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April 15-19th Severe Weather


Chicago Storm

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 URGENT - IMMEDIATE BROADCAST REQUESTED   TORNADO WATCH NUMBER 123   NWS STORM PREDICTION CENTER NORMAN OK   935 AM EDT THU APR 18 2013      THE NWS STORM PREDICTION CENTER HAS ISSUED A      * TORNADO WATCH FOR PORTIONS OF      EASTERN ILLINOIS     CENTRAL AND EASTERN INDIANA     SOUTHERN LOWER MICHIGAN     NORTHWEST OHIO OHIO     LAKE MICHIGAN      * EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 935 AM UNTIL     500 PM EDT.      ...THIS IS A PARTICULARLY DANGEROUS SITUATION...      * PRIMARY THREATS INCLUDE...     SEVERAL INTENSE TORNADOES LIKELY     SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE     A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE      THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE   MILES EAST AND WEST OF A LINE FROM 65 MILES EAST NORTHEAST OF   SOUTH BEND INDIANA TO 60 MILES SOUTH SOUTHWEST OF TERRE HAUTE   INDIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).         DISCUSSION...DISCRETE SUPERCELL DEVELOPMENT IS POSSIBLE AHEAD OF THE   INTENSIFYING PRE-FRONTAL SQUALL LINE THAT WILL RAPIDLY MOVE   NORTHEASTWARD ACROSS THE WATCH AREA THIS MORNING.  GIVEN THE   STRENGTH OF THE LOW-LEVEL SHEAR...A FEW TORNADOES ARE   POSSIBLE...BOTH IN SUPERCELLS AND WITHIN MESO VORTICES EMBEDDED   WITHIN THE LINE.  ACTIVITY MAY BE CAPABLE OF PRODUCING STRONG TO   LOCALLY EXTREME WIND DAMAGE...REGARDLESS OF WHETHER TORNADIC OR   STRAIGHT LINE IN NATURE,
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So close, yet so far. (One county away)

Seems the SPC is having high hopes for this. They were considering either a severe thunderstorm or tornado watch and they end up going with a PDS tornado watch.

Not gonna lie, I wish the storms/rain that is headed this way were about 6 hours slower. Looks like that line will be here by noon. If that happens, the atmosphere wouldn't have enough time to recover and the best threat of svr wx would be south of I-80... Guess we'll wait and see what this line does, but I'm hoping it falls apart before making it here.

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Watch coming shortly for all of lower MI

http://www.spc.noaa.gov/products/md/md0520.html

MESOSCALE DISCUSSION 0520

NWS STORM PREDICTION CENTER NORMAN OK

0848 AM CDT THU APR 18 2013

AREAS AFFECTED...PORTIONS LOWER MI.

CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON

VALID 181348Z - 181415Z

PROBABILITY OF WATCH ISSUANCE...95 PERCENT

SUMMARY...WW ANTICIPATED FOR PORTIONS SRN/ERN LOWER MI.

DISCUSSION...THOUGH CURRENTLY STABLE...WARM FRONTAL

PASSAGE...WAA...MOIST ADVECTION AND SFC DIABATIC HEATING ARE

EXPECTED TO CONTRIBUTE TO FAVORABLE DESTABILIZATION ACROSS THIS AREA

PRIOR TO ARRIVAL OF MAIN CONVECTIVE BAND NOW OVER SRN LM.

DEEP-LAYER WIND FIELDS SUGGEST DAMAGING WIND AS MAIN THREAT...AND

QLCS/BOW-ECHO TORNADOES CANNOT BE RULED OUT.

..EDWARDS/KERR.. 04/18/2013

ATTN...WFO...DTX...APX...IWX...GRR...

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ULLETIN - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH OUTLINE UPDATE FOR WT 124

NWS STORM PREDICTION CENTER NORMAN OK

1010 AM EDT THU APR 18 2013

TORNADO WATCH 124 IS IN EFFECT UNTIL 600 PM EDT FOR THE

FOLLOWING LOCATIONS

MIC005-015-017-025-037-045-049-057-063-065-067-073-075-077-081-

087-091-093-099-107-111-115-117-121-123-125-127-139-145-147-151-

155-157-159-161-163-182200-

/O.NEW.KWNS.TO.A.0124.130418T1410Z-130418T2200Z/

MI

. MICHIGAN COUNTIES INCLUDED ARE

ALLEGAN BARRY BAY

CALHOUN CLINTON EATON

GENESEE GRATIOT HURON

INGHAM IONIA ISABELLA

JACKSON KALAMAZOO KENT

LAPEER LENAWEE LIVINGSTON

MACOMB MECOSTA MIDLAND

MONROE MONTCALM MUSKEGON

NEWAYGO OAKLAND OCEANA

OTTAWA SAGINAW SANILAC

SHIAWASSEE ST. CLAIR TUSCOLA

VAN BUREN WASHTENAW WAYNE

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Bad day for this:

 

000
NOUS63 KDTX 180539
FTMDTX

WSR-88D STATUS NOTIFICATION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
137 AM EDT THU APR 18 2013

TROUBLESHOOTING EFFORTS CONTINUE ON THE KDTX WSR-88D OUTAGE.
PRELIMINARY INDICATIONS POINT TO A PEDESTAL DRIVE MOTOR FAILURE.
RETURN TO SERVICE IS POSSIBLE LATER TODAY.

ALTERNATE RADAR SITES: KAPX, KGRR, KIWX, KCLE.

$

 

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 DISCUSSION...AS A WARM FRONT LIFTS NORTHWARD ACROSS THE   REGION...DESTABILIZATION WILL ALLOW FOR FURTHER INTENSIFICATION OF A   PRE-COLD FRONTAL SQUALL LINE RAPIDLY ADVANCING NORTHEASTWARD INTO   REGION.  DISCRETE SUPERCELL DEVELOPMENT ALSO APPEARS POSSIBLE WITH   THE RISK FOR TORNADOES AHEAD OF THE LINE...BEFORE IT MOVES EAST OF   THE WATCH AREA BY LATE THIS AFTERNOON.

http://www.spc.noaa.gov/products/watch/ww0124.html

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