Wednesday, May 6, 2009

strong to severe thunderstorms possible once again today.

More showers and thunderstorms will be possible today...Some of the thunderstorms could become strong to severe once again..Main threat from thunderstorms would be large hail once again,along with some gusty winds...H5 temps are cold enough for hailers along with steep lapse rates..Limiting factor for severe thunderstorms would br wind shear,as it doesn't really look that good attm...

Tuesday, May 5, 2009

Chase pictures

These 2 are from Barron County..I will have more tomorrow,mainly on my website!
These are from Polk County..













Here are just a few of my chase pictures from today..I will have the rest on my website tomorrow...

05/05/09 chase log...

Chase account for 05/05/2009....Pictures will be posted tomorrow...

This morning chasing was the last thing I had on my mind...I was watching the radar and saw thunderstorms forming just NE of the Twin Cities...Grabbed my Cameras and headed for SW Polk County/NW ST.Croix County...Got off and on hail with the storms as I followed them East/Northeast...Got by Clayton and got hailed on big time..Ground was white, biggest hail I saw was nickel size..Called the NWS @ about 3:30 PM....Here's part of the warning....AT 330 PM CDT.NICKEL SIZE HAIL WAS REPORTED NEAR CLAYTON.SEVERE STORMS HAVE WEAKENED SIGHTLY.BUT SOME HAIL IS STILL LIKELY.PEOPLE IN BARRON & RUSK COUNTIES SHOULD REMAIN ALERT FOR POSSIBLEADDITIONAL WARNINGS.Followed the cell/cells into and through Barron County...More hail ground was white East of Barron over to Cameron...Also North of Prairie Farm....My neighbor told me the ground was white with 1 inch hail here....The hail in Central and Southern Barron County was only dime size and smaller...Maybe a few nickels stones,I didn't stop to check......
Here is a list of the warnings this afternoon...
1....WIC005-033-095-109-052030-/O.CON.KMPX.SV.W.0005.000000T0000Z-090505T2030Z/POLK WI-BARRON WI-ST. CROIX WI-DUNN WI-312 PM CDT TUE MAY 5 2009A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDTFOR NORTHWESTERN DUNN.NORTHEASTERN ST. CROIX.SOUTHWESTERN BARRONAND SOUTHEASTERN POLK COUNTIES.AT 310 PM CDT.RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM.CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE SEVERE STORM WAS LOCATEDNEAR CLEAR LAKE.& MOVING NE AT 20 MPH. ANOTHER STRINGSTORM WAS LOCATED BETWEEN STAR PRAIRIE & CLEAR LAKE.OTHER LOCATIONS IN THE WARNING INCLUDE.CLAYTON.JOEL & TURTLELAKE.PRECAUTIONARY/PREPAREDNESS ACTIONS.IF YOU ARE IN THE PATH OF THIS STORM.PREPARE IMMEDIATELY FOR LARGEHAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE & STAY AWAY FROMWINDOWS.DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.WHILE NOT IMMEDIATELY LIKELY.A TORNADO MAY STILL DEVELOP. IF ATORNADO IS SPOTTED.ACT QUICKLY & MOVE TO A PLACE OF SAFETY IN ASTURDY STRUCTURE.SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.2...WIC005-033-095-109-052042-/O.EXP.KMPX.SV.W.0005.000000T0000Z-090505T2030Z/POLK WI-BARRON WI-ST. CROIX WI-DUNN WI-335 PM CDT TUE MAY 5 2009THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DUNN.NORTHEASTERN ST. CROIX.SOUTHWESTERN BARRON & SOUTHEASTERN POLKCOUNTIES EXPIRED AT 330 PM CDT.AT 330 PM CDT.NICKEL SIZE HAIL WAS REPORTED NEAR CLAYTON.SEVERE STORMS HAVE WEAKENED SIGHTLY.BUT SOME HAIL IS STILL LIKELY.PEOPLE IN BARRON & RUSK COUNTIES SHOULD REMAIN ALERT FOR POSSIBLEADDITIONAL WARNINGS.3....THE NATL WEATHER SVC IN THE TWIN CITIES HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR. S. BARRON COUNTY IN NW WI.* UNTIL 445 PM CDT* AT 351 PM CDT.RADAR INDICATED A SEVERE THUNDERSTORM.CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 5 MILES NW OF PRAIRIE FARM.OR ABOUT 14 MILES EAST OF AMERY.AND MOVING EAST AT 20 MPH.* LOCATIONS IN THE WARNING INCLUDE. PRAIRIE FARM. HILLSDALE. BARRON. RICE LAKE. CHETEK. CAMERON.PRECAUTIONARY/PREPAREDNESS ACTIONS.IF YOU ARE IN THE PATH OF THIS STORM.PREPARE IMMEDIATELY FOR LARGEHAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE & STAY AWAY FROMWINDOWS.4....WIC005-052145-/O.CON.KMPX.SV.W.0006.000000T0000Z-090505T2145Z/BARRON WI-410 PM CDT TUE MAY 5 2009A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDTFOR S. BARRON COUNTY.AT 409 PM CDT.RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM.CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE SEVERE STORM WAS LOCATED4 MILES NO. OF PRAIRIE FARM.& MOVING EAST AT 15 MPH.OTHER LOCATIONS IN THE WARNING INCLUDE.HILLSDALE.DALLAS.BARRON.CHETEK & CAMERON.PRECAUTIONARY/PREPAREDNESS ACTIONS.IF YOU ARE IN THE PATH OF THIS STORM.PREPARE IMMEDIATELY FOR LARGEHAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE & STAY AWAY FROMWINDOWS.DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.WHILE NOT IMMEDIATELY LIKELY.A TORNADO MAY STILL DEVELOP. IF ATORNADO IS SPOTTED.ACT QUICKLY & MOVE TO A PLACE OF SAFETY IN ASTURDY STRUCTURE.SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.I do have pictures of a forming wall cloud ...for the warning above...
5....WIC005-052145-/O.CON.KMPX.SV.W.0006.000000T0000Z-090505T2145Z/BARRON WI-429 PM CDT TUE MAY 5 2009A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDTFOR CNTL BARRON COUNTY.AT 428 PM CDT.RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM.CAPABLE OF PRODUCING QUARTER SIZE HAIL & DAMAGING WINDS IN EXCESSOF 60 MPH. THE SEVERE STORM WAS LOCATED NEAR HILLSDALE.& MOVINGEAST AT 15 MPH.OTHER LOCATIONS IN THE WARNING INCLUDE.CAMERON & CHETEK.PRECAUTIONARY/PREPAREDNESS ACTIONS.IF YOU ARE IN THE PATH OF THIS STORM.PREPARE IMMEDIATELY FORDAMAGING WINDS & LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDYSTRUCTURE & STAY AWAY FROM WINDOWS.

