Alert archive / Wisconsin / Flash Flood Warnings in 1999

Flash Flood Warning 9, NWS Milwaukee, WI

June 13, 1999Milwaukee County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 13, 1999, 10:48 AM CDT for Milwaukee 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
Jun 13, 1999, 10:48 AM CDT (15:48 UTC)
Expired
Jun 13, 1999, 2:00 PM CDT
In force
3 hr
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Milwaukee County, WI

The radar

The Milwaukee radar (KMKX), 51 km from the middle of the area, began a volume at 15:51 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, 3.8 hours before the alert went out and 163 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 1999-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1999-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
11 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
1027 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
25 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.

000 
TTAA00 KMKE 131548
FFWMKE
WIC079-131850-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1048 AM CDT SUN JUN 13 1999

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MILWAUKEE COUNTY IN SOUTHEASTERN WISCONSIN

* UNTIL 200 PM CDT

* AT 1045 AM CDT...DOPPLER RADAR SHOWED STEADY MODERATE TO HEAVY
  RAIN OVER MILWAUKEE COUNTY. THE AREA OF RAIN IS MOVING VERY SLOWLY
  TO THE NORTHEAST AND WILL CONTINUE THROUGH ABOUT 100 PM THIS
  AFTERNOON WITH AN ADDITIONAL INCH OF RAIN POSSIBLE.

* COUNTY LAW ENFORCEMENT INDICATES MANY AREAS THROUGHOUT MILWAUKEE
  COUNTY ARE EXPERIENCING SOME FLOODING.  SOME SECTIONS OF THE
  INTERSTATE SYSTEM HAVE BEEN CLOSED DUE TO FLOODING.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

DAVIS

What forecasters said that day

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

In the hours before

Special weather statement, Jun 13, 6:00 AM CDT, 4 hours 48 minutes before
WIZ046-047-051-052-056>060-062>072-131601-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 AM CDT SUN JUN 13 1999

...HAZARDOUS WEATHER OUTLOOK...
...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN...

THREAT...
NO RISK OF SEVERE THUNDERSTORMS TODAY OR TONIGHT.

DISCUSSION...
ALTHOUGH THE AIRMASS OVER SOUTH CENTRAL AND SOUTHEAST
WISCONSIN WILL REMAIN MOIST AND SOMEWHAT UNSTABLE...AND SCATTERED
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE...NO SEVERE
THUNDERSTORMS ARE EXPECTED.

SPOTTER ACTION...
STORM SPOTTER GROUPS WILL NOT BE NEEDED FOR ACTIVATION TODAY
OR TONIGHT ACROSS SOUTH CENTRAL AND SOUTHEAST WISCONSIN.

MK
Special weather statement, Jun 13, 6:00 AM CDT, 4 hours 48 minutes before
WIZ046-047-051-052-056>060-062>072-131601-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 AM CDT SUN JUN 13 1999

...HAZARDOUS WEATHER OUTLOOK...
...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN...

THREAT...
NO RISK OF SEVERE THUNDERSTORMS TODAY OR TONIGHT.

DISCUSSION...
ALTHOUGH THE AIRMASS OVER SOUTH CENTRAL AND SOUTHEAST
WISCONSIN WILL REMAIN MOIST AND SOMEWHAT UNSTABLE...AND SCATTERED
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE...NO SEVERE
THUNDERSTORMS ARE EXPECTED.

SPOTTER ACTION...
STORM SPOTTER GROUPS WILL NOT BE NEEDED FOR ACTIVATION TODAY
OR TONIGHT ACROSS SOUTH CENTRAL AND SOUTHEAST WISCONSIN.

MK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 11:01 AM CDTFlash Flood WarningMKXKenosha, Racine, Walworth3 hr

Nearby

Flash Flood Warnings in Wisconsin, 1999Every flash flood 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.