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Hello!
Finally I found some time from preparing for final exams to finish
processing of my thunderstorms data from Severe thunderstorms on Tuesday.
The damage was actually so big that more that tens of thousands of people
were without power.
Tarmo Tanilsoo
Here is the report
--
I knew about these thunderstorms approaching since Saturday, when they were
mentioned in EMHI's 4 day forecast. Finally, they arrived here.
Since the morning, I was looking for thunderstorms. Whole day, I was
checking thunderstorm radars. At afternoon, I measured the record high
temperature of year 2005. After 14:00, towering cumulus appeared in the sky.
At 14:54, I discovered a thunderstorm. Preliminary lightning number was 10
per minute. At about quarter past 15, I issued a thunderstorm warning for
Laguja. At 15:37, thunderstorms arrived to Kuressaare. At 16:00, I posted a
message to my weather forum about eyewitness report that thunderstorms are
arriving to Kuressaare, dark cloud is in southern sky and thunder is being
heard. Sky started to get cloudy in Laguja. Some Altocumulus Lenticularis,
Towering Cumulus and white hazy clouds had appeared to the sky. At 16:47, I
counted 32 lightnings per minute. Thunderstorm was moderate according. At
16:50, I saw some suspicious clouds in the sky. Lightning radars showed,
that thunderstorms are getting on Mainland. I've checked one of my friends
weather site and at his place, temperature was dropped 7 degrees during the
thunderstorm. At 17:23, there were two suspicious dark cloud. One was at
South(170°) and second one in West(260°). As found out later, the first one
was thunder cloud. At 17:29, I counted 50 lightnings per minute from AM
band. That meaned that thunderstorm was severe. Noises are very loud and I
go listening for any thunder sound. And a few minute after I step out and
looking the cloud in souther nsky, I hear thunder. Clock shows 17:32. At
17:41, the thunderhead center is at 170 degrees, direction 350 degrees. At
17:53, light rain started and strong wind rose. I turned computer off.
Thunder arrives above Laguja and it ends for 19:20. The sky is totally
cloudy, I see dark cloud of of thunder in overcast sky. It looks that all is
over for today. Temperature has already dropped down to 20-21 degrees. But
no! Already, I could see a dark cloud approaching from South. The thunder
sounds from East go calm and you could hear new thunder from South. And
suddenly, at 19:34, I saw a very dark cloud coming thru. It gets darked and
darker. It is moving even faster than clouds during a gale. And then I found
out that the slowly darkening area what I thought to be edge of thunder
cloud, was actually a WALL CLOUD! A supercell thunderstorm was approaching
to my home area. At 19:38, strong squall winds arise. They dissipate at
20:00. It is hard to understand whether it is raining or just the strong
winds are blowing. At 19:40, I see some mammatus type clouds. At 19:45, I
step out from kitchen in the house. Windows are open to North over there. I
could see the edge of the wall cloud yet. And then I see it - two FUNNEL
CLOUDS are coming down. But they dissipate before they reach the ground. I
want to run to my observing site and grab my compass to start measuring
angles, but then I recall that I already have my compass with me. One funnel
cloud, even two! It's azimuth is 50 degrees(NorthEast). At 19:49, I saw
another funnel cloud, what dissipates quickly. Still, very strong winds are
blowing. Thunder arrives above us and bringing us many rain. Next hours,
Lagujas pends with thunderstorms. For 22:00, thunder clouds have gone so
much away, that you cannot hear thunder anymore. At 22:06, it is covering
90% of the sky, but no thunder sound anymore. Azimuth of its center is 80
degrees. I saw a fog at 22:19
The total damage:
Tens of thousands people without power
Trees down in some places
Radio transmission interrupted.
Kogutud andmed:
22:06 16.7 Thunderstorm location 80 degrees(covering much of the sky)
22:00 17.7
21:59 17.5
21:58 18.1 Thunder was heard(?)
21:57 17.9 Thunder was heard(?)
