Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 9, NWS Twin Cities, MN

May 24, 20185 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 24, 2018, 7:10 PM CDT for 5 counties in Minnesota. It was in force for 50 min. 9 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
May 24, 2018, 7:10 PM CDT (00:10 UTC)
Expired
May 24, 2018, 8:00 PM CDT
In force
50 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Anoka County, MN, Dakota County, MN, Hennepin County, MN, Ramsey County, MN, Scott County, MN

The radar

The Minneapolis radar (KMPX), 29 km from the middle of the area, began a volume at 00:10 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 24, 7:10 PM CDTTSTM WND DMG2 Ne Savage, MNTREES DOWN ALONG HIGHWAY 13.
May 24, 7:15 PM CDTTSTM WND DMGMaple Grove, MNTREES DOWN. TIME ESTIMATED.
May 24, 7:29 PM CDTTSTM WND GST 50Minneapolis St. Paul Ai, MN
May 24, 7:30 PM CDTTSTM WND DMG4 N Richfield, MNTREE LIMBS DOWN NEAR 40TH AND NICOLLET IN SOUTH MINNEAPOLIS.
May 24, 7:38 PM CDTTSTM WND GST 61Minneapolis St. Paul Ai, MN
May 24, 7:40 PM CDTTSTM WND GST 532 Sw Eden Prairie, MN
May 24, 7:44 PM CDTHAIL 12 Se Minneapolis, MN1 INCH HAIL CEDAR RIVERSIDE NEIGHBORHOOD.
May 24, 7:45 PM CDTTSTM WND DMG2 Nw Burnsville, MNSEVERAL TREES UPROOTED, AT LEAST SIX POWER POLES DOWN ON THE NORTH SIDE OF HIGHWAY 13, NEAR WASHBURN AVE.
May 24, 7:45 PM CDTTSTM WND GST 562 Ese St. Paul, MNAT KSTP.

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, 0.2 hours before the alert went out and 31 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 00:00Z on 2018-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 553 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2018-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
553 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1989 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

450 
WUUS53 KMPX 250010
SVRMPX
MNC003-037-053-123-139-250100-
/O.NEW.KMPX.SV.W.0009.180525T0010Z-180525T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
710 PM CDT THU MAY 24 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Eastern Hennepin County in east central Minnesota...
  Northwestern Dakota County in east central Minnesota...
  Northeastern Scott County in east central Minnesota...
  Southeastern Anoka County in east central Minnesota...
  Ramsey County in east central Minnesota...

* Until 800 PM CDT

* At 709 PM CDT, severe thunderstorms were located along a line
  extending from near Corcoran to Eden Prairie to near Helena, moving
  east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Law enforcement has reported widespread wind damage 
           across Carver county. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Severe thunderstorms will be near,
  Savage, Prior Lake and Hopkins around 715 PM CDT. 
  Burnsville, Minnetonka and Edina around 720 PM CDT. 
  Brooklyn Park, St. Louis Park, Richfield, Brooklyn Center and MSP 
  International Airport around 725 PM CDT. 
  Minneapolis, Bloomington, Lakeville, Apple Valley and Golden 
  Valley around 730 PM CDT. 

Other locations impacted by these severe thunderstorms include
Medicine Lake, Robbinsdale, Hilltop, North St. Paul, Lilydale, Flying
Cloud Airport, Circle Pines, Sunfish, Lexington and St Paul Airport.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4464 9356 4483 9349 4515 9355 4515 9302
      4513 9302 4512 9298 4489 9299 4489 9302
      4477 9301 4458 9308
TIME...MOT...LOC 0009Z 274DEG 28KT 4510 9354 4484 9344 4464 9350 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
808 
WWUS53 KMPX 250038
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
738 PM CDT THU MAY 24 2018

MNC139-250047-
/O.CAN.KMPX.SV.W.0009.000000T0000Z-180525T0100Z/
Scott MN-
738 PM CDT THU MAY 24 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SCOTT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4464 9331 4479 9333 4515 9344 4515 9302
      4512 9302 4512 9298 4489 9299 4489 9302
      4477 9301 4458 9308
TIME...MOT...LOC 0037Z 267DEG 31KT 4513 9318 4487 9308 4467 9314 

$$

MNC003-037-053-123-250100-
/O.CON.KMPX.SV.W.0009.000000T0000Z-180525T0100Z/
Hennepin MN-Dakota MN-Anoka MN-Ramsey MN-
738 PM CDT THU MAY 24 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR EASTERN HENNEPIN...NORTHWESTERN DAKOTA...SOUTHEASTERN ANOKA AND
RAMSEY COUNTIES...

At 737 PM CDT, severe thunderstorms were located along a line
extending from Lexington to Sunfish to near Farmington, moving east
at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Trained Spotter. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

These severe storms will be near...
  Cottage Grove around 745 PM CDT. 
  Maplewood around 750 PM CDT. 
  White Bear Lake and Mahtomedi around 755 PM CDT. 

Other locations impacted by these severe thunderstorms include
Robbinsdale, Hilltop, North St. Paul, Lilydale, Circle Pines,
Sunfish, Lexington, St Paul Airport, Sunfish Lake and North
Minneapolis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4464 9331 4479 9333 4515 9344 4515 9302
      4512 9302 4512 9298 4489 9299 4489 9302
      4477 9301 4458 9308
TIME...MOT...LOC 0037Z 267DEG 31KT 4513 9318 4487 9308 4467 9314 

HAIL...1.00IN
WIND...60MPH
 
$$
833 
WWUS53 KMPX 250052
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
752 PM CDT THU MAY 24 2018

MNC003-037-053-123-250101-
/O.EXP.KMPX.SV.W.0009.000000T0000Z-180525T0100Z/
Hennepin MN-Dakota MN-Anoka MN-Ramsey MN-
752 PM CDT THU MAY 24 2018

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HENNEPIN...
NORTHWESTERN DAKOTA...SOUTHEASTERN ANOKA AND RAMSEY COUNTIES WILL
EXPIRE AT 800 PM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.  However gusty 
winds and heavy rain are still possible with these thunderstorms 
over eastern Hennepin county and Ramsey county.

LAT...LON 4464 9331 4479 9333 4515 9344 4515 9302
      4512 9302 4512 9298 4489 9299 4489 9302
      4477 9301 4458 9308
TIME...MOT...LOC 0051Z 274DEG 28KT 4512 9304 4486 9294 4466 9300 

$$

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, 7:27 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, 3:12 PM CDTSevere Thunderstorm WarningMPXFreeborn48 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.