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Central PA and the fringes - Spring


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Beautiful day here. Gonna start needing AC within the next couple weeks, I still think it's crazy that a lot of the older apartments here don't come with it as a standard feature

 

I guess it depends on personal preference; I didn't use AC at all last summer since the warmest it got here was 89F.

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I guess it depends on personal preference; I didn't use AC at all last summer since the warmest it got here was 89F.

 

Wow. I would love to have your tolerance for the heat. I can't stand it when temperatures are above 80F, unless the dew point is low. I love the 50's to mid 70's as the best temperatures. I think I should just move to New England lol

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Tomorrow is shaping up to be a beautiful day for the whole state.

I'm not usually one to plug something, but tomorrow is Millersville's Public Weather Awareness Day or PWAD for short. My friend has been working on this for a year as its part of our AMS chapter. If you're in the area or would like to come out and support, please stop by. Free food and drinks, big name vendors and lots of great educational and fun booths for kids and adults. We'll also be launching a weather balloon at the end of event, so come on out!! 11am - 3pm at Pucillo Gym off Pucillo Drive in Millersville, PA. Hope to see some come out

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Tomorrow is shaping up to be a beautiful day for the whole state.

I'm not usually one to plug something, but tomorrow is Millersville's Public Weather Awareness Day or PWAD for short. My friend has been working on this for a year as its part of our AMS chapter. If you're in the area or would like to come out and support, please stop by. Free food and drinks, big name vendors and lots of great educational and fun booths for kids and adults. We'll also be launching a weather balloon at the end of event, so come on out!! 11am - 3pm at Pucillo Gym off Pucillo Drive in Millersville, PA. Hope to see some come out

I remember when PWAD was started during my college years.  As you said, it is an excellent event and any weather enthusiast in the LSV should go.  

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Well, hello all.  After hearing about the upcoming rain storm followed by a significant cool spell I just took a look at the 18Z GFS.  Major lol's.  We go below zero at 850 beginning at hour 81 and remain CONTINUOUSLY below zero until hour 213!!  That's like 6 days.  WOW.  Looks like we may drop below 32 degrees at some point during that spell.

 

But before that we have 2" of rain to contend with from now through tomorrow.

 

Stay tuned...

 

>>PS:  I hit 84 degrees here yesterday for my high temp.  This was my first high above 80 and warmest temp so far this year.

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We were in Texas Thur-yesterday. Saw a tornado, golf ball size hail, 6" rain in 2 hrs and came within 200 yards of a tree falling and killing us while we were pulled off the road Thursday night in a storm (couldn't see the road in front of your face).

 

Unfortunately said tree did hit a car that had pulled over in front of us and killed the driver. :(

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We were in Texas Thur-yesterday. Saw a tornado, golf ball size hail, 6" rain in 2 hrs and came within 200 yards of a tree falling and killing us while we were pulled off the road Thursday night in a storm (couldn't see the road in front of your face).

 

Unfortunately said tree did hit a car that had pulled over in front of us and killed the driver. :(

Dang, thats some bad luck there.

 

SPC has us under an enhanced risk level for today.

SPC AC 201256

   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0756 AM CDT MON APR 20 2015

   VALID 201300Z - 211200Z

   ...THERE IS AN ENH RISK OF SVR TSTMS PORTIONS CENTRAL/SERN PA TO
   DELMARVA AND NERN NC...

   ...THERE IS A SLGT RISK OF SVR TSTMS ELSEWHERE FROM NRN SC TO UPPER
   OH VALLEY AND COASTAL MID ATLC...

   ...THERE IS A SLGT RISK OF SVR TSTMS PORTIONS NRN/NWRN FL AND SERN
   GA...

   ...THERE IS A MRGL RISK OF SVR TSTMS ELSEWHERE FROM PORTIONS COASTAL
   S FL TO WRN NY AND CENTRAL/ERN OH...

   ...SUMMARY...
   ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED DURING THE
   AFTERNOON AND EVENING ACROSS PORTIONS OF THE CORRIDOR FROM THE
   MID-ATLANTIC TO THE CAROLINAS.  OTHER SEVERE THUNDERSTORMS MAY MOVE
   EASTWARD OFF THE GULF AND AFFECT PARTS OF NORTHERN AND CENTRAL
   FLORIDA AND SOUTHERN GEORGIA.

