Alert archive / Iowa / Flash Flood Warnings in 1993
Flash Flood Warning 12, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at May 4, 1993, 7:55 AM CDT for Jones County, Iowa. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 4, 1993, 7:55 AM CDT (12:55 UTC)
- Expired
- May 4, 1993, 12:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Jones County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 0.9 hours before the alert went out and 444 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
- 975 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 6 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 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, May 4, 5:45 AM CDT, 2 hours 10 minutes before
IAZALL-041135- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 543 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 533 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF BLOOMFIELD NORTH TO MARENGO. BLOOMFIELD IS 20 MILES