 hours before the alert went out and 73 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
- 50 J/kg
- Mixed-layer CIN
- -418 J/kg
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
673 WUUS53 KMPX 261125 SVRMPX MNC003-025-163-WIC095-261215- /O.NEW.KMPX.SV.W.0126.180826T1125Z-180826T1215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Twin Cities/Chanhassen MN 625 AM CDT SUN AUG 26 2018 The National Weather Service in The Twin Cities has issued a * Severe Thunderstorm Warning for... South central Chisago County in east central Minnesota... Northeastern Anoka County in east central Minnesota... Northern Washington County in east central Minnesota... South central Polk County in northwestern Wisconsin... * Until 715 AM CDT. * At 624 AM CDT, a severe thunderstorm was located over Wyoming, or 19 miles southeast of Cambridge, moving east at 45 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Forest Lake, Ham Lake, East Bethel, Chisago City, Scandia, Osceola, Wyoming, Otisville, Osceola Airport, Wanderoos, William OBrien State Park and East Farmington. This includes the following highways... Interstate 35 between mile markers 130 and 135. U.S. Highway 8 in Minnesota between mile markers 0 and 5. U.S. Highway 61 between mile markers 163 and 164. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4522 9318 4534 9315 4533 9242 4521 9243 TIME...MOT...LOC 1124Z 270DEG 38KT 4531 9299 HAIL...1.25IN WIND...<50MPH $$ DWE
2 follow-up statements
537
WWUS53 KMPX 261158
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
658 AM CDT SUN AUG 26 2018
MNC003-025-163-261207-
/O.CAN.KMPX.SV.W.0126.000000T0000Z-180826T1215Z/
Chisago MN-Anoka MN-Washington MN-
658 AM CDT SUN AUG 26 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHISAGO...
NORTHEASTERN ANOKA AND NORTHERN WASHINGTON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4521 9243 4522 9275 4523 9276 4531 9274
4533 9269 4533 9242
TIME...MOT...LOC 1157Z 270DEG 38KT 4531 9248
$$
WIC095-261215-
/O.CON.KMPX.SV.W.0126.000000T0000Z-180826T1215Z/
Polk WI-
658 AM CDT SUN AUG 26 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 AM CDT
FOR SOUTH CENTRAL POLK COUNTY...
At 657 AM CDT, a severe thunderstorm was located over Wanderoos, or
31 miles north of River Falls, moving east at 45 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Osceola, Nye, East Farmington, Wanderoos, Deronda and Osceola
Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 4521 9243 4522 9275 4523 9276 4531 9274
4533 9269 4533 9242
TIME...MOT...LOC 1157Z 270DEG 38KT 4531 9248
HAIL...1.25IN
WIND...<50MPH
$$
DWE581
WWUS53 KMPX 261207
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
707 AM CDT SUN AUG 26 2018
WIC095-261216-
/O.EXP.KMPX.SV.W.0126.000000T0000Z-180826T1215Z/
Polk WI-
707 AM CDT SUN AUG 26 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL POLK COUNTY WILL
EXPIRE AT 715 AM CDT...
The storm which prompted the warning has weakened, and no longer
poses an immediate threat to life or property. Therefore, the
warning will be allowed to expire. However small hail is still
possible with this thunderstorm.
LAT...LON 4521 9243 4522 9275 4523 9276 4531 9274
4533 9269 4533 9242
TIME...MOT...LOC 1206Z 270DEG 38KT 4531 9238
$$
DWEThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:40 AM CDT | Special Weather Statement | MPX | Douglas, Pope, Stevens | 50 min |
| Aug 26, 3:21 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 39 min |
| Aug 26, 4:03 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Chisago, Isanti, Kanabec, Mille Lacs | 57 min |
| Aug 26, 4:56 AM CDT | Special Weather Statement | MPX | Benton, Isanti, Kanabec, Mille Lacs, Sherburne | 64 min |
| Aug 26, 5:20 AM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec, Mille Lacs, Sherburne | 40 min |
| Aug 26, 5:47 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti | 43 min |
| Aug 26, 6:44 AM CDT | Special Weather Statement | MPX | Chisago | 31 min |
| Aug 26, 2:40 PM CDT | Special Weather Statement | MPX | Hennepin | 35 min |
| Aug 26, 7:10 AM CDT | Severe Thunderstorm Warning | MPX | Dunn, Polk, Saint Croix | 50 min |
| Aug 26, 7:28 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Rusk | 62 min |
| Aug 26, 8:23 AM CDT | Special Weather Statement | MPX | Rusk | 52 min |
| Aug 26, 1:36 PM CDT | Special Weather Statement | MPX | Dunn | 39 min |
| Aug 26, 1:53 PM CDT | Special Weather Statement | MPX | Chippewa, Eau Claire | 37 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2018Severe Thunderstorm Warnings in Wisconsin, 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.