   ...SYNOPSIS...
   UPPER-AIR PATTERN THIS PERIOD WILL BE CHARACTERIZED BY TWO
   PRIMARY/SYNOPTIC-SCALE FEATURES...
   1. SPLIT FLOW AROUND REX BLOCK LOCATED OVER WRN NORTH AMERICA...WITH
   HIGH-AMPLITUDE RIDGING OVER NWRN STATES AND BROAD/WEAK CYCLONE
   OFFSHORE CA.
   2. LARGE CYCLONE NOW CENTERED OVER MB/ONT BORDER WITH TROUGH SSEWD
   OVER MS VALLEY.  THIS CYCLONE SHOULD SHIFT SLOWLY SEWD OVER LS
   THROUGH PERIOD...WHILE SEVERAL SHORTWAVES PIVOT THROUGH SRN
   SEMICIRCLE OF ITS ACCOMPANYING CYCLONIC-FLOW FIELD.

   STG SHORTWAVE TROUGH -- CURRENTLY LOCATED OVER LOWER OH VALLEY --
   WILL LIFT NNEWD ACROSS LOWER MI TO ERN LS AREA BY 00Z THEN NWD
   ACROSS NWRN ONT.  IN ITS WAKE...WEAK SHORTWAVE TROUGH -- EVIDENT IN
   MOISTURE-CHANNEL IMAGERY OVER AR/LA -- WILL EJECT ENEWD ACROSS
   CENTRAL APPALACHIANS.

   AT SFC...11Z ANALYSIS SHOWED DEEP/985-MB LOW OVER NWRN LOWER
   MI...COLD FRONT FROM THERE ACROSS INDIANA...SERN LA...AND DEEP S
   TX...AND WARM FRONT SEWD ACROSS NERN OH...SWRN PA...WEAK THROUGH
   WEAK LOW IN NRN MD...AND ACROSS SRN CHESAPEAKE BAY.  WARM FRONT IS
   FCST TO MOVE NEWD SLOWLY TO NERN PA AND NJ BY 00Z....WHEN SFC LOW
   SHOULD BE LOCATED OVER ONT NE OF LS.  BY 00Z COLD FRONT WILL ARC
   SEWD FROM OCCLUSION TRIPLE POINT OVER PA SWWD ACROSS WRN
   NC...GA...AND FL PANHANDLE...TO N-CENTRAL GULF.  BY
   12Z...TRIPLE-POINT LOW SHOULD DEVELOP AND MOVE TO ERN MA...WITH COLD
   FRONT SWWD ACROSS NRN FL TO WRN GULF.

   ...UPPER OH VALLEY AND PA...CENTRAL APPALACHIANS EWD TO COASTAL
   CAROLINAS/MID ATLC...
   WIDELY SCATTERED TO SCATTERED TSTMS SHOULD DEVELOP THIS AFTN INVOF
   PREFRONTAL AND NEARLY FRONT-PARALLEL SFC TROUGH...WITH MORE ISOLATED
   DEVELOPMENT ELSEWHERE OVER WARM SECTOR.  SOME OF THIS ACTIVITY WILL
   BECOME SVR WITH LARGE HAIL...DAMAGING GUSTS AND A TORNADO OR TWO
   POSSIBLE.

   MIDLEVEL HEIGHT FALLS WILL OCCUR OVER THIS REGION AS PRIMARY VORTEX
   ALOFT SHIFTS IN THIS DIRECTION...WHILE SMALL PERTURBATIONS TRAVERSE
   ASSOCIATED SWLY FLOW ALOFT.  SOME CONCERNS LINGER ABOUT SPEED AT
   WHICH AIR MASS ACROSS PA/MID ATLC CAN DESTABILIZE AND RECOVER DUE TO
   LOW-LEVEL THETAE ADVECTION FOLLOWING EARLY-MORNING RAINFALL. 
   HOWEVER...IR/VIS IMAGERY SHOWS POTENTIAL FOR SOME LOW-CLOUD BREAKUP
   AND SFC DIABATIC HEATING OVER THIS REGION AHEAD OF POTENTIAL AFTN
   CONVECTIVE ARC...IN ADDITION TO ADVECTION OF MIDLEVEL AIR CONTAINING
   STEEPER LAPSE RATES ACROSS THIS REGION.  SFC DEW POINTS SHOULD RISE
   BACK INTO 50S ACROSS MOST OF PRECONVECTIVE PA AND 60S FARTHER S. 
   NET RESULT SHOULD BE GENERATION OF PLUME OF 1000-2000 J/KG
   MLCAPE...WITH FURTHER SUPPORT FROM MINIMAL MLCINH.  MIXED CONVECTIVE
   MODES ARE LIKELY...WITH 35-40 KT EFFECTIVE-SHEAR MAGNITUDES AND
   CURVED LOW-LEVEL HODOGRAPHS INDICATING POTENTIAL FOR A FEW
   SUPERCELLS AND BOWS AMIDST MULTICELL CLUSTERS AND BANDS.  AS
   SUCH...SVR THREAT IS MULTI-MODAL AS WELL.

   CONDITIONAL TORNADO RISK IS GREATER NEAR WARM FRONT WHERE SFC WINDS
   WILL BE MOST BACKED AND LOW-LEVEL VORTICITY IS RICHEST.  INSTABILITY
   TRENDS MAY LEAD TO UPGRADE IN UNCONDITIONAL PROBABILITIES LATER
   TODAY.  ATTM...THERE REMAINS TOO MUCH UNCERTAINTY REGARDING
   DESTABILIZATION IN WAKE OF MORNING RAIN...AND ALSO REGARDING
   STRENGTH OF LOWEST-1-KM FLOW TO ENLARGE ALREADY CURVED HODOGRAPHS
   AND BOOST SRH.

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We were in Texas Thur-yesterday. Saw a tornado, golf ball size hail, 6" rain in 2 hrs and came within 200 yards of a tree falling and killing us while we were pulled off the road Thursday night in a storm (couldn't see the road in front of your face).

 

Unfortunately said tree did hit a car that had pulled over in front of us and killed the driver. :(

wow, crazy chit 

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http://www.spc.noaa.gov/products/md/md0397.html
   MESOSCALE DISCUSSION 0397   NWS STORM PREDICTION CENTER NORMAN OK   1254 PM CDT MON APR 20 2015   AREAS AFFECTED...CNTRL AND NRN VA...NWRN NC...MD...SRN PA...SWRN NJ   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY    VALID 201754Z - 202030Z   PROBABILITY OF WATCH ISSUANCE...80 PERCENT   SUMMARY...SCATTERED SEVERE STORMS ARE LIKELY LATER THIS AFTERNOON   WITH HAIL, DAMAGING WINDS AND PERHAPS AN ISOLATED TORNADO.   DISCUSSION...VISIBLE IMAGERY SHOWS CU INCREASING ALONG THE LEE OF   THE APPALACHIANS AS WELL AS INTO CENTRAL VA WHERE STRONG HEATING IS   OCCURRING. DEEPER CU FIELDS ARE ALSO NOTED ALONG A STATIONARY   BOUNDARY FROM SERN PA INTO SRN NJ. A N-S ORIENTED BAND OF CIRRUS IS   ROUGHLY JUXTAPOSED WITH COOLING ALOFT...WITH DEEPER CU INTO THE WELL   MIXED BUT DRIER AIR FROM WRN PA SWWD.   OVER THE NEXT FEW HOURS...STORMS WILL FORM WITHIN THE BROAD LOW   PRESSURE TROUGH...AND ALSO PERHAPS NEAR THE STATIONARY/WARM FRONT.   STRENGTHENING WIND FIELDS WITH THE UPPER TROUGH WILL AID IN NWD   TRANSPORT OF MOISTURE INTO AREAS THAT ARE CURRENTLY STABLE SUCH AS   PA....LEADING TO STORM DEVELOPMENT.   WHILE THE MAIN THREATS WILL BE HAIL AND WIND...LOW-LEVEL SHEAR   AUGMENTATION ACROSS SERN PA...SRN NJ...DE...AND MD...AS WELL AS   LOCALLY HIGHER DEWPOINTS INTO THE 60S F WILL OFFER A MORE FAVORABLE   SETUP FOR AN ISOLATED TORNADO SHOULD CELLS MOVE INTO OR FORM IN THAT   REGION.   ..JEWELL/HART.. 04/20/2015

 

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TOR watches hoisted

 

 

Tornado Watch

Statement as of 3:08 PM EDT on April 20, 2015


The National Weather Service has issued Tornado Watch 90 in
effect until 10 PM EDT this evening for the following areas

In Pennsylvania this watch includes 16 counties

In central Pennsylvania

Adams Bedford Blair
Cambria Cumberland Dauphin
Franklin Fulton Huntingdon
Juniata Lancaster Lebanon
Mifflin Perry Somerset
York

This includes the cities of... Altoona... Bedford... Carlisle...
Chambersburg... Gettysburg... Harrisburg... Hershey... Huntingdon...
Johnstown... Lancaster... Lebanon... Lewistown... McConnellsburg...
Mifflintown... Mount Union... Newport... Somerset...
Waynesboro and York.
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