Middle Atlantic coastal storm...

By: Zachary Labe , 11:42 PM GMT on May 10, 2008

Share this Blog
0
+

"Thoughts of Flood Threat of May 11-13"
Good Saturday evening!!! As mentioned yesterday another storm is on the heals of the past storm that moved through the state. After a good soaking of rain in many areas and after a short wave moved through early this morning many areas in the west have had 2inches of rain in the last 2days. Interestingly enough a mesoscale complex formed last night over the Laural Highlands with heavy, heavy rain and embedded thunderstorms. Some radar estimates of rain approached 3inches in Somerset County. Now onto the next storm and here is another specially formatted blog for floods. And our next threat will last from May 11-13 with the highest threat area in the Laural Highlands. A low pressure coming out of the midwest will be moving through Maryland and causing a secondary low pressure to form. A fully detailed storm track explanation can be found below. This secondary low pressure will have a strong southeasterly component that will bring moisture up the eastern slopes of the Appalachians. Rain rates will be quite heavy at times as Atlantic and Gulf moisture combine. Temperatures will be pretty cool with low cloud ceilings at 1000ft so instibility looks pretty low. But with all the energy within this storm a few embedded low-topped thunderstorms cannot be ruled out especially in the southeast. Some coastal flooding may also occur in the coastal plain region of Pennsylvania near Philadelphia as easterly winds push surges up a few feet above normal. Winds will become breezy also on Monday but should not be too much of a threat. Again the highest area of flood threat is in the Laural Highlands where even flash flood risks are at a measly 1.5inches in 12hr period. The number will be doubled with this storm so flooding does look likely. A full flood risk map by myself is issued below. This is a complex storm system with many variables involved. Also it is a quite intense coastal storm for May standards. If only this was January! My biggest question is how strong the blocking high to the north will be and I am wondering if the models are in Spring mode and possibly underestimated the high's intensity. Anyway as usuall updates will be provided leading up to the event, during the event, and after the event. So stay tuned!!!

Recap on Last Rain Storm...
Well a little late, but here is a recap of the last rain storm that lasted from May 8-9. As the cold front moved in across the region a warm front also began to move northward. Warm and moist air flowed northward into a narrow alley just east of the Appalachian Mountains in western parts of the state of Virginia. Supercellular thunderstorms began to form stretching from North Carolina to Virginia. I must admit that those storms were the most intense I have seen indicated on radar in the Middle Atlantic region in quite a long time. Several tornadoes occured in the region with damage in a few areas. Also there was damage from straightline winds outside the Washington DC metro area. All of this energy stole energy from the main low pressure system that moved through Maryland and then up the eastern seaboard resulting in less rain than expected. Also a stronger blocking high formed to the north surpressing some of the precipitation to the south. Overall I was not too pleased with my forecast. My bust area was in central Pennsylvania with western Pennsylvania and eastern Pennsylvania with a pretty good forecast. Below is a verification map with total rain amounts against my forecast map. I will continue to issue these verification maps after each storm. And for this current ongoing storm I will issue wind and rain verification maps.


"Regional Radar"

(Courtesy of NOAA)

"Regional Satellite"

(Courtesy of Penn State Meteo.)

"Storm Setup"
An upper-level short wave is dropping down into the Midwest accompanied by a cold front. Behind the front will be again cooler air. The wave will move southeast into the upper Mississippi/Tennessee Valley and strengthen into a strong low pressure system. Pressures are expected to reach as low as 996mb. The low will gradually move east through Indiana and Ohio. To the south of the low strong convection is going to form with a widespread severe weather outbreak. For Saturday night the outbreak will be widespread across the southern Mississippi Valley. It is a very complex situation in which the warm front extends from Arkansas to Georgia. The dry line in Texas. The low pressure in Illinois. And the cold front in Kansas. All of these boundaries will meet across the southern Mississippi Valley where supercell thunderstorms will form. As the night progresses the storms will organize into a derecho line of thunderstorms with winds as the main threat up to 90mph straight line winds. This derecho will continue across the entire southeast. I expect damage reports well over 200 by the time the event is over. Then as the low moves east for Sunday the outbreak will shift into the Georgia and South Carolina area. Severe weather will be about as far north as the southern Virginia region. Isolated tornadoes will be found in this day of the outbreak, but wind damage from straight line winds should be the main threat. The low pressure will move then southeast across the Ohio River and gradually weaken. Though moisture will be well out ahead of the storm. Then a shift in energy will create a secondary low pressure of the Delmarva. Strong S/W energy will push a southeast wind up the eastern slopes of the Appalachians. Heavy rain will be common across east-central Pennsylvania into Maryland and northern Virginia. But to the north will be a strong surface high pressure acting as a blocking mechanism. This will prevent the heavy rain from getting to far north. Gradually by Monday night the low will move east and the cold front will filter in across the region. A snowflake cannot be ruled out after the front goes through and showers are left behind. The flakes though will have no impact and will be found at elevations above 3000ft. Overall this is a very complex storm system.

