Alert archive / Illinois / Flash Flood Warnings in 1994
Flash Flood Warning 26, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 28, 1994, 6:35 AM CDT for Jefferson County, Missouri; Monroe County, Saint Clair County, Illinois. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 28, 1994, 6:35 AM CDT (11:35 UTC)
- Expired
- Apr 28, 1994, 10:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Saint Clair County, IL, Jefferson County, MO
The radar
The St Louis radar (KLSX), 57 km from the middle of the area, began a volume at 11:37 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
Springfield, MO (KUMN), launched 00:00Z, 11.6 hours before the alert went out and 354 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
- 852 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 493 m²/s²
- 0-3 km storm-relative helicity
- 792 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 281138 FFWSTL ILC133-163-MOC099-281530- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 635 AM CDT THU APR 28 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1030 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...MONROE COUNTY...ST CLAIR COUNTY IN EAST CENTRAL MISSOURI ...JEFFERSON COUNTY AT 630 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A BAND OF HEAVY THUNDERSTORMS TRAILED FROM 20 MILES SOUTHWEST OF ST LOUIS..NEAR PACAFIC...SOUTHWEST TO AROUND STEELVILLE MISSOURI...80 MILES SOUTHWEST OF ST LOUIS. THESE STORMS WERE MOVING TO THE NORTHEAST AT 40 MPH AND WILL MOVE ACROSS THE MISSISSIPPI RIVER INTO ILLINOIS BETWEEN 730 AND 830 AM THIS MORNING. DOPPLER PRECIPITATION ESTIMATES INDICATE ONE TO TWO INCHES OF RAIN HAS ALREADY FALLEN IN NORTHERN PORTIONS OF THESE COUNTIES. RAINS WILL BE VERY HEAVY AT TIMES THIS MORNING. FLOODING OF SMALLER STREAMS AND TRIBUTARIES WILL BE IMMINENT ALONG WITH PONDING AND LOCAL FLOODING OF ROADWAYS...ESPECIALLY SECONDARY ROADS WITH POORER DRAINAGE. RAINFALL WILL LIKELY CONTINUE THROUGH THE MORNING...HEAVY AT TIMES. 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. PEDIGO
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, Apr 28, 12:49 AM CDT, 5 hours 46 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-280645 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1245 AM CDT THU APR 28 1994 ...STRONG THUNDERSTORMS WERE MOVING THROUGH THE SOUTH HALF OF CENTRAL MISSOURI... AT 1240 AM STRONG THUNDERSTORMS WERE SCATTERED FROM THE NORTH END OF THE LAKE OF THE OZARKS TO JEFFERSON CITY AND THEN EAST TO HERMANN IN GASCONADE COUNTY AND BELLE IN MARIES COUNTY. THE STRONGEST STORMS WERE LOCATED 35 MILES EAST AND 25 MILES SOUTHEAST OF JEFFERSON CITY. THESE STRONGEST STORMS MAY PRODUCE SMALL HAIL AND STRONG GUSTY WINDS. ALL OF THE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAIN WHICH MAY CAUSE FLOODING OF LOW LYING AREAS IN TOWNS AND ON COUNTY ROADS. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH. IF YOU LIVE IN FLOOD PRONE AREAS BE ALERT TO POSSIBLE FLOODING. IF YOU ARE DRIVING...SLOW DOWN WHEN CROSSING LOW BRIDGES OR LOW SPOTS IN TOWNS. KENNEDY
Special weather statement, Apr 28, 1:00 AM CDT, 5 hours 35 minutes before
MOZ060>065-ILZ100>102-280800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1258 AM CDT THU APR 28 1994 ...THUNDERSTORMS CONTINUE TO FORM OVER THE BI-STATE AREA... AT 1255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ACROSS EAST CENTRAL MISSOURI. THE STORMS EXTEND FROM 20 MILES WEST OF ST. CHARLES TO 15 MILES WEST OF WASHINGTON. STORMS WERE MOVING TO THE EAST TO NORTHEAST AT 35 TO 40 MPH. THESE STORMS WILL BRING SMALL HAIL AND ISOLATED AREAS OF HEAVY RAIN ACROSS THE MISSOURI COUNTIES OF WARREN...FRANKLIN...JEFFERSON...ST. CHARLES...ST. LOUIS AND ST. LOUIS CITY...AND THE ILLINOIS COUNTIES OF MADISON...ST. CLAIR...AND MONROE. THIS ACTIVITY WILL OCCUR BETWEEN ONE AND THREE THIS MORNING. REMEMBER...LIGHTNING MAY STRIKE SOME MILES AWAY FROM THE PARENT CLOUD. PRECAUTIONS SHOULD BE TAKEN EVEN THOUGH THE THUNDERSTORM IS NOT DIRECTLY OVERHEAD. ST/DM
Special weather statement, Apr 28, 4:49 AM CDT, 1 hour 46 minutes before
MOZ045>051-055>059-068>070-281050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MISSOURI 447 AM CDT THU APR 28 1994 ...SEVERE THUNDERSTORM WATCH FOR THE SOUTHERN HALF OF CENTRAL MISSOURI UNTIL 800 AM... AT 435 AM VERY STRONG THUNDERSTORMS WERE SCATTERED IN A 10 MILE WIDE AREA FROM NEAR ROLLA TO 50 MILES SOUTH OF SEDALIA NEAR HERMITAGE. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. A SMALL TREEWAS BLOWN OVER BY ONE OF THESE THUNDERSTORMS NEAR ELKTON IN SOUTHERN HICKORY COUNTY...AND LARGE HAIL WAS REPORTED WITH A THUNDERSTORM EARLIER IN DALLAS COUNTY. THE THUNDERSTORMS HAD DECREASED SOMEWHAT IN INTENSITY BUT WERE STILL CAPABLE OF PRODUCING GUSTY WINDS AND HAIL. IF YOU LIVE IN LINN CREEK...TUSCUMBIA OR VIENNA BE PREPARED FOR THESE THUNDERSTORMS BETWEEN 440 AM AND 515 AM THIS MORNING IF SEVERE THUNDERSTORMS THREATEN YOUR AREA GET TO A STRONG BUILDING AWAY FROM WINDOWS. PASS ALONG AND SEVERE WEATHER INFORMATION TO THE NEAREST LAW ENFORCEMENT AGENCY SO IT CAN BE RELAYED TO THE NATIONAL WEATHER SERVICE. LA GREE
Special weather statement, Apr 28, 5:03 AM CDT, 1 hour 32 minutes before
MOZ053>057-066>069-077>081-088>096-101>105-281100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 502 AM CDT THU APR 28 1994 ...SEVERE THUNDERSTORM WATCH HAS EXPIRED ACROSS EXTREME PORTIONS OF WEST CENTRAL AND SOUTHWEST MISSOURI... ...FLASH FLOOD WATCH CONTINUES FOR CENTRAL AND SOUTHERN MISSOURI THIS MORNING... SEVERE THUNDERSTORM WATCH #162 FOR THE FOLLOWING COUNTIES OF BATES... HENRY...ST CLAIR...VERNON...BARTON...DADE...JASPER...LAWRENCE... NEWTON...MCDONALD...AND BARRY HAS EXPIRED AND WILL NOT BE REISSUED. HOWEVER...A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERED MUCH OF WEST CENTRAL AND SOUTHWEST MISSOURI AT 500 AM CDT. THESE STORMS WILL HAVE THE POTENTIAL OF PRODUCING SMALL HAIL AND LOCALLY HEAVY RAINFALL. THUS...FLASH FLOOD WATCHES REMAIN IN EFFECT FOR MUCH OF CENTRAL AND SOUTHERN MISSOURI THIS MORNING. PEOPLE IN THE FLASH FLOOD WATCH AREA SHOULD MONITOR FLOOD CONDITIONS...AND BE PREPARED TO MOVJE TO HIGHER GROUND...SHOULD FLOODWATERS THREATEN. METZE
Special weather statement, Apr 28, 5:12 AM CDT, 1 hour 23 minutes before
MOZ001>115-KSZ102>105-ILZ095>102-271800- MISSOURI SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 512 AM CDT THU APR 28 1994 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND THIS EVENING FOR PARTS OF EASTERN MISSOURI. THIS RISK IS GENERALLY EAST OF A QUINCY...ROLLA...TO CAPE GIRARDEAU LINE...AND INCLUDES THE ENTIRE ST LOUIS METRO AREA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY OVER THE REMAINDER OF MISSOURI...EZXCEPT THE EXTREME NORTHWEST CORNER. STORM SPOTTER GROUPS AND EMERGENCY MANAGERS ARE URGED TO KEEP ADVISED OF THE LATEST FORECAST AND WATCH INFORMATION. SKYWARN SPOTTER ACTION MAY BE NEEDED TODAY AND THIS EVENING. SHEA
Special weather statement, Apr 28, 5:26 AM CDT, 1 hour 9 minutes before
MOZ047>049-055>065-068>076-079>087-090>092-095-096-098>100-103- ILZ099>102-281200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 525 AM CDT THU APR 28 1994 ...SEVERE THUNDERSTORMS WATCH #165 FOR PORTIONS OF CENTRAL AND SOUTHERN MISSOURI IS IN EFFECT UNTIL 800 AM CDT... AT 515 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADARS CONTINUED TO SHOW A LARGE AREA OF SHOWERS AND THUNDERSTORMS FROM JUST NORTH OF JOPLIN TO THE ST. LOUIS METROPOLITAN AREA. THESE STORM WERE MOVING TO THE EAST TO NORTHEAST AT 40 MPH. THE MAIN THREAT OF SEVERE WEATHER SEEMS TO BE LARGE HAIL AND LOCALLY HEAVY RAIN THIS MORNING. THUS...THE SEVERE THUNDERSTORM WATCH WILL CONTINUE. ALSO...A FLASH FLOOD WATCH CONTINUES FOR PORTIONS OF CENTRAL AND SOUTHERN MISSOURI THIS MORNING. DO NOT TRY TO CROSS A FLOWING STREAM ON FOOT OR WITH YOUR AUTOMOBILE... AS THE DEPTH AND CURRENT STRENGTH MAY BE TO HARD TO JUDGE. MOST FLASH FLOOD DEATHS OCCUR AT NIGHT WHEN IT IS HARD TO DETERMINE FLOODED CONDITIONS. . STAY TUNED TO LOCAL MEDIA OR NOAA WEATHER RADIO FOR THE LASTEST WARNINGS AND STATEMENTS. METZE
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:19 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 56 min |
| Apr 28, 1:23 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 47 min |
| Apr 28, 1:58 AM CDT | Flash Flood Warning | LSX | Franklin | 4 hr |
| Apr 28, 2:21 AM CDT | Flash Flood Warning | LSX | Saint Charles, Saint Louis | 4 hr |
| Apr 28, 2:21 AM CDT | Flash Flood Warning | LSX | City of Saint Louis | 4 hr |
| Apr 28, 3:30 AM CDT | Flash Flood Warning | LSX | Franklin | 5 hr |
| Apr 28, 5:12 AM CDT | Flash Flood Warning | LSX | Crawford, Phelps | 4 hr |
| Apr 28, 5:55 AM CDT | Flash Flood Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 4 hr |
| Apr 28, 5:55 AM CDT | Flash Flood Warning | LSX | Franklin | 4 hr |
| Apr 28, 8:39 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Francois, Washington | 35 min |
| Apr 28, 11:25 AM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 47 min |
| Apr 28, 12:17 PM CDT | Tornado Warning | LSX | Sainte Genevieve | 43 min |
| Apr 28, 12:17 PM CDT | Tornado Warning | LSX | Saint Francois | 32 min |
| Apr 27, 7:05 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 40 min |
| Apr 28, 3:03 AM CDT | Flash Flood Warning | LSX | Madison | 5 hr |
| Apr 28, 10:45 AM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair | 3 hr |
| Apr 28, 12:22 PM CDT | Tornado Warning | LSX | Randolph | 38 min |
| Apr 28, 12:40 PM CDT | Tornado Warning | LSX | Washington | 50 min |
| Apr 28, 12:40 PM CDT | Tornado Warning | LSX | Saint Clair | 24 min |
| Apr 28, 1:00 PM CDT | Tornado Warning | LSX | Randolph | 23 min |
| Apr 28, 1:00 PM CDT | Tornado Warning | LSX | Perry | 45 min |
Nearby
Flash Flood Warnings in Illinois, 1994Flash Flood Warnings in Missouri, 1994Every flash flood warning in 1994
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.