Monday, May 4, 2009

Forecast stands/plus a reminder to severe weather thresholds

Will leave FCST stand as all seems to be right on target...See below...Current conditions and SFC Analysis will not be right....
Thunderstorms that are in the FCST are not FCSTD to be severe....If we do get some more SFC heating going..Some thunderstorms may produce some small hail,along with gusty winds...However storms should remain below severe weather thresholds..A reminder the hail threshold now stands at 1 inch!!....Any hail less than one 1 inch the storm is not severe in terms of hail...Thresholds for wind still stands at 58 MPH..

Sunday, May 3, 2009

My AFD

Forecast for the most part was left alone..Did some tweaking to the temps and also brought rain chance into the FCST for Monday night...Kept showers and thunderstorms alive right through the weekend and into the extended OTLK...As shortwaves will be hard to time during this period....Am going to keep temps in the 60s for highs and 40s for lows through out a good part of this whole FCST cycle....Looks like a great day to get the family out in the yard, for those who haven't started yard work yet..Then to end the day with a cook out...Just tell me when dinner will be ready!..

CURRENT CONDITIONS.....

Temps this morning are looking rather nice...Lower to middle 40s through out much of the FA,some upper 30s still to be had across my colder areas of Northern MN...Looking at the 1 KM satellite image we see clear skies across the area...Winds are a lot lighter this morning...

SFC ANALYSIS.....

This morning weather is staring a 1016 MB high pressure over the Northern plains...One weak trof is now over the Eastern part of WI ,this will have no effect on our weather today...Problems with severe thunderstorms still on going over parts of the TX into the Deep South this morning along a FNTL BNDRY...A 1015 MB high pressure sitting over the New England states will ensure them folks a nice Sunday.....

TODAY THROUGH MONDAY....

SFC high pressure builds into the FA through this time frame, setting us up for two nice sunshine filled days..Also warmer temps,As the high pushes off to our South/Southeast this will set up a return flow which will allow for WAA to kick in also will see some moisture move back into the area Monday afternoon....

MONDAY NIGHT THROUGH THE REST OF THE WORK WEEK...

Our first in many of shortwaves starts to provide showers and thunderstorms to the FA Mon night..Have kept the highest chances in my Northern areas of MN as this is where the best though weak forcing is setting up...This systems takes it's sweet time moving through Mon with more showers and thunderstorms....None of these thunderstorms are FCSTD to be severe....Tues Low pulls into Canada this drags a cold front into and through the area,more less a wind shift line,nevertheless this should lead to more showers and thunderstorms for the area...Yet another system in the cards for Thur and again the weekend...Like stated above these systems will be hard to time as models still have a rather large spread to them...So I just painted the whole FA with showers and thunderstorms....


