Alert archive / Iowa / Special Weather Statements in 2017

Special Weather Statement, NWS La Crosse, WI

March 6, 2017Crawford County, Wisconsin; Allamakee County, Clayton County, Fayette County, Iowa

NWS La Crosse, WI issued this special weather statement at Mar 6, 2017, 8:16 PM CST for Crawford County, Wisconsin; Allamakee County, Clayton County, Fayette County, Iowa. It was in force for 44 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: Mar 6, 2017, 8:16 PM CST (02:16 UTC)
Expired: Mar 6, 2017, 9:00 PM CST
In force: 44 min
Issued by: NWS La Crosse, WI

Counties Allamakee County, IA, Clayton County, IA, Fayette County, IA, Crawford County, WI

The radar

The La Crosse radar (KARX), 105 km from the middle of the area, began a volume at 02:18 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

Davenport, (KDVN), launched 00:00Z, 2.3 hours before the alert went out and 165 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: 39 J/kg
Mixed-layer CIN: -343 J/kg
Mixed-layer LCL: 1016 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 407 m²/s²
0-3 km storm-relative helicity: 489 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 La Crosse, WI wrote its last area forecast discussion before this special weather statement went out at Mar 6, 8:15 PM CST, 1 minute earlier.

Area forecast discussion, Mar 6, 8:15 PM CST, 1 minute before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Mar 6, 8:16 PM CST, 0 minutes before

Hazardous Weather Outlook
National Weather Service La Crosse WI
816 PM CST Mon Mar 6 2017

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-080230-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Buffalo-
816 PM CST Mon Mar 6 2017

This Hazardous Weather Outlook is for portions of southeast
Minnesota, northeast Iowa, and a portion of west central
Wisconsin.

.DAY ONE...Tonight

A Tornado watch is in effect until 10 pm this evening.

A line of thunderstorms will continue to move through the area
this evening through 10 pm. A few of these storms could be
severe. The main threats will be damaging winds and large hail
with a lower threat for an isolated tornado.

A Wind Advisory is also in effect tonight.

Westerly wind gusts of 40 to 55 mph are expected and will result
in difficult travel, especially on north-south oriented roadways.
Some damage is also possible to trees and power lines.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A Wind Advisory continues through Tuesday.

Gusty west winds of 40 to 55 mph will continue through Tuesday
and
will again result in difficult travel on north-south oriented
roadways and may also cause some damage to trees and power lines.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may still be needed through late this evening.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

WIZ033-034-041>044-053>055-061-080230-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-Grant-
816 PM CST Mon Mar 6 2017

This Hazardous Weather Outlook is for portions southwest into
central Wisconsin.

.DAY ONE...Tonight

Severe Thunderstorm Watch until 2 AM.

Severe thunderstorms are possible through 2 am. Damaging winds
and large hail are the main threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Wind Advisory for Tuesday.

Gusty west winds of 40 to 55 mph through Tuesday will result in
difficult travel on north-south oriented roadways and may also
cause some damage to trees and power lines.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this evening.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

WIZ017-029-080230-
Taylor-Clark-
816 PM CST Mon Mar 6 2017

This Hazardous Weather Outlook is for portions of north central
Wisconsin.

.DAY ONE...Tonight

Strong to severe thunderstorms are possible through midnight.
Damaging winds and large hail are the main threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Wind Advisory for Tuesday.

Gusty west winds of 40 to 55 mph through Tuesday will result in
difficult travel on north-south oriented roadways and may also
cause some damage to trees and power lines.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

DAS

In the hours before

Local storm report, Mar 6, 7:51 PM CST, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
751 PM CST MON MAR 06 2017

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

0743 PM     HAIL             10 W HARMONY            43.56N 92.21W
03/06/2017  E0.50 INCH       FILLMORE           MN   AMATEUR RADIO

0743 PM     TSTM WND GST     10 W HARMONY            43.56N 92.21W
03/06/2017  E45 MPH          FILLMORE           MN   AMATEUR RADIO

&&

CJA

Local storm report, Mar 6, 7:55 PM CST, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
755 PM CST MON MAR 06 2017

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

0747 PM     TSTM WND GST     HARMONY                 43.56N 92.01W
03/06/2017  M56 MPH          FILLMORE           MN   LAW ENFORCEMENT

0747 PM     HAIL             HARMONY                 43.56N 92.01W
03/06/2017  E0.25 INCH       FILLMORE           MN   LAW ENFORCEMENT

            HAIL COVERING GROUND.

&&

CJA

Local storm report, Mar 6, 7:56 PM CST, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
756 PM CST MON MAR 06 2017

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

0725 PM     HAIL             8 S RICEVILLE           43.25N 92.55W
03/06/2017  E1.00 INCH       HOWARD             IA   PUBLIC

&&

CJA

Local storm report, Mar 6, 8:05 PM CST, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
805 PM CST MON MAR 06 2017

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

0744 PM     HAIL             LEWISTON                43.98N 91.87W
03/06/2017  E0.75 INCH       WINONA             MN   LAW ENFORCEMENT

            STRONG WINDS AND TORENTIAL RAIN

&&

TMS

Special weather statement, Mar 6, 8:05 PM CST, 11 minutes before

Special Weather Statement
National Weather Service La Crosse WI
805 PM CST MON MAR 6 2017

MNZ088-WIZ032>034-070230-
Winona-Buffalo-Jackson-Trempealeau-
805 PM CST MON MAR 6 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL WINONA...
BUFFALO...NORTHWESTERN JACKSON AND TREMPEALEAU COUNTIES...