"Regional Advisories"

(Courtesy of NOAA)

"12hr Estimated Precipitation"

(Courtesy of NOAA)

"Forecast from Hydrometeorological Prediction Center"
QUANTITATIVE PRECIPITATION FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
559 PM EDT SUN MAY 11 2008

...NERN U.S....
MAIN DIFF BETWEEN THE LATEST GUID AND PRVS GUID IS A SLGTLY MORE
SRN TRACK TO THE VRY STG/UNSEASONBLY DEEP MIDLVL LOW AS IT MOVS
THRU THE MID ATLC AND OFFSHORE. ALL GUID HAS SHOWN A TREND TO
INCRS PCPN AMTS...WHICH SEEMS TO BE LINKED TO THE MAIN BAND OF
PCPN BCMG NRLY STNRY AS IT PIVOTS ARND THE MIDLVL SYS. STG MIDLVL
HGT FALLS/UPR DIFL AND LEFT EXIT REGION DVRG WL PROMOTE A BROAD
REGION OF LIFT. THE LOLVL FLOW IS ALRDY REACTG TO THE APRCHG
MIDLVL SYS WITH A RAPID INCRS OFF THE ATLC THAT WL DRAW IN DEEP
MSTR AND SUPPORT SOME ELEV INSTBLTY. A PW PLUME FM THE GULF AND
ATLC ARE XPCTD TO MERGE WITH PWS ARND ONE INCH FEEDG INTO THE
REGION. THESE VALUES ARE NR NRML. 8H-7H FLOW OF 30-50 KTS WL
SUPPORT MOD/STG MSTR FLUX/THETA-E ADV WHILE STG LOLVL FLOW
SUPPORTS STG UPSLOPE INTO HIER ELEVS. MSTR FLUX ANOMALIES ARE FCST
TO BE ARND TWO STDS ABV NRML TNGT ACRS THE REGION. XPCT THE STG
DYNAMICS TO COMPENSATE FOR THE NR NRML MSTR LVLS AND THINK THIS IS
THE REASON FOR THE WETTER MDL SOLUS. XPCT A LRG REGION OF LGT/MOD
PCPN AMTS WITH A SWATH OF 1-3 INCH RNFL ALNG THE MASON-DIXON LN
WITH ISOLD HVIER AMTS OVR THE FAVORED UPSLOPE REGIONS

"HPC Forecast 3-day total QPF map"


"Model Analysis"
Well lets take a look at the current models. Below are the GFS and NAM models which have total precipitation through 60 hours posted below as of the 12z model run. Also below is the simulated radar from the NMM model for 24 hours out from that 12z model run also. Models have been back and forth with positions of low centers. Recently the NAM has trended southeast and is now considered the outlier. The 12z GFS is in pretty good agreement with the 12z EURO model. It does appear though that the storm is moving at a slower intensity than what the models indicate on their maps, this may make matters worse for heavy rain falling. Overall though agreement in models looks pretty good. Only concern is the strength of the blocking high to the north of the lows. Also now appears that the secondary low pressure is forming farther south in the Carolinas instead of the Delmarva, again this may prolong the entire event. Stay tuned for further updates on short term models.

"GFS model total precipitation"


"NAM model total precipitation"


"NMM model future simulated radar at height of storm"

(12pm Monday)

"12hr Flash Flood Guidance"

(Courtesy of NOAA)

"My Forecasts"
Alrighty below is a look at all of my forecasts divided into subgroups...

