Record heat fuels destructive fires in drought-baked Colorado

By: Dr. Jeff Masters , 1:42 PM GMT on June 12, 2013

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Destructive wildfires erupted in three locations in drought-baked Colorado on Tuesday, fanned by strong winds and the hottest temperatures ever recorded in the state so early in the year. The mercury soared to 100°F in Denver on Tuesday, their earliest 100° day on record (previous earliest 100° day: June 14, 2006, 102°.) It was the second consecutive day Denver recorded its hottest temperature for so early in the year. At Lamar in Southeast Colorado, the mercury soared to 111°, just one degree below their hottest temperature ever measured, and 3° shy of the all-time hottest temperature ever measured in Colorado, the 114° reading in Sedgwick on July 11, 1954. The most destructive fire in Colorado Tuesday was the Black Forest fire burning near Colorado Springs. The fire destroyed over 60 buildings and forced the evacuation of several thousand people. The fire was aided by nearly ideal conditions on Tuesday afternoon--Colorado Springs hit 97° (only the 2nd time the city has been that hot this early in the year), with sustained winds of 29 mph gusting to 36 mph, and a humidity of 4%. Colorado Springs is under extreme drought.


Figure 1. A garage is fully engulfed in flames as the Black Forest Fire continues to burn out of control northeast of Colorado Springs, Colo. on June 11, 2013. (Helen H. Richardson/The Denver Post/Getty Images)


Figure 2. Wild fires burn near Rocky Mountain National Park, Colorado Springs, and Royal Gorge in Colorado, and in two locations in New Mexico, at 4:40 pm EDT June 11, 2013. Record heat and strong winds hit the region on Tuesday, causing critical fire conditions. The Image credit: NASA.

The forecast: better, but still dangerous
Fire conditions will not be as dangerous in Colorado today, as winds will be lower, and temperatures will be a few degrees cooler due to a weak cold front that moved through the state overnight. Nevertheless, the air is still extremely dry and temperatures will be very hot, making it difficult for firefighters to gain the upper hand on the blazes. A red flag warning for dangerous fire conditions is posted for Colorado Springs, where winds of 10 - 20 mph, gusting to 30 mph, are expected in combination with relative humidities as low as 9% and temperatures in the low 90s. Colorado and New Mexico can expect a destructive fire season the remainder of June and into July, due to severe to exceptional drought conditions and hot temperatures. Relief will likely come in July with the arrival of wetter conditions thanks to the annual Southwest U.S. monsoon. Colorado Springs experienced the most expensive wildfire in Colorado history in 2012, the $353 million Waldo Canyon fire. The burn started on June 23rd and burned through July 10th, burning a total of 18,247 acres. Approximately 347 homes were burned, 2 people were killed, and over 32,000 residents were evacuated.


Video 1. A close escape from the Colorado Springs Black Forest fire. "I could hear the roar and the explosions of residential propane tanks heading toward Black Forest and Shoup Roads. Then came a wave of intense heat followed by a burst of fast-moving, oncoming flames. Firefighters and cops panicked, ordering me to leave: "Take pictures somewhere else," yelled one officer. I'm certain within moments of my escape the fire gobbled up a gas station and Firehouse BBQ restaurant at the corner I was standing on."

Related: Wildfires in the U.S. will be at least twice as destructive by 2050, burning around 20 million acres nationwide each year, according to a federal report released by the U.S. Department of Agriculture in 2012. The report cited research predicting that a 1.8°F increase in temperature in Colorado would cause a factor of 2.8 - 6.6 increase in fire area burned.

Wunderground member mfrazzz has a webcam pointed at the Colorado Springs Black Forest fire.


Figure 3. Severe weather outlook for Wednesday.