LONGER TERM....

Looks to a be a active period with bouts of showers and thunderstorms....

Saturday, May 2, 2009

Lake Superior's effect on the weather..

How does Lake Superior effect the temps around the lake? many have asked this through last few weeks..The one who would know this better is Tim since he lives up there,However since I spend a lot of my free time on and around Lake Superior I will take a stab at it.....
Ok one has to remember Lake Superior is the deepest fresh body of water in the area...With the lake being over 1000 plus feet deep in spots..Most around 400 to 600 feet deep...That is a lot of cold water for the sun to heat...All lakes are always changing,however one will notice that up on or near the shore of Lake Superior...When the winds blow off the lake to the shore areas it is picking up all that cold air the lake has to offer..Hence this keep the temps down near the shore...There have been many times when I was 15 to 20 miles away from the lake and the temps were in the 90s...Once you get within 2 to 10 miles the temps dropped into the 50s/60s depending on how strong the wind is off the lake...This will at time cause a very thick fog bank to move into parts of that area..Now the same hold true in the winter....Temps on and near Lake Superior are warmer than down here...Reason is cold winds blowing over the warmer air of the lake does warm up some...Also this can produce a lot of LES is the fletch is just right along with the delta's...I will hit that topic harder towards next winter...Was it strange many time being up in Duluth on the big hill temps were nice and hot...Drive down the hill instant cold..If one never had the chance to see that first hand,I tell you it's the one thing you will never forgot in your life time...Now some have asked does Lake Superior have any effect on our weather here in Barron County....Well it sure does,just not to the degree it has one gets past Minong....Our temps really don't get effected by the lake...It's more of the moisture..Winds flowing on the lake just right can bring down drier air into the area...No moisture left by time the air makes it this far South..All it takes is a large ridge of high pressure sitting close to Hudson Bay Canada...This mainly happens in the spring and fall for this Barron County...Now in the winter we can get some LES this far South again it all depends on the fletch off the lake and how much moisture is left..As rule we needed to have very cold temps down here for that to happen and the winds have to just at the right degree to have LES...Now we won't see inches or feet,but we could see flurries or a dusting of snow from such event...Ok that's my stab at it...Like I said before Tim knows this better than me..So Tim add to this..Correct me if I'm wrong on any of this...

AFD

Inherited FSCT looks to be right on track...I did tweak temps up some,That was about it....

CURRENT CONDITIONS.....

Temps this morning starting out in the lower to middle 30s...Some returns showing up on the radar,mainly over my far Northern WI Counties,along with my Northeastern Counties..Satellite showing that area locked under clouds this morning...Rest of the FA under ptly cldy skies.....

SFC ANALYSIS......

This morning we see a cdfnt through the Southern tier of Canada....FA remain under the pesky cyclonic flow once again today...Large ridge of high pressure is located over the Northern Plains this morning...Meantime a cdfnt reaches from TX up through Southern PA....Showers and thunderstorms shall be had along and ahead of ahead of this bndry..Some storms could become severe in them areas....

TODAY THROUGH TONIGHT...

With our FA under the cyclonic flow and very cold temps aloft little SFC will kick of more instby showers..Pattern just about the same as yesterday...Some mixing down will cause temps to a couple degrees warming today...Winds up North in MN could become rather gusty through out the day...up to 25 MPH at times...Rest of the FA should see winds gusting up to 20 MPH.From the W/NW....CDFNT will ease through the areas tonight ending rain chances...This will also allow for skies to become ptly cldy..Winds will lighten up as pressure grads decrease....

SUNDAY THROUGH MONDAY....

High pressure take control of the FA with early strong May sun,along with winds becoming South this will help bring temps into the 60s most areas...I have bumped temps up some to reflect this...I still may have to go higher in the Southern areas,as latest guidance's showing temps closer to 70 in them areas....For now will stay the coarse..

TUESDAY THROUGH FRIDAY...

Showers and thunderstorms will be on the increase,as we see some systems moving along the Canadian border...Timing on these aren't going to be easy,nevertheless I did paint the whole FA with showers and thunderstorms through out the period...Temps shall stay in the 60s for the most part..Will be cooler around the shores of Lake Superior...40s/50s should work out fine there.....

LONG TERM.....

I did leave it stand for the most part...I did add a chance of showers/thunderstorms in for Sunday...If the system picks up a little more speed may have to add chances to Saturday's fcst...