Alert archive / Indiana / Special Weather Statements in 2017
Special Weather Statement, NWS Northern Indiana
NWS Northern Indiana issued this special weather statement at Nov 18, 2017, 12:24 PM EST for 6 counties in Indiana. It was in force for 66 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
- Nov 18, 2017, 12:24 PM EST (17:24 UTC)
- Expired
- Nov 18, 2017, 1:30 PM EST
- In force
- 66 min
- Issued by
- NWS Northern Indiana
Counties Adams County, IN, Blackford County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Wells County, IN
The radar
The Northern Indiana radar (KIWX), 100 km from the middle of the area, began a volume at 17:27 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.4 hours before the alert went out and 177 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 689 m²/s²
- 0-3 km storm-relative helicity
- 674 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 Nov 18, 6:24 AM EST, 6 hours earlier.
Area forecast discussion, Nov 18, 6:24 AM EST, 6 hours before
Area Forecast Discussion
National Weather Service Northern Indiana
624 AM EST Sat Nov 18 2017
.SYNOPSIS...
Issued at 113 AM EST Sat Nov 18 2017
Low pressure over central Kansas early this morning will deepen
rapidly as it streaks northeast into northern Ohio by evening.
Expect widespread rain and thunder at times south of highway 30.
Early day highs will range from the upper 40s northwest to the upper
50s southeast with falling afternoon temperatures as strong
northwest winds develop.
Thereafter a seasonably cool and dry week follows through
Thanksgiving.
&&
.SHORT TERM...(Today and Tonight)
Issued at 239 AM EST Sat Nov 18 2017
00Z RAOBS indicating strong kinematics associated with upper
trough extending through the CONUS. 160kt upper jet max ejecting
out of the four corners along with 75kt mid-trop speed max over
the southern plains aiding in continued deepening of surface low
over KS/MO border...06Z obs indicating 3hr pressure tendencies of
-2 to -3mb. VAD wind profiles ahead of low indicating 60-65kt LLJ
which will aid in large scale moisture transport into the region
today as PWs of 1.00-1.25 inches expected. Regional radars
indicating precip re-development underway across central IL/IN
and will overspread the entire forecast area this morning. While low
level inversion associated with strong WAA will preclude any
surface based convection...forecast soundings do indicate some
limited elevated instability...CAPES generally 250-500J/kg...to
support embedded thunderstorms within the precip shield. Warm
cloud depths up to 10Kft decent for this time of year in support
of heavy rain within the convective elements. Surface low to
track NE through southern CWA this afternoon and move up into the
eastern great lakes tonight. Strong gradient behind the front
will have windy conditions tonight with small window of 30kt+
gusts but not expecting advisory criteria at this time. Lake
effect potential now looking even less impressive with lower
inversion heights and delta-T.
&&
.LONG TERM...(Sunday through Friday)
Issued at 239 AM EST Sat Nov 18 2017
Mainly quiet weather pattern for the long term period. High
pressure building into the TN valley will have winds backing
around to a more westerly direction and bring an end to any
remaining lake effect Sunday morning. Northern stream system
moving across southern Ontario Tuesday will bring a cold front
through the area but high pressure remains anchored in the western
Atlantic just off the Carolina coast and blocking any return flow
to support any precip chances. NW flow behind the front but LES
parameters marginal at best and would bring little more than
flurries Wednesday so will continue with dry forecast. High
pressure builds back into the area to end the period bringing a
cool but pleasant Thanksgiving.
&&
.AVIATION...(For the 12Z TAFS through 12Z Sunday Morning)
Issued at 624 AM EST Sat Nov 18 2017
Sfc low pressure had advanced into wrn MO as of 10Z and will lift
rapidly newd to just south of the FWA terminal by 18Z. Leading w-e
band of +shra and embedded thunder will hold south near term but
rapid upstream development/expansion noted ongoing through wrn/cntrl
IL in region of ramping upper jet coupling across tightening low
level baroclinic zone. Expect the leading edge of this activity will
be into the KFWA vcnty by 14Z as orginally thought.
Thus generally LIFR on the cold side of the boundary and IFR in the
warm sector. Post frontal cold advection wedge will wrap in quickly
as the low passes this afternoon with deformation band stratiform
rain ending this evening with improvement into MVFR toward 00Z for
both terminals. Otherwise sfc gusts to 30kts likely mid aftn into
early evening as intense sfc low exits newd.
&&
.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...Small Craft Advisory until 3 AM EST early this morning for
LMZ043-046.
Gale Warning from 10 AM this morning to 4 AM EST Sunday for
LMZ043-046.
