Alert archive / Minnesota / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 32, NWS La Crosse, WI

June 5, 1999Houston County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 5, 1999, 11:27 PM CDT for Houston County, Minnesota. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 5, 1999, 11:27 PM CDT (04:27 UTC)
Expired: Jun 6, 1999, 12:30 AM CDT
In force: 63 min
Issued by: NWS La Crosse, WI
Area: Whole counties

County Houston County, MN

The radar

The La Crosse radar (KARX), 30 km from the middle of the area, began a volume at 04:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 5, 9:45 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.5 hours before the alert went out and 213 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: 1578 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1452 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 304 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 5, 3:12 PM CDT, 8 hours 15 minutes earlier.

Area forecast discussion, Jun 5, 3:12 PM CDT, 8 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
312 PM CDT SAT JUN 5 1999

ALL EYES FOCUSED ON EXTREMELY VOLATILE SHORT TERM CONVECTIVE
SITUATION.  CAP IN RIGHT EXIT REGION OF STRONG 250 MB JET IS
CURRENTLY PREVENTING RELEASE OF EXTREMELY HIGH SURFACE BASED CAPES.
AT PRESENT...SEVERE THUNDERSTORM WATCH COVERS THE NORTHWESTERN THIRD
OF THE ARX CWA.  WATCHING A STRONG CONVERGENCE AREA ALIGNED
NORTHEAST TO SOUTHWEST IN THE VICINITY OF THE TWIN CITIES.  IF THE
CAP DOES BREAK...IT LIKELY WILL DO SO HERE AND RELEASE CAPES IN
EXCESS OF 5000 J/KG.  THUS TORNADO WATCH IS WELL FOUNDED AND WILL
WATCH CLOSELY THIS EVENING.

OTHER MAIN FOCUS OF FORECAST IS PROGRESS OF 250 MB JET AND
STRENGTHENING OF 850 MB LOW-LEVEL JET OVERNIGHT.  DURING THE EARLY
MORNING HOURS ON SUNDAY...MUCH OF FORECAST AREA ENTERS THE RIGHT
ENTRANCE REGION OF THE JET WHICH IN CONCERT WITH STRONG LOW LEVEL
MOISTURE CONVERGENCE SHOULD PROMOTE ANOTHER ROUND OF CONVECTION...
POSSIBLY SEVERE...INTO SUNDAY.

EXTENDED STILL LOOKING DRY INTO MIDWEEK WITH THE NEXT CHANCE OF
SHOWERS OR THUNDERSTORMS LATE WENDESDAY NIGHT AND THURSDAY.
CONTINUED WARM BUT TEMPS SLIGHTLY COOLER THURSDAY WITH NEXT
SHORTWAVE SUPPRESSING HEIGHTS.

.LSE...NONE.

DEVOIR

In the hours before

Local storm report, Jun 5, 8:10 PM CDT, 3 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
810 PM CDT SAT JUN 5 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0655 PM    JUMP RIVER                WI   WIND DAMAGE
06/05/99   TAYLOR                         SEVERAL TREES DOWN

0730 PM    MEDFORD                   WI   1 INCH HAIL
06/05/99   TAYLOR

0738 PM    MEDFORD                   WI   WIND DAMAGE
06/05/99   TAYLOR                         MULTIPLE TREES AND UTILITY
                                          LINES DOWN

RIECK/NELSON/BAUMGARDT/STANGELAND

Local storm report, Jun 5, 8:10 PM CDT, 3 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
810 PM CDT SAT JUN 5 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0655 PM    JUMP RIVER                WI   WIND DAMAGE
06/05/99   TAYLOR                         SEVERAL TREES DOWN

0730 PM    MEDFORD                   WI   1 INCH HAIL
06/05/99   TAYLOR

0738 PM    MEDFORD                   WI   WIND DAMAGE
06/05/99   TAYLOR                         MULTIPLE TREES AND UTILITY
                                          LINES DOWN

RIECK/NELSON/BAUMGARDT/STANGELAND

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 9:24 PM CDT	Severe Thunderstorm Warning	ARX	Mitchell	36 min
Jun 6, 4:51 PM CDT	Severe Thunderstorm Warning	ARX	Floyd, Mitchell	59 min
Jun 6, 5:31 PM CDT	Severe Thunderstorm Warning	ARX	Howard	64 min
Jun 5, 7:26 PM CDT	Severe Thunderstorm Warning	ARX	Taylor	34 min
Jun 5, 9:52 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	68 min
Jun 5, 10:31 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	59 min
Jun 6, 3:02 PM CDT	Severe Thunderstorm Warning	ARX	Monroe	63 min
Jun 6, 3:29 PM CDT	Severe Thunderstorm Warning	ARX	Juneau	56 min
Jun 6, 5:18 PM CDT	Tornado Warning	ARX	Taylor	17 min
Jun 6, 5:38 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	32 min
Jun 5, 8:58 PM CDT	Severe Thunderstorm Warning	ARX	Dodge, Mower	62 min
Jun 5, 9:25 PM CDT	Severe Thunderstorm Warning	ARX	Olmsted	65 min
Jun 5, 9:28 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha	47 min
Jun 5, 9:55 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore, Mower	65 min
Jun 5, 10:52 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore	53 min
Jun 5, 11:08 PM CDT	Severe Thunderstorm Warning	ARX	Winona	62 min
Jun 6, 12:44 AM CDT	Severe Thunderstorm Warning	ARX	Wabasha	46 min
Jun 6, 5:12 PM CDT	Severe Thunderstorm Warning	ARX	Mower	63 min
Jun 6, 5:21 PM CDT	Severe Thunderstorm Warning	ARX	Dodge, Olmsted	64 min
Jun 6, 5:48 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha, Winona	62 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1999 Every severe thunderstorm warning in 1999

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.