Alert archive / Ohio / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 204, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jul 21, 2001, 5:35 PM EDT for Auglaize County, Ohio. It was in force for 40 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
- Jul 21, 2001, 5:35 PM EDT (21:35 UTC)
- Expired
- Jul 21, 2001, 6:15 PM EDT
- In force
- 40 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Auglaize County, OH
The radar
The Cincinnati radar (KILN), 131 km from the middle of the area, began a volume at 21:36 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 |
|---|---|---|---|
| Jul 21, 5:50 PM EDT | Thunderstorm Wind 50 E | St Marys, OH | Thunderstorms produced strong winds which knocked down a tree and large limbs. |
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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.6 hours before the alert went out and 131 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
- 743 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 2:55 PM EDT, 2 hours 40 minutes earlier.
Area forecast discussion, Jul 21, 2:55 PM EDT, 2 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 255 PM EDT SAT JUL 21 2001 REGIONAL RADAR IMAGERY INDICATES CONVECTION HAS INCREASED IN COVERAGE OVER NORTHERN INDIANA AND FAR SOUTHWESTERN MI. SATELLITE IMAGERY SHOWING CU OVER FA AND MESOSCALE CONVECTIVE VORT OVER SOUTHEASTERN IL. MODELS ARE ALL IN GOOD AGREEMENT WITH SYNOPTIC FEATURES BUT VARY WITH INTENSITY AND TIMING OF MID LEVEL WAVES. RIDGE TO OUR WEST WILL SLOWLY BREAK DOWN IN THE NEXT 24 TO 48 HOURS. AS IT BREAKS DOWN IT FLATTENS OUT BRINGING HIGHER HEIGHTS. THE UPPER JET STREAM...HOWEVER DOES REMAIN NORTH. WILL LEAVE IN MENTION OF EVENING THUNDERSTORMS IN THE WEST AS BEST INSTABILITY...WEAK LOW LEVEL CONVERGENCE AND OUTFLOW BOUNDARIES WILL CREATE SCATTERED THUNDERSTORM ACTIVITY. THINK CONVECTION OVER NORTHERN IN WILL REMAIN NORTH BUT IT DOES BEAR WATCHING. WILL KEEP THE THREAT OVERNIGHT ACROSS THE SOUTH AS MOISTURE AXIS AND WEAK WAVE REMAINS. WILL THROUGH IN MENTION AGAIN SUNDAY AFTERNOON FOR SIMILAR REASONS. FEEL MONDAY WILL BE MAINLY DRY AS UPPER RIDGE BUILDS IN. HOWEVER WILL INCLUDE 30 POP TO NORTHWEST...WHICH WILL BE CLOSER TO THE FRONT. TEMPS WILL GRADUALLY CLIMB A DEGREE OR TWO THE NEXT SEVERAL DAYS AS WE HEAD INTO OUR LONGEST HOT SPELL OF THE SUMMER. LOWS WILL HAVE A TOUGH TIME FALLING BELOW 70 UNTIL LATTER IN THE WEEK. FWC TEMPS LOOK GOOD WILL ONLY MAKE MINOR TWEAKS. .ILN...NONE. TIPTON
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 5:13 PM EDT | Severe Thunderstorm Warning | ILN | Mercer | 62 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 2001Every severe thunderstorm warning in 2001
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.