&&
SYNOPSIS...T
SHORT TERM...JAL
LONG TERM...JAL
AVIATION...T
Visit us at www.weather.gov/iwx
Follow us on Facebook...Twitter...and YouTube at:
www.facebook.com/NWSNorthernIndiana
www.twitter.com/nwsiwx
www.youtube.com/NWSNorthernIndianaHazardous weather outlook, Nov 18, 4:35 AM EST, 7 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Northern Indiana 435 AM EST Sat Nov 18 2017 INZ007>009-013-015>018-020-022>027-032>034-MIZ081-OHZ001-002-004-005- 015-016-024-025-190945- Steuben-Noble-De Kalb-Pulaski-Fulton IN-Kosciusko-Whitley-Allen IN- White-Cass IN-Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford- Jay-Hillsdale-Williams-Fulton OH-Defiance-Henry-Paulding-Putnam- Van Wert-Allen OH- 435 AM EST Sat Nov 18 2017 /335 AM CST Sat Nov 18 2017/ This hazardous weather outlook is for portions of northern Indiana... northwest Ohio and southwest Michigan. .DAY ONE...Today and Tonight Widespread moderate rain is expected today. Over an inch and a half of rain is expected over the entire area. Heavy rain with brief torrential downpours can be expected with embedded thunderstorms and will produce over 2 inches of rain along the US24 corridor. This could cause minor flooding in low lying and poor drainage areas. Strong gusty winds and small hail are also possible with these thunderstorms but no severe weather is expected. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx INZ003>006-012-014-MIZ077>080-190945- La Porte-St. Joseph IN-Elkhart-Lagrange-Starke-Marshall-Berrien- Cass MI-St. Joseph MI-Branch- 435 AM EST Sat Nov 18 2017 /335 AM CST Sat Nov 18 2017/ This hazardous weather outlook is for portions of southwest Michigan and northern Indiana. .DAY ONE...Today and Tonight Widespread moderate rain is expected today. 1 to 1.5 inches of rain is possible. This could cause minor flooding in low lying and poor drainage areas. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx LMZ043-046-190945- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 435 AM EST Sat Nov 18 2017 This hazardous weather outlook is for portions of The Nearshore Waters of Southeastern Lake Michigan. .DAY ONE...Today and Tonight A period of gales is likely today and tonight with hazardous winds and waves for small boat mariners. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. && 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, Nov 18, 12:24 PM EST, 0 minutes before
Special Weather Statement
National Weather Service Northern Indiana
1224 PM EST SAT NOV 18 2017
INZ024>027-032>034-181830-
Wabash-Jay-Huntington-Blackford-Adams-Wells-Grant-
1224 PM EST SAT NOV 18 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN WABASH...
GRANT...BLACKFORD...HUNTINGTON...WELLS...ADAMS AND JAY COUNTIES...
At 1223 PM EST, radar indicated strong thunderstorms were located
along a line extending from Andrews to Windfall City. Movement was
east at 60 mph.
Wind gusts up to 50 mph and dime size hail are possible with these
storms.
Locations impacted include...
Marion, Huntington, Bluffton, Decatur, Portland, Hartford City, Gas
City, Berne, Upland, Ossian, Fairmount, Dunkirk, Montpelier,
Jonesboro, Redkey, Geneva, Sweetser, Andrews, Markle and Swayzee.
This includes Interstate 69 in Indiana between mile markers 252 and
291.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4034 8522 4038 8522 4038 8586 4047 8586
4090 8565 4088 8480 4031 8481
TIME...MOT...LOC 1723Z 274DEG 52KT 4084 8562 4036 8593
NWSThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Cass, Kosciusko, Miami, Wabash, Whitley | 69 hr |
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Allen, DeKalb | 35 hr |
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Adams, Allen | 5 days |
| Nov 18, 2:34 PM EST | Areal Flood Warning | IWX | Adams, Allen, Cass, Grant, Huntington, Miami and 3 more | 6 hr |
| Nov 18, 3:52 PM EST | River Flood Warning | IWX | Allen | 70 hr |
| Nov 18, 3:52 PM EST | River Flood Warning | IWX | Allen | 58 hr |
| Nov 18, 4:00 PM EST | River Flood Warning | IWX | Allen | 23 hr |
| Nov 18, 5:05 PM EST | Areal Flood Warning | IWX | Adams, Blackford, Grant, Jay, Wells | 3 hr |
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Allen, Paulding, Putnam | 4 days |
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Putnam | 5 days |
| Nov 18, 10:01 AM EST | River Flood Warning | IWX | Defiance, Fulton, Williams | 6 days |
| Nov 18, 3:52 PM EST | River Flood Warning | IWX | Defiance | 68 hr |
| Nov 18, 3:52 PM EST | River Flood Warning | IWX | Putnam | 39 hr |
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.