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July 9-20 2012 Obs and Discussion


mattmfm

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My BYS is reporting 101. Tradewinds up the road is at 99.7 and Frederick Airport is at 100. Clouds are starting to get numerous out now.

Woo hoo, I got a mention! :) In Texas but saw from records that my station hit 100.3F at 2:22 PM. 98F in Dallas today but not much humidity.

How do ground stops typically affect incoming flights, if at all?

When I left for Texas (from BWI) the other day, had a layover in CLT. They had a ground stop due to severe T'storms and we sat on the tarmac for close to 2 hours. Not fun :(

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BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
315 PM EDT WED JUL 18 2012
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
 SOUTHEASTERN FREDERICK COUNTY IN NORTH CENTRAL MARYLAND...
 CARROLL COUNTY IN NORTH CENTRAL MARYLAND...
* UNTIL 400 PM EDT
* AT 311 PM EDT...SEVERE THUNDERSTORMS WERE DETECTED ALONG A LINE
 EXTENDING FROM TANEYTOWN TO 6 MILES SOUTHWEST OF TANEYTOWN TO
 FREDERICK...AND WERE MOVING SOUTHEAST AT 35 MPH. THIS LINE OF
 STORMS IS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND
 DAMAGING WINDS IN EXCESS OF 60 MPH.

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Is that even possible?

ha, maybe not... usually with storms on the doorstep it's an easy call tho. the movement is just iffy.. we might be better off getting a nice outflow boundary thrown at us.

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ha, maybe not... usually with storms on the doorstep it's an easy call tho. the movement is just iffy.. we might be better off getting a nice outflow boundary thrown at us.

That's how it appears to me...although I don't really know what thell I'm talking about. Glad to hear there's someone else who doesn;t know what they're talking about, either.

:P

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That's how it appears to me...although I don't really know what thell I'm talking about. Glad to hear there's someone else who doesn;t know what they're talking about, either.

:P

i didnt bring my camera so there'll probably be a really sweet shelf cloud around 530

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MESOSCALE DISCUSSION 1493

NWS STORM PREDICTION CENTER NORMAN OK

0244 PM CDT WED JUL 18 2012

AREAS AFFECTED...PORTIONS OF VA/MD/DE/NJ AND SOUTHEAST PA

CONCERNING...SEVERE THUNDERSTORM WATCH 491...

VALID 181944Z - 182115Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 491

CONTINUES.

SUMMARY...WITHIN SEVERE TSTM WATCH 491...DAMAGING WINDS/SOME HAIL

POTENTIAL CONTINUES ESPECIALLY FROM NORTHERN VA AND CENTRAL/EASTERN

MD INTO FAR EASTERN PA AND NJ. ADDITIONAL/MORE ISOLATED SEVERE TSTMS

WILL ALSO CONTINUE TO OCCUR ACROSS PORTIONS OF WESTERN/SOUTHERN

VA...ALTHOUGH AN ADDITIONAL WATCH IS NOT CURRENTLY EXPECTED.

DISCUSSION...WITHIN A NORTHEAST-SOUTHWEST ORIENTED AXIS...SCATTERED

TSTMS HAVE TENDED TO CONSOLIDATE INTO SEVERAL EASTWARD-MOVING BANDS

ACROSS NORTHERN NJ/FAR EASTERN PA AND FAR NORTHERN VA/CENTRAL MD AS

OF 1930Z. A 51 KT WIND GUST WAS RECENTLY /1929Z/ MEASURED VIA THE

LANCASTER PA ASOS. DAMAGING WINDS/SOME HAIL WILL REMAIN A DISTINCT

POSSIBILITY THIS AFTERNOON ACROSS NJ/FAR SOUTHEAST PA AND NORTHERN

VA AND CENTRAL/EASTERN MD...AS A LINE OF STORMS CONTINUES TO SPREAD

EASTWARD ACROSS A INSTABILITY AXIS /NEAR A SURFACE TROUGH/

CHARACTERIZED BY 2500-3000 J/KG MLCAPE. OTHER MORE ISOLATED SEVERE

TSTMS WILL ALSO REMAIN POSSIBLE ACROSS AREAS PORTIONS OF

SOUTHWEST/SOUTHERN VA...WITH DOWNBURSTS/MARGINALLY SEVERE HAIL

POSSIBLE.

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