Alert archive / Indiana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 204, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Sep 11, 2000, 2:49 PM EST for LaGrange County, Indiana. It was in force for 31 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Sep 11, 2000, 2:49 PM EST (19:49 UTC)
- Expired
- Sep 11, 2000, 3:20 PM EST
- In force
- 31 min
- Issued by
- NWS Northern Indiana
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County LaGrange County, IN
The radar
The Northern Indiana radar (KIWX), 44 km from the middle of the area, began a volume at 19:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 3:10 PM EST | Thunderstorm Wind | Brighton, IN | Power lines downed. |
| Sep 11, 3:15 PM EST | Thunderstorm Wind | Lagrange, IN | Trees down. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.8 hours before the alert went out and 198 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
- 635 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 595 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KIWX 111951 SVRFWA INC087-112020- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTHERN INDIANA 249 PM EST MON SEP 11 2000 THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN LAGRANGE COUNTY IN INDIANA * UNTIL 320 PM EST * AT 249 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER LAGRANGE...MOVING NORTHEAST AT 15 MPH. * SOME LOCATIONS IN THE PATH OF THIS STORM ARE ONTARIO... BRIGHTON... SEEK SHELTER INSIDE A STURDY BUILDING AWAY FROM WINDOWS. SEVERE STORMS CAN PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN NORTHERN INDIANA. LAT...LON 4175 8539 4155 8565 4152 8520 4176 8519
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 Sep 11, 2:15 PM EST, 34 minutes earlier.
Area forecast discussion, Sep 11, 2:15 PM EST, 34 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTHERN INDIANA 215 PM EST MON SEP 11 2000 LOW PRES OVR SRN MN THIS AFTN WITH STG CDFNT TRAILING SWWD INTO SRN NEB. TSTMS WHICH DVLPD ALONG THIS SYSTEM'S WARM FRONT LAST NIGHT HAVE PERSISTED THRU THE DAY...PROPAGATING SLOWLY SE ALONG OUTFLOW BNDRY INTO UNSTABLE AND WEAKLY CAPPED AMS IN THE WARM SECTOR. MODELS IN GOOD AGREEMENT ON MOVEMENT OF CDFNT THRU 12Z TUE, THEN ETA SLOWS IT DOWN A BIT COMPARED TO OTHER MODELS. GIVEN LONGEVITY OF TSTMS TDY, AM INCLINED TO BELIEVE THEY WL PERSIST ALONG FRONT TOMORROW MORNING AND KEEP IT MOVG RIGHT ALONG, SO WENT WITH FASTER NGM/AVN. FRONT SHD MOVE TO FAR NWRN PORTION OF CWA BY 12Z TUE AND EXIT SERN PORTION MID AFTN. RRQ OF JET AHD OF UPR LVL TROF PROVIDING STRONG UPR LVL DIV FM NE IA THRU WI THIS AFTN. LINE OF TSTMS BEGINNING TO DVLP IN THIS AREA ATTM. DIV FCST TO MOVE EAST TNGT TO MI AND NRN IL AND THEN LIFT NE BY MORNING. WL CONT WITH LIKELY POPS NW AND SCT SE TNGT. GIVEN E-W ORIENTATION OF LINGERING CONVECTION OVR SRN MI/NRN IL AND HI PWAT OVR AREA, WL MENTION POTENTIAL FOR HVY RAIN. CLOUD COVER EXPECTED TO BREAK UP FROM NW-SE BEHIND FRONT TUE AND CLR OUT TUE NGT. H85 TEMP PROGS AND NWLY FLOW INDICATE CUD BE SOME LAKE EFFECT CLDS NWRN PORTION TUE NGT SO WL NOT TOTALLY CLEAR IT OUT THERE. WITH DRY AIR IN PLACE WED AND WAA COMMENCING DURING THE DAY, SHD BE MOSTLY SUNNY WITH TEMPS WARMING BACK UP TO MID 70S OVR MOST OF THE AREA. ANOTHER COLD FRONT EXPECTED TO DROP INTO THE AREA THU. MRF CONTG TO AMPLIFY UPR AIR PATTERN, DIGGING THIS SYSTEM INTO A CLOSED UPR LOW OVR THE LWR GRTLKS FRI. WITH CYCLONIC FLOW AND CAA ALOFT CONTG OVR AREA FRI WL CONT CHC OF SHOWERS INTO FRI WITH AMS DRYING OUT ON SAT. TEMP GUIDANCE SIMILAR, NO MAJOR CHGS MADE. .IWX...NONE. DJT
In the hours before
Special weather statement, Sep 11, 11:37 AM EST, 3 hours 12 minutes before
INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-111930- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTHERN INDIANA 1137 AM EST MON SEP 11 2000 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN THE AREA TONIGHT... MAINLY NORTHWEST OF A LINE FROM AROUND PERU INDIANA TO MONTPELIER OHIO. A STRONG COLD FRONT WILL APPROACH THE AREA FROM THE NORTHWEST TONIGHT. THE AIRMASS AHEAD OF THIS FRONT IS VERY MOIST AND UNSTABLE. THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF THE FRONT THIS AFTERNOON AND MOVE INTO OUR AREA OVERNIGHT. SOME OF THESE STORMS COULD CONTAIN LARGE HAIL AND DAMAGING WINDS. ALTHOUGH ISOLATED STORMS ARE POSSIBLE? BEFORE THAT TIME...THE MAIN THREAT FOR SEVERE WEATHER IS LATE TONIGHT. JT
The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 3:26 PM EST | Severe Thunderstorm Warning | IWX | Steuben | 64 min |
| Sep 11, 3:42 PM EST | Severe Thunderstorm Warning | IWX | Kosciusko, Noble | 48 min |
| Sep 11, 4:52 PM EST | Flash Flood Warning | IWX | Kosciusko | 118 min |
| Sep 11, 5:07 PM EST | Severe Thunderstorm Warning | IWX | Kosciusko, Marshall | 63 min |
| Sep 11, 5:51 PM EST | Severe Thunderstorm Warning | IWX | Huntington, Wabash, Whitley | 49 min |
| Sep 11, 6:10 PM EST | Severe Thunderstorm Warning | IWX | Allen | 50 min |
| Sep 11, 6:18 PM EST | Severe Thunderstorm Warning | IWX | Huntington, Wabash | 52 min |
| Sep 11, 6:30 PM EST | Severe Thunderstorm Warning | IWX | Adams, Wells | 60 min |
| Sep 11, 6:30 PM EST | Severe Thunderstorm Warning | IWX | Blackford, Grant | 60 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.