Severe Thunderstorm Watch 404

Issued

Jul 21, 2016, 5:31 AM EDT (09:31 UTC)

Expired

Jul 21, 2016, 11:26 AM EDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

65 kt

The Marquette radar (KMQT), 79 km from the middle of the area, began a volume at 09:32 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.

Two or more tornadoes

10%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1344Jul 21, 4:54 AM EDT
• Mesoscale Discussion 1345Jul 21, 7:39 AM EDT
• Mesoscale Discussion 1346Jul 21, 9:28 AM EDT

261 
WWUS20 KWNS 210929
SEL4  
SPC WW 210929
MIZ000-WIZ000-LMZ000-LSZ000-211600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 404
NWS STORM PREDICTION CENTER NORMAN OK
430 AM CDT THU JUL 21 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
  UPPER MICHIGAN
  NORTH-CENTRAL AND NORTHEASTERN WISCONSIN
  LAKE MICHIGAN
  LAKE SUPERIOR

* EFFECTIVE THIS THURSDAY MORNING FROM 430 AM UNTIL 1100 AM CDT.

* PRIMARY THREATS INCLUDE...
  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
    MPH POSSIBLE

SUMMARY...A BOWING COMPLEX OF THUNDERSTORMS THAT HAS PRODUCED
SEVERAL MEASURED SEVERE GUSTS OVER MINNESOTA IS EXPECTED TO CONTINUE
SPAWNING DAMAGING WINDS IT MOVES ACROSS THE WATCH AREA THROUGH
EARLY-MID MORNING.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100
STATUTE MILES EITHER SIDE OF A LINE FROM 10 MILES NORTH OF
IRONWOOD MICHIGAN TO 70 MILES EAST NORTHEAST OF ESCANABA
MICHIGAN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 403...

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION
VECTOR 29045.


...EDWARDS

Severe Thunderstorm Watches in Wisconsin, 2016Severe Thunderstorm Watches in Michigan, 2016Every severe thunderstorm watch in 2016

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.