Hot And Humid with Possible Storms Today; Friday Summary (Updated 9 AM 6/11)

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Very Warm And Humid Conditions Today:

A warm and humid airmass will sit over Wisconsin through this evening. Then a cold front will slide southwest through the area overnight.

Highs today are expected to be in the lower 90s across southern Wisconsin. The combination of the very warm and humid conditions will bring heat index values into the mid to upper 90s this afternoon. Plan ahead for the very warm and humid conditions, and review heat safety information here.

Madison and Milwaukee will approach their record highs for today.  The record high for Madison is 94 which was set in 1956.  The record high for Milwaukee is 95 which was set in 1933.

Here is a heat index chart to show heat index values and their risk levels:

Here are maps of the expected highs today along with the expected heat index values:

 

Highs Saturday

Heat Index Values Saturday

Severe Storms Possible This Afternoon/Evening:
 

SPC has most of the area in a Marginal Risk for severe storms this afternoon and evening, with a small threat of large hail and damaging winds.

See the images below for the latest SPC Day 1 outlook graphics:
 

SPC Outlook Sat Afternoon/Evening	Severe Probability for Wind/Hail

Keep up with the latest forecasts and keep an eye to the sky in case any outdoor activities are planned. Plan ahead for the possible severe weather, and review severe weather safety information here.

Friday Thunderstorm Summary

Thunderstorms developed over the Northern Plains on Friday and evolved into a line by the time they reached eastern Minnesota. The line of storms tracked east-southeast through Wisconsin Friday evening and produced strong, damaging winds primarily in central Wisconsin.  There were a few reports of strong winds in south central Wisconsin.  Here is a summary of reports from Friday's Storms.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
956 PM CDT FRI JUN 10 2016

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

0730 PM     TSTM WND GST     BERLIN                  43.97N 88.95W
06/10/2016  E30.00 MPH       GREEN LAKE         WI   EMERGENCY MNGR

            POWER LINES SPARKING.

0730 PM     TSTM WND GST     WISCONSIN DELLS         43.63N 89.78W
06/10/2016  E40.00 MPH       COLUMBIA           WI   911 CALL CENTER

            TREE LIMB DOWN NEAR THE INTERSECTION OF HWY 12 AND
            PIONEER DRIVE FROM THUNDERSTORM OUTFLOW WINDS ESTIMATED
            AT 40 MPH.

0734 PM     TSTM WND GST     MARQUETTE               43.75N 89.14W
06/10/2016  M45.00 MPH       GREEN LAKE         WI   EMERGENCY MNGR

            TREE LIMBS DOWNED.

0738 PM     TSTM WND GST     DALTON                  43.66N 89.21W
06/10/2016  E40.00 MPH       GREEN LAKE         WI   EMERGENCY MNGR

            TREE LIMBS DOWN FROM THUNDERSTORM OUTFLOW WINDS ESTIMATED
            BETWEEN 35 MPH AND 40 MPH.

0800 PM     TSTM WND DMG     PORTAGE                 43.55N 89.47W
06/10/2016                   COLUMBIA           WI   911 CALL CENTER

            911 CENTER REPORTED NUMEROUS TREES DOWN AND 6 TO 8 ROADS
            BLOCKED BY TREES ACROSS NORTHERN AND CENTRAL PORTIONS OF
            THE COUNTY BETWEEN 8 PM CDT AND 820 PM CDT.

0800 PM     TSTM WND DMG     BARABOO                 43.47N 89.74W
06/10/2016                   SAUK               WI   911 CALL CENTER

            911 CENTER RECEIVED NUMEROUS REPORTS OF TREES DOWN ACROSS
            THE COUNTY FROM LA VALLE TO ROCK SPRINGS AND BARABOO
            BETWEEN 8PM CDT AND 820 PM CDT.

0807 PM     TSTM WND GST     LONE ROCK AIRPORT       43.21N 90.19W
06/10/2016  M54.00 MPH       SAUK               WI   ASOS

            PEAK THUNDERSTORM WIND GUST OF 54 MPH...47KNOTS...
            REPORTED BY LONE ROCK AIRPORT ASOS.

0815 PM     TSTM WND GST     ENE FOND DU LAC         43.78N 88.45W
06/10/2016  E50.00 MPH       FOND DU LAC        WI   PUBLIC

            EVENT ORGANIZER FOR WALLEYE WEEKEND REPORTED A TENT
            KNOCKED DOWN...PORT-O-POTTIES KNOCKED OVER...GARBAGE CANS
            BLOWN INTO LAKE WINNEBAGO AND TREE BRANCHES DOWNED BY
            THUNDERSTORM WINDS GUSTS ESTIMATED AT 50 MPH.

0836 PM     TSTM WND DMG     SHEBOYGAN               43.75N 87.72W
06/10/2016                   SHEBOYGAN          WI   911 CALL CENTER

            911 CALL CENTER RECEIVED REPORTS OF TREES AND WIRES DOWN
            SCATTERED ACROSS THE COUNTY BETWEEN 836 PM CDT AND 9 PM
            CDT.

0850 PM     MARINE TSTM WIND 1 E SHEBOYGAN           43.75N 87.70W
06/10/2016  M46.00 MPH       LMZ643             WI   C-MAN STATION

            SHEBOYGAN C-MAN REPORTED A THUNDERSTORM WIND GUST OF 40
            KNOTS...46 MPH.

Wood/Davis/Cronce
NWS Milwaukee/Sullivan, WI