Wind Threat...
Southeast winds will be a threat Sunday night across many of the ridge tops. High Wind Warnings are in affect for parts of the Laural Highlands. Already wind gusts over 50mph have been reported along with damage reports coming in. Trees and wires have been reported down in the following counties... Westmoreland, Fayette, and Somerset Counties. Winds from the southeast will begin to die down later Sunday evening. But through Monday night breezy conditions will persist, especially near the Atlantic Coastal Plain Region in Pennsylvania near Philadelphia. A brisk low-level jet with about 65knots winds. The strongest of winds will not mix down to the surface, but still it will be breezy with an occasional 45mph gust as dynamic conditions during the heavy rain mix some higher gusts from the jet down to the surface. Overall the worst of the wind should be gone by early Monday morning. A wind gust forecast verification map will be issued after the storm is over.
"My Forecast Wind Map"


Rain Threat...
The low pressure is continuing to transfer energy to a secondary low pressure that should form somewhere along the Atlantic Coast. Rainfall will begin to pivot on radars and form as east to west type of rain band as the night progresses. Atlantic moisture will hit its max with PWATS several deviations above normal. Already that is occuring in Virginia and southern Maryland where up to 2.5inches has already fallen. The heaviest of rain in Pennsylvania should fall in the blue area indicated below in my rain map where over 3inches of rain may fall. A verification map will be issued at the end of the storm for final rain totals against my forecast totals.
"My Forecast Total Rain Map"


Flood Threat...
Overall flood threat should be minor for most waterways. Though in the Laural Highlands it could be in the moderate stage on some smaller streams after up to three inches of rain in the last three days and another three more inches to come. Urban and small stream flooding will be the primary threats along with some coastal flooding. See more details on coastal flooding below. Major rivers should see level rises but only probably to caution stage for most river level reading locations. Below is my flood risk map area with the Laural Highlands most at risk for some sort of flooding. Flood watches are out for many areas across southern Pennsylvania. A verification map will be issued at the end of the storm for flood reports against my forecast map.
"My Flood Risk Map"


Coastal Flooding Threat...
As the strengthening coastal low pressure moves off the east coast gale force winds will develop from the northeast pushing water farther inland than normal. At the high tides in Philadelphia which is 8:22am, heavy rain will already have occured and the low pressure will gain even more strength. Water levels along the Delaware Bay will approach moderate flood levels in a few locations. A coastal flood warning is in affect for Philadelphia and Delaware Counties in Pennsylvania. Beaware while commuting Monday morning as the flooding will be reaching its peak during those key commuting hours.

Thunderstorm Threat...
Instibility is very low as cloud bases continue to lower, but still shear levels are high along with southern convection from Virginia streaming northward may cause a few thunderstorms in southern Pennsylvania. Nothing too significant or severe looks likely though. But any thunderstorms will continue to enhance the heavy rain.

Snow Threat...
This section is sort of for laughs. But anyway yes snow may occur in the highest of elevations during Monday night. As the secondary low pulls away 850s will cool below freezing. Also surface temperatures that night will be in the mid 30s in some areas. Left-over moisture will create a few rain/snow showers in the northwest and northeast mountains that have elevations of over 2600ft. So do not be surprised to see a few snowflakes in the mountains for Monday night.

Aviation Threat...
As far as conditions are concerned they appear to be in the IFR range across many areas tonight with patchy areas of LIFR in the heaviest of rain. Cloud bases will lowers of the common orographic regions with ceilings at around 1000ft in some areas. Fog may be a threat too as dewpoints and temperatures have a limited spread. Wind shear levels are very high with 40knot winds only a few thousand feet above the surface. As the low pulls away these winds will mix down to the surface. Overall if traveling expect major delays with cancellations over the next 24hours. Drier and calmer conditions will move in for Tuesday.

