Alert archive / Wisconsin / Flash Flood Warnings in 1997

Flash Flood Warning 6, NWS La Crosse, WI

July 16, 1997Adams County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Jul 16, 1997, 9:12 PM CDT for Adams County, Wisconsin. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 16, 1997, 9:12 PM CDT (02:12 UTC)
Expired: Jul 17, 1997, 12:05 AM CDT
In force: 3 hr
Issued by: NWS La Crosse, WI
Area: Whole counties

County Adams County, WI

The radar

The La Crosse radar (KARX), 115 km from the middle of the area, began a volume at 02:14 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 00:00Z, 2.2 hours before the alert went out and 145 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: 536 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 2104 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLSE 170215
FFWLSE
WIC001-170505-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
912 PM CDT WED JUL 16 1997

* FLASH FLOOD WARNING FOR
    ADAMS COUNTY - CENTRAL WISCONSIN

* UNTIL 1205 AM CDT
 
* SOME LOCATIONS OR STREAMS AFFECTED
    ARKDALE AND FRIENDSHIP...AS WELL AS OTHER SITES IN AND NEAR THE
    BIG ROCHE A CRI AND LITTLE ROCHE A CRI WATERSHEDS.

* CAUSE AND EFFECT...
    HEAVY RAINFALL...IN EXCESS OF THREE INCHES IN THREE HOURS...HAVE
    BEEN INDICATED BY DOPPLER RADAR. HEAVIEST RAINFALLS HAVE FALLEN
    PRIMARILY BETWEEN GRAND MARSH AND ROME.

* FORECAST CONDITIONS...
    ADDITIONAL RAINFALL OF ANOTHER INCH OR TWO IS POSSIBLE...
    PRIMARILY SOUTH OF HIGHWAY 21.

LEAVE FLOOD PRONE AND LOW LYING AREAS IMMEDIATELY.

GL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 7:06 PM CDT	Severe Thunderstorm Warning	ARX	Adams	54 min
Jul 16, 7:15 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	60 min
Jul 16, 7:58 PM CDT	Severe Thunderstorm Warning	ARX	Adams	62 min
Jul 16, 8:56 PM CDT	Severe Thunderstorm Warning	ARX	Adams	64 min
Jul 16, 9:57 PM CDT	Severe Thunderstorm Warning	ARX	Adams	63 min
Jul 17, 1:09 AM CDT	Severe Thunderstorm Warning	ARX	Buffalo	61 min
Jul 17, 2:08 AM CDT	Severe Thunderstorm Warning	ARX	Buffalo	62 min
Jul 17, 2:18 AM CDT	Severe Thunderstorm Warning	ARX	Clark	57 min
Jul 17, 2:54 AM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	61 min
Jul 17, 3:20 AM CDT	Severe Thunderstorm Warning	ARX	La Crosse	45 min
Jul 17, 4:45 AM CDT	Severe Thunderstorm Warning	ARX	La Crosse	45 min

Nearby

Flash Flood Warnings in Wisconsin, 1997 Every flash flood warning in 1997

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.