Latest Holiday Outlook…..2014 Severe Weather Events (As of July 2)July 2nd, 2014 at 12:53 am by Chad Evans under Chad's WLFI Weather Blog
LATEST OUTLOOK TO SUNDAY………….
A few showers/t’showers (25%) are possible tonight-Wednesday morning along a secondary cold front.
Cold air aloft from shortwave will pop spotty showers/t’showers (30%) across area Wednesday with partly to mostly cloudy skies, brisk northwest winds to 30 mph & highs only in the 70s.
After 55-60 Wednesday night, mostly sunny skies & highs of 76 & 80 will round out Thursday & Independence Day. Overnight lows will drop to around 50 to the mid 50s! For fireworks, 10p, 11p & 12a look to run at 68, 65 & 62, respectively.
The weekend looks good too! It will warm up, though. After 84 Saturday, highs will reach 86 Sunday. Lows will drop into the 60s. Skies looks mostly sunny each day!
FEBRUARY 20, 2014 SEVERE EVENT
A QLCS squall line raced through largely our southern half on February 20 with damaging straight-line winds & one confirmed tornado.
Additionally, rapid snow melt from much warmer weather & rainfall caused flooding & significant ice jams on rivers & streams.
An ice jam on the Eel River in Cass County caused flooding with a few home evacuations. Ice jam on Wildcat Creek has also caused back-up flooding, resulting in several home evacuations.
The Wabash had a 7-mile long ice jam in Carroll & Cass counties, backing up floodwater further in to Cass County.
Pipestone Creek on the Cass/Miami line had an ice jam with back-up flooding being reported.
Event images & NWS tornado survey (note: tornado is not on severe storm reports map, as it was confirmed after this map was made).
Tornado was a part of LEWP in the line with one signature southeast & east of Crawfordsville & another north of Crawfordsville. The one southeast & east of Crawfordsville produced the tornado.
Track is based on radar data & NWS information:
Hillsboro: Small limbs down & shingles off home
Crawfordsville: M61 mph
Tipton: E65 mph
Atlanta: M67 mph
Frankfort: Semi overturned, leaking propane. I-65 closed.
Northeast of Frankfort: 5 minutes of gusts of 50-52 mph.
Frankfort: M55 mph
Kokomo: M54 mph
Attica: M50 mph
Covington: M52 mph
Thorntown: M62 mph
Burlington: M51 mph
Logansport: M58 mph
Montgomery County: Several reports of shingles blown off homes.
MAY 21, 2014 SUPERCELLS WITH LARGE HAIL & MICROBURST
The second severe weather event of the year struck today with hail to baseball size & one significant microburst.
Overnight, supercell/multi-cells gelled into an MCS that clipper our north/northeast. Marble hail & gusty winds were reported in the morning in Cass, Miami counties.
The outflow boundary from these storms set up in the heart of the viewing area. With nice northwest flow at mid & upper levels along with a very unstable, hot, juicy environment, supercells & multi-cells popped rapidly. The high CAPE & steep lapse rates with shear from the stronger flow aloft made for lots of hail & a few minor to significant microbursts.
Storms also popped on the actual surface cold front. As another core of stronger mid- & upper-flow helped to ignite these storms.
Eventually the cold front merged with the outflow boundary in the evening & as that even stronger flow arrived we had billiard ball to baseball hail in southeast Fountain & southwest Montgomery counties this evening. Hail of up to softball size fell in eastern Illinois.
Tree limbs were reportedly downed near Kingman & Covington with 50 & 53 mph gusts. An intense microburst around Lebanon caused tree damage & even toppled many large trees (one 3′ in diameter at breast height). Power poles & line were also down. In this 1.5- to 2-mile oval, winds may have gusted 70 to perhaps 75 mph.
Images of the event:
Ryan Harber (West Lafayette): Storm over Boone County as seen from West Lafayette…………..
John Mahoney (West of Frankfort on I-65): Wall cloud on back side of supercell that produced 1.75″ hail & 50 mph gust in Clinton County……………..