At 805 PM CST, radar indicated strong thunderstorms were located
along a line extending from near Mondovi to 6 miles north of
Rushford. Movement was northeast at 55 mph.

Wind gusts up to 50 mph and dime size hail are possible with these
storms.

These storms will be near...
  Mondovi around 810 PM CST.
  Strum around 815 PM CST.
  Trempealeau and Osseo around 820 PM CST.
  Arcadia and Galesville around 830 PM CST.

Other locations impacted by these storms include Dodge, Franklin,
York, Eleva and Wilson.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4460 9107 4415 9111 4385 9176 4385 9194
      4419 9188 4420 9186 4421 9188 4459 9181
      4460 9178
TIME...MOT...LOC 0205Z 230DEG 50KT 4457 9162 4391 9173

Wetenkamp

Special weather statement, Mar 6, 8:16 PM CST, 0 minutes before

Special Weather Statement
National Weather Service La Crosse WI
816 PM CST MON MAR 6 2017

IAZ010-011-029-030-WIZ053-054-061-070300-
Clayton-Winneshiek-Fayette-Allamakee-Vernon-Crawford-Grant-
816 PM CST MON MAR 6 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CLAYTON...FAYETTE...
ALLAMAKEE...EASTERN WINNESHIEK...SOUTHWESTERN VERNON...WESTERN GRANT
AND WESTERN CRAWFORD COUNTIES...

At 815 PM CST, radar indicated strong thunderstorms were located
along a line extending from near Spring Grove to Fairbank. Movement
was east at 45 mph.

Wind gusts of 50 to 55 mph and dime size hail are possible with these
storms.

These storms will be near...
  New Albin and Fayette around 835 PM CST.
  Arlington around 845 PM CST.
  Strawberry Point around 850 PM CST.
  Volga around 855 PM CST.
  Elkader and Edgewood around 900 PM CST.

Other locations impacted by these storms include Hardin, Bridgeport,
Seneca, Beetown and Wauzeka.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4264 9208 4273 9208 4350 9166 4350 9090
      4267 9088 4265 9090
TIME...MOT...LOC 0215Z 257DEG 37KT 4350 9159 4264 9205

Wetenkamp

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 6, 6:47 PM CST	Severe Thunderstorm Warning	ARX	Buffalo	43 min
Mar 6, 7:06 PM CST	Special Weather Statement	ARX	Buffalo, Trempealeau	114 min
Mar 6, 7:30 PM CST	Severe Thunderstorm Warning	ARX	Buffalo	25 min
Mar 6, 7:45 PM CST	Special Weather Statement	ARX	Trempealeau	45 min
Mar 6, 8:05 PM CST	Special Weather Statement	ARX	Buffalo, Trempealeau	25 min
Mar 6, 8:33 PM CST	Severe Thunderstorm Warning	ARX	La Crosse, Vernon	42 min
Mar 6, 8:44 PM CST	Special Weather Statement	ARX	Clark, Jackson	46 min
Mar 6, 8:48 PM CST	Special Weather Statement	ARX	Crawford, Grant, Richland	42 min
Mar 6, 8:50 PM CST	Special Weather Statement	ARX	Monroe, Vernon	40 min
Mar 6, 8:55 PM CST	Severe Thunderstorm Warning	ARX	Monroe, Vernon	50 min
Mar 6, 9:12 PM CST	Severe Thunderstorm Warning	ARX	Grant	63 min
Mar 6, 9:22 PM CST	Special Weather Statement	ARX	Adams, Juneau	53 min
Mar 6, 9:30 PM CST	Severe Thunderstorm Warning	ARX	Adams, Juneau	45 min
Mar 6, 9:42 PM CST	Severe Thunderstorm Warning	ARX	Richland, Vernon	48 min
Mar 6, 10:12 PM CST	Severe Thunderstorm Warning	ARX	Adams, Juneau	48 min
Mar 7, 12:24 PM CST	River Flood Warning	ARX	Jackson	43 hr
Mar 7, 12:24 PM CST	River Flood Warning	ARX	La Crosse, Trempealeau	4 days
Mar 7, 12:24 PM CST	River Flood Warning	ARX	Juneau	5 days
Mar 6, 6:15 PM CST	Special Weather Statement	ARX	Floyd, Mitchell	60 min
Mar 6, 6:36 PM CST	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	54 min
Mar 6, 7:13 PM CST	Severe Thunderstorm Warning	ARX	Chickasaw, Howard, Winneshiek	62 min
Mar 6, 6:22 PM CST	Severe Thunderstorm Warning	ARX	Olmsted	23 min
Mar 6, 6:25 PM CST	Special Weather Statement	ARX	Dodge, Fillmore, Mower, Olmsted, Wabasha	110 min
Mar 6, 6:32 PM CST	Severe Thunderstorm Warning	ARX	Wabasha	43 min
Mar 6, 6:57 PM CST	Severe Thunderstorm Warning	ARX	Mower	33 min
Mar 6, 8:01 PM CST	Severe Thunderstorm Warning	ARX	Fillmore, Houston, Winona	45 min

Nearby

Special Weather Statements in Iowa, 2017 Special Weather Statements in Wisconsin, 2017 Every 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.