Alert archive / Minnesota / Special Weather Statements in 2013

Special Weather Statement, NWS Duluth, MN

July 18, 2013Lake County, Minnesota

NWS Duluth, MN issued this special weather statement at Jul 18, 2013, 1:21 PM CDT for Lake County, Minnesota. It was in force for 24 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: Jul 18, 2013, 1:21 PM CDT (18:21 UTC)
Expired: Jul 18, 2013, 1:45 PM CDT
In force: 24 min
Issued by: NWS Duluth, MN

County Lake County, MN

The radar

The Duluth radar (KDLH), 129 km from the middle of the area, began a volume at 18:24 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.4 hours before the alert went out and 448 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: 802 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1214 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.4

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 Duluth, MN wrote its last area forecast discussion before this special weather statement went out at Jul 18, 1:04 PM CDT, 17 minutes earlier.

Area forecast discussion, Jul 18, 1:04 PM CDT, 17 minutes before

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Hazardous weather outlook, Jul 18, 12:30 PM CDT, 51 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE DULUTH MN
1230 PM CDT THU JUL 18 2013

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-191030-
KOOCHICHING-NORTHERN ST. LOUIS-NORTHERN COOK/NORTHERN LAKE-
NORTHERN ITASCA-CENTRAL ST. LOUIS-SOUTHERN LAKE/LAKESHORE-
SOUTHERN COOK/LAKESHORE-NORTHERN CASS-SOUTHERN ITASCA-
SOUTHERN CASS-CROW WING-NORTHERN AITKIN-SOUTHERN AITKIN-
CARLTON/SOUTHERN ST. LOUIS-PINE-DOUGLAS-BAYFIELD-ASHLAND-IRON-
BURNETT-WASHBURN-SAWYER-PRICE-
1230 PM CDT THU JUL 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA AND
NORTHWEST WISCONSIN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

WIDESPREAD SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS
AFTERNOON...ROUGHLY BETWEEN 3 PM AND 5 PM...ACROSS NORTH CENTRAL AND
NORTHWEST MINNESOTA...AND MOVE RAPIDLY EAST-SOUTHEASTWARD ACROSS
MUCH OF NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN THROUGH THIS
EVENING.  WIDESPREAD DAMAGING WINDS WILL BE THE PRIMARY THREAT WITH
THESE STORMS...ALTHOUGH A FEW OF THE STRONGEST STORMS COULD ALSO
PRODUCE GOLF BALL SIZE HAIL. WIND GUSTS UP TO 75 MPH WILL BE
POSSIBLE WITH THE LINE OF STORMS AS IT MOVE ACROSS MUCH OF THE
REGION THIS EVENING.  IN ADDITION...LOCALLY HEAVY RAINFALL IS ALSO
POSSIBLE AS VERY MOIST AIR CONTRIBUTES TO HIGH RAINFALL RATES.
PLEASE MONITOR THE LATEST FORECAST FOR POTENTIAL SEVERE THUNDERSTORM
WATCHES AND WARNINGS THAT MAY BE ISSUED LATER THIS AFTERNOON AND
TONIGHT.

HEAT INDICES WILL REACH THE MID 90S THIS AFTERNOON ALONG A
CORRIDOR FROM BRAINERD TO HINCKLEY TO PHILLIPS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS ARE POSSIBLE EARLY FRIDAY OVER NORTHWEST WISCONSIN.

THERE IS ALSO A SLIGHT CHANCE OF THUNDERSTORMS LATE SATURDAY SOUTH OF
THE TWIN PORTS....AND OVER MOST OF THE NORTHLAND SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL BE REQUIRED LATER THIS AFTERNOON AND
INTO TONIGHT.

LSZ121-140>148-191030-
BAYFIELD TO OAK POINT WI-GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN-
DULUTH MN TO PORT WING WI-PORT WING TO SAND ISLAND WI-SAND ISLAND TO
BAYFIELD WI-OAK POINT TO SAXON HARBOR WI-
1230 PM CDT THU JUL 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF
WESTERN LAKE SUPERIOR.

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO REDEVELOP OVER MUCH
OF WESTERN LAKE SUPERIOR LATE THIS AFTERNOON AND OVERNIGHT. NEARLY
CONTINUOUS LIGHTNING...STRONG WINDS...LOCALLY HIGHER WAVE HEIGHTS UP
TO 8 FEET AND LARGE HAIL ARE ALL POSSIBLE BETWEEN ROUGHLY 5 PM AND
MIDNIGHT.  ANY MARINERS WITH PLANS TO VENTURE OUT ON LAKE SUPERIOR
THIS AFTERNOON OR EVENING SHOULD STAY CURRENT WITH THE LATEST
WEATHER INFORMATION AND HAVE A PLAN TO REACH SAFE HARBOR QUICKLY AND
ON SHORT NOTICE.  MARINERS IN SMALL CRAFT MAY WANT TO CONSIDER
DELAYING OR CHANGING PLANS TO VENTURE OUT ALTOGETHER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED THUNDERSTORMS ARE EXPECTED FRIDAY MORNING.

