[spotters-illianaskywarn] Fwd: NOAA's National Weather Service SPC Mesoscale Discussion Update
- From: Keith Reedy <keithreedy@xxxxxxxxxxxx>
- To: "spotters-illianaskywarn@xxxxxxxxxxxxx" <spotters-illianaskywarn@xxxxxxxxxxxxx>
- Date: Tue, 29 Jan 2013 16:38:48 -0500
Keith Reedy
keithreedy@xxxxxxxxxxxx
Begin forwarded message:
> From: "GovDelivery Weather Updates" <weatherupdates@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: NOAA's National Weather Service SPC Mesoscale Discussion Update
> Date: January 29, 2013 4:35:36 PM EST
> To: keithreedy@xxxxxxxxxxxx
> Reply-To: weatherupdates@xxxxxxxxxxxxxxxxxxxxxx
>
>
>
> You are subscribed to SPC Mesoscale Discussion for NOAA's National Weather
> Service.
> GovDelivery provides this service using unaltered NOAA/NWS products.
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>
> SPC MD 74
> 01/29/2013 04:32 PM EST
>
> MD 0074 CONCERNING TORNADO WATCH 9... FOR PORTIONS OF E-CNTRL
> OK...N-CNTRL/NWRN AR...S-CNTRL/E-CNTRL MO...W-CNTRL IL
>
>
> MESOSCALE DISCUSSION 0074
> NWS STORM PREDICTION CENTER NORMAN OK
> 0331 PM CST TUE JAN 29 2013
>
> AREAS AFFECTED...PORTIONS OF E-CNTRL OK...N-CNTRL/NWRN
> AR...S-CNTRL/E-CNTRL MO...W-CNTRL IL
>
> CONCERNING...TORNADO WATCH 9...
>
> VALID 292131Z - 292300Z
>
> THE SEVERE WEATHER THREAT FOR TORNADO WATCH 9 CONTINUES.
>
> SUMMARY...THE THREAT FOR SVR WINDS AND TORNADOES CONTINUES ACROSS
> REMAINING VALID PORTIONS OF TORNADO WATCHES 6 AND 9.
>
> DISCUSSION...A SQUALL LINE EXTENDING FROM W-CNTRL IL SWWD INTO SERN
> OK WILL CONTINUE TO ADVANCE EWD INTO A MARGINALLY UNSTABLE AND
> STRONGLY SHEARED AIR MASS. VWP DATA AHEAD OF THE LINE INDICATE
> 0-1-KM SRH VALUES OF 325-400 M2/S2...WHICH WILL SUPPORT MESOVORTICES
> EMBEDDED WITHIN THE CONVECTIVE LINE -- AS HAS BEEN NOTED WITH STORMS
> CURRENTLY APPROACHING THE LSX RDA. THESE WILL BE ASSOCIATED WITH A
> THREAT FOR SVR WINDS AND TORNADOES. ALSO...AHEAD OF THE SQUALL
> LINE...DISCRETE/SEMI-DISCRETE CONVECTION CONTINUES DEVELOPING FROM
> E-CNTRL OK INTO NWRN AR AND S-CNTRL MO WITHIN A REGION OF RICHER
> LOW-LEVEL MOISTURE -- I.E. SFC DEWPOINTS IN THE LOWER 60S. ANY OF
> THIS ACTIVITY EXHIBITING PERSISTENT DISCRETE AND SFC-BASED
> CHARACTERISTICS WILL HAVE A GREATER PROPENSITY TO PRODUCE TORNADOES
> GIVEN THE AFOREMENTIONED LOW-LEVEL SRH. SUCH EVOLUTION WAS EARLIER
> DETECTED BY SRX WSR-88D DATA WITH A SUPERCELL THAT MOVED FROM
> SEQUOYAH COUNTY OK INTO CRAWFORD/WASHINGTON COUNTIES AR. THIS
> PARTICULAR STORM MAY CONTINUE TO CYCLE WITH A THREAT FOR
> MESOCYCLONES/TORNADOES AS IT TRACKS NEWD ACROSS NWRN AR. SIMILAR
> ACTIVITY COULD EVOLVE TO ITS EAST.
>
> TORNADO WATCH 6 WAS LOCALLY EXTENDED IN TIME ALONG/AHEAD OF THE
> SQUALL LINE BY WFO TULSA TO ADDRESS THE NEAR-TERM SVR THREAT. THE
> SVR THREAT WILL BE REDUCED TO ZERO FOLLOWING THE PASSAGE OF THE
> SQUALL LINE.
>
> ..COHEN.. 01/29/2013
>
> ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
>
> ATTN...WFO...LSX...LZK...SGF...TSA...
>
> LAT...LON 38349162 39459077 39419027 39138982 37979023 37019129
> 36199152 35409209 35349363 35399519 35779515 36189462
> 36449406 36819332 37469255 38349162
>
> Read more
> SPC Center Public Severe Weather Outlook (PWO)
> 01/29/2013 03:27 PM EST
>
> Public Severe Weather Outlook
> PUBLIC SEVERE WEATHER OUTLOOK
> NWS STORM PREDICTION CENTER NORMAN OK
> 0226 PM CST TUE JAN 29 2013
>
> ...SEVERE THUNDERSTORMS WITH WIDESPREAD DAMAGING WINDS AND SEVERAL
> TORNADOES EXPECTED OVER PARTS OF THE LOWER OHIO VALLEY...MID
> SOUTH...AND LOWER MISSISSIPPI VALLEY THROUGH TONIGHT...
>
> THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING SEVERE
> THUNDERSTORMS WITH WIDESPREAD DAMAGING WINDS AND SEVERAL TORNADOES
> OVER PORTIONS OF THE LOWER OHIO VALLEY...MID SOUTH...AND LOWER
> MISSISSIPPI VALLEY THROUGH TONIGHT.
>
> THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
>
> MUCH OF ARKANSAS
> SOUTHERN ILLINOIS
> EXTREME SOUTHWESTERN INDIANA
> WESTERN KENTUCKY
> NORTHERN LOUISIANA
> PORTIONS OF SOUTHERN MISSOURI
> PORTIONS OF NORTHERN MISSISSIPPI
> EXTREME SOUTHEASTERN OKLAHOMA
> WESTERN TENNESSEE
> EXTREME NORTHEASTERN TEXAS
>
> ELSEWHERE...SEVERE STORMS ARE ALSO POSSIBLE FROM...PARTS OF THE
> SOUTHERN GREAT LAKES REGION SOUTHWARD TO THE UPPER TEXAS AND
> LOUISIANA COAST.
>
> THE THREAT FOR SEVERE THUNDERSTORMS WILL CONTINUE TO INCREASE
> THROUGH TONIGHT IN ADVANCE OF A STRONG COLD FRONT MOVING ACROSS THE
> CENTRAL UNITED STATES. THE MOST INTENSE THUNDERSTORMS ARE
> ANTICIPATED LATE THIS AFTERNOON AND ESPECIALLY INTO THE OVERNIGHT
> HOURS TONIGHT ACROSS PARTS OF THE LOWER OHIO VALLEY...MID
> SOUTH...AND LOWER MISSISSIPPI VALLEY. THIS WILL OCCUR AS A
> FAST-MOVING SQUALL LINE AND INDIVIDUAL STORMS CROSS THIS
> Read more
>
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