Alert archive / Illinois / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 44, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at May 17, 2001, 3:29 AM CDT for McDonough County, Illinois. It was in force for 46 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
- May 17, 2001, 3:29 AM CDT (08:29 UTC)
- Expired
- May 17, 2001, 4:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County McDonough County, IL
The radar
The Lincoln radar (KILX), 119 km from the middle of the area, began a volume at 08:29 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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 8.5 hours before the alert went out and 130 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
- 4 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 2472 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 126 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 Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 2:33 AM CDT, 56 minutes earlier.
Area forecast discussion, May 17, 2:33 AM CDT, 56 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 233 AM CDT THU MAY 17 2001 SYNOPTIC PICTURE THIS MORNING SHOWS MODERATELY ZONAL FLOW ACROSS NORTHERN HALF OF U.S...EXCEPT FOR STRONG SHORT WAVE MOVING THROUGH EASTERN DAKOTAS. AT THE SURFACE...A STATIONARY FRONT EXTENDS ALONG IA/MO LINE INTO WEST CENTRAL IL. STRONG TSTMS...WITH WINDS GUSTING TO 40 MPH AND SMALL HAIL...ARE BEGINNING TO TRAIN JUST NORTH OF THIS FRONT ACROSS SOUTHEAST IA. FUNNEL CLOUDS HAVE BEEN REPORTED ALONG LARGE OUTFLOW BOUNDARY NOW MOVING INTO WEST CENTRAL ILLINOIS. THIS IS AREA THAT WAS POUNDED A FEW DAYS AGO BY HEAVY RAINS. MODELS INITIALIZED WELL AT 500H AND THE SURFACE AT 00Z. PRIMARY FORECAST CONCERNS THIS PACKAGE ARE IN SHORT TERM...TODAY AND POSSIBLY THIS EVENING...WITH FRONT. SHORT-RANGE MODELS ARE IN DISAGREEMENT ON HOW TO HANDLE FRONT TODAY. AVN PUSHES IT SOUTH DURING DAY...AND BY 00Z INTO CENTRAL MISSOURI TO SOUTH CENTRAL ILLINOIS...WHERE FRONT BECOMES STATIONARY AROUND 06Z FOR A LITTLE WHILE AS LOW MOVES EAST ALONG FRONT FROM MISSOURI INTO ILLINOIS. ETA AND NGM KEEP FRONT FURTHER NORTH THROUGH 18Z...ACROSS CENTRAL AND SOUTH PORTIONS OF FA RESPECTIVELY... THEN COME CLOSER TO AVN BY 00Z AND 06Z. ALL MODELS SHOVE FRONT WELL SOUTHEAST BY 12Z FRI. LOCALLY HEAVY RAINS THIS MORNING MAY PROMPT ISSUANCE OF FLASH FLOOD WATCH THIS MORNING CENTRAL AND SOUTH. LOOKING FURTHER AHEAD...HIGH SETTLE OVER FORECAST AREA FRIDAY AND SATURDAY. THINGS BECOME INTERESTING AGAIN SATURDAY NIGHT OR SUNDAY... WITH MEDIUM RANGE MODELS INDICATED SURFACE LOW MOVING THROUGH AREA...OR JUST SOUTH...SUNDAY...WITH 500H SHORT WAVES SUNDAY AND MONDAY. DETAILS VARY SIGNIFICANTLY BETWEEN MRF/EUROPEAN/UK. WILL EMPHASIZE RAIN TODAY...ESPECIALLY CENTRAL AND SOUTH...AND ADD POPS THIS EVENING. WILL KEEP WITH CURRENT ZONES IN FAVORING COOLER MAV. .DVN... IA...NONE. IL...NONE. MO...NONE. REA
In the hours before
Local storm report, May 17, 3:25 AM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
325 AM CDT THU MAY 17 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0205 AM 1 W WAPELLO IA WIND DAMAGE
05/17/01 LOUISA LARGE TREE BLOWN DOWN
ACROSS A COUNTY ROAD.
REPORTED BY LAW
ENFORCEMENT OFFICIAL.Local storm report, May 17, 3:27 AM CDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
327 AM CDT THU MAY 17 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0242 AM DAVENPORT ARPT IA 59 MPH TSTM GUST
05/17/01 SCOTT RECORDED BY NWS
AUTOMATED EQUIPMENT.
@ RUKWBCeKDENWWUS30 KMLI 170828
LSRMLI
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
328 AM CDT THU MAY 17 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0253 AM MONMOUTH IL .5 INCH HAIL
05/17/01 WARREN REPORTED BY EMERGENCY
MANAGEMENT.Local storm report, May 17, 3:28 AM CDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
328 AM CDT THU MAY 17 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0253 AM MONMOUTH IL .5 INCH HAIL
05/17/01 WARREN REPORTED BY EMERGENCY
MANAGEMENT.The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 2:44 AM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 46 min |
| May 17, 2:53 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, Warren | 52 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 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; radar from the NEXRAD Level II archive.