Alert archive / Indiana / Special Weather Statements in 2017
Special Weather Statement, NWS Northern Indiana
NWS Northern Indiana issued this special weather statement at Aug 3, 2017, 2:07 PM EDT for Whitley County, Indiana. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 3, 2017, 2:07 PM EDT (18:07 UTC)
- Expired
- Aug 3, 2017, 2:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Northern Indiana
County Whitley County, IN
The radar
The Northern Indiana radar (KIWX), 13 km from the middle of the area, began a volume at 18:07 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.1 hours before the alert went out and 247 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 588 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 944 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Northern Indiana wrote its last area forecast discussion before this special weather statement went out at Aug 3, 1:40 PM EDT, 27 minutes earlier.
Area forecast discussion, Aug 3, 1:40 PM EDT, 27 minutes before
Area Forecast Discussion
National Weather Service Northern Indiana
140 PM EDT Thu Aug 3 2017
.SYNOPSIS...
Issued at 330 AM EDT Thu Aug 3 2017
Isolated to scattered thunderstorms are possible late this afternoon
mainly west of US 31. Otherwise a sharp cold front will drive east
across the area late tonight into early Friday morning with
scattered thunderstorms expected. Much cooler weather will arrive
Friday and persist into Saturday before temperatures moderate warmer
through next week.
&&
.SHORT TERM...(Today and tonight)
Issued at 330 AM EDT Thu Aug 3 2017
Eliminated most near term pops on account of substantial theta-e
minimum seen in 00Z raob at KILX which will advance newd across the
cwa through early aftn. Much better low level theta-e ridging will
then push into wrn areas ewd of cyclone wrapping up across the upper
midwest and in concert with upticking low level jet after 21Z. Some
evidence of a prefrontal trough feature at that time coming out of
ne IL as indicated in most CAMS guidance and will confine higher
chance pops far west late this aftn.
Otherwise ewd progression of cold frontal zone commences tonight
albeit slower versus prior model based guidance and expect much of
this will wash out/decay with ewd extent across the cwa especially
late. Will modify according to preferred blend and in light of 00Z
based mos trends.
&&
.LONG TERM...(Friday through Wednesday)
Issued at 330 AM EDT Thu Aug 3 2017
Strong post frontal cold advection will overspread the area Fri
morning. Steepening sfc based lapse rates within residual low level
moisture plume should bubble by late morning into mid aftn with
isolated to scattered showers pending arrival/extent of entraining
dry air.
Following sfc ridging will then expand through the OH valley Sat
before breaking down in advance of next nrn plains sw disturbance
late Sun which is forecast to shear out overhead late Mon. Return
flow ahead of this system warrants holding onto low chc pops Sun
aftn into Mon. Renewed sfc ridging and dry weather expected to
prevail then through the rest of the period.
&&
.AVIATION...(For the 18Z TAFS through 18Z Friday Afternoon)
Issued at 132 PM EDT Thu Aug 3 2017
Isolated thunderstorms have developed in the warm sector as we
have reached convective temperature. Limited BL shear at this time
with increasing SWLY flow further west will sustain isolated
convection through the early portion of the TAF.
Instability and shear after 00Z will usher in more organized and
widespread convection...especially KSBN area. Expect to see MVFR
and isold IFR conditions across the western half of the forecast
area through the overnight. Upper level support shifts quickly
eastward overnight and the threat of convection and flight
restrictions will diminish quickly.
With the frontal/trof passage expect to see significant boundary
layer turbulence and shear. While not forecasting LLWS, this will
need to be monitored closely during the 06-12Z period.
&&
.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Beach Hazards Statement from Friday morning through Saturday
morning for INZ003.
MI...Beach Hazards Statement from Friday morning through Saturday
morning for MIZ077.
OH...NONE.
LM...Small Craft Advisory from 8 AM Friday to 11 AM EDT Saturday for
LMZ043-046.
