Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 3, NWS Twin Cities, MN

May 18, 2013Douglas County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 18, 2013, 6:59 PM CDT for Douglas County, Minnesota. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 18, 2013, 6:59 PM CDT (23:59 UTC)
Expired
May 18, 2013, 8:00 PM CDT
In force
61 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 199 km from the middle of the area, began a volume at 00:00 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.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 12.0 hours before the alert went out and 256 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, Aberdeen, SD at 12:00Z on 2013-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 120 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, Aberdeen, SD at 12:00Z on 2013-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
120 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
186 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.

959 
WUUS53 KMPX 182359
SVRMPX
MNC041-190100-
/O.NEW.KMPX.SV.W.0003.130518T2359Z-130519T0100Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 800 PM CDT

* AT 700 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES NORTHWEST
  OF ALEXANDRIA...AND MOVING NORTHEAST AT 15 MPH.

  HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
           DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  BRANDON...GARFIELD...MILLERVILLE...LEAF VALLEY AND MILTONA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...SUCH AS IN AN
INTERIOR ROOM...A BATHROOM OR CLOSET...OR BASEMENT.

&&

LAT...LON 4611 9558 4610 9517 4579 9552 4588 9574
TIME...MOT...LOC 0000Z 212DEG 12KT 4593 9554

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

$$

LRS
2 follow-up statements
136 
WWUS53 KMPX 190010
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
710 PM CDT SAT MAY 18 2013

MNC041-190100-
/O.CON.KMPX.SV.W.0003.000000T0000Z-130519T0100Z/
DOUGLAS MN-
710 PM CDT SAT MAY 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DOUGLAS COUNTY
UNTIL 800 PM CDT...

AT 706 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES WEST OF
ALEXANDRIA...AND MOVING NORTHEAST AT 10 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
         DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
GARFIELD...MILLERVILLE...LEAF VALLEY...MILTONA...AND THE INTERSTATE 
94 NORTHWEST OF ALEXANDRIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...SUCH AS IN AN
INTERIOR ROOM...A BATHROOM OR CLOSET...OR BASEMENT.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4611 9558 4610 9517 4579 9552 4588 9574
TIME...MOT...LOC 0009Z 223DEG 8KT 4592 9553

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

$$

LRS
763 
WWUS53 KMPX 190040
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
740 PM CDT SAT MAY 18 2013

MNC041-190049-
/O.CAN.KMPX.SV.W.0003.000000T0000Z-130519T0100Z/
DOUGLAS MN-
740 PM CDT SAT MAY 18 2013

...THE SEVERE THUNDERSTORM WARNING FOR DOUGLAS COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM. DUE 
TO THE EXESSIVE AMOUNT OF PRECIPITATION THAT HAS OCCURRED OVER THE 
LAST 24 HOURS...THIS ADDITIONAL RAINFALL WILL LEAD TO PONDING OF 
WATER ON AREA ROADWAYS.

LAT...LON 4611 9558 4610 9517 4579 9552 4588 9574
TIME...MOT...LOC 0039Z 223DEG 8KT 4597 9546

$$

LRS

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, 1:40 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd50 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

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.