Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 17, NWS Twin Cities, MN

May 25, 2018Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 25, 2018, 3:12 PM CDT for Freeborn County, Minnesota. It was in force for 48 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
May 25, 2018, 3:12 PM CDT (20:12 UTC)
Expired
May 25, 2018, 4:00 PM CDT
In force
48 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 123 km from the middle of the area, began a volume at 20:11 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

TimeReportWhereRemark
May 25, 3:30 PM CDTHAIL 1.52 N Alden, 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 12:00Z, 8.2 hours before the alert went out and 123 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2018-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 543 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2018-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
543 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
1022 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted.

457 
WUUS53 KMPX 252012
SVRMPX
MNC047-252100-
/O.NEW.KMPX.SV.W.0017.180525T2012Z-180525T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
312 PM CDT FRI MAY 25 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Freeborn County in south central Minnesota...

* Until 400 PM CDT

* At 311 PM CDT, a severe thunderstorm was located over Freeborn, or
  11 miles northwest of Albert Lea, moving southeast at 10 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,
  Hartland around 325 PM CDT. 
  Albert Lea and Clarks Grove around 400 PM CDT. 

Other locations impacted by this severe thunderstorm include
Manchester and Albert Lea Airport.

This includes the following highways...
 Interstate 35 between mile markers 7 and 21.
 Interstate 90 between mile markers 149 and 161.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4372 9365 4380 9365 4385 9356 4378 9322
      4359 9335
TIME...MOT...LOC 2011Z 295DEG 7KT 4375 9356 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

jrb
2 follow-up statements
745 
WWUS53 KMPX 252022
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
322 PM CDT FRI MAY 25 2018

MNC047-252100-
/O.CON.KMPX.SV.W.0017.000000T0000Z-180525T2100Z/
Freeborn MN-
322 PM CDT FRI MAY 25 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR NORTHWESTERN FREEBORN COUNTY...

At 322 PM CDT, a severe thunderstorm was located over Freeborn, or 10
miles northwest of Albert Lea, moving southeast at 10 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 storm will be near...
  Albert Lea and Clarks Grove around 400 PM CDT. 

Other locations impacted by this severe thunderstorm include
Manchester and Albert Lea Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4372 9365 4376 9365 4379 9356 4378 9322
      4359 9335
TIME...MOT...LOC 2022Z 295DEG 7KT 4374 9354 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

jrb
407 
WWUS53 KMPX 252049
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
349 PM CDT FRI MAY 25 2018

MNC047-252100-
/O.CON.KMPX.SV.W.0017.000000T0000Z-180525T2100Z/
Freeborn MN-
349 PM CDT FRI MAY 25 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR CENTRAL FREEBORN COUNTY...

At 348 PM CDT, a severe thunderstorm was located over Manchester, or
near Albert Lea, moving southeast at 10 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 storm will be near...
  Albert Lea around 400 PM CDT. 

Other locations impacted by this severe thunderstorm include
Manchester and Albert Lea Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4369 9359 4375 9350 4375 9327 4359 9335
TIME...MOT...LOC 2048Z 295DEG 7KT 4372 9347 

HAIL...1.00IN
WIND...60MPH
 
$$

jrb

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 7:06 PM CDTSpecial Weather StatementMPXPope39 min
May 24, 7:10 PM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Scott50 min
May 24, 7:27 PM CDTSevere Thunderstorm WarningMPXPope, Stevens33 min
May 24, 7:43 PM CDTSevere Thunderstorm WarningMPXDakota, Washington47 min
May 24, 7:48 PM CDTSevere Thunderstorm WarningMPXRice42 min
May 24, 8:31 PM CDTSpecial Weather StatementMPXGoodhue29 min
May 24, 8:33 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd33 min
May 24, 9:03 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue28 min
May 25, 1:15 AM CDTSpecial Weather StatementMPXSibley30 min
May 25, 2:06 AM CDTSpecial Weather StatementMPXHennepin24 min
May 25, 2:13 AM CDTSpecial Weather StatementMPXSibley32 min
May 25, 7:07 AM CDTSpecial Weather StatementMPXGoodhue23 min
May 25, 1:53 PM CDTSevere Thunderstorm WarningMPXPope37 min
May 25, 2:55 PM CDTSevere Thunderstorm WarningMPXFreeborn50 min
May 25, 3:33 PM CDTSpecial Weather StatementMPXSteele42 min
May 25, 3:38 PM CDTSpecial Weather StatementMPXFreeborn37 min
May 25, 3:47 PM CDTSpecial Weather StatementMPXLac qui Parle28 min
May 25, 4:03 PM CDTSpecial Weather StatementMPXFreeborn42 min
May 25, 4:09 PM CDTSpecial Weather StatementMPXFreeborn36 min
May 25, 4:24 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn36 min
May 25, 4:32 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright43 min
May 25, 5:03 PM CDTSevere Thunderstorm WarningMPXWashington57 min
May 25, 5:17 PM CDTSpecial Weather StatementMPXRamsey, Washington43 min
May 25, 5:35 PM CDTSpecial Weather StatementMPXScott25 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.