Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 155, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Jul 19, 1998, 7:41 PM EST for Grant County, Indiana. It was in force for 34 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
- Jul 19, 1998, 7:41 PM EST (00:41 UTC)
- Expired
- Jul 19, 1998, 8:15 PM EST
- In force
- 34 min
- Issued by
- NWS Northern Indiana
- Area
- Whole counties
County Grant County, IN
The radar
The Northern Indiana radar (KIWX), 94 km from the middle of the area, began a volume at 00:43 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 19, 3:15 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.7 hours before the alert went out and 199 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
- 2300 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1282 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFWA 200042 COR SVRFWA INC053-200115- BULLETIN- EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE NORTHERN INDIANA 741 PM EST SUN JUL 19 1998 THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GRANT COUNTY IN NORTH CENTRAL INDIANA * UNTIL 815 PM EST * AT 739 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF MARION OR IN THE VICINITY OF GAS CITY MOVING EAST AT 40 MPH. * THIS SEVERE STORM WILL AFFECT THE FOLLOWING LOCATIONS... GAS CITY MARION SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS. SEVERE THUNDERSTORMS PRODUCE DESTRUCTIVE HAIL AND DAMAGING WINDS. TEH/JAL
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 Jul 19, 1:35 PM EST, 6 hours 6 minutes earlier.
Area forecast discussion, Jul 19, 1:35 PM EST, 6 hours 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 135 PM EST SUN JUL 19 1998 FORECAST CONCERN IS CHANCE OF PRECIP.. KIWX RADAR CURRENTLY INDICATING ISOLATED THUNDERSTORMS TO THE WEST OF SBN... WHILE KLOT RADAR SHOWING MORE PRECIP NORTH OF PIA . GIVEN DEGREE OF INSTABILITY AND PRESSURE OF SURFACE BOUNDARY... EXPECT ACTIVITY TO INCREASE AS THE AFTERNOON PROGRESSES. WILL LIKELY SEE THUNDERSTORMS SCATTERED ACROSS THE AREA LATE AFTERNOON AND THIS EVENING.. WITH GREATEST COVERAGE OVER SW CORNER OF CWA WHERE SURFACE DEW POINTS AND CAPES SHOULD BE A BIT HIGHER. FAVORABLE WIND PROFILE SETTING UP AS SOUTHERLY WINDS HAVE GUSTED OVER 20 MPH IN PORTIONS OF CWA THIS PAST HOUR. MENTION OF STRONG/SEVERE STORMS RECOMMENDED. MODELS HAVING DIFFICULTY AGREEING ON FORECAST IN LATER PERIODS. ETA HINTING AT A SURFACE BOUNDARY ACROSS THE AREA AGAIN TOMORROW... WITH DEW POINTS POOLING UP IN THE MID 70S FOR SW CORNER OF CWA. MID LEVEL TEMPS QUITE WARM BY TOMORROW AFTERNOON... BUT BOUNDARY MAY STILL BE FOCUS FOR SOME DEVELOPMENT...ESPECIALLY FOR SOUTHERN AND WESTERN INDIANA COUNTIES. FEELING IS THAT STORMS SHOULD BE ISOLATED... AND MAY NOT NEED TO MENTION IN ZONES AT TIME. ETA/NGM BOTH HINTING AT MCS DEVELOPMENT TOMORROW EVENING OVER CENTRAL OR SOUTHERN MINNESOTA. MID LEVEL THICKNESS PATTERN INDICATES MOVEMENT IN OUR DIRECTION.. AND THICKNESS DIFFLUENCE LEADS TO THOUGHT THAT SYSTEM WILL BE ABLE TO SUSTAIN ITSELF ENOUGH TO WARRANT MENTION OF CHANCE POPS FOR WESTERN THIRD OF CWA LATE MONDAY NIGHT OR TUESDAY MORNING. DEBRIS CLOUDINESS MAY KEEP TEMPS DOWN INITIALLY TUESDAY MORNING ACROSS THE AREA... BUT SUNSHINE WAS ABLE TO ERODE CLOUDS TODAY AND ALLOW TEMPS TO RECOVER QUICKLY. ETA BOUNDARY TEMPS A FEW DEGREES WARMER THAN NGM TOMORROW.. WITH RESULTING HIGHS IN THE MID 90S. LOW 90S NOT TOO FAR AWAY AT 18Z.. AND WARMER AIR SHOULD NOT HAVE TOO MUCH TROUBLE MAKING IT A BIT FURTHER NORTH TOMORROW. WOULD RECOMMEND HIGHS TOMORROW A COUPLE OF DEGREES HIGHER THAN FWC/FAN. WITH DEW POINTS AOA 70 FOR MOST OF AREA AT TIME.. MINS TONIGHT SHOULD STAY A DEGREE OR TWO ABOVE GUIDANCE AS WELL. SBN BB 071/091 072/094 073 09423 FWA UU 072/092 073/094 073 09511 AOH UU 071/091 071/093 073 095-- .IWX...NONE. MARGRAF!
In the hours before
Local storm report, Jul 19, 7:23 PM EST, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
723 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0j538 PM (FWA)BAER FLD FT WAYNE IN 69 MPH TSTM GUST
07/19/98 ALLENLocal storm report, Jul 19, 7:24 PM EST, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
724 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0538 PM CENTER IN WIND DAMAGE
07/19/98 JAY TREES DOWN FIVE MILES
WEST OF CENTER NEAR
INDIANA ROUTES 26 AND 1lLocal storm report, Jul 19, 7:26 PM EST, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
726 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0r640 PM COLUMBUS GROVE OH 1 INCH HAIL
07/19/98 PUTNAMLocal storm report, Jul 19, 7:28 PM EST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
728 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0v728 PM SWAYZEE IN .75 INCH HAIL
07/19/98 GRANTLocal storm report, Jul 19, 7:32 PM EST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
732 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0650 PM 3 SW CAIRO OH TORNADO
07/19/98 ALLEN TORNADO TOUCHED DOWN ON
US ROUTE 30 BETWEEN
ELIDA AND CAIRO.
TORNADO HIT TREES AND
TRANSFORMERS. ON GROUND
FOR 6 MINUTES. 500
FEET WIDE.Local storm report, Jul 19, 7:41 PM EST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
741 PM EST SUN JUL 19 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0740 PM GAS CITY IN 1 INCH HAIL
07/19/98 GRANT HAM REPORTThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 7:26 PM EST | Severe Thunderstorm Warning | IWX | Blackford | 34 min |
| Jul 19, 7:42 PM EST | Severe Thunderstorm Warning | IWX | Jay | 48 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1998Every severe thunderstorm warning in 1998
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.