Jan 20 - 21 Severe Weather

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Dave
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#21 Postby Dave » Wed Jan 20, 2010 5:09 pm

Switching to California

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
207 PM PST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A

* TORNADO WARNING FOR...
SANTA CLARA COUNTY IN NORTHERN CALIFORNIA...
THIS INCLUDES THE CITY OF MORGAN HILL...
SANTA CRUZ COUNTY IN NORTHERN CALIFORNIA...

* UNTIL 230 PM PST

* AT 202 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO MOVING
NORTHEAST AT 35 MPH.
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#22 Postby Dave » Wed Jan 20, 2010 5:12 pm

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#23 Postby Dave » Wed Jan 20, 2010 5:14 pm

Louisiana warning

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#24 Postby Dave » Wed Jan 20, 2010 5:18 pm

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
416 PM CST WED JAN 20 2010

LAC105-117-202245-
/O.CON.KLIX.TO.W.0001.000000T0000Z-100120T2245Z/
WASHINGTON LA-TANGIPAHOA LA-
416 PM CST WED JAN 20 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CST FOR EAST
CENTRAL TANGIPAHOA AND WEST CENTRAL WASHINGTON PARISHES...

AT 415 PM CST...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR LORANGER...OR 10 MILES SOUTHEAST OF
AMITE...MOVING EAST AT 20 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED PARISHES.
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#25 Postby Dave » Wed Jan 20, 2010 5:19 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
417 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWESTERN SABINE COUNTY IN EASTERN TEXAS...
EAST CENTRAL SAN AUGUSTINE COUNTY IN EASTERN TEXAS...
SOUTHEASTERN SHELBY COUNTY IN EASTERN TEXAS...

* UNTIL 500 PM CST

* AT 414 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ROSEVINE...
OR 13 MILES NORTHWEST OF HEMPHILL...MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GENEVA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

TAKE COVER NOW.
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#26 Postby Dave » Wed Jan 20, 2010 5:26 pm

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
412 PM CST WED JAN 20 2010

...SEVERE STORMS AND FLASH FLOOD RISKS STARTING TO MATERIALIZE FOR
FOR THE OVERNIGHT...

.DISCUSSION...REFER TO LATEST SPC WW. A VERY DISTINCT AND NEGATIVELY
TILTED MID LEVEL SHORTWAVE ROTATING EWD INTO CENTRAL TX AND HELPING
TO ADD UVV TO THE MIX OF ADEQUATE INSTABILITY(8C 7-500MB LAPSE RATES)
AND SHEAR GETTING ALIGNED ACROSS THE LOWER MS VALLEY. OUR POWERFUL
160KT 200MB JET CORE NOSING THROUGH SRN TX TOWARD THE GULF COAST AND
WILL ONLY SERVE TO INCREASE DIFFLUENCE ALOFT IN THE LEFT EXIT REGION.
AS A RESULT... EXPECT A RAPID INCREASE IN SHRA/TSRA COVERAGE THROUGH
THE EVENING HOURS WITH THE MOST INTENSE CELLS REGENERATING OVER THE
SWRN CWFA AND MOVING NEWD. WHILE LOCALLY HEAVY RAINFALL LIKELY JUST
ABOUT EVERYWHERE...AM KEEPING THE FFA IN PLACE WHERE ANTECEDENT
CONDITIONS MOST RIPE FOR FLASH FLOODING. SOME LOCALIZED FFW EASILY
POSSIBLE OUTSIDE THE BOX HOWEVER. WHILE QPF MAY BE INDICATING A
LITTLE LOWER THAN PREVIOUS FORECASTS...IT STILL LOOKS LIKE AN AREA
ACROSS CENTRAL MS/NERN LA COULD GET UP TO 5 INCHES OF RAINFALL WITH
THIS EVENT... IN LIGHT OF THE 275% NORMAL PWATS AND EFFICIENT
RAINFALL PRODUCTION BEING OBSERVED IN PLACES THIS AFTERNOON.

ALSO IN THE MIX TONIGHT...A DEEPENING SURFACE LOW(999MB) IN NRN TX
THAT IS PROGGED TO CROSS SWRN AR AS 995MB BY 06Z ON LATEST RUC AND
MOVE THROUGH CENTRAL/ERN AR EARLY THURSDAY MORNING. THIS LOW CREATES
A MORE FAVORABLE 0-1KM SHEAR PROFILE OVERNIGHT ACROSS OUR CENTRAL AND
SRN COUNTIES AND SHOULD RESULT IN A FEW NOCTURNAL TORNADOES...NOT THAT
UNCOMMON FOR PAST COOL SEASON SEVERE EPISODES. OUR BEST ESTIMATE
USING THE LOCAL WRF RUNS INDICATES BEST COMBINATION OF SHEAR/INSTABILITY
FOR AN AXIS FROM PORT GIBSON TO RALEIGH TO MERIDIAN SWD ABOUT 00-07Z.

