Alert archive / Minnesota / Special Weather Statements in 2017

Special Weather Statement, NWS Twin Cities, MN

May 28, 2017Chisago County, Isanti County, Minnesota

NWS Twin Cities, MN issued this special weather statement at May 28, 2017, 4:13 PM CDT for Chisago County, Isanti County, Minnesota. It was in force for 47 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 28, 2017, 4:13 PM CDT (21:13 UTC)
Expired
May 28, 2017, 5:00 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN

Counties Chisago County, MN, Isanti County, MN

The radar

The Minneapolis radar (KMPX), 97 km from the middle of the area, began a volume at 21:16 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

Minneapolis, MN (KMPX), launched 12:00Z, 9.2 hours before the alert went out and 98 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 12:00Z on 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.19395878Sfc1 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
1182 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

860 
WWUS83 KMPX 282113
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
413 PM CDT SUN MAY 28 2017

MNZ052-053-WIZ014-282200-
Isanti-Chisago-Polk-
413 PM CDT SUN MAY 28 2017

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CHISAGO...EASTERN ISANTI
AND NORTHWESTERN POLK COUNTIES...

At 412 PM CDT, a strong thunderstorm was located near Grandy, or 7
miles northeast of Cambridge, moving east at 40 mph.

Wind gusts up to 50 mph are possible with this storm.

Locations impacted include...
Cambridge, North Branch, Isanti, Lindstrom, Taylors Falls, Wild 
River State Park, Cambridge Airport, and Wolf Creek.

This includes Interstate 35 between mile markers 143 and 158.
 
LAT...LON 4566 9288 4564 9288 4564 9260 4546 9262
      4540 9270 4547 9338 4569 9322
TIME...MOT...LOC 2112Z 278DEG 35KT 4560 9311 

$$

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 4:23 PM CDTSpecial Weather StatementMPXRamsey22 min
May 28, 5:47 PM CDTSpecial Weather StatementMPXChippewa, Douglas, Kandiyohi, Pope, Renville58 min
May 28, 6:07 PM CDTSpecial Weather StatementMPXKanabec53 min
May 28, 6:24 PM CDTSpecial Weather StatementMPXCarver36 min
May 28, 6:31 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd29 min
May 28, 6:49 PM CDTSpecial Weather StatementMPXBenton, Stearns41 min
May 28, 6:52 PM CDTSpecial Weather StatementMPXBrown, McLeod, Meeker, Nicollet, Sibley38 min

Nearby

Special Weather Statements in Minnesota, 2017Every special weather statement in 2017

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.