Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 50, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 23, 1993, 5:40 PM CDT for Randolph County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1993, 5:40 PM CDT (22:40 UTC)
- Expired
- Jul 23, 1993, 8:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Randolph County, IL
The radar
The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 22:42 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
Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.7 hours before the alert went out and 147 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
- 128 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 916 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 232242 FFWSTL ILC133-157-MOC099-186-240145- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 540 PM CDT FRI JUL 23 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...MONROE COUNTY...RANDOLPH COUNTY IN EAST CENTRAL MISSOURI ...JEFFERSON COUNTY...STE GENEVIEVE COUNTY AT 538 PM...RADAR INDICATED A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN BETWEEN ST LOUIS AND CAPE GIRARDEAU. THE HEAVIEST RAIN EXTENDED FROM 40 MILES SOUTHEAST TO 35 MILES SOUTHWEST OF ST LOUIS. THESE STORMS WERE MOVING EAST AT 20 MILES AN HOUR. RAINFALL OF 1 TO 2 INCHES IS LIKELY WITH SOME OF THESE STORMS LEADING TO FLASH FLOODING. THIS AREA IS ALREADY SATURATED SO RUNOFF WILL OCCUR QUICKLY. BE ESPECIALLY CAUTIOUS NEAR RIVER FLOOD PROBLEMS AND ON LEVEES. SMALLER CREEKS AND STREAMS WILL OVERFLOW QUICKLY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATdENING RAINS. SHEA/TRUETT
What forecasters said that day
The local office's own words before this flash flood 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, Jul 23, 3:55 PM CDT, 1 hour 45 minutes before
MOZ007-011-012-017-ILZ011-232200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 355 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI AND PARTS OF SOUTHWEST ILLINOIS UNTIL 800 PM... AT 350 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN FROM 35 MILES NORTH OF ST LOUIS...NEAR HARDIN ILLINOIS... TO 50 MILES WEST OF ST LOUIS...NEAR WARRENTON. THESE STORMS ARE MOVING EAST AT 20 MILES AN HOUR. RAINFALL FROM THESE STORMS HAS BEEN AS HIGH AS 1 TO 2 INCHES AN HOUR ALONG WITH GUSTY WIND AND FREQUENT LIGHTNING. IF YOU LIVE IN EAST CENTRAL MISSOURI OR SOUTHWEST ILLINOIS YOU CAN EXPECT ROUNDS OF TORRENTIAL RAIN FOR THE REMAINDER OF THE AFTERNOON. BE ALERT FOR FLASH FLOODING AND SEVERE WEATHER...LIKE LARGE HAIL AND DAMAGING WIND. WHEN A WARNING IS ISSUED...MOVE TO A PLACE OF SHELTER. PEOPLE WORKING ON LEVEES OR AREA FLOOD PROBLEMS SHOULD WATCH FOR APPROACHING STORMS. LISTEN FOR FURTHER UPDATES AND POSSIBLE WARNINGS ON NOAA WEATHER RADIO. SHEA
Special weather statement, Jul 23, 3:56 PM CDT, 1 hour 44 minutes before
MOZ007-011-012-017-ILZ011-232200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 355 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI AND PARTS OF SOUTHWEST ILLINOIS UNTIL 800 PM... AT 350 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN FROM 35 MILES NORTH OF ST LOUIS...NEAR HARDIN ILLINOIS... TO 50 MILES WEST OF ST LOUIS...NEAR WARRENTON. THESE STORMS ARE MOVING EAST AT 20 MILES AN HOUR. RAINFALL FROM THESE STORMS HAS BEEN AS HIGH AS 1 TO 2 INCHES AN HOUR ALONG WITH GUSTY WIND AND FREQUENT LIGHTNING. IF YOU LIVE IN EAST CENTRAL MISSOURI OR SOUTHWEST ILLINOIS YOU CAN EXPECT ROUNDS OF TORRENTIAL RAIN FOR THE REMAINDER OF THE AFTERNOON. BE ALERT FOR FLASH FLOODING AND SEVERE WEATHER...LIKE LARGE HAIL AND DAMAGING WIND. WHEN A WARNING IS ISSUED...MOVE TO A PLACE OF SHELTER. PEOPLE WORKING ON LEVEES OR AREA FLOOD PROBLEMS SHOULD WATCH FOR APPRO ACHING STORMS. LISTEN FOR FURTHER UPDATES AND POSSIBLE WARNINGS ON NOAA WEATHER RADIO. SHEA
