Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 2, NWS Twin Cities, MN

May 18, 20134 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 18, 2013, 1:40 AM CDT for 4 counties in Minnesota. It was in force for 50 min. 3 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 18, 2013, 1:40 AM CDT (06:40 UTC)
Expired
May 18, 2013, 2:30 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 Douglas County, MN, Pope County, MN, Stearns County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 154 km from the middle of the area, began a volume at 06:42 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 18, 1:48 AM CDTTSTM WND GST 548 W Sauk Centre, MNSMALL TREE LIMBS AND SMALL TREES DOWN.
May 18, 1:48 AM CDTHAIL 18 W Sauk Centre, MN
May 18, 2:04 AM CDTHAIL 1.511 Nw Sauk Centre, MNBROKEN WINDSHIELD ON TRUCK.

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, 6.7 hours before the alert went out and 152 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 2013-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2013-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

777 
WUUS53 KMPX 180640
SVRMPX
MNC041-121-145-153-180730-
/O.NEW.KMPX.SV.W.0002.130518T0640Z-130518T0730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
140 AM CDT SAT MAY 18 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHEASTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHWESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  SOUTHERN TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 230 AM CDT

* AT 138 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
  LINE EXTENDING FROM 7 MILES NORTHEAST OF GLENWOOD TO 11 MILES EAST
  OF GLENWOOD TO 7 MILES SOUTH OF SAUK CENTRE...AND MOVING NORTHEAST
  AT 20 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES AND CROPS IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  LONG PRAIRIE...SAUK CENTRE...FORADA...WESTPORT...WEST UNION...
  OSAKIS...PLEASANT BEACH...GREY EAGLE...GREY EALGE...NORTH SHORE...
  LITTLE SAUK...BURTRUM AND CLOTHO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4603 9470 4597 9464 4583 9465 4559 9494
      4557 9523 4576 9539 4606 9507
TIME...MOT...LOC 0640Z 222DEG 17KT 4575 9529 4564 9514
          4565 9500

HAIL...1.25IN
WIND...<50MPH

$$

JC
2 follow-up statements
936 
WWUS53 KMPX 180658
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
158 AM CDT SAT MAY 18 2013

MNC041-121-145-153-180730-
/O.CON.KMPX.SV.W.0002.000000T0000Z-130518T0730Z/
DOUGLAS MN-POPE MN-STEARNS MN-TODD MN-
158 AM CDT SAT MAY 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
TODD...NORTHWESTERN STEARNS...NORTHEASTERN POPE AND SOUTHEASTERN
DOUGLAS COUNTIES UNTIL 230 AM CDT...

AT 154 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 9 MILES SOUTHEAST OF ALEXANDRIA TO 6 MILES
SOUTHWEST OF SAUK CENTRE TO SAUK CENTRE...AND MOVING NORTHEAST AT 20
MPH.

HAZARD...HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED. QUARTER SIZE HAIL WAS REPORTED NEAR SAUK 
CENTRE AT 148 AM CDT.

IMPACT...DAMAGE TO VEHICLES AND CROPS IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
LONG PRAIRIE...SAUK CENTRE...WEST UNION...OSAKIS...PLEASANT BEACH...
NORTH SHORE...GREY EAGLE...GREY EALGE...LITTLE SAUK...BURTRUM AND
CLOTHO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4603 9470 4597 9464 4583 9465 4559 9494
      4560 9520 4579 9536 4606 9507
TIME...MOT...LOC 0657Z 222DEG 18KT 4582 9521 4571 9506
          4572 9492

HAIL...1.25IN
WIND...<50MPH

$$

JC
387 
WWUS53 KMPX 180725
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
225 AM CDT SAT MAY 18 2013

MNC041-121-145-153-180735-
/O.EXP.KMPX.SV.W.0002.000000T0000Z-130518T0730Z/
DOUGLAS MN-POPE MN-STEARNS MN-TODD MN-
225 AM CDT SAT MAY 18 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN TODD...NORTHWESTERN
STEARNS...NORTHEASTERN POPE AND SOUTHEASTERN DOUGLAS COUNTIES WILL
EXPIRE AT 230 AM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.  HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH
THESE THUNDERSTORMS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4603 9470 4597 9464 4583 9465 4559 9494
      4560 9520 4579 9536 4606 9507
TIME...MOT...LOC 0725Z 222DEG 18KT 4592 9507 4581 9492
          4582 9478

$$

JC

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 11:24 PM CDTSpecial Weather StatementMPXTodd51 min
May 18, 1:17 AM CDTSpecial Weather StatementMPXPope28 min
May 18, 2:00 AM CDTSpecial Weather StatementMPXDouglas30 min
May 18, 2:34 AM CDTSpecial Weather StatementMPXStearns41 min
May 18, 7:42 AM CDTAreal Flood AdvisoryMPXCarver, Dakota, Hennepin, Wright3 hr
May 18, 9:08 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey37 min
May 18, 2:44 PM CDTFlash Flood WatchMPXAnoka, Benton, Carver, Chisago, Dakota, Douglas and 25 more44 hr
May 18, 6:54 PM CDTSpecial Weather StatementMPXDouglas51 min
May 18, 6:59 PM CDTSevere Thunderstorm WarningMPXDouglas61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2013Every severe thunderstorm warning in 2013

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.