"Conclusion on Flood Threat"
For many people it is a wonderful mother's day. But for the thousands of people in the southeast it is a day of the renewal of their lives and the start of the rebuilding process. Over 20 people lost their lives overnight last night as a derecho marched across many states. Over 350 severe weather reports occured yesterday and again there are more today. Our thoughts and prayers let them be with the victims of the deadly tornadoes. Anyway onto our state's weather. Overall I am not expecting too widespread of flooding. But none the less there will be areas of flooding especially in the Laural Highlands. This is a beautiful mid-Spring nor'easter that will cause heavy rain and high winds to affect much of the state of Pennslvania and entire Middle Atlantic region. The New England states should not have that much of an impact. Rain is already beginning to fall here north of Harrisburg and will last for over another 24 hours. For true weather lovers, like myself, this will be an absolutely fascinating storm to follow making forecasting all the more fun. I hope to provide some tidbits on coastal storms like this and maybe add some interesting forecasting techniques that I like to use. Again a recap will be issued after the storm is over along with 2 verification maps for wind gusts and rain totals against my forecasts. I feel very confident on my maps I made yesterday and I am going to make no changes to them. Let us all monitor and see what happens with this unsuall May coastal storm. Have a great day!!!

"Storm Recap"
COMING AFTER THE STORM!!!

"Here north of Harrisburg 2008 statistics"
(Severe Weather Stats...)
Severe Thunderstorm Watches- 0
Severe Thunderstorm Warnings- 0
Tornado Watches- 0
Tornado Warnings- 0
Total Thunderstorms- 9

(Precipitation Stats...)
Flood Watches- 4
Flood Warnings- 3
Monthly Precipitation- 1.20inches
Yearly Precipitation- 14.86inches

(Temperature Stats...)
Heat Advisories- 0
Excessive Heat Warnings- 0
90degree days- 0

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 73 - 23

Page: 1 | 2Blog Index

73. Zachary Labe
7:14 PM GMT on May 13, 2008
Thanks for the reports. Now I am in the process of compiling data on the storm. Expect a blog to be issued sometime on the storm either today or tomorrow.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
72. JDinWPA
1:21 PM GMT on May 13, 2008
Good morning Bliz. We had a total of .47" since saturday night. The temp dropped to 35 this morning with totally clear skies. I had covered the strawberries last night, just to be on the safe side.

Looks like it will be a beautiful day. Enjoy the sunshine!
71. TheRasberryPatch
12:42 PM GMT on May 13, 2008
rain totals for the storm that began on Sunday, Mothers Day 5/11
0.76"
21mph wind gust was the high and it occurred a couple of times
what is amazing is we are half way through the month and the heating degree days are over 100 higher than cooling degree days. a bit unusual from the past few years, it seems.
april had only 32 cooling degree days and so far may has 19.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
70. TheRasberryPatch
1:21 AM GMT on May 13, 2008
Thanks Blizz. I looked at a few webcams from the delaware beaches and they didn't look quite as bad, but they might have been at low tide.
From what I have heard the residents of the Atlantic coast fear nor'easters more than hurricanes. i believe they get more damage from a nor'easter if it hangs around long enough.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
69. Zachary Labe
1:01 AM GMT on May 13, 2008
TheRasberryPatch- I know you have been curious about the beaches, so here is video off of New Jersey southern coastline from the Nor'easter...Link
Member Since: December 14, 2007 Posts: 284 Comments: 15112
68. Zachary Labe
12:34 AM GMT on May 13, 2008
8:30pm update...

