Alert archive / Minnesota / Special Weather Statements in 2016

Special Weather Statement, NWS Twin Cities, MN

August 4, 2016Chisago County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 4, 2016, 8:35 AM CDT for Chisago County, Minnesota. It was in force for 25 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: Aug 4, 2016, 8:35 AM CDT (13:35 UTC)
Expired: Aug 4, 2016, 9:00 AM CDT
In force: 25 min
Issued by: NWS Twin Cities, MN

County Chisago County, MN

The radar

The Minneapolis radar (KMPX), 79 km from the middle of the area, began a volume at 13:38 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, 1.6 hours before the alert went out and 81 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1323 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

As transmitted.

169 
WWUS83 KMPX 041335
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
835 AM CDT THU AUG 4 2016

MNZ053-061-063-WIZ014-041400-
ANOKA-CHISAGO-WASHINGTON-POLK-
835 AM CDT THU AUG 4 2016

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WASHINGTON...EASTERN
ANOKA...SOUTHEASTERN CHISAGO AND SOUTH CENTRAL POLK COUNTIES...

AT 834 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER FOREST
LAKE...OR
23 MILES NORTH OF ST. PAUL...MOVING NORTHEAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
FOREST LAKE...HUGO...CHISAGO
CITY...LINDSTROM...SCANDIA...OSCEOLA...ST.
CROIX FALLS...STACY...TAYLORS FALLS...DRESSER...CENTER CITY AND
WYOMING.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 129 AND 141.
 U.S. HIGHWAY 8 IN MINNESOTA BETWEEN MILE MARKERS 0 AND 5...AND
BETWEEN MILE MARKERS 7 AND 22.
 U.S. HIGHWAY 61 BETWEEN MILE MARKERS 156 AND 164.

LAT...LON 4527 9241 4520 9262 4521 9276 4519 9277
      4517 9275 4516 9276 4512 9288 4533 9313
      4553 9281
TIME...MOT...LOC 1334Z 243DEG 43KT 4526 9293 

$$

SPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 1:37 AM CDT	Special Weather Statement	MPX	Douglas, Pope, Stevens	53 min
Aug 4, 2:08 AM CDT	Special Weather Statement	MPX	Todd	67 min
Aug 4, 2:33 AM CDT	Special Weather Statement	MPX	Morrison	57 min
Aug 4, 2:40 AM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	50 min
Aug 4, 3:23 AM CDT	Special Weather Statement	MPX	Mille Lacs	52 min
Aug 4, 3:46 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	44 min
Aug 4, 5:18 AM CDT	Special Weather Statement	MPX	Yellow Medicine	42 min
Aug 4, 5:34 AM CDT	Special Weather Statement	MPX	Wright	41 min
Aug 4, 5:49 AM CDT	Special Weather Statement	MPX	Yellow Medicine	56 min
Aug 4, 6:02 AM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Wright	28 min
Aug 4, 6:10 AM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville, Yellow Medicine	50 min
Aug 4, 6:52 AM CDT	Special Weather Statement	MPX	Carver, Hennepin, Ramsey, Washington	53 min
Aug 4, 7:31 AM CDT	Special Weather Statement	MPX	Carver, Dakota, Hennepin, Le Sueur, Ramsey, Rice and 2 more	59 min
Aug 4, 7:52 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Wright	26 min
Aug 4, 8:18 AM CDT	Special Weather Statement	MPX	Anoka	27 min
Aug 4, 12:53 PM CDT	Severe Thunderstorm Warning	MPX	Steele	22 min
Aug 4, 9:01 AM CDT	Special Weather Statement	MPX	Pierce	29 min
Aug 4, 9:22 AM CDT	Special Weather Statement	MPX	Pepin	23 min

Nearby

Special Weather Statements in Minnesota, 2016 Every special weather statement in 2016

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.