21:56 18.4
21:55 17.8
21:54 18.2
21:53 18.5 Wind
21:52 18.9 Wind
21:51 18.1
21:50 18.0
21:49 17.8
21:48 17.9
21:47 17.0
21:46 16.1
21:45 16.1
21:44 15.9
21:43 15.6 Rain stopped
21:42 15.5
21:41 15.6
21:40 15.5 Thunder was heard
21:39 15.9
21:38 16.4
21:37 16.7
21:36 16.7 Thunder was heard
21:35 16.5 Light rain
21:34 15.8
21:33 16.6
21:32 16.8 Moderate rain
21:31 16.5
21:30 16.1 Thunder was heard
21:29 16.1 Thunder was heard
21:28 16.8 Loud thunder was heard
21:27 16.8
21:26 16.4
21:25 16.6 Lightning 3 kilometers North, thunder was heard
21:24 17.1
21:23 17.4 Signs of sky clearing up
21:22 17.2
21:21 16.8 Thunder was heard
21:20 17.4 Thunder was heard
21:19 17.3 Thunder was heard twice
21:18 16.2 Lightning 2 kilometers North, about 55 long loud thunder was
heard
21:17 17.1 Thunder was heard
21:16 16.8
21:15 17.1
21:14 17.4
21:13 17.0 Thunder was heard
21:12 17.2 Thunder was heard
21:10 17.3
21:09 17.2 Thunder was heard twice
21:08 17.5
21:07 17.2
21:06 17.4
21:05 17.1 Very loud thunder was heard
21:04 16.3 Three lightnings in a row 1 kilometer North
21:03 17.4
21:02 17.4 Thunder was heard
21:01 17.3 Thunder was heard
21:00 16.9 Thunder was heard
20:59 17.1 Thunder was heard
20:58 17.0 Thunder was heard 3 times, last two were loud
20:57 17.3 Thunder was heard
20:56 17.1 Thunder was heard
20:55 17.6 Thunder was heard
20:54 17.9
20:53 17.4 Thunder was heard twice
20:52 17.6 Loud thunder was heard. Total thunder sounds count was 2
20:51 17.7 Thunder was heard twice, lightning 2 kilometers North
20:50 17.7 Thunder was heard, strong rain has lasted about 10 minutes
20:49 17.6 Thunder was heard
20:48 17.6 Thunder was heard twice
20:47 18.1 Loud thunder was heard. It lasted about 60 seconds
20:46 18.8 Lightning 2 kilometers North
20:45 19.3 Thunder was heard
20:44 19.3 Thunder was heard
20:43 19.3 Thunder was heard
20:42 19.0 Thunder was heard
20:41 19.0
20:40 19.3 Lightning 6 kilometers North, thunder was heard
20:39 19.5 Thunder was heard
20:38 19.7 Thunder was heard
20:37 19.4
20:36 19.1 Thunder was heard
20:35 19.8 Thunder was heard
20:34 19.5 Thunder was heard twice
20:33 19.7 Thunder was heard twice
20:32 19.7 Thunder was heard twice
20:31 19.9 Thunder was heard twice
20:30 19.9 Thunder was heard
20:29 19.0 Thunder was heard twice, last one was loud. Lightning 1 kilometer
North
20:28 19.4 Thunder was heard 4 times
20:27 19.5 Thunder was heard
20:26 19.8 Thunder was heard twice, last one loud. Lightning 1 kilometer
North
20:25 19.1 Thunder was heard 2 times
20:24 19.6 Thunder was heard 3 times, strong rain
20:23 19.6 Moderate rain, thunder was heard twice, last one loud.