Good evening!!! Wow, what an interesting storm unfolded across Pennsylvania. From snow in central Pennsylvania to hurricane force winds in New Jersey. From 6inches of rain in northern Maryland to moderate level coastal flooding off the Delaware Bay. Tomorrow I am going to post a new blog which will recap all aspects of the unusuall Mid-Spring Nor'Easter. Thanks to all for their storm reports and I would appreciate if everyone could post a final total for rainfall and max wind gust tomorrow morning after all the storm has shifted out of the region. These totals I will incorporate into my verification maps coming tomorrow for wind, rain, and flooding. I will test these totals against my forecasts. Overall I believe my forecast turned out just about wonderful. For tonight drizzle will persist in the southeastern sections with gradually clearing from north to south. Winds will calm as high pressure moves in from the northwest. Radational cooling may drop temperatures below freezing in the north. Beware of frost. And statewide fog could be a definite problem tomorrow morning. Could be dense in some areas. Then sunshine will finally come out with temperatures reaching up to 70degrees.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
67. Zachary Labe
12:27 AM GMT on May 13, 2008
hurigo- Thanks for your rainfall report. Interestingly enough off of New Jersey a 76mph gust was reported I believe on a barrier island.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
66. TheRasberryPatch
12:25 AM GMT on May 13, 2008
sorry about the sailboat. i prefer power boat anyday. just love to be cruising along the water at a good speed. not to mention i love to fish and crab. can't imagine too much drift fishing on a sailboat. that is a lot of the fishing i do. you drift with the current as your minnow or shiner drags along the bottom fishing for flounder.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
65. hurigo
11:09 PM GMT on May 12, 2008
Hubby has a sailboat, but I just can't get comfortable on it.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
64. hurigo
11:08 PM GMT on May 12, 2008
I'm thinking the same thing. I have a Carolina Skiff and I cannot wait to get out on that thing and do some creek creeping.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
63. TheRasberryPatch
11:06 PM GMT on May 12, 2008
fishing and crabbing and cruising in the boat is whats on my mind. : )
i need some warm temps to make it comfortable on the boat
Member Since: January 26, 2007 Posts: 72 Comments: 6256
62. hurigo
10:14 PM GMT on May 12, 2008
Hi Patch,
Sorry I can't give you a first-hand report as I am not on the beach (but I wish I was). I can tell you though that it is the winds tonight that will tell the story. Expecting a tight pressure gradient from the offshore low and the high pressure system causing north winds and gusts as high as 60 MPH for Currituck NC "WITH A WIND ADVISORY IN EFFECT ACROSS
ALL OTHER COASTAL LOCATIONS ALONG THE ATLANTIC AND CHES BAY (SEE
PRODUCT WBCNPWAKQ FOR MORE DETAILS)." Whatever that means.

I think you have fishing on your mind! Not sure if this bodes well for you or not.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
61. TheRasberryPatch
9:32 PM GMT on May 12, 2008
i see the beaches of the delmarva are getting some strong gusts of wind. and they have coastal flood warning. in lewes, de they had a gust of 60mph @ 10am. and a lot of other areas had gusts of 50mph.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
60. TheRasberryPatch
9:25 PM GMT on May 12, 2008
how bad is the surf hurigo? did you have much beach erosion?
Member Since: January 26, 2007 Posts: 72 Comments: 6256
59. hurigo
9:17 PM GMT on May 12, 2008
Yesterday 0.86 rain. Today 0.07.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
58. hurigo
9:00 PM GMT on May 12, 2008
We have high wind warning and coastal flood warning.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
57. hurigo
8:58 PM GMT on May 12, 2008
Well Blizz,
I have a short attention span and not the highest aptitude for all this stuff, but reading over your blog, I'm guessing that you put out a pretty accurate forecast.

We had windy, cold rain today and I got soaked. I would like to report to you the amount of rain, as I know you'll ask that. Trouble is I haven't figured out yet how to find out what the rain totals were.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
56. jthal57
8:45 PM GMT on May 12, 2008
Rainfall in Northampton County:
Martins Creek .31"
Easton .36"

55. TheRasberryPatch
8:41 PM GMT on May 12, 2008
i guess i was expecting more rain. i have 0.72" for the storm. i am pleased we didn't get too much. i was afraid my garden was going to get swamped.
i need plenty of sun for the weekend, blizz. this storm seems like it belongs in mid april not may.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
54. Zachary Labe
7:42 PM GMT on May 12, 2008
TheRasberryPatch- No the storm actually stayed pretty according to track. The heaviest rain was forecast in the Baltimore area. I am approaching .9inches. Overall my forecast appears pretty right on except for a few minor eastern Pennsylvania exceptions. This was quite a storm with alot to recap. So a new blog will be devoted to a recap of the storm which will cover all aspects.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
53. TheRasberryPatch
7:34 PM GMT on May 12, 2008
how did you do for rain from this storm blizz? i am guessing the storm stayed south. it seemed watching the radar last night that baltimore got hit hard with rain.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
52. Zachary Labe
7:14 PM GMT on May 12, 2008
JDinWPA- Yes I had about the snow and will have more on it later today.