&&
SYNOPSIS...T
SHORT TERM...T
LONG TERM...T
AVIATION...Lewis
Visit us at www.weather.gov/iwx
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www.twitter.com/nwsiwx
www.youtube.com/NWSNorthernIndianaHazardous weather outlook, Aug 3, 5:37 AM EDT, 8 hours 30 minutes before
Hazardous Weather Outlook National Weather Service Northern Indiana 537 AM EDT Thu Aug 3 2017 INZ004>009-012>018-020-022>027-032>034-MIZ078>081-OHZ001-002-004-005- 015-016-024-025-041000- St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski- Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-Miami- Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Cass MI- St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-Henry- Paulding-Putnam-Van Wert-Allen OH- 537 AM EDT Thu Aug 3 2017 /437 AM CDT Thu Aug 3 2017/ This hazardous weather outlook is for portions of southwest Michigan...northern Indiana and northwest Ohio. .DAY ONE...Today and Tonight An isolated thunderstorm is possible late this afternoon mainly west of US 31. Scattered thunderstorms are more likely this evening west of I 69 and after midnight east of I 69. An isolated strong storm with small hail and gusty winds is possible across northern Indiana this evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a low chance for thunderstorms late Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx INZ003-MIZ077-041000- La Porte-Berrien- 537 AM EDT Thu Aug 3 2017 /437 AM CDT Thu Aug 3 2017/ This hazardous weather outlook is for portions of southwest Michigan and northern Indiana. .DAY ONE...Today and Tonight Scattered thunderstorms are expected from late this afternoon through this evening. An isolated strong storm with small hail and gusty winds is possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Dangerous swimming conditions are expected Friday through Saturday morning along the Lake Michigan shoreline. There is a low chance for thunderstorms late Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx LMZ043-046-041000- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 537 AM EDT Thu Aug 3 2017 This hazardous weather outlook is for portions of The Nearshore Waters of Southeastern Lake Michigan. .DAY ONE...Today and Tonight Scattered thunderstorms are expected from late this afternoon through this evening. An isolated strong storm with small hail and gusty winds is possible this evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Hazardous conditions for small craft are expected from Friday morning through Saturday morning. There is a low chance for thunderstorms late Sunday. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx
In the hours before
Special weather statement, Aug 3, 2:07 PM EDT, 0 minutes before
Special Weather Statement National Weather Service Northern Indiana 207 PM EDT THU AUG 3 2017 INZ008-016-017-031845- Noble-Whitley-Kosciusko- 207 PM EDT THU AUG 3 2017 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN NOBLE... NORTHWESTERN WHITLEY AND EASTERN KOSCIUSKO COUNTIES... At 206 PM EDT, a strong thunderstorm was located over Pierceton, or near Winona Lake, moving northeast at 25 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Warsaw, Winona Lake, Tri-lakes, North Webster, Pierceton, Etna, Cromwell, Larwill, Big Barbee Lake, Ridinger Lake, Merriam, Lorane, Big Lake, Irish Lake, Bear Lake, Green Center, Wilmot, James Lake, Goose Lake and Knapp Lake. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 4118 8582 4143 8567 4131 8530 4110 8572 TIME...MOT...LOC 1806Z 226DEG 21KT 4120 8572 SLL
The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 4:13 AM EDT | Small Craft Advisory | IWX | 58 hr | |
| Aug 3, 4:14 AM EDT | Beach Hazards Statement | IWX | 55 hr | |
| Aug 3, 4:40 PM EDT | Special Weather Statement | IWX | Kosciusko | 50 min |
| Aug 3, 5:10 PM EDT | Special Weather Statement | IWX | LaGrange, Noble | 50 min |
| Aug 3, 5:30 PM EDT | Special Weather Statement | IWX | White | 45 min |
| Aug 3, 5:39 PM EDT | Special Weather Statement | IWX | Miami | 36 min |
| Aug 3, 6:16 PM EDT | Special Weather Statement | IWX | Cass, Miami | 44 min |
| Aug 3, 6:40 PM EDT | Special Weather Statement | IWX | Huntington, Miami, Wabash | 50 min |
| Aug 3, 7:45 PM EDT | Special Weather Statement | IWX | Adams, Blackford, Jay | 30 min |
| Aug 3, 4:48 PM EDT | Special Weather Statement | IWX | Henry, Putnam | 42 min |
| Aug 3, 5:56 PM EDT | Special Weather Statement | IWX | Putnam | 34 min |
| Aug 3, 2:15 PM EDT | Special Weather Statement | IWX | Cass | 45 min |
Nearby
Special Weather Statements in Indiana, 2017Every special weather statement in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.