Special weather statement, Jul 23, 5:00 PM CDT, 40 minutes before
MOZ006-009-010-011-013-014-232300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 500 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH REAMINS IN EFFECT FOR PORTIONS OF CENTRAL MISSOURI UNTIL 8 PM... ...A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT...AND A FLASH FLOOD WARNING IS IN EFFECT FOR CALLAWAY COUNTY UNTIL 630 PM... AT 5PM...NEARLY STATIONARY...STRONG THUNDERSTORMS CONTINUED TO DROP HEAVY RAINS OVER PORTIONS OF CALLAWAY COUNTY. RADAR INDICATED AMOUNTS IN EXCESS OF 2 INCHES HAVE FALLEN OVER THE LAST 2 HOURS AND SEVERAL COUNTY ROADS IN THE SOUTHERN PART OF THE COUNTY ARE REPORTED AS IMPASSABLE DUE TO HIGH WATER. A VEHICLE WAS REPORTED SUBMERGED UNDER THE RISING WATER. ELSEWHERE...THUNDERSTORMS HAVE DIMINISHED IN INTENSITY AND NO SEVERE WEATHER REPORTS HAVE BEEN RECEIVED SINCE 400 PM. PERLOW
Special weather statement, Jul 23, 5:07 PM CDT, 33 minutes before
MOZ006-009-010-011-013-014-232300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 500 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH REAMINS IN EFFECT FOR PORTIONS OF CENTRAL MISSOURI UNTIL 8 PM... ...A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT...AND A FLASH FLOOD WARNING IS IN EFFECT FOR CALLAWAY COUNTY UNTIL 630 PM... AT 5PM...NEARLY STATIONARY...STRONG THUNDERSTORMS CONTINUED TO DROP HEAVY RAINS OVER PORTIONS OF CALLAWAY COUNTY. RADAR INDICATED AMOUNTS IN EXCESS OF 2 INCHES HAVE FALLEN OVER THE LAST 2 HOURS AND SEVERAL COUNTY ROADS IN THE SOUTHERN PART OF THE COUNTY ARE REPORTED AS IMPASSABLE DUE TO HIGH WATER. A VEHICLE WAS REPORTED SUBMERGED UNDER THE RISING WATER. ELSEWHERE...THUNDERSTORMS HAVE DIMINISHED IN INTENSITY AND NO SEVERE WEATHER REPORTS HAVE BEEN RECEIVED SINCE 400 PM. PERLOW
Special weather statement, Jul 23, 5:19 PM CDT, 21 minutes before
MOZ018-ILZ013-232315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 519 PM CDT FRI JUL 23 1993 ...HEAVY RAIN WAS FALLING IN STE. GENEVIEVE AND RANDOLPH COUNTIES... AT 515 PM...A LARGE AREA OF THUNDERSTORMS COVERED THE EASTERN HALF OF STE. GENEVIEVE COUNTY. THESE STORM WERE MOVING TO THE EAST AT 25 MILES AN WERE PRODUCING RAINFALL AMOUNTS OF OVER AN INCH IN ONE HOURS TIME. THESE STORMS WILL BE PRODUCING HEAVY RAIN IN EASTERN STE. GENEVIEVE COUNTY MISSOURI AND ALL OF RANDOLPH COUNTY ILLINOIS BETWEEN 520 AND 630 PM. ALONG WITH THE RIVER FLOODING THAT IS ALREADY OCCURING...SOME FLOODING OF STREETS AND LOW-LYING AREAS IS POSSIBLE. IF YOU OBSERVE RISING WATER...MOVE TO HIGHER GROUND IMMEDIATLEY. MORSE/TRUETT
Special weather statement, Jul 23, 5:21 PM CDT, 19 minutes before
MOZ018-ILZ013-232315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 519 PM CDT FRI JUL 23 1993 ...HEAVY RAIN WAS FALLING IN STE. GENEVIEVE AND RANDOLPH COUNTIES... AT 515 PM...A LARGE AREA OF THUNDERSTORMS COVERED THE EASTERN HALF OF STE. GENEVIEVE COUNTY. THESE STORM WERE MOVING TO THE EAST AT 25 MILES AN WERE PRODUCING RAINFALL AMOUNTS OF OVER AN INCH IN ONE HOURS TIME. THESE STORMS WILL BE PRODUCING HEAVY RAIN IN EASTERN STE. GENEVIEVE COUNTY MISSOURI AND ALL OF RANDOLPH COUNTY ILLINOIS BETWEEN 520 AND 630 PM. ALONG WITH THE RIVER FLOODING THAT IS ALREADY OCCURING...SOME FLOODING OF STREETS AND LOW-LYING AREAS IS POSSIBLE. IF YOU OBSERVE RISING WATER...MOVEH TO HIGHER GROUND IMMEDIATLEY. MORSE/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 54 min |
| Jul 23, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 44 min |
| Jul 23, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 45 min |
| Jul 23, 5:40 PM CDT | Flash Flood Warning | LSX | Monroe | 3 hr |
| Jul 23, 6:35 PM CDT | Flash Flood Warning | LSX | Perry | 2 hr |
Nearby
Flash Flood Warnings in Illinois, 1993Every flash flood warning in 1993
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.