***Thanks for all of the storm reports and keep them coming!!!
Member Since: December 14, 2007 Posts: 284 Comments: 15112
51. TheRasberryPatch
6:21 PM GMT on May 12, 2008
220pm
drizzling most of the afternoon
0.25" for the day of rain
0.68 for the storm
50.4F
Member Since: January 26, 2007 Posts: 72 Comments: 6256
50. jthal57
1:43 PM GMT on May 12, 2008
9:30 am:
46 F, about a .10" of rain around the Easton area, wind gust of 31 mph at 3 am
49. JDinWPA
1:18 PM GMT on May 12, 2008
Good morning all! We had a low of 41 this morning and an additional .08" overnight. I am hearing about snow in Johnston and the laurel highlands this morning so I happy with the 41 and rain drizzle. At the moment the sky has brightened enough to throw light shadows so maybe the day won't be a total washout like yesterday.

Have a good one!
48. TheRasberryPatch
1:03 PM GMT on May 12, 2008
temp 45 derees @ 9am
rain since yesterday evening 0.64"
wind gust 21mph @ 3am and 8am
Member Since: January 26, 2007 Posts: 72 Comments: 6256
47. Zachary Labe
10:21 AM GMT on May 12, 2008
Wild morning across the state...

light snow in altoona (Mid May)
50mph winds in southeast PA
2-3inches of rain already in some areas
Flood warnings out for Franklin and Adams County
Member Since: December 14, 2007 Posts: 284 Comments: 15112
46. Tazmanian
2:07 AM GMT on May 12, 2008
add this site to your links if you love severe weather this is the site for you this is a site where you can SevereStudios Live ChaseCam Network with out paying $1,000 to go Chase and its free i was tracking matt and brett last night this site is a most have and they have a chat room there has well

Link
Member Since: May 21, 2006 Posts: 5091 Comments: 114924
45. JDinWPA
1:33 AM GMT on May 12, 2008
Good evening Bliz. Today we had a high of 52 and .38" of rain so far. Some really nasty gusts went through this afternoon but it's settled down now. At the moment it's down to 45, but the prediction for Tuesday morning is 38. It's more like April than April was.
44. Zachary Labe
1:00 AM GMT on May 12, 2008
900pm Here north of Harrisburg...

48degrees
max wind gust.... 20mph
current rain rate.... .14inches
rainfall total.... .31inches

***Signing out for the night, have a great evening!!!
Member Since: December 14, 2007 Posts: 284 Comments: 15112
43. Zachary Labe
12:53 AM GMT on May 12, 2008
TheRasberryPatch- They are getting some minor urban flooding with flood advisories out. They will miss the worst of the coastal flooding and winds. A few severe storms occured in the region, but not too many damage reports.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
42. TheRasberryPatch
12:50 AM GMT on May 12, 2008
hey blizz what type of impact on the delmarva beaches? are they too far south for a strong impact of winds and high tides and flooding?
looks like DC is getting hit hard with rain.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
41. Zachary Labe
12:49 AM GMT on May 12, 2008
Wow look at high temperatures tomorrow. Here is Reading's forecast from NWS. Remember this is mid May.

Monday: Rain, mainly before 4pm. High near 47. Breezy, with a northeast wind between 15 and 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
40. Zachary Labe
12:25 AM GMT on May 12, 2008
Heavy rain pivoting on northward into Pennsylvania...

Member Since: December 14, 2007 Posts: 284 Comments: 15112
39. cyclonebuster
12:17 AM GMT on May 12, 2008

15 NOW

Link
Member Since: January 2, 2006 Posts: 127 Comments: 20400
38. Zachary Labe
12:15 AM GMT on May 12, 2008
Latest surface map...

Member Since: December 14, 2007 Posts: 284 Comments: 15112
37. Zachary Labe
12:14 AM GMT on May 12, 2008
815pm Here north of Harrisburg...

