Alert archive / Indiana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 130, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Aug 18, 2001, 10:14 PM EST for Dubois County, Indiana. It was in force for 31 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
- Aug 18, 2001, 10:14 PM EST (03:14 UTC)
- Expired
- Aug 18, 2001, 10:45 PM EST
- In force
- 31 min
- Issued by
- NWS Louisville, KY
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Dubois County, IN
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.2 hours before the alert went out and 248 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
- 118 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 12:50 PM EST, 9 hours 24 minutes earlier.
Area forecast discussion, Aug 18, 12:50 PM EST, 9 hours 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 150 PM EDT SAT AUG 18 2001 FORECAST PROBLEMS CENTER ON THUNDERSTORMS AND SEVERITY TONIGHT. EXPECT SCT TSTMS TO DEVELOP BY LATE AFTN IN INCRSGLY UNSTBLE AMS(ESPCLY WRN FA) AS CAPES NEAR 3000 J/KG AHD OF VORT LOBE STILL UPSTRM. MAJOR THREAT OF SVR STORMS COMES IN LATER TNGT(PROBABLY IN THE FORM OF A LINEAR MCS) AS PRONOUNCED CLOSED LOW/SHRTWV TROF CONTS TO DIG INTO THE UPR OH VLY BEFORE TURNING E/NEWD SUN MRNG. ETA PROGS IN EXCESS OF 12 MICROBARS/SEC UVV INTO SCNTRL IN AND NCNTRL KY FROM LATE EVE INTO THE WEE HOURS OF THE MRNG ASSOCIATED WITH CYCLONIC LEFT EXIT REGION/RIGHT ENTRANCE REGION COUPLED JET STRUCTURE OVER NWRN FA AT 06Z. THIS JUST DOWNSTRM FROM CURRENT SPC MODERATE RISK AREA. WILL HIT NWRN FA WITH STRONG WORDING TNGT (HAIL/HIGH WINDS)IN ANTICIPATION OF LIKELY INCOMING WATCH. ETA SOUNDING AT 06Z SHOWING A BRN OF 41 OVER NWRN FA...INDICATIVE OF SUPERCELLS...HOWEVER SVR THREAT SHUD BE WANING THEN AS BNDRY LAYER STABILIZES AND UPR SYS TURNS EWD. ON SUNDAY...WITH UPPER LOW ACRS LWR GREAT LAKES AND COLDER AIR ALOFT ACROSS THE REGION...LAPSE RATES WILL BE FAVORABLE FOR CONTINUED SCATTERED CONVECTION...ESPCLY EASTERN FA. WILL KEEP MENTION OF CHC POPS ALL AREAS...MAINLY MRNG ACRS WRN FA. INFLUX OF DRIER AIR SUN NGT INTO THE NEW WORK WEEK PROGGED BY MODELS AS UPR RDG SLOWLY BUILDS IN. WILL CONT DRY EXTENDED...EXCEPT INTRO A RW/TRW CHC SAT. .SDF...NONE KIRKPATRICK
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:56 PM EST | Severe Thunderstorm Warning | LMK | Orange, Washington | 34 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 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; the sounding from the Mesonet's radiosonde archive.