Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 80, NWS Twin Cities, MN

June 30, 2018Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 2018, 12:18 AM CDT for Todd County, Minnesota. It was in force for 42 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
Jun 30, 2018, 12:18 AM CDT (05:18 UTC)
Expired
Jun 30, 2018, 1:00 AM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Todd County, MN

The radar

The Minneapolis radar (KMPX), 192 km from the middle of the area, began a volume at 05:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 29, 11:56 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.3 hours before the alert went out and 190 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 2018-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3333 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 2018-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
3333 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1867 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

425 
WUUS53 KMPX 300518
SVRMPX
MNC153-300600-
/O.NEW.KMPX.SV.W.0080.180630T0518Z-180630T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1218 AM CDT SAT JUN 30 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Todd County in central Minnesota...

* Until 100 AM CDT.

* At 1217 AM CDT, a severe thunderstorm was located over Bertha, or
  29 miles northeast of Alexandria, moving northeast at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Staples, Eagle Bend, Bertha and Hewitt. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4637 9474 4635 9470 4635 9469 4599 9515
      4630 9516 4637 9510
TIME...MOT...LOC 0517Z 215DEG 27KT 4627 9503 

HAIL...1.50IN
WIND...60MPH
 
$$
1 follow-up statement
970 
WWUS53 KMPX 300547
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1247 AM CDT SAT JUN 30 2018

MNC153-300600-
/O.CON.KMPX.SV.W.0080.000000T0000Z-180630T0600Z/
Todd MN-
1247 AM CDT SAT JUN 30 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR NORTHWESTERN TODD COUNTY...

At 1246 AM CDT, a severe thunderstorm was located near Staples, or 
31 miles west of Brainerd, moving northeast at 30 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.

Locations impacted include...
Staples, Staples Airport, Bertha and Hewitt. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4637 9474 4635 9470 4635 9469 4627 9480
      4615 9514 4630 9516 4637 9510
TIME...MOT...LOC 0546Z 215DEG 27KT 4645 9485 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 11:25 PM CDTSpecial Weather StatementMPXTodd50 min
Jun 29, 11:58 PM CDTSevere Thunderstorm WarningMPXTodd47 min
Jun 30, 12:05 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope55 min
Jun 30, 12:43 AM CDTSevere Thunderstorm WarningMPXStearns, Todd47 min
Jun 30, 1:00 AM CDTSpecial Weather StatementMPXMorrison45 min
Jun 30, 1:06 AM CDTSevere Thunderstorm WarningMPXMorrison39 min
Jun 30, 1:29 AM CDTSevere Thunderstorm WarningMPXMorrison, Stearns, Todd46 min
Jun 30, 2:02 AM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Morrison, Stearns43 min
Jun 30, 2:27 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs33 min
Jun 30, 2:51 AM CDTFlash Flood WatchMPXFaribault, Freeborn, Martin18 hr
Jun 30, 2:54 AM CDTHeat AdvisoryMPXGoodhue16 hr
Jun 30, 5:25 PM CDTSpecial Weather StatementMPXFreeborn50 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.