Alert archive / Missouri / Flash Flood Warnings in 1994
Flash Flood Warning 4, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 11, 1994, 6:08 AM CDT for Phelps County, Missouri. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 11, 1994, 6:08 AM CDT (11:08 UTC)
- Expired
- Apr 11, 1994, 12:15 PM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Phelps County, MO
The radar
The St Louis radar (KLSX), 133 km from the middle of the area, began a volume at 11:10 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, 11.1 hours before the alert went out and 208 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
- 147 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 613 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 437 m²/s²
- 0-3 km storm-relative helicity
- 464 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 111111 FFWSTL MOC055-099-161-187-186-221-111715- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 608 AM CDT MON APR 11 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...CRAWFORD COUNTY...JEFFERSON COUNTY...PHELPS COUNTY ...ST FRANCOIS COUNTY...STE GENEVIEVE COUNTY...WASHINGTON COUNTY AT 6 AM...FLOODING CONTINUED OVER PORTIONS OF SOUTHEAST MISSOURI BETWEEN ROLLA AND STE GENEVIEVE. NUMEROUS ROADS ARE CLOSED IN THESE AREAS...AND MANY CREEKS AND STREAMS WERE OUT OF THEIR BANKS. RAINFALL ESTIMATES FROM RADAR SUGGEST THAT 1 TO 2 INCHES OF RAIN FELL OVER THESE AREAS DURING THE NIGHT...AND THIS IS IN ADDITION TO THE HEAVY RAINS THAT OCCURRED SATURDAY NIGHT AND EARLY SUNDAY. NATIONAL WEATHER SERVICE RADAR INDICATES THAT SCATTERED THUNDERSTORMS WI HEAVY RAINS WILL CONTINUE OVER SOUTHEAST MISSOURI FOR THE NEXT FEW HOURS. THESE RAINS WILL BE CAUSING ADDITIONAL FLOODING PROBLEMS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTREMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. & TRUETT/GLASS
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 11, 2:02 AM CDT, 4 hours 6 minutes before
MOZ001>105-110900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 200 AM CDT MON APR 11 1994 ...ANOTHER SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR SOUTHWEST... SOUTH CENTRAL...AND PARTS OF CENTRAL MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR SOUTHWEST...SOUTH CENTRAL...AND PARTS OF CENTRAL MISSOURI UNTIL 9 AM MONDAY MORNING. THIS WATCH INCLUDES SECTIONS OF THE STATE ALONG AND SOUTH OF A BUTLER...CLINTON...JEFFERSON CITY LINE. SOME OTHER CITIES IN THE WATCH INCLUDE JOPLIN...SPRINGFIELD...NEVADA...CAMDENTON...BRANSON ...AND WEST PLAINS. INTENSE THUNDERSTORMS CONTINUE TO FORM OVER SOUTHEAST KANSAS AND NORTHEAST OKLAHOMA AND MOVE INTO WESTERN MISSOURI. THIS TREND WILL CONTINUE FOR THE REMAINDER OF THE NIGHT...WHICH MEANS A POTENTIAL FOR LARGE HAIL...DAMAGING WINDS...AND HEAVY RAIN THROUGHOUT SOUTHWEST... SOUTH CENTRAL...AND CENTRAL MISSOURI. PEOPLE IN THE WATCH AREA SHOULD CAREFULLY MONITOR WEATHER DEVELOPMENTS THROUGHOUT THE NIGHT BY LISTENING TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR LATER STATEMENTS OR POSSIBLE WARNINGS. TRUETT
Special weather statement, Apr 11, 3:30 AM CDT, 2 hours 38 minutes before
MOZALL-111030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 327 AM CDT MON APR 11 1994 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF SOUTHWEST AND SOUTH CENTRAL MISSOURI UNTIL 9 AM CDT THIS MORNING... AT 330 AM NATIONAL WEATHER SERVICE RADAR INDICATED A NEARLY STATIONARY BAND OF THUNDERSTORMS WHICH TRAILED FROM EAST CENTRAL MISSOURI THROUGH SOUTHWEST MISSOURI...INTO OKLAHOMA. NO SEVERE WEATHER HAS BEEN REPORTED SINCE 230 AM CDT...HOWEVER AS THESE STORMS LIFT OUT OF OKLAHOMA AND KANSAS INTO MISSOURI..SOME OF THESE STORMS COULD PRODUCE HAIL AND DAMAGING WINDS. THE ORIENTATION OF THESE STORMS IS SUCH THAT ONE STORM FOLLOWS ANOTHER...DUMPING COPIOUS AMOUNTS OF RAIN ON LOCAL AREAS. PERSONS IN COMMUNITES STRETCHING FROM NEAR NEVADA MISSOURI...50 MILES NORTH OF JOPLIN...TO NORTH PORTIONS OF LAKE OF THE OZARKS CAN EXPECT FREQUENT PERIODS OF RAIN WITH POSSIBLE FLASH FLOODING. HAIL AND DAMAGING WINDS COULD ACCOMPANY SOME OF THESE STORMS AS WELL. PEDIGO
Special weather statement, Apr 11, 5:55 AM CDT, 13 minutes before
MOZ001>105-KSZ012>105-ILZ095>102-111600- MISSOURI SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 6 AM CDT MON APR 11 1994 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT OVER SOUTHWEST AND SOUTH CENTRAL MISSOURI...GENERALLY ALONG AND SOUTH OF A JOPLIN...SPRINGFIELD...WEST PLAINS LINE. A SLIGHT RISK OF SEVERE THUNDERSTORMS IS POSSIBLE OVER THE REMAINDER OF THE STATE. STORM SPOTTER GROUPS AND EMERGENCY MANAGERS SH"OULD KEEP ADVISED OF THE LATEST FORECASTS FOR POSSIBLE SKYWARN ACTION. TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 1:18 AM CDT | Flash Flood Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois, Washington | 5 hr |
| Apr 11, 6:08 AM CDT | Flash Flood Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 6 hr |
| Apr 11, 6:08 AM CDT | Flash Flood Warning | LSX | Crawford, Washington | 6 hr |
| Apr 11, 7:13 AM CDT | Flash Flood Warning | LSX | Pike, Ralls | 6 hr |
| Apr 11, 7:13 AM CDT | Flash Flood Warning | LSX | Monroe | 6 hr |
| Apr 11, 7:29 AM CDT | Flash Flood Warning | LSX | Franklin | 5 hr |
| Apr 11, 6:00 PM CDT | Flash Flood Warning | LSX | Saint Charles | 4 hr |
Nearby
Flash 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.