50degrees
max wind gust.... 20mph
current rain rate.... .10inches
rainfall total.... .22inches



***All sections have been updated now in my blog.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
36. TheRasberryPatch
12:08 AM GMT on May 12, 2008
805pm
max wind gust...22mph @1136am
rain rate....0.15inches
total...0.23"
Member Since: January 26, 2007 Posts: 72 Comments: 6256
35. Zachary Labe
12:05 AM GMT on May 12, 2008
hurigo- Well I am glad the discussion help out.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
34. hurigo
12:04 AM GMT on May 12, 2008
Hey Blizz,
Weather alarm has been sounding pretty steadily for the last two hours. Worst of the storms are now just about to exit stage Atlantic. Wanted to let you know that the "troposphere" discussion we had the other day really was helpful as we went through this latest batch. WHen it was safe to have TV on, I did see the local experts showing 3-D images of the storms. I had known about the bow echos before, but this time the new technology was able to show us just how high up those storms went.
Member Since: October 9, 2005 Posts: 100 Comments: 6729
33. TheRasberryPatch
11:21 PM GMT on May 11, 2008
that is an amazing comma system there.
blizz and sully you are probably right about the cold temps and soil affecting the cumcumber plants. they looked great last evening and we did hit 40 last night. hopefully, they will last through this deluge of rain and the sun will heat up the soil.
Member Since: January 26, 2007 Posts: 72 Comments: 6256
32. Zachary Labe
11:15 PM GMT on May 11, 2008
715pm Here north of Harrisburg...

52degrees
max wind gust.... 20mph
current rain rate.... .12inches
rainfall total.... .06inches
Member Since: December 14, 2007 Posts: 284 Comments: 15112
31. Zachary Labe
11:04 PM GMT on May 11, 2008
charlesimages- That image looks like it has an eye.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
30. charlesimages
10:56 PM GMT on May 11, 2008
That's a nice shot there.

Yeah I will give it my best shot, literally LOL

another look here

Member Since: May 25, 2006 Posts: 347 Comments: 29278
29. Zachary Labe
10:53 PM GMT on May 11, 2008
charlesimages- Sounds good! I am not a technology type of person to figure things out like that.
Member Since: December 14, 2007 Posts: 284 Comments: 15112
28. Zachary Labe
10:52 PM GMT on May 11, 2008
Another look...

Member Since: December 14, 2007 Posts: 284 Comments: 15112
27. charlesimages
10:52 PM GMT on May 11, 2008
I saved a couple images already B92. I can hardly believe it myself. If you look at the 24hr water vapor loop you can really see it come together, pretty awesome. I will be getting the loop recorded tonight sometime, going to set my camera up to the computer screen and give it a try. I wish we could save java loops!
Member Since: May 25, 2006 Posts: 347 Comments: 29278
26. Zachary Labe
10:49 PM GMT on May 11, 2008
Look at this thing...

Member Since: December 14, 2007 Posts: 284 Comments: 15112
25. charlesimages
10:49 PM GMT on May 11, 2008
*stumbles into the room*

LANDCANE LANDCANE LOL

What's up?
Member Since: May 25, 2006 Posts: 347 Comments: 29278
24. sullivanweather
10:43 PM GMT on May 11, 2008
Raspberry,

You should dig one up an examine the root system. They could have a mold/rot or could be under attack from bugs or grubs.

Cucumbers usually require warm soil (>65 degrees) in order to grow well and lately that hasn't been the case.

It'll be better to dig one up now and catch anything that could be wrong rather than waiting it out and perhaps losing them and having to replant later in the season. You might save yourself a week.
Member Since: March 8, 2007 Posts: 273 Comments: 12612
23. Zachary Labe
10:40 PM GMT on May 11, 2008
sullivanweather- Ok I will check to see if you updated pictures later on this evening. The rain is becoming a little more intense here all of a sudden.
Member Since: December 14, 2007 Posts: 284 Comments: 15112

Viewing: 73 - 23

Page: 1 | 2Blog Index

Top of Page

About Blizzard92

Cornell University- Atmospheric Sciences Undergrad; Research Assist.- Onset of Spring Indices Toolbox; Interests- Small spatial scale climatolology

Local Weather

Mostly Cloudy
85 °F
Mostly Cloudy

Blizzard92's Recent Photos

Personal Weather Stations

Linglestown, PA
Elevation: 520 ft
Temperature: 24.2 °F
Dew Point: 15.2 °F
Humidity: 68%
Wind: Calm
Wind Gust: 9.0 mph
Updated: 10:37 AM EST on January 18, 2014

About Personal Weather Stations