Alert archive / Minnesota / Special Weather Statements in 2014

Special Weather Statement, NWS Twin Cities, MN

August 18, 2014Freeborn County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 18, 2014, 12:36 AM CDT for Freeborn County, Minnesota. It was in force for 54 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 18, 2014, 12:36 AM CDT (05:36 UTC)
Expired: Aug 18, 2014, 1:30 AM CDT
In force: 54 min
Issued by: NWS Twin Cities, MN

County Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 129 km from the middle of the area, began a volume at 05:40 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 00:00Z, 5.6 hours before the alert went out and 130 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: 748 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 83 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, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at Aug 17, 11:17 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Aug 17, 11:17 PM CDT, 1 hour 19 minutes before

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Hazardous weather outlook, Aug 17, 10:15 PM CDT, 2 hours 21 minutes before

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In the hours before

Local storm report, Aug 17, 7:14 PM CDT, 5 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
714 PM CDT SUN AUG 17 2014

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0645 PM     FLOOD            4 S MIESVILLE           44.54N 92.80W
08/17/2014                   DAKOTA             MN   LAW ENFORCEMENT

            COUNTY DISPATCH REPORTED INTERSECTIONS UNDER
            WATER.

&&

NWS TWIN CITIES/CHANHASSEN MN
IRIS SYSTEM

Local storm report, Aug 17, 8:16 PM CDT, 4 hours 20 minutes before

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Local storm report, Aug 17, 9:55 PM CDT, 2 hours 41 minutes before

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Special weather statement, Aug 18, 12:36 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1236 AM CDT MON AUG 18 2014

MNZ085-093-180630-
FREEBORN-STEELE-
1236 AM CDT MON AUG 18 2014

...STRONG THUNDERSTORMS MOVING OVER FREEBORN AND STEELE COUNTIES
THROUGH 130 AM CDT...

AT 1229 AM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTH OF ALBERT LEA
TO 11 MILES SOUTHWEST OF NORTHWOOD. THESE STORMS WERE MOVING
NORTHEAST AT 15 MPH.

PEA SIZE HAIL...WINDS UP TO 30 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ALBERT LEA.
  CLARKS GROVE.
  MYRE BIG ISLAND STATE PARK.
  GLENVILLE.
  HAYWARD.
  GENEVA.
  HOLLANDALE.
  BIXBY.
  INTERSTATE 35 FROM THE IOWA BORDER TO EXIT 22.
  INTERSTATE 90 FROM EXIT 154 TO EXIT 175.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

VERY HEAVY RAIN IS OCCURRING WITH THIS LINE OF STORMS. PONDING OF
WATER ON ROADS AND FILLING OF ROADSIDE DITCHES AND GULLIES ARE
LIKELY TO OCCUR. MOTORISTS SHOULD USE EXTRA CAUTION AS REDUCED
VISIBILITY AND HYDROPLANING CAN OCCUR.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 4379 9341 4399 9304 4399 9303 4350 9304
      4349 9305 4349 9340
TIME...MOT...LOC 0532Z 239DEG 13KT 4375 9332 4330 9330

JPC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 1:32 AM CDT	Dense Fog Advisory	MPX	Benton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker and 9 more	7 hr
Aug 18, 6:29 AM CDT	Special Weather Statement	MPX	Todd	46 min
Aug 18, 4:42 PM CDT	Special Weather Statement	MPX	Pope	63 min
Aug 18, 6:07 PM CDT	Special Weather Statement	MPX	Martin	38 min
Aug 18, 6:32 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	28 min
Aug 18, 6:35 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Waseca	40 min
Aug 18, 6:56 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	34 min
Aug 18, 11:49 AM CDT	Special Weather Statement	MPX	Polk	41 min
Aug 18, 12:38 PM CDT	Special Weather Statement	MPX	Barron	52 min
Aug 18, 12:57 PM CDT	Special Weather Statement	MPX	Dunn	33 min
Aug 18, 1:14 PM CDT	Special Weather Statement	MPX	Dunn	31 min
Aug 18, 1:43 PM CDT	Special Weather Statement	MPX	Dunn	32 min
Aug 18, 2:00 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	30 min
Aug 18, 2:37 PM CDT	Special Weather Statement	MPX	Pepin	53 min

Nearby

Special Weather Statements in Minnesota, 2014 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.