THEN...A DRY MID LEVEL PUNCH(50KTS AT 700MB) ARRIVES FROM THE W LATE
TONIGHT RIGHT ALONG I-20 BRINGING A SHARP END TO THE CONVECTION AS
THE UPPER JET SHIFTS OVERHEAD AND PUSHES BEST DIVERGENT ZONE INTO AL.
A MODERATELY STRONG WLY LOW LEVEL FLOW SHOULD PROVIDE A DECENT DAY
THURSDAY WITH SKIES BECOMING PARTLY TO MOSTLY SUNNY BEFORE MIDDAY.
SOMEWHAT COOLER AIR SETTLES IN FOR THURSDAY NIGHT WITH DIMINISHING
WINDS AND CONTINUED DRYING OUT. HAVE OPTED TO STAY ABOVE MAV MOS FOR
MAX TEMPS AND HAVE TAKEN A BLEND OF MET/MAV FOR OVERNIGHT LOWS
THROUGH FRIDAY./40/
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#27 Postby Dave » Wed Jan 20, 2010 5:31 pm

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#28 Postby Dave » Wed Jan 20, 2010 5:32 pm

WASHINGTON LA-TANGIPAHOA LA-
431 PM CST WED JAN 20 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CST FOR EAST
CENTRAL TANGIPAHOA AND WEST CENTRAL WASHINGTON PARISHES...

AT 430 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED 15 MILES SOUTHWEST OF
FRANKLINTON...OR 12 MILES EAST OF AMITE...MOVING EAST AT 20 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED PARISHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
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#29 Postby Dave » Wed Jan 20, 2010 5:42 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
441 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
CENTRAL WASHINGTON PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF FRANKLINTON...

* UNTIL 515 PM CST

* AT 437 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES WEST OF
ENON...OR 13 MILES SOUTHWEST OF FRANKLINTON...MOVING NORTHEAST AT
20 MPH. LAW ENFORCEMENT REPORTED A TORNADO WITH THIS STORM NEAR
LORANGER.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED PARISH.
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#30 Postby Dave » Wed Jan 20, 2010 5:49 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
448 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
NORTH CENTRAL SABINE COUNTY IN EASTERN TEXAS...
CENTRAL SABINE PARISH IN NORTHWEST LOUISIANA...

* UNTIL 530 PM CST

* AT 447 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES
SOUTHWEST OF ZWOLLE...OR 10 MILES SOUTHEAST OF SEXTON...MOVING
EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MANY...ZWOLLE
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Re: Jan 20 - 21 Severe Weather

#31 Postby srainhoutx » Wed Jan 20, 2010 5:50 pm

:uarrow: May be a hook echo with that cell.
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Re: Jan 20 - 21 Severe Weather

#32 Postby Dave » Wed Jan 20, 2010 5:56 pm

srainhoutx wrote::uarrow: May be a hook echo with that cell.


Saw it too, last shot isn't showing it now...waiting...
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#33 Postby Dave » Wed Jan 20, 2010 5:59 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
458 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
CENTRAL VAN ZANDT COUNTY IN NORTHEAST TEXAS...

* UNTIL 545 PM CST

* AT 458 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO 9 MILES WEST OF CANTON...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
CANTON BY 520 PM CST...
FRUITVALE BY 540 PM CST...
GRAND SALINE AND VAN BY 545 PM CST...
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#34 Postby Dave » Wed Jan 20, 2010 6:02 pm

:uarrow:

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#35 Postby Dave » Wed Jan 20, 2010 6:11 pm

SABINE LA-
510 PM CST WED JAN 20 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CST FOR SABINE
PARISH...

AT 508 PM CST...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED
NEAR ZWOLLE...MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NOBLE...LORING...MANY AND BELMONT
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#36 Postby Dave » Wed Jan 20, 2010 6:13 pm

:uarrow:

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#37 Postby Dave » Wed Jan 20, 2010 6:15 pm

Includes portions of western Shreveport LA

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
514 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHEASTERN HARRISON COUNTY IN NORTHEAST TEXAS...
CENTRAL CADDO PARISH IN NORTHWEST LOUISIANA...
THIS INCLUDES THE CITY OF SHREVEPORT...

* UNTIL 600 PM CST

* AT 513 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES WEST OF
WASKOM...OR 11 MILES SOUTHEAST OF MARSHALL...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GREENWOOD AND BLANCHARD...
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#38 Postby Dave » Wed Jan 20, 2010 6:18 pm

:uarrow:

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#39 Postby Dave » Wed Jan 20, 2010 6:19 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
515 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN WASHINGTON PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF BOGALUSA...

* UNTIL 545 PM CST

* AT 515 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13 MILES WEST OF
BOGALUSA...OR 6 MILES SOUTHEAST OF FRANKLINTON...MOVING NORTHEAST
AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
VARNADO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
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#40 Postby Dave » Wed Jan 20, 2010 6:30 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
529 PM CST WED JAN 20 2010

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
CENTRAL NATCHITOCHES PARISH IN NORTHWEST LOUISIANA...
THIS INCLUDES THE CITY OF NATCHITOCHES...
CENTRAL SABINE PARISH IN NORTHWEST LOUISIANA...

* UNTIL 615 PM CST

* AT 528 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MANY...OR
23 MILES WEST OF NATCHITOCHES...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CAMPTI...MARTHAVILLE
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