20:22 19.9 Thunder was heard twice
20:21 20.0 Thunder was heard twice, strong rain
20:20 20.3 Thunder was heard twice
20:19 20.2 Thunder was heard twice, last one loud
20:18 20.0 Loud thunder was heard
20:17 19.5 At least two times, thunder was heard
20:16 19.1 Thunder was heard
20:15 19.6 Thunder was heard 3 times, last two were loud
20:14 19.8 Thunder was heard twice, lightning 8 kilometers NorthEast
20:13 19.8 Thunder was heard twice
20:12 19.6 Thunder was heard twice, last one loud. Moderate rain
20:11 19.9 Lightning 1 kilometer North, thunder was heard
20:10 19.3 Thunder was heard 3 times
20:09 20.1 Thunder was heard 5 times
20:08 19.4 Lightning 3 kilometers North. Loud thunder was heard twice
20:07 19.6 Lightning 1 kilometer North
20:06 20.4 Loud thunder was heard. Lightning 1 kilometer North
20:05 20.3 Loud thunder was heard, Lightning 1 kilometer NorthNorthEast
20:04 20.0 Loud thunder was heard
20:03 20.2 Thunder was heard, lightning 3 kilometers North
20:02 20.4 Thunder was heard 3 times, last one loud
20:01 20.1 Thunder was heard twice, last one loud. Squall wind
20:00 20.3 Thunder was heard twice, squall wind
19:59 19.3 Thunder was heard twice, squall wind. Lightning 2 kilometers
North. Strong thunder associated with the lightning
19:58 19.4 Thunder was heard, squall wind
19:57 20.4 Strong rain, squall wind. Thunder was heard 3 times, last one
loud
19:56 20.4 Squall wind, thunder was heard 3 times
19:55 19.8 Squall wind, thunder was heard 2 times
19:54 19.3 Squall wind, thunder was heard 2 times. Strong rain
19:53 20.9 Light rain, thunder was heard
19:51 Squall wind, thunder was heard. Lightning 4 kilometers NorthEast
19:50 20.8 Squall wind
19:49 Funnel cloud in direction 70 degrees
19:48 I started observing Funnel clouds
19:47 20.6 Squall winds
19:46 20.8 Squall winds, Two funnel clouds in direction 50 degrees
19:45 21.6 Squall winds, Funnel cloud in direction 50 degrees.
19:44 20.9 Squall winds, thunder was heard
19:43 21.8 Squall winds, thunder was heard
19:42 21.3 Squall winds, thunder was heard
19:41 21.3 Thunder was heard, squall winds
19:40 22.4 Thunder was heard. Squall wind estimatedly at 8-9 Beaufort
forces. As I didn't want to risk my life, I didn't went outside to measure
them. Mammatus clouds
19:39 21.8 Squall winds, almost totally black. Hard to anything
19:38 22.0 Squall winds, thunder was heard. Gets darker outside
19:37 21.3 Thunder was heard twice
19:36 21.6 Wall cloud is approaching very fast. It is moving same fast as
the clouds during a northern storm.
19:35 21.3 Thunder was heard. It is a supercell! Wall cloud in the sky
19:34 21.0 Thunder was heard. I found out that it is a
19:33 21.7 Thunder was heard twice
19:32 21.6 Thunder was heard. Thunderstorm heading to 10 degrees
19:31 21.0 Thunder was heard twice
19:30 21.1 Thunder was heard, Thunderstorm location 240 degrees
19:29 21.1 Thunder was heard twice
19:28 20.6 Thunder was heard 4 times
19:27 20.8 Thunder was heard
19:26 21.9 Thunder was heard
19:25 21.9 Thunder was heard
19:24 21.6
19:23 20.9 Thunder was heard. Thunder cloud's location at 260 degrees
19:22 21.5 Thunder cloud's location at 60 degrees
19:21 20.8 Thunder was heard
19:20 21.9
19:19 21.4 Thunder was heard
19:18 21.6 Thunder was heard
19:17 21.7 Thunder was heard twice
19:16 21.2 Thunder was heard
19:15 20.6 Thunder was heard 3 times
19:14 20.8 Thunder was heard. New thunder cloud in Southern sky.