ISOLATED THUNDERSTORMS MAY DEVELOP SUNDAY.

 MILLER

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB ADDRESS:
HTTP://WWW.WEATHER.GOV/DULUTH (ALL LOWER CASE)

In the hours before

Local storm report, Jul 18, 11:05 AM CDT, 2 hours 16 minutes before

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Special weather statement, Jul 18, 11:10 AM CDT, 2 hours 11 minutes before

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Special weather statement, Jul 18, 12:50 PM CDT, 31 minutes before

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Special weather statement, Jul 18, 1:04 PM CDT, 17 minutes before

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Special weather statement, Jul 18, 1:09 PM CDT, 12 minutes before

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Special weather statement, Jul 18, 1:21 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 7:15 PM CDT	Special Weather Statement	DLH	Lake	30 min
Jul 17, 8:36 PM CDT	Special Weather Statement	DLH	Itasca	39 min
Jul 17, 8:46 PM CDT	Special Weather Statement	DLH	Lake	29 min
Jul 18, 12:33 AM CDT	Special Weather Statement	DLH	Cook	27 min
Jul 18, 7:11 AM CDT	Areal Flood Advisory	DLH	Koochiching, Saint Louis	4 hr
Jul 18, 8:50 AM CDT	Special Weather Statement	DLH		25 min
Jul 18, 9:19 AM CDT	Special Weather Statement	DLH		16 min
Jul 18, 9:37 AM CDT	Special Weather Statement	DLH		18 min
Jul 18, 9:54 AM CDT	Severe Thunderstorm Warning	DLH	Lake, Saint Louis	21 min
Jul 18, 10:47 AM CDT	Special Weather Statement	DLH		18 min
Jul 18, 11:10 AM CDT	Special Weather Statement	DLH	Cook	20 min
Jul 18, 12:50 PM CDT	Special Weather Statement	DLH		25 min
Jul 18, 1:04 PM CDT	Special Weather Statement	DLH		26 min
Jul 18, 1:09 PM CDT	Special Weather Statement	DLH	Lake	21 min
Jul 18, 1:26 PM CDT	Severe Thunderstorm Warning	DLH	Lake	49 min
Jul 18, 1:55 PM CDT	Special Weather Statement	DLH	Cook	20 min
Jul 18, 2:00 PM CDT	Special Weather Statement	DLH	Lake	15 min
Jul 18, 2:07 PM CDT	Special Marine Warning	DLH		53 min
Jul 18, 2:28 PM CDT	Special Weather Statement	DLH	Cook	22 min
Jul 18, 2:36 PM CDT	Severe Thunderstorm Warning	DLH	Cook, Lake	24 min
Jul 18, 2:54 PM CDT	Special Marine Warning	DLH		51 min
Jul 18, 3:06 PM CDT	Special Weather Statement	DLH	Lake	24 min
Jul 18, 3:45 PM CDT	Special Marine Warning	DLH		30 min
Jul 18, 4:26 PM CDT	Special Weather Statement	DLH	Lake	4 min
Jul 18, 4:41 PM CDT	Special Weather Statement	DLH	Koochiching	19 min
Jul 18, 4:52 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching, Saint Louis	23 min
Jul 18, 4:57 PM CDT	Special Weather Statement	DLH	Koochiching	18 min
Jul 18, 4:59 PM CDT	Special Weather Statement	DLH		16 min
Jul 18, 5:06 PM CDT	Special Weather Statement	DLH	Koochiching	24 min
Jul 18, 5:11 PM CDT	Special Marine Warning	DLH		49 min
Jul 18, 5:14 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching, Saint Louis	46 min
Jul 18, 5:22 PM CDT	Special Weather Statement	DLH		8 min
Jul 18, 5:34 PM CDT	Severe Thunderstorm Warning	DLH	Lake, Saint Louis	41 min
Jul 18, 5:52 PM CDT	Special Weather Statement	DLH	Cook	23 min
Jul 18, 5:59 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching, Saint Louis	46 min
Jul 18, 6:07 PM CDT	Special Weather Statement	DLH		23 min
Jul 18, 6:14 PM CDT	Special Weather Statement	DLH	Koochiching	16 min
Jul 18, 6:24 PM CDT	Severe Thunderstorm Warning	DLH	Cook, Lake	51 min
Jul 18, 6:44 PM CDT	Special Weather Statement	DLH	Saint Louis	16 min
Jul 18, 6:49 PM CDT	Special Weather Statement	DLH	Cook	26 min
Jul 18, 6:58 PM CDT	Special Weather Statement	DLH	Saint Louis	17 min

Nearby

Special Weather Statements in Minnesota, 2013 Every special weather statement in 2013

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.