Autumn McGregor (South of Pine Village): Underbelly of severe storms over Vermillion & Parke counties this evening, showing the mammatus…………………….
Beth Mantle (Attica): Underbelly of storm from Parke County showing mammatus……………………
Lyndsey Gayler (West Point): Mammatus over West Point…………….
JUNE 18, 2014 LINE OF STORMS
A line of storms with a relatively narrow swath of wind damage passed through the area in the afternoon. These overturned the airmass & gutted a lot of the surface instability for storms. These storms did struggle due to capping (CINH) issues nudging in from Plains/western Corn Belt upper ridge.
However, central Illinois missed the storms & was highly-unstable, hot & humid in the evening with surface CAPE to 4500 J/kg. This advected back in & although it was more elevated instability at first, the storms & instability became increasingly surface-based with time. That, in combination with good downdraft CAPE & lake breeze front & a slightly-bowing line of storms passed through in the evening in the “Ring of Fire” or periphery of Plains & western Corn Belt upper ridging, capping & heat.
East of Morocco: Powerlines down
East of Morocco: E70 mph
Lake Village: E60 mph
Northern Newton County: Powerlines down & on fire
North of West Lafayette: E60 mph
WLFI-TV: M55 mph
Lake Cicott: Trees down
White County: Multiple trees down countywide
Burlington: M60 mph
Kokomo: M64 mph
Delphi: Trees down on Tecumseh Bend Road
Peru: Tree down on power lines
Northeast of Thorntown: M51 mph (Report Missing In First Image)
Images of the event:
Autumn McGregor: Near Pine Village
Pam Leonard: Monticello
JUNE 30-JULY 1, 2014: TWO DERECHOS
A long-lived, long-track derecho raked areas just north of the viewing area during the late evening of Tuesday, June 30. This did prompt Severe T’Storm Warning for far northern Jasper County at 9 p.m., but wind stayed just north of the Kankakee River.
Second derecho races east & southeastward, affecting area 11 p.m. to 2 a.m. on a very sultry, juicy night. WLFI dew point hit 78. Morocco dew point hit 79!
Storms raced southeastward between though they encountered CINH (capping) with southward progression & began to weaken.
However, they did produce gusts of 45-55 mph, even with weakening. As they completely collapsed, extensive wind damage occurred in our far southeast & east & then in the Indianapolis area.
Aided by upper trough & ridge-riding shortwave, storms exploded on plume of very high surface CAPE in Illinois & Indiana, which had been capped all afternoon. Surface CAPE reached 4500-5500 J/kg, which lingered after dusk & supported the severe threat.
Less capping (CINH) & more dynamics, but bit less CAPE brought the most widespread damaging winds to our northern & northwestern counties.
Winamac Damage (from Betty & Teri):
M86 mph Lowell
E85 mph Wheatfield
E80 mph Northside of Winamac
M70 mph Morocco
Numerous Trees Down In the Northern Half of Pulaski County
Tree Limbs & Trees Down Northwest Newton County
Barns & Farms Outbuildings Damaged/Destroyed Near Demotte
Numerous Trees & Powerlines Down In Demotte
Trees Down Near Grissom Air Reserve Base
2 Power Poles Snapped at the Base Grissom Reserve Base
Trees & Power Lines Down Across Western Boone County
Several Farm Buildings Damaged/Destroyed in Western Boone County.
Power Poles Blown Onto 75 Near Advance
Large Tree Limb Blown Down Along 75 in Advance
M66 mph Grissom Air Reserve Base
M64 mph Winamac
Trees Down Near St. Joseph College
Extensive Wind Damage In Winamac: Trees & Powerlines Down with Structural Damage
M61 mph Kentland
Tree Limbs & TV Antennas Down In Kentland
E60 mph Ladoga
M59 mph Fowler
E50 mph Between Attica & West Point
M48 mph Attica
M45 mph Rensselaer
M44 mph Fulton County Airport
M43 mph White County Airport
M41 mph WLFI-TV
M40 mph Northeast of Frankfort