Alert archive / Indiana / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 9, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at May 30, 1991, 3:14 PM EST for DeKalb County, Noble County, Indiana. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 30, 1991, 3:14 PM EST (20:14 UTC)
- Expired
- May 30, 1991, 4:00 PM EST
- In force
- 46 min
- Issued by
- NWS Northern Indiana
- Area
- Whole counties
Counties DeKalb County, IN, Noble County, IN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 30, 3:29 PM EST | Hail 0.88 | Noble, IN |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 12:00Z, 8.2 hours before the alert went out and 187 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
- 2046 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 618 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
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.
In the hours before
Special weather statement, May 30, 2:20 PM EST, 54 minutes before
INZ001-002-302015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SOUTH BEND IN 220 PM EST THU MAY 30 1991 ...THUNDERSTORMS DEVELOPING ACROSS MICHIANA... AT 2 15 PM EST...THUNDERSTORMS HAD DEVELOPED ACROSS NORTHERN INDIANA IN A LINE ABOUT 20 MILES WIDE FROM JUST SOUTH OF CROWN POINT INDIANA ...ABOUT 60 MILES SOUTHWEST OF SOUTH BEND...TO 25 MILES NORTH OF FORT WAYNE INDIANA. THE THUNDERSTORMS WERE MOVING NORTH NORTHEAST AROUND 30 MPH. BRIEF VERY HEAVY RAIN...DANGEROUS LIGHTNING...AND STRONG GUSTY WINDS MAY ACCOMPANY THESE DEVELOPING THUNDERSTORMS. MOWERY
Special weather statement, May 30, 2:23 PM EST, 51 minutes before
INZ003-005-006-OHZ001-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FORT WAYNE IN 220 PM EST THU MAY 30 1991 AT 216 PM EST... 316 PM EDT... A STRONG THUNDERSTORM WAS LOCATED 20 MILES NORTHWEST OF FORT WAYNE... NEAR MERRIAM. THIS STORM WAS MOVING EAST AT 20 MILES AN HOUR. DANGEROUS LIGHTNING AND BRIEF HEAVY RAIN CAN BE EXPECTED WITH THIS STORM. SMALL HAIL WILL ALSO BE POSSIBLE WITH THIS STORM AS IT MOVES EAST TOWARD THE AUBURN AREA DURING THE NEXT HOUR. AT 216 PM EST... 316 PM EDT... OTHER THUNDERSTORMS EXTENDED FROM 40 MILES NORTHEAST OF FORT WAYNE TO 20 MILES NORTHEAST OF FORT WAYNE... NEAR AUBURN. THESE STORMS WERE ALSO MOVING EAST AT 20 MILES AN HOUR. BARJENBRUCH
Nearby
Severe Thunderstorm Warnings in Indiana, 1991Every severe thunderstorm warning in 1991
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.