Alert archive / Illinois / Flash Flood Warnings in 2003
Flash Flood Warning 6, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 9, 2003, 11:42 PM CDT for Macoupin County, Illinois. It was in force for 3 hr. 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 9, 2003, 11:42 PM CDT (04:42 UTC)
- Expired
- May 10, 2003, 2:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Macoupin County, IL
The radar
The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 04:42 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, 4.7 hours before the alert went out and 267 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1901 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 100446 FFWLSX ILC117-100715- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1142 PM CDT FRI MAY 9 2003 THE NATIONAL WEATHER SERVICE IN ST LOUIS IS EXTENDING THE * FLASH FLOOD WARNING FOR... NORTHERN MACOUPIN COUNTY IN SOUTHWEST ILLINOIS * UNTIL 215 AM CDT * AT 1130 PM CDT...LAW ENFORCEMENT REPORTED FLOODING ON AREA ROADS IN AND BETWEEN VIRDEN...MODESTO...AND GIRARD. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE AFFECTING THE TOWNS OF VIRDEN...GIRARD...MODESTO AND NILWOOD. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. $$ CARNEY
2 follow-up statements
000 WGUS73 KLSX 100618 FFSLSX ILC117-100730- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 109 AM CDT SAT MAY 10 2003 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MACOUPIN COUNTY UNTIL 215 AM CDT... ...FLOOD WATCH REMAINS IN EFFECT THROUGH NOON TODAY... AT 109 AM CDT...LAW ENFORCEMENT REPORTED FLASH FLOODING OVER NORTHERN MACOUPIN COUNTY FROM NORTHWEST OF PALMYRA TO VIRDEN AND GIRARD. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A NARROW BAND OF VERY HEAVY RAINFALL HAS OCCURRED. A SPOTTER IN VIRDEN REPORTED 2.60 INCHES OF RAIN IN A SHORT PERIOD OF TIME FRIDAY EVENING. HIGHWAY 111 IS FLOODED AT MODESTO AND HIGHWAY 4 WAS 18 INCHES DEEP BETWEEN VIRDEN AND GIRARD AND WAS CLOSED. RAINS HAVE TAPERED OFF FOR THE TIME BUT RUNOFF WILL KEEP FLOODING POSSIBLE. MORE SHOWERS AND THUNDERSTORMS WILL BE DEVELOPING TOWARD MORNING SO KEEP ABREAST OF LOCAL WEATHER DEVELOPMENTS IN YOUR AREA. A FLOOD WATCH REMAINS IN EFFECT THROUGH NOON TODAY. THIS WATCH MAY BE EXTENDED AS SHOWERS AND THUNDERSTORMS WILL BE LIKELY INTO THE AFTERNOON AND EVENING HOURS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. $$ PEDIGO
000 WGUS73 KLSX 100728 FFSLSX ILC117-100930- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 223 AM CDT SAT MAY 10 2003 ...FLASH FLOOD WARNING FOR MACOUPIN COUNTY HAS EXPIRED... ...A FLOOD WATCH REMAINS IN EFFECT UNTIL NOON TODAY... HEAVY RAINS WHICH FELL YESTERDAY EVENING HAVE SUBSIDED FOR THE TIME BEING. RAINFALL AMOUNTS OF 2 TO 3 INCHES FELL DURING A SHORT PERIOD OF TIME. THE RAINS HAVE ENDED...HOWEVER THE GROUND IS EXTREMELY SATURATED AND MORE RAINS WILL FALL LATER ON. KEEP ABREAST OF LOCAL WEATHER CONDITIONS IN YOUR AREA AND LISTEN TO YOUR LOCAL MEDIA SOURCE OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND WARNINGS. CONDITIONS ARE STILL RIPE FOR VERY HEAVY RAINFALL AS WELL AS THE POTENTIAL FOR SEVERE THUNDERSTORMS SOMETIME DURING THE NEXT 18 TO 24 HOURS. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AREA. ANY ADDITIONAL RAIN WHICH AFFECTS THE AREA WILL FALL ON SATURATED GROUND AND WOULD LIKELY PRODUCE FLASH FLOODING. $$ PEDIGO
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:42 PM CDT | Tornado Warning | LSX | Greene, Macoupin | 48 min |
| May 9, 8:12 PM CDT | Tornado Warning | LSX | Montgomery | 33 min |
| May 9, 8:14 PM CDT | Flash Flood Warning | LSX | Macoupin | 4 hr |
| May 9, 8:27 PM CDT | Tornado Warning | LSX | Macoupin | 33 min |
| May 9, 8:32 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 28 min |
| May 9, 8:43 PM CDT | Tornado Warning | LSX | Montgomery | 32 min |
| May 9, 9:02 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 43 min |
| May 9, 9:11 PM CDT | Tornado Warning | LSX | Pike | 49 min |
| May 9, 9:18 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 27 min |
| May 9, 10:12 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 33 min |
| May 10, 6:25 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 50 min |
| May 10, 6:31 AM CDT | Flash Flood Warning | LSX | Pike | 4 hr |
| May 10, 7:47 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 28 min |
| May 10, 8:06 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 24 min |
| May 10, 8:12 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 48 min |
| May 10, 8:19 AM CDT | Tornado Warning | LSX | Madison | 41 min |
| May 10, 8:31 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 29 min |
| May 10, 8:41 AM CDT | Tornado Warning | LSX | Macoupin | 34 min |
| May 10, 8:43 AM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| May 10, 9:11 AM CDT | Flash Flood Warning | LSX | Greene | 4 hr |
| May 10, 9:18 AM CDT | Tornado Warning | LSX | Bond, Madison | 27 min |
| May 10, 10:15 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 30 min |
| May 10, 11:07 AM CDT | Flash Flood Warning | LSX | Calhoun | 3 hr |
| May 10, 11:53 AM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 52 min |
| May 10, 12:30 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 45 min |
| May 10, 6:21 PM CDT | Tornado Warning | LSX | Adams | 39 min |
| May 10, 6:53 PM CDT | Tornado Warning | LSX | Adams | 52 min |
Nearby
Flash Flood Warnings in Illinois, 2003Every flash flood warning in 2003
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.