Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 28, NWS Northern Indiana

April 22, 1999Huntington County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 22, 1999, 5:52 PM EST for Huntington County, Indiana. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 22, 1999, 5:52 PM EST (22:52 UTC)
Expired: Apr 22, 1999, 6:40 PM EST
In force: 48 min
Issued by: NWS Northern Indiana
Area: Whole counties

County Huntington County, IN

The radar

The Northern Indiana radar (KIWX), 62 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 271 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 448 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 305 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 22, 2:16 PM EST, 3 hours 36 minutes earlier.

Area forecast discussion, Apr 22, 2:16 PM EST, 3 hours 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
216 PM EST THU APR 22 1999

FCST PROBLEM WILL BE CHANCES OF SVR WX TONIGHT.

LATEST SFC ANALYSIS SHOWS QSTNRY FRONT ACROSS SRN GRTLKS RGN.  TEMP
GRADIENT IS STRONG WITH MIDDLE 50S BEING REPORTED IN SRN LWR MI AND
LWR 70S IN NRN IN.  AREA RADARS SHOWING TSRA MOVING THRU IL ANE
NWRN IN.  LDS DISPLAY SHOWS LTNG EXTENDING INTO SWRN LWR MI.

12Z MODELS ARE SIMILAR IN MOVING H5 S/W ACROSS SRN GRTLKS RGN
TONIGHT.  STRONG SYSTEM OVER GRT BASIN WILL REMAIN NEARLY STNRY
THRU PD.  THIS WILL ALLOW RIDGE TO BUILD OVER MS VLY.  HEIGHTS WILL
RISE IN RESPONSE TO WAA INTO OH VLY.  AS STRONG HIGH PRES OVER SRN
ONT BUILDS NEXT 24-36 HRS QSTNRY FRONT ACROSS NRN IL/IN/OH WILL
START TO MOVE S.  UNTIL THEN MOIST AIR MASS WILL REMAIN OVER FA.
12Z ETA PROGS PW VALUES OF GREATER THAN 1.0 INCH TO ADVECT INTO FA
BY 12Z FRI.  SFC FRONT WILL THEN MOVE S PUSHING MOIST AIR S WITH IT.
H8 LLJ IS PROGGED TO DEVELOP BY 06Z OVER OH VLY.  THIS WILL HELP TO
PUSH MOIST AIR INTO RGN AND PROVIDE UVV TO HELP INITIATE CONVECTION.
LEFT EXIT RGN OF H2-H3 JET MAX IS PROGGED TO MOVE OVER LWR OH VLY
BY 06Z.  WITH MOIST AIR IN PLACE...AND UPPER LVL DYNAMICS DEVELOPING
...TSRA CAN BE EXPECTED NEXT 24 HRS.  CAPES AND LI/S ARE MARGINAL.
HOWEVER...WITH MOIST ATMOSPHERE...HAIL AND HEAVY RAINFALL IS POSSIBLE
WITH THE STRONGER TSTMS TONIGHT.  SOME TSTMS COULD REACH SVR
CRITERIA.  FLOODING THREAT WILL REMAIN A CONCERN WITH THE SATURATED
GROUND.

SBN TT 051/056 039/058 041 03940
FWA TT 053/060 040/060 042 03940
AOH WW 055/062 040/059 042 03840

.IWX...NONE.

OHARA

In the hours before

Local storm report, Apr 22, 3:41 PM EST, 2 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
341 PM EST THU APR 22 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0330 PM    1 S ARGOS                 IN    WIND DAMAGE
04/22/99   MARSHALL                        TREES AND POWER LINES
                                           DOWN

Local storm report, Apr 22, 3:41 PM EST, 2 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
341 PM EST THU APR 22 1999

TIME(EST)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0330 PM    1 S ARGOS                 IN    WIND DAMAGE
04/22/99   MARSHALL                        TREES AND POWER LINES
                                           DOWN

Local storm report, Apr 22, 4:30 PM EST, 1 hour 22 minutes before

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Local storm report, Apr 22, 4:30 PM EST, 1 hour 22 minutes before

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Local storm report, Apr 22, 5:33 PM EST, 19 minutes before

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Local storm report, Apr 22, 5:33 PM EST, 19 minutes before

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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 22, 3:18 PM EST	Severe Thunderstorm Warning	IWX	Kosciusko, Marshall	47 min
Apr 22, 3:56 PM EST	Severe Thunderstorm Warning	IWX	Noble, Whitley	44 min
Apr 22, 4:09 PM EST	Tornado Warning	IWX	Noble	26 min
Apr 22, 4:24 PM EST	Severe Thunderstorm Warning	IWX	DeKalb, Steuben	46 min
Apr 22, 4:46 PM EST	Severe Thunderstorm Warning	IWX	Kosciusko, Whitley	44 min
Apr 22, 5:23 PM EST	Severe Thunderstorm Warning	IWX	Allen	27 min
Apr 22, 4:55 PM EST	Severe Thunderstorm Warning	IWX	Defiance, Williams	30 min
Apr 22, 5:47 PM EST	Severe Thunderstorm Warning	IWX	Paulding	48 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999 Every severe thunderstorm warning in 1999

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.