Alert archive / Minnesota / Special Weather Statements in 2014

Special Weather Statement, NWS Twin Cities, MN

July 22, 20144 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 22, 2014, 12:11 AM CDT for 4 counties in Minnesota. It was in force for 79 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
Jul 22, 2014, 12:11 AM CDT (05:11 UTC)
Expired
Jul 22, 2014, 1:30 AM CDT
In force
79 min
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 05:14 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
Jul 22, 12:57 AM CDTHAIL 2Ogilvie, 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 00:00Z, 5.2 hours before the alert went out and 134 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 2014-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3298 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 2014-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
3298 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.7

Open this sounding in Storm Lab

The text

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

581 
WWUS83 KMPX 220511
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1211 AM CDT TUE JUL 22 2014

MNZ043>045-049-050-052-220630-
BENTON-ISANTI-KANABEC-MILLE LACS-MORRISON-STEARNS-
1211 AM CDT TUE JUL 22 2014

...THUNDERSTORMS MOVING INTO BENTON...ISANTI...KANABEC...MILLE 
LACS...MORRISON AND STEARNS COUNTIES THROUGH 130 AM CDT...

AT 1209 AM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 13 MILES EAST OF CAMP
RIPLEY TO 14 MILES SOUTHEAST OF LITTLE FALLS TO 10 MILES EAST OF
ALBANY. THESE STORMS WERE MOVING EAST AT 55 MPH.

WINDS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  BUCKMAN.
  HARDING.
  MORRILL.
  MAYHEW.
  VINELAND.
  LAKE MILLE LACS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 4 
AM CDT.

&&

LAT...LON 4624 9342 4616 9341 4616 9306 4597 9309
      4597 9313 4556 9315 4555 9454 4585 9423
      4616 9418 4616 9383 4624 9382 4625 9380
      4626 9353
TIME...MOT...LOC 0511Z 259DEG 48KT 4610 9405 4587 9409
          4560 9434

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 10:13 PM CDTSevere Thunderstorm WarningMPXStevens47 min
Jul 21, 10:33 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope42 min
Jul 21, 11:08 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd67 min
Jul 21, 11:36 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns39 min
Jul 22, 12:47 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs58 min

Nearby

Special Weather Statements in Minnesota, 2014Every special weather statement in 2014

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.