19:13 20.6 Light rain, thunder was heard twice. Wind at 3 Beaufort forces
19:12 20.6 Thunder was heard twice. Light rain
19:11 20.7 Thunder cloud's locaton at 75 degrees. Thunder was heard twice
19:10 20.9
19:09 20.2 Thunder was heard 3 times
19:08 21.4 Thunder was heard twice
19:07 21.9 Thunder was heard twice
19:06 20.8 Thunder was heard twice
19:05 20.7 Thunder was heard twice
At about 19:05, rain stopped
19:04 20.6 Thunder was heard 2 times, second was loud
19:03 20.8 Thunder was heard 3 times, second loud
19:02 21.5 Thunder was heard 3 times
19:01 22.2 Thunder was heard twice, last one loud
19:00 22.0 Thunder was heard twice, last one loud
18:59 22.4 Thunder was heard twice
18:58 21.9 Thunder was heard twice
18:57 Thunder was heard
18:56 21.3 Thunder was heard 3 times
18:55 20.9 Light rain, thunder was heard twice, first one loud
18:54 20.8 Moderate rain, Thunder was heard twice, last one loud
18:53 20.6 Loud thunder was heard
18:52 20.6 Thunder was heard twice, first one loud
18:51 21.9 Very loud thunder was heard, very strong rain
18:50 21.4 Thunder was heard, strong rain
18:49 21.9 It gets lighter, thunder was heard. Strong rain
18:48 21.6 Thundert was heard 4 times, last one loud. Moderate rain
18:47 21.5 Strongerst rain during this thunderstorm, thunder was heard.
18:46 21.8 Thunder was heard twice, last one very loud
18:45 21.4 Loud thunder was heard twice, last one was heard very loud
18:44 21.3 Thunder was heard 3 times, moderate rain
18:43 22.1 Light rain, thunder was heard 3 times, first two were loud
18:42 22.1 Thunder was heard twice
18:41 22.3 Moderate rain, thunder was heard twice, last one loud
18:40 22.3 Thunder was heard twice, last one(after lightning) very loud,
light rain, lightning 1 kilometer North
18:39 22.4 Lightning 1 kilometer North. Thunder was heard 3 times, two of
them were loud. Moderate rain
18:38 22.0 Loud thunder was heard, strong rain. As total, thunder was heard
twice
18:37 22.4 Lightning 3 kilometers North. Thunder was heard twice
18:36 22.6 Strong rain, thunder was heard twice. Lightning 3 kilometers
North
18:35 23.3 Moderate rain, thunder was heard twice
18:34 23.4 Lightning 2 kilometers NorthWest
18:33 23.5 Thunder was heard twice, last one loud
18:32 23.3 Loud thunder was heard
18:31 22.7 Loud thunder was heard twice, light rain
18:30 22.3 Loud thunder was heard
18:29 22.7 Loud thunder was heard, lightning 4 kilometers NorthWest
18:28 22.9 Lightning 3 kilometers NorthWest
18:27 22.7 Loud thunder was heard twice, lightning 3 kilometers in 330
degrees
18:26 22.8 Thunder was heard twice, last one very loud
18:25 22.6 Thunder Müristas 2 Korda, esimene vali
18:24 22.8 Müristas 2 Korda, viimane vali
18:23 22.6 Müristas 2 Korda, viimane vali
18:22 22.6 Loud thunder was heard
18:21 22.9 Loud thunder was heard
18:20 23.4 Thunder was heard
18:19 23.1 Thunder was heard twice
18:18 23.4 Thunder was heard twice
18:17 23.7 Thunder was heard twice
18:16 23.3 Thunder was heard twice
18:15 23.5 Thunder was heard
18:14 23.4 Thunder was heard twice, last one loud
18:13 23.4 Thunder was heard
18:12 23.4 Thunder was heard
18:11 23.4
18:10 23.3 Loud thunder was heard
18:09 23.4
18:08 23.2
18:07 23.4 Thunder was heard, rain stopped
18:06 23.4 Thunder was heard
18:05 23.6 Moderate rain
18:04 23.7 Thunder was heard, light rain
18:03 23.8 Thunder was heard, rain stopped
18:02 23.8 Moderate rain, loud thunder was heard
18:01 23.8 Moderate rain, thunder was heard, moderate rain went to light
rain.
18.00 24.0 Light rain
17.59 24.3 Thunder was heard
17.58 24.1
17.57 24.4
17.56 24.4
17.55 24.6 Thunder was heard
17.54 Thunder was heard
17.50 26.3 Wind blowing 5-6 forces. Light rain began and ended at the same
minute
17.49 Thunder cloud heading to 10 degrees
17.45 26.7
17.42 Thunder cloud location 170 degrees, heading to 350 degrees
17.37 Thunder was heard
17.32 Thunder was heard
--
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