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2015 Severe Weather Thread


Hvward

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You all were right about the Dcape.. its already extremely high this morning, low clouds are starting to burn off here towards the coast... looking upstream I'm interested to see what what happens with the complex dropping out of the Ohio valley when it encounters all of the heat and instability later on today.

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Morning update from RAH:

MORNING UPDATE: TODAY WILL BE BEST CHARACTERIZED BY A HIGH SEVERE
POTENTIAL...BUT LOW CONFIDENCE FORECAST IN THAT WE HAVE A LOT OF
VERY GOOD INGREDIENTS FOR SEVERE WEATHER IN PLACE BUT WHETHER OR NOT
THEY WILL BE ABLE TO COME TOGETHER REMAINS TO BE SEEN. CONVECTIVE
ALLOWING MODELS HAVE NOT BEEN VERY GOOD THE LAST COUPLE OF DAYS BUT
THE HRRR SEEMS TO BE DOING THE BEST AND REPRESENTS WHAT WE THINK
SHOULD HAPPEN. NAMELY...SCATTERED COVERAGE OF SHOWERS AND
THUNDERSTORMS THIS AFTERNOON BUT WHAT DOES GO UP HAS THE CHANCE TO
BE SEVERE GIVEN THE PARAMETERS. LATER THIS EVENING A SHORTWAVE IS
PROGGED TO TRACK ACROSS THE VA BORDER AND WILL HELP SUPPORT A MORE
ORGANIZED LINE OF STORMS ACROSS OUR FAR NORTHEASTERN COUNTIES WITH
PERHAPS A SMALL THREAT FOR TORNADOES WITH ENHANCED HELICITY. ANOTHER
VARIABLE WILL BE WHERE THE FRONT ENDS UP AT PEAK HEATING. RIGHT NOW
IT IS DRAPED ACROSS THE SOUTHERN COUNTIES AND IS PROGGED TO CONTINUE
TO DRIFT NORTHWARD. THIS SUGGESTS THAT AT LEAST THE SOUTHERN AND
EASTERN COUNTIES SHOULD HAVE SOME DECENT POTENTIAL FOR SEVERE
WEATHER THIS AFTERNOON WITH THE TRIAD LESS LIKELY. AGAIN THE
LOCATION OF THE FRONT WILL DETERMINE IF THE TRIANGLE WILL SEE ANY
SEVERE WEATHER THIS AFTERNOON. MOST OF THE CWA REMAINS IN A SLIGHT
RISK FOR SEVERE STORMS FROM THE SPC WITH DAMAGING WINDS AND
POTENTIALLY SOME SEVERE HAIL THE MAIN THREATS. AS FAR AS HYDROLOGY
IS CONCERNED...AN INITIAL ROUND OF STORMS THIS MORNING HAS PROMPTED
SOME FLOODING NEAR THE TRIAD. FOCUS FOR FLOODING SHOULD SHIFT
EASTWARD THROUGH THE DAY AND TRAINING AND SLOW MOVING THUNDERSTORMS
COULD PROMPT SOME URBAN AND SMALL STREAM OR EVEN FLASH FLOOD
WARNINGS. -ELLIS

 

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I guess hoping is a better word. Seems we can't get a classic setup for good storms this year.

 

A little more cloud cover this am than I would like but most hi res models bring something down from the NW later today and gives a line of storms. 

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Morning update from RAH:

MORNING UPDATE: TODAY WILL BE BEST CHARACTERIZED BY A HIGH SEVERE

POTENTIAL...BUT LOW CONFIDENCE FORECAST IN THAT WE HAVE A LOT OF

VERY GOOD INGREDIENTS FOR SEVERE WEATHER IN PLACE BUT WHETHER OR NOT

THEY WILL BE ABLE TO COME TOGETHER REMAINS TO BE SEEN. CONVECTIVE

ALLOWING MODELS HAVE NOT BEEN VERY GOOD THE LAST COUPLE OF DAYS BUT

THE HRRR SEEMS TO BE DOING THE BEST AND REPRESENTS WHAT WE THINK

SHOULD HAPPEN. NAMELY...SCATTERED COVERAGE OF SHOWERS AND

THUNDERSTORMS THIS AFTERNOON BUT WHAT DOES GO UP HAS THE CHANCE TO

BE SEVERE GIVEN THE PARAMETERS. LATER THIS EVENING A SHORTWAVE IS

PROGGED TO TRACK ACROSS THE VA BORDER AND WILL HELP SUPPORT A MORE

ORGANIZED LINE OF STORMS ACROSS OUR FAR NORTHEASTERN COUNTIES WITH

PERHAPS A SMALL THREAT FOR TORNADOES WITH ENHANCED HELICITY. ANOTHER

VARIABLE WILL BE WHERE THE FRONT ENDS UP AT PEAK HEATING. RIGHT NOW

IT IS DRAPED ACROSS THE SOUTHERN COUNTIES AND IS PROGGED TO CONTINUE

TO DRIFT NORTHWARD. THIS SUGGESTS THAT AT LEAST THE SOUTHERN AND

EASTERN COUNTIES SHOULD HAVE SOME DECENT POTENTIAL FOR SEVERE

WEATHER THIS AFTERNOON WITH THE TRIAD LESS LIKELY. AGAIN THE

LOCATION OF THE FRONT WILL DETERMINE IF THE TRIANGLE WILL SEE ANY

SEVERE WEATHER THIS AFTERNOON. MOST OF THE CWA REMAINS IN A SLIGHT

RISK FOR SEVERE STORMS FROM THE SPC WITH DAMAGING WINDS AND

POTENTIALLY SOME SEVERE HAIL THE MAIN THREATS. AS FAR AS HYDROLOGY

IS CONCERNED...AN INITIAL ROUND OF STORMS THIS MORNING HAS PROMPTED

SOME FLOODING NEAR THE TRIAD. FOCUS FOR FLOODING SHOULD SHIFT

EASTWARD THROUGH THE DAY AND TRAINING AND SLOW MOVING THUNDERSTORMS

COULD PROMPT SOME URBAN AND SMALL STREAM OR EVEN FLASH FLOOD

WARNINGS. -ELLIS

 

We'll be watching how things shape up to the south this afternoon. Watched those storms over Chatham Co. dry up just as they got to the Harnett County line.

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SPC at 11:30

...MID-ATLANTIC AREA...   THE ATMOSPHERE WILL CONTINUE TO DESTABILIZE IN THIS REGION AS WARM   FRONT LIFTS NWD AND UPPER 60S/LOW 70S DEWPOINTS ADVECT THROUGH WARM   SECTOR. LATEST VISIBLE IMAGERY SHOWS SUBSTANTIAL WARMING OF THE   BOUNDARY LAYER IS OCCURRING AND MLCAPE SHOULD REACH 2000 J/KG THIS   AFTERNOON.  A BELT OF STRONGER MID-LEVEL FLOW ALONG THE SRN   PERIPHERY OF THE OHIO VALLEY SHORTWAVE THROUGH WILL MOVE OVER THIS   REGION WITH STRONGER SHEAR /35-45 KT/ EXPECTED OVER VA AND SOMEWHAT   WEAKER FARTHER SOUTH INTO NC. AS THE ATMOSPHERE CONTINUES TO   DESTABILIZE...POTENTIAL EXISTS FOR STORMS TO DEVELOP IN WARM   SECTOR...THE HIGHER TERRAIN AS WELL AS ALONG RESIDUAL CONVECTIVE   OUTFLOW THAT WILL MOVE INTO WRN VA THIS AFTERNOON. DAMAGING WIND AND   LARGE HAIL WILL BE THE MAIN THREATS BUT A COUPLE TORNADOES CANNOT BE   RULED OUT...ESPECIALLY OVER A PORTION OF VA.
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Just woke up and things look on track for some severe..... morning clouds held up central and eastern NC a bit but its more than unstable enough now and getting worse ( better).  Already some stuff breaking out around RDU, not much shear support yet though it is peak heating so we shall see.....

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I don't get why storms are having so much trouble today, with all of the instability.  They can't grow and keep petering out.  What's the deal?

 

Been that way all year for the most part.

 

Meanwhile, I saw on facebook with the On This Date feature that we had good storms on this date the previous two years. 

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