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Everything posted by Jane Louise
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Morning all I'm quite excited for today as all the charts are looking good. The Met Office has kindly put Gloucestershire down for some hail and thunder. Sunshine and showers for many areas, with the heaviest and most frequent showers in Gloucestershire and Wiltshire, where they may be thundery with hail. http://www.metoffice.gov.uk/weather/uk/sw/sw_forecast_weather.html Estofex almost has the thunderstorm symbol right over me too so I feel this could be the day.
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Nothing here yet.. hoping tomorrow may be the day , Anyhows, here is a forecast from TORRO which is something to keep an eye on. TORRO CONVECTIVE DISCUSSION 2012/001 A TORRO CONVECTIVE DISCUSSION has been issued at 1200GMT on Tuesday 17th April 2012 Valid from/until: 1200 – 0800GMT on Tuesday 17th/Wednesday 18th April 2012 for the following regions of the United Kingdom & Eire: Cent and S Eire Wales Midlands E Anglia S England Channel Islands THREATS Isolated tornadoes; hail to 10mm; CG lightning; heavy rain; gusty winds SYNOPSIS Deep upper low and associated occluded surface low will move from west of Ireland to S Wales in this forecast period. An unstable rPm airmass will be in place across the area. Reasonable shear this afternoon (0-6km around 30 knots; 0-1km 15-20 knots) along with a slightly unstable atmosphere should allow some organisation of cells into short lines, and perhaps some brief rotation within the more robust updraughts. Hail up to 10mm diameter and wind gusts to 45-50mph are possible, along with a low risk of one or two brief tornadoes. CG lightning is also likely. Overnight, the low will move towards Wales. A tightening gradient on its southern flank will increase the chance of some 50mph gusts across SW England, and the increasing low-level flow to the east along with some backing may cause the tornado risk to continue along and just inland from the south coast (dotted area). The remainder of the area is expected to see reduced instability, and with much reduced shear, any showers should be disorganised. Forecaster: RPK. http://www.ukweatherworld.co.uk/forum/index.php?/topic/90613-convective-outlook-tues-17th-april-2012/page__pid__797357#entry797357
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Uk Convective General Discussion & Forecasts - April 2012
Jane Louise replied to Coast's topic in Storms & Severe Weather
Started a new thread folks .Good luck South Westerners for today I may even get something. -
Uk Convective General Discussion & Forecasts - April 2012
Jane Louise replied to Coast's topic in Storms & Severe Weather
Convection has started here, the sun is shining bright ... oooh please let me have a storm today! -
Uk Convective General Discussion & Forecasts - 2012
Jane Louise replied to kold weather's topic in Storms & Severe Weather
Your posts are always acknowledged. I for one always take note of the convective forecasts you all kindly post up and I'm sure others do too!! -
Uk Convective General Discussion & Forecasts - 2012
Jane Louise replied to kold weather's topic in Storms & Severe Weather
Very Happy Stu Lol! roll on storm season -
Uk Convective General Discussion & Forecasts - 2012
Jane Louise replied to kold weather's topic in Storms & Severe Weather
I just had an unexpected rumble of thunder lol -
Sprites And Elves All You Need To Know About Lightning.
Jane Louise replied to Jane Louise's topic in Storms & Severe Weather
SPRITE SEASON BEGINS: The first sprites of summer are starting to appear in the skies of North America. The strange thing is, summer is almost three months away. "Sprite season is beginning early this year," says Thomas Ashcraft, who photographed these specimens last night from his observatory in New Mexico: "At precisely two minutes and twenty-six seconds after midnight March 30, 2012 there was an incredibly powerful bolt of lightning in the vicinity of Woodward, Oklahoma that spawned these red sprites," says Ashcraft. "I could see them from two states away!" He also recorded VLF and shortwave radio emissions from the cluster, which you can hear as the soundtrack to this video. Sprites are electrical discharges that come out of the top of thunderclouds, opposite ordinary lightning bolts which plunge toward Earth. Sprites can tower as high as 90 km above ground. That makes them a form of space weather as they overlap the zone of auroras, meteors, and noctilucent clouds. Because they are associated with lightning, sprites are most often seen in summer months, "but in the past few days sprites have been reported in Texas (particularly near the Mexican border) as well as here in New Mexico," notes Ashcraft. So if there's lightning where you live, be alert for sprites. http://www.spaceweather.com/- 7 replies
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What Kind Of Lightning Detector Do You Use.
Jane Louise replied to Jane Louise's topic in Storms & Severe Weather
Now this is good, if you know how to make one! Here is a VLF receiver tuned to 300 kHz designed to detect the crackle of approaching lightning. A bright lamp flashes in synchrony with the lightning bolts indicating the proximity and intensity of the storm. Figure 1 shows the simple receiver which consists of a tuned amplifier driving a modified flasher circuit. The flasher is biased to not flash until a burst of RF energy, amplified by the first 2N4401, is applied to the base of the 2N4403. The receiver standby current is about 350 microamps which is nothing at all to a couple of D cells, hardly denting the shelf life. Of course, the stormier it gets, the shorter the battery life. http://www.terra.es/personal2/spooky/detect.htm -
Near Earth Asteroid Visible In Daylight
Jane Louise replied to pyrotech's topic in Space, Science & nature
Thanks for sharing. I shall be lookin out for this. -
Uk Convective General Discussion & Forecasts - 2012
Jane Louise replied to kold weather's topic in Storms & Severe Weather
I'm doing Reverse psychology here, then just maybe, maybe I'll get something lol good luck again all lol and as I type! the sun's coming out -
Southwest And Central Southern England - Regional Discussion
Jane Louise replied to Paul's topic in Regional
Fingers crossed for you I know, I'll see no storms lol.But what's new eh!