Ogle County damage not caused by a tornado

tororwindAfter inspecting the damage today in Mount Morris, the National Weather Service determined that Wednesday’s storms did not spawn a tornado. Instead, the damage was caused by straight-line wind damage.

Eric Lenning, Science and Operating Officer of the National Weather Service office in Chicago says “It’s just more for our purposes to find out how storms evolve and understand exactly what’s happening in the atmosphere.”

Damage that is strewn in one direction tells us that uniform-directional wind pushed objects in one direction. However, if damage is strewn in a “herringbone” direction (similar to a herringbone necklace) in different directions, a tornado caused the damage.

In Mt. Morris and Oregon, it was all straight-line wind damage.

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Posted under severe weather, tornado

This post was written by qni_it on May 15, 2009

Chilliest weekend in over a month!

coolweekendWith high temperatures expected to barely reach into the lower 60s, I decided to look back at our climate records at past weekends. Much to my surprise, we’ve batted a thousand when it’s come to rainfall! With a surplus in the rain gauge, you would have expected at least some rain on the weekend, right? Not one May weekend has seen rain. Better than that, look at the temperature trends for our weekends. Back on April 25th and 26th we were in the 70s. Unfortunately, every weekend since has been cooler.

Grab the light jacket and don’t be afraid to turn on the furnace at night! This will be the coolest weekend since April 11th and 12th!

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Posted under weather

This post was written by qni_it on May 15, 2009

Severe risk to stay south of Rockford

severeRockford has been on the northerly fringes of the rainfall all day long and will likely stay that way until this evening. Powerful thunderstorms will affect areas south of I-80 in Central Illinois and Northern Missouri until an upper level disturbance moves out of the Dakotas this evening. That will push a cold front through the area late this evening. A few storms are likely along this front, but with a lack of surface-based instability, storms will most likely stay below severe limits.

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Posted under severe weather

This post was written by qni_it on May 15, 2009

Act II of our Storm Saga

There is increasing confidence that another round of severe weather will be seen across the Midwest Friday. Whether it gets in here is another story.

Crazy enough, Friday’s system could be a twin brother to Wednesday’s. Maybe not identical, but fraternal twins. We’ll start the day with overrunning rains and rumbles (nothing severe). However a warm front is expected to lift into the area by mid-afternoon. If any breaks in the overcast form, the sun will increase our surface instability and increase the threat for severe once the cold front moves in for late-evening.

However this system is the runt of the litter so to speak. There isn’t nearly as much wind shear present here and the timing is a little late (bringing the cold front to RFD around midnight). Nonetheless, we’ll be here to watch the radar. If you see any blue overhead Friday, that will be your clue that some severe is possible later in the day. -ES

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Posted under severe weather

This post was written by qni_it on May 14, 2009

breaking_news

A team of Meteorologists from the National Weather Service will survey damage in Mt. Morris early Friday to determine if it was caused by a tornado.

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Posted under severe weather, tornado

This post was written by qni_it on May 14, 2009

winter_alert5

Storm reports from Wednesday night:

(10:03:26 PM) nwsbot: LOT: Amboy [Lee Co, IL] emergency mngr reports TSTM WND DMG at 08:50 PM CDT — trees down.

(10:02:34 PM) nwsbot: LOT: Mount Morris [Ogle Co, IL] trained spotter reports TSTM WND DMG at 09:30 PM CDT — report of roofs off buildings.

(10:11:04 PM) nwsbot: LOT: Oregon [Ogle Co, IL] trained spotter reports TSTM WND DMG at 09:55 PM CDT — large limb blocking both lanes of 500th block of north 4th street. relayed via broadcast media.

(9:52:46 PM) nwsbot: LOT: Rockford [Winnebago Co, IL] trained spotter reports FLOOD at 08:50 PM CDT — heavy rain with street flooding being reported at 11th street and rt 25.

(9:50:46 PM) nwsbot: LOT: Mount Morris [Ogle Co, IL] trained spotter reports HAIL of penny size (E0.75 INCH) at 09:45 PM CDT —

(9:44:50 PM) nwsbot: LOT: 6 E South Beloit [Boone Co, IL] broadcast media reports TSTM WND DMG at 08:55 PM CDT — tree down and blocking road near free church and manchester rd. time estimated.


10pm – Thank you for participating in our live severe weather chat. We’ll be back next time there is a severe weather event anticipated.

5:45pm update –  Storm Prediction Center is currently planning on issuing a TORNADO WATCH for at least a portion of our area soon. From SPC: ”

SEVERE/TORNADO THREAT CONTINUES ACROSS WW 293...AND IS SLOWLY
SPREADING EWD INTO NRN IL/FAR SRN WI.  NEW TORNADO WATCH WILL LIKELY
BE ISSUED SHORTLY.

A COLD FRONT CONTINUES MAKING EWD/SEWD PROGRESS ACROSS IA/NRN
MO...WITH STORMS DEVELOPING NEAR/AHEAD OF THE FRONT.  MODERATE
INSTABILITY PERSISTS ACROSS THE WW...WITH DESTABILIZATION NOW
OCCURRING E OF THE WATCH INTO NRN IL.  WITH 0-1 KM SHEAR SUPPORTIVE
OF LOW-LEVEL ROTATION BENEATH FAVORABLE DEEP-LAYER WIND FIELD...IT
APPEARS THAT THE SEVERE/TORNADO THREAT WILL CONTINUE SPREADING INTO
IL/FAR SRN WI WITH TIME."

(4:39:28 PM) nwsbot: MKX: 1 E Elkhorn [Walworth Co, WI] county official reports HAIL of pea size (M0.25 INCH) at 04:00 PM CDT — pea size hail

4pm update –  Thunderstorms are developing ahead of the cold front in central Iowa.  It hasn’t been as vigorous as anticipated… nowcasting models indicate there should be a wealth of energy available.  Nonetheless, they are slowly increasing in coverage and intensity.  The warm front is also continuing to pull northward and is still expected to briefly put us into the warm sector this evening.  The intersection of the warm front and cold front is also still anticipated to pass nearby… and that particular location will need to be monitored closely in case intense storms develop near it, as it would provide locally high shear increasing the chance of brief tornadoes.

If the storms develop into an organized line and we get into the warm sector, strong winds will be the primary threat.  Large hail and an isolated tornado would also be possible.  If the warm front does not pass Rockford… then storms would mainly be hail-producers. -JG

Original post:  New Tornado Watch issued, as expected for areas along and just south of the warm front. Does NOT cover any counties in our coverage area. However storms could propagate into the region after 5pm. -ES

(2:34:25 PM) Ilx_soo: A Tornado Watch will be issued shortly for portions of west central Illinois.

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Posted under flooding, severe weather, tornado

This post was written by qni_it on May 13, 2009

Possible severe outbreak Wednesday

vort10pm update – Evening NAM computer model just came in and shows an ominous picture for Northern Illinois and Southern Wisconsin. I would almost put money on the table that the moderate risk will be drawn northward into our region with the SPC update shortly after midnight. You can check out the latest convective outlooks by clicking here.

Evening Update – I’ve been analyzing more radar data concerning Wednesday’s possible severe weather outbreak. As I mentioned earlier today (below), things seem to be coming in line.

model

The image to the left is a time progression from afternoon to evening showing the blossoming of thunderstorms in the afternoon, forming a 750 mile long squall line from Michigan to Arkansas.

Original post – Our atmosphere will take a complete 180° turn between tonight and Tuesday night. Dewpoints tonight will be in the upper 30s and lower 40s and by Wednesday afternoon could be near 70°! That’s an amazing transformation!

A few things of note: This system is still in its infancy. Every additional model run that comes in will be analyzed as little changes may have big impacts on the timing and strength of thunderstorms.

Low pressure will develop in the lee of the Rockies Tuesday night and pull a warm front northward through Missouri and Illinois. Some nighttime storms will affect areas along I-80 during the nighttime hours and push east-southeast toward Champaign by Wednesday morning.

In the wake of these storms, some clearing is expected which will destabilize the atmosphere just in time for the arrival of a cold front.

day3otlk_0730The Storm Prediction Center, this morning put out a Moderate Risk of severe thunderstorms for Wednesday which is way in advance of what they usually do. As this storm materializes Tuesday and Tuesday night, I do expect the SPC to expand the moderate risk and possibly include a “high risk” somewhere along the I-55 corridor from Joliet down to St. Louis.

I do believe this isn’t the end-all, be-all severe weather set up for us and there are many variables that have to be met before this happens.

What is great here is we have another day to watch the models. We’ll bring you more insights as we get them! -ES

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Posted under severe weather, tornado

This post was written by qni_it on May 11, 2009

Mom & Dad on Bench Cam!

First of all, let me give a big THANK YOU to my parents for coming out to Bench Cam tonight at six. On 13News@5 I invited viewers to come to the bench on East State Street (in front of the Water Street Cafe, across the street from the News Tower) and low and behold some familiar faces showed up. 🙂 Since it made my week, I thought I would share it with you! Have a good weekend!

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Posted under humor

This post was written by qni_it on May 8, 2009

Welcome to Allergy Season!

allergy_reportIt’s that time of year again! From now until the first frost this autumn, 13News is your Allergy Authority 🙂

When we get the data each weekday morning, this graphic will automatically update on wrex.com. We’ll also show it to you on 13News at Noon and 13News at Five.

My question for you: Have you been sniffling and sneezing yet? What remedies do you have for allergies? Please share! -ES

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Posted under Uncategorized

This post was written by qni_it on May 7, 2009

Tornado chases TV crew!

A storm chase team from Kansas City finds themselves trapped between a jersey barrier, a ditch, and a destructive tornado. Courtesy of Photojournalist John Woods and KMBC-TV.

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Posted under severe weather, tornado

This post was written by qni_it on May 6, 2009