Severe weather outbreak Wednesday and Thursday
Tens of millions of Americans will be subject to a large outbreak of severe thunderstorms on Wednesday and Thursday, as a powerful low pressure system moves from the Great Lakes area to the East Coast. The greatest danger on Wednesday is for an organized complex of thunderstorms, possibly becoming a "derecho" event that brings widespread damaging straight-line winds to multiple states. A few strong tornadoes are also possible, and the Storm Prediction Center has issued their highest level of alert "High Risk" for Chicago and northern Indiana. This is the first "High Risk" forecast SPC has put out in 2013. Today marks the first "High Risk" forecast for Chicago since May 30, 2004, and the 16th since 1980. You can follow the outbreak on our severe weather page.


Jeff Masters

Pyrocumulus from Rocky Mountain National Park fire (JeffMasters)
The Big Meadows fire was caused by lightning in Rocky Mountain National Park. The heat from the fire made some respectable pyrocumulus clouds as I watched from Snow Mountain, above the YMCA camp where the Chapman Conference on Climate Change was occurring.
Pyrocumulus from Rocky Mountain National Park fire
JarosoFire(2) (taosmtngirl)
Thundercloud created by fire below. See Gil's (gilg7) photos also.
JarosoFire(2)
Silver Fire, Gila National Forest (Shotonsite)
Burning in the Black Range in the Gila National Forest in SW New Mexico.
Silver Fire, Gila National Forest

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But only severe TS Warned?
Member Since: Posts: Comments:
Quoting hydrus:
We still call it the Sears Tower.:)


You're thinking of a different building. Seriously, this one is not named.

Link

Gorgeous building.
Member Since: June 1, 2007 Posts: 0 Comments: 888
Accuracy is a missing verb seems
Member Since: Posts: Comments:
Quoting ncstorm:
Huge shelf cloud Mike Betts is showing on TWC now..I know he aint still chasing after the last incident..tornado siren just went off while he was talking..>
Don't know if this was posted: it's Mike Seidel in Illinois.
Member Since: Posts: Comments:
Looks like 2 Tornados on Milwaukee radar?
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Quoting aerojad:
311 S. Wacker. It's the tallest building in the country without a formal name.
We still call it the Sears Tower.:)
Member Since: September 27, 2007 Posts: 1 Comments: 22585
RT @tedgbauer Breaking: This funnel cloud was just spotted on Pigeon Lake --- incredible. sent in by resident. #yeg pic.twitter.com/8vX1ZU4MPx

Member Since: Posts: Comments:
Quoting violet312s:


What building do you work in? Used to work in the Amoco building (when it was called that).
311 S. Wacker. It's the tallest building in the country without a formal name.
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WIFR Livestream is on now Link Seems to be going over what's going on in N. IL
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http://www.earthcam.com/usa/illinois/chicago/wrig leyfield/
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Milwaukee radarLink
Member Since: Posts: Comments:
I'm calling this first, but look out for that cell near Francesville, Indiana (WSW of Indianapolis).
Member Since: Posts: Comments:
Quoting aerojad:
I just took this picture. This is what it looks like in downtown Chicago right now http://instagram.com/p/aeeW8xhzlg/


What building do you work in? Used to work in the Amoco building (when it was called that).
Member Since: June 1, 2007 Posts: 0 Comments: 888
Quoting hurricanehunter27:
Nice view. Otherwise nothing to remarkable.
Yup. It's dark, my trains are shut down. Just hanging out now.
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Quoting aerojad:
I just took this picture. This is what it looks like in downtown Chicago right now http://instagram.com/p/aeeW8xhzlg/
Nice view. Otherwise nothing to remarkable.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
I just took this picture. This is what it looks like in downtown Chicago right now http://instagram.com/p/aeeW8xhzlg/
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BREAKING: City of Chicago cancels all outdoor activities, including events at Millennium Park due to #SevereWeather -
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Quoting WxGeekVA:


Well then... Looks like it's happening here.


might see a moderate risk issued tomorrow for my area..
Member Since: August 19, 2006 Posts: 13 Comments: 16222
670
WFUS53 KDMX 122244
TORDMX
IAC013-017-023-122315-
/O.NEW.KDMX.TO.W.0021.130612T2244Z-130612T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
544 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWESTERN BLACK HAWK COUNTY IN NORTHEAST IOWA...
SOUTHWESTERN BREMER COUNTY IN NORTHEAST IOWA...
SOUTHEASTERN BUTLER COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 615 PM CDT

* AT 540 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR ALLISON...AND MOVING SOUTHEAST AT 30 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
LIKELY.

* LOCATIONS IMPACTED INCLUDE...
SHELL ROCK...WAVERLY AND NEW HARTFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.



LAT...LON 4252 9250 4254 9256 4255 9256 4255 9262
4263 9286 4280 9281 4273 9244
TIME...MOT...LOC 2243Z 289DEG 25KT 4270 9279
Member Since: Posts: Comments:
Have to go for dinner now. Take care friends! BBL.
-z
Member Since: February 2, 2011 Posts: 3 Comments: 904
653. beell
Lake breeze boundary intersecting developing MCS with an enhancement to SRH (per SPC) at least partially responsible for tornado warning over Kendall and Will Counties, IL.

Member Since: Posts: Comments:
Quoting WxGeekVA:


URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 301
NWS STORM PREDICTION CENTER NORMAN OK
630 PM EDT WED JUN 12 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF
WESTERN MARYLAND
CENTRAL AND EASTERN OHIO
SOUTHWEST PENNSYLVANIA
NORTHERN WEST VIRGINIA

* EFFECTIVE THIS WEDNESDAY NIGHT FROM 630 PM UNTIL MIDNIGHT EDT.

* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES WITH A FEW INTENSE TORNADOES POSSIBLE
SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE
SEVERAL VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST SOUTHWEST OF
MANSFIELD OHIO TO 25 MILES EAST OF MORGANTOWN WEST VIRGINIA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 298...WW 299...WW 300...

DISCUSSION...THUNDERSTORMS ARE INTENSIFYING OVER CENTRAL OH ALONG A
WEAK WARM FRONT. THESE STORMS MAY BECOME DISCRETE SUPERCELLS
CAPABLE OF LARGE HAIL..DAMAGING WINDS...AND ISOLATED TORNADOES
THROUGH THE EVENING. 21Z ILN SOUNDING VERIFIED VERY STRONG
INSTABILITY AND SHEAR PARAMETERS ARE IN PLACE...AND WILL ONLY
STRENGTHEN AS THE LOW LEVEL JET INTENSIFIES THIS EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28035.


...HART
Member Since: April 29, 2009 Posts: 75 Comments: 14887
651. zampaz
10:43 PM GMT on June 12, 2013
140
WUUS53 KLOT 122238
SVRLOT
ILC063-091-093-099-197-122345-
/O.NEW.KLOT.SV.W.0053.130612T2238Z-130612T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
538 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
GRUNDY COUNTY IN NORTHEAST ILLINOIS...
NORTHERN KANKAKEE COUNTY IN NORTHEAST ILLINOIS...
SOUTHERN KENDALL COUNTY IN NORTHEAST ILLINOIS...
CENTRAL LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS...
SOUTHERN WILL COUNTY IN NORTHEAST ILLINOIS...

* UNTIL 645 PM CDT

* AT 535 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM SHOREWOOD TO LA SALLE...AND MOVING EAST AT 35
MPH.

HAZARD...HALF DOLLAR SIZE HAIL AND 70 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT
CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO
MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
OTTAWA...MINOOKA...CHANNAHON...MARSEILLES...MORRIS ...SENECA...
WILMINGTON...PEOTONE...MANTENO...BOURBONNAIS...BRA DLEY...MOMENCE...
KANKAKEE...UTICA...NAPLATE...GRAND RIDGE...ELWOOD...MAZON...COAL
CITY AND DIAMOND.

OTHER LOCATIONS AFFECTED...
BUFFALO ROCK STATE PARK...CHANNAHON STATE PARK...GEBHARD WOODS STATE
PARK...GRUNDY COUNTY SPEEDWAY...FAIRGROUNDS...ILLINI STATE PARK...
ILLINOIS VALLEY COMMUNITY COLLEGE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.



LAT...LON 4148 8911 4149 8825 4131 8752 4110 8753
4111 8858 4131 8917 4144 8917
TIME...MOT...LOC 2238Z 282DEG 31KT 4151 8826 4136 8904

HAIL...1.25IN
WIND...70MPH
Member Since: February 2, 2011 Posts: 3 Comments: 904
650. Luisport
10:43 PM GMT on June 12, 2013
Oswego [Kendall Co, IL] trained spotter reports HAIL of golf ball size (M1.75 INCH) at 05:32 PM CDT
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649. aerojad
10:42 PM GMT on June 12, 2013
BNSF line (also known as aerojad's ticket home) has halted all trains. This is toward the southwest and western suburbs, toward what you are all watching unfold south of Darien and Bolingbrook.
Member Since: June 5, 2005 Posts: 0 Comments: 114
648. zampaz
10:42 PM GMT on June 12, 2013

013
WFUS51 KCLE 122230
TORCLE
OHC033-077-139-147-122315-
/O.NEW.KCLE.TO.W.0002.130612T2230Z-130612T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
630 PM EDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN CRAWFORD COUNTY IN NORTH CENTRAL OHIO...
SOUTHERN HURON COUNTY IN NORTH CENTRAL OHIO...
NORTHERN RICHLAND COUNTY IN NORTH CENTRAL OHIO...
SOUTHEASTERN SENECA COUNTY IN NORTHWEST OHIO...

* UNTIL 715 PM EDT

* AT 628 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR CHATFIELD...OR 13 MILES NORTH OF BUCYRUS...
AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
NEW WASHINGTON...WILLARD...PLYMOUTH...SHELBY...TIRO... SHILOH...
GREENWICH...SHENANDOAH AND OLIVESBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR CLOSET.



LAT...LON 4089 8303 4107 8301 4107 8243 4100 8243
4099 8242 4083 8242
TIME...MOT...LOC 2230Z 274DEG 27KT 4098 8288



LAPLANTE
Member Since: February 2, 2011 Posts: 3 Comments: 904
647. zampaz
10:41 PM GMT on June 12, 2013

223
WFUS53 KDMX 122234
TORDMX
IAC033-069-122315-
/O.NEW.KDMX.TO.W.0020.130612T2234Z-130612T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
534 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHERN CERRO GORDO COUNTY IN NORTH CENTRAL IOWA...
NORTHEASTERN FRANKLIN COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 615 PM CDT

* AT 532 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 6 MILES NORTHWEST OF SHEFFIELD...AND MOVING
EAST AT 25 MPH.

HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
LIKELY.

* LOCATIONS IMPACTED INCLUDE...
SHEFFIELD...ROCKWELL AND DOUGHERTY.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 175 AND 187.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.



LAT...LON 4301 9302 4279 9302 4288 9344 4306 9339
TIME...MOT...LOC 2234Z 281DEG 23KT 4295 9329

TORNADO...RADAR INDICATED
HAIL...1.25IN
Member Since: February 2, 2011 Posts: 3 Comments: 904
646. barbamz
10:41 PM GMT on June 12, 2013
Member Since: October 25, 2008 Posts: 62 Comments: 6697
645. barbamz
10:40 PM GMT on June 12, 2013
Quoting aerojad:
Metra has halted "several" commuter trains on Union Pacific North, Union Pacific Northwest and, Union Pacific West lines. Generally speaking these are lines serving the western and northwestern suburbs of Chicago.


But still very relaxed on those tv news stations ;)
Member Since: October 25, 2008 Posts: 62 Comments: 6697
644. WxGeekVA
10:40 PM GMT on June 12, 2013
Member Since: September 3, 2011 Posts: 13 Comments: 3477
643. Luisport
10:40 PM GMT on June 12, 2013
5:37 PM CT: Dangerous situation unfolding west of Chicago. Funnel clouds reported near Plainfield, IL
Member Since: October 27, 2012 Posts: 0 Comments: 2029
642. Luisport
10:40 PM GMT on June 12, 2013
Trained spotter estimates winds gusting to 70mph btwn Yorkville & Plano, IL
Member Since: October 27, 2012 Posts: 0 Comments: 2029
641. aerojad
10:38 PM GMT on June 12, 2013
Metra has halted "several" commuter trains on Union Pacific North, Union Pacific Northwest and, Union Pacific West lines. Generally speaking these are lines serving the western and northwestern suburbs of Chicago.
Member Since: June 5, 2005 Posts: 0 Comments: 114
640. WxGeekVA
10:37 PM GMT on June 12, 2013
Quoting ncstorm:
Huge shelf cloud Mike Betts is showing on TWC now..I know he aint still chasing after the last incident..tornado siren just went off while he was talking..

for tomorrow





Well then... Looks like it's happening here.
Member Since: September 3, 2011 Posts: 13 Comments: 3477
639. hydrus
10:36 PM GMT on June 12, 2013
MESOSCALE DISCUSSION 1046
NWS STORM PREDICTION CENTER NORMAN OK
0511 PM CDT WED JUN 12 2013

AREAS AFFECTED...OH...SW PA...NRN WV...WRN MD...NRN VA

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 122211Z - 122345Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...A SEVERE THREAT IS LIKELY TO DEVELOP ACROSS ERN AND CNTRL
OH EXTENDING SEWD ACROSS SW PA AND NRN WV. A THREAT FOR A FEW
TORNADOES...WIND DAMAGE AND HAIL WILL BE LIKELY AS A CLUSTER OF
STORMS ORGANIZES OVER THE NEXT FEW HOURS. WW ISSUANCE WILL LIKELY BE
NECESSARY DURING THE NEXT HOUR.

DISCUSSION...SFC ANALYSIS CURRENTLY SHOWS A FRONTAL BOUNDARY
EXTENDING ESEWD FROM LOWER MI INTO NERN OH WITH DEWPOINTS SOUTH OF
THE BOUNDARY IN THE UPPER 60S AND LOWER 70S F. THE MOIST BOUNDARY
LAYER COMBINED WITH TEMPS IN THE 80S F HAS RESULTED IN A STRONGLY
UNSTABLE AIRMASS WHERE OBJECTIVE ANALYSIS SHOWS MLCAPE VALUES OF
3000 TO 4000 J/KG. CELLS ARE CURRENTLY INITIATING ALONG THE
INSTABILITY GRADIENT IN NCNTRL OH. THE SHORT-TERM MODELS STRENGTHEN
AND MOVE THIS THUNDERSTORM ACTIVITY SEWD INTO SW PA THIS EVENING.
THE STRONG INSTABILITY COMBINED WITH 0-6 KM SHEAR VALUES IN THE 50
TO 60 KT RANGE SHOULD SUPPORT AN ORGANIZED CLUSTER OF SEVERE STORMS.
WIND DAMAGE WILL BE LIKELY AS THE STORMS GROW UPSCALE...POSSIBLY
DEVELOPING INTO A BOWING LINE SEGMENT. AN ISOLATED TORNADO THREAT
WILL ALSO DEVELOP EARLY THIS EVENING AS LOW-LEVEL FLOW STRENGTHENS.
HAIL WILL ALSO BE LIKELY WITH THE MORE INTENSE CORES.

..BROYLES/HART.. 06/12/2013
Member Since: September 27, 2007 Posts: 1 Comments: 22585
638. hurricanehunter27
10:36 PM GMT on June 12, 2013
Starting to see the cells bowing out as the head into Chicago.
Member Since: July 22, 2010 Posts: 1 Comments: 3852
637. barbamz
10:36 PM GMT on June 12, 2013
Member Since: October 25, 2008 Posts: 62 Comments: 6697
636. Luisport
10:35 PM GMT on June 12, 2013
70 mph winds, hail expected just before 6 p.m. in Chicago: A severe storm packing winds as high as.
Member Since: October 27, 2012 Posts: 0 Comments: 2029
635. hydrus
10:34 PM GMT on June 12, 2013
Romeoville, IL (KLOT) - Base Reflectivity (0.5)
Member Since: September 27, 2007 Posts: 1 Comments: 22585
634. sar2401
10:33 PM GMT on June 12, 2013
Quoting ncstorm:
US National Weather Service Wilmington NC
HOT temperatures in store for Thursday! Heat indices over 100 degrees are expected for locations inland, where along the coast heat indices will be slightly lower, in the upper 90s/near 100.

hot weather..severe storms..

Tell me about it. Still 95 here in SE Alabama with a heat index of 105, after a high heat index of 112. I just about passed out from giving my dog an outdoor shower.
Member Since: October 2, 2004 Posts: 0 Comments: 17325
633. violet312s
10:32 PM GMT on June 12, 2013
Finally, some Tom Skilling on WGN!

Link
Member Since: June 1, 2007 Posts: 0 Comments: 888
632. Luisport
10:31 PM GMT on June 12, 2013
reports of sirens going off in Aurora IL
Member Since: October 27, 2012 Posts: 0 Comments: 2029
631. sar2401
10:30 PM GMT on June 12, 2013
Quoting violet312s:
I think we've all learned something valuable this evening:

1) Chicago loves their Blackhawks
2) They are indifferent to our need to have non-stop real time weather coverage


Those rats! First it was the NWS/NHC not checking with us and now it's Chicago media not feeding our desire to see a real derecho live. Where will this end...?
Member Since: October 2, 2004 Posts: 0 Comments: 17325
630. Tropicsweatherpr
10:30 PM GMT on June 12, 2013
Quoting ncstorm:
Huge shelf cloud Mike Betts is showing on TWC now..I know he aint still chasing after the last incident..tornado siren just went off while he was talking..

for tomorrow





Oh boy,the U.S Open in Armore, Pa will get disrupted on Thursday.
Member Since: April 29, 2009 Posts: 75 Comments: 14887
627. hydrus
10:28 PM GMT on June 12, 2013
Quoting KEEPEROFTHEGATE:
That is just scary stuff Keep.
Member Since: September 27, 2007 Posts: 1 Comments: 22585
626. sar2401
10:27 PM GMT on June 12, 2013
Quoting barbamz:
Another link:

http://abclocal.go.com/wls/live

Wow, this is complicated whith all those tv stations!

"ABC7 is currently broadcasting sports content that is not cleared for the internet". Sorry, Barb, baseball (or hockey) is way more important than a couple of puny tornadoes. :-)
Member Since: October 2, 2004 Posts: 0 Comments: 17325
625. violet312s
10:27 PM GMT on June 12, 2013
I think we've all learned something valuable this evening:

1) Chicago loves their Blackhawks
2) They are indifferent to our need to have non-stop real time weather coverage

Member Since: June 1, 2007 Posts: 0 Comments: 888
624. zampaz
10:27 PM GMT on June 12, 2013

198
WFUS53 KDVN 122224
TORDVN
IAC061-ILC085-122300-
/O.NEW.KDVN.TO.W.0010.130612T2224Z-130612T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
524 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN DUBUQUE COUNTY IN NORTHEAST IOWA...
NORTHWESTERN JO DAVIESS COUNTY IN NORTHWEST ILLINOIS...

* UNTIL 600 PM CDT

* AT 519 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR SHERRILL...AND MOVING SOUTHEAST AT 20 MPH.

HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
EXTENSIVE TREE DAMAGE IS LIKELY.

* LOCATIONS IMPACTED INCLUDE...
DUBUQUE...DURANGO...SAGEVILLE...ASBURY...EAST DUBUQUE...
MENOMINEE...EDMORE...CENTER GROVE...ROCKDALE...KEY WEST AND MASSEY.

OTHER LOCATIONS AFFECTED INCLUDE MUD LAKE PARK AND MASSEY MARINA
PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.



LAT...LON 4265 9072 4263 9070 4258 9067 4254 9064
4251 9063 4251 9053 4245 9044 4238 9068
4262 9086 4265 9074
TIME...MOT...LOC 2223Z 322DEG 19KT 4259 9075

TORNADO...RADAR INDICATED
HAIL...1.00IN

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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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