When was last time we heard that term for a storm? "Bomb Out"? Too bad its not winter! It would be one fun blizzard to track! 40 DAM drop? 15mb pressure drop less than 24hrs!?
Welcome to the New Stormy Pattern across the U.S
Maybe snow showers to high elevations of PA and MD after the 2nd front
NATIONAL WEATHER SERVICE STATE COLLEGE PA
140 PM EDT TUE OCT 27 2015
.SYNOPSIS...
A POWERFUL STORM WILL DEEPEN OVER THE UPPER MIDWEST AND UPPER
GREAT LAKES. THIS WILL BRING A WIDESPREAD SOAKING RAINFALL IS
EXPECTED TUE NIGHT AND WEDNESDAY. A SEASONABLY COLDER LAKE EFFECT
SHOWER/NORTHWEST FLOW PATTERN WILL END THE WEEK. THE TEMPERATURES
SHOULD REBOUND NICELY OVER THE WEEKEND.
.SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/...
THE WEAK LOW SLIDING UP THE MS VALLEY WILL BOMB-OUT TONIGHT AS A
SERIES OF VERY STRONG SHORTWAVES DIG THE TROUGH OVER THE NORTHERN
PLAINS. MOISTURE FROM THE GOMEX AND ATLANTIC WILL MEET OVERHEAD
AND SPREAD THE RAIN FROM SW-NE THROUGH THE FIRST PART OF THE
NIGHT. THE QPF STILL LOOKS LIKE A SOLID 1 TO 2 INCHES EVERYWHERE.
BUT THE PRECIP WILL LIKELY BECOME MORE-SHOWERY AS INSTABILITY
DEVELOPS ON WEDNESDAY. CONVECTION COULD EASILY PUT SOME PLACES
OVER 2 INCHES...ESP IF THE STORMS CAN TRAIN N-S. NOT ENOUGH OF A
WORRY FOR A FLOOD WATCH JUST YET. IT HAS BEEN VERY DRY LATELY.
THE HEIGHT FALLS WILL BE QUITE DRASTIC TO THE WEST WITH 40DAM
IN 24 HRS. THE SFC LOW WILL CONGEAL OVER IL AND DEEPEN >15 MB IN
LESS THAN 24 HRS AS IT MOVES UP TO LS. WINDS WILL BECOME STRONGER
THROUGH THE DAY ON WEDNESDAY OUT OF THE SE WITH 50KT WINDS LESS
THAN 2KFT OVERHEAD. THUS...THERE COULD EASILY BE SOME ADVISORY OR
LOW-END WARNING GUSTS IF WE CAN MIX THEM DOWN. THE TRICKY PART TO
THE FORECAST HERE IS HOW MUCH MIXING WILL ACTUALLY OCCUR. THIS
TYPE OF PATTERN TYPICALLY YIELDS MUCH LESS WIND THAN POSSIBLE AS
THE LLVL STABILITY HOLDS ON FOR A GOOD LONG WHILE...ESP IN THE
VALLEYS. SINCE THIS IS A 3RD PD TROUBLE...HAVE COLLABORATED A
WAIT AND GATHER MORE INFO STRATEGY ON POSSIBLE WIND FLAGS.
THE DEEP CYCLONE OVER THE GREAT LAKES ON THURSDAY WILL LIFT NEWD
INTO NEWFOUNDLAND BY FRIDAY. A COLDER AND DRIER WEST TO NW FLOW
ALOFT WILL FOLLOW A
SECONDARY FROPA AND SHOULD BRING LAKE EFFECT
AND HIGHER ELEVATION SHOWERS TO THE ALLEGHENIES THURSDAY NIGHT.
TEMPS STILL LOOK MARGINAL BUT WILL KEEP MENTION OF RAIN/
SNOW
SHOWERS LATE THU NGT/EARLY FRI MORNING. THE LOW LEVEL CAA WILL
STEEPEN LAPSE RATES AND RESULT IN BRISK WINDS DURING THE DAY WITH
PEAK GUSTS IN THE 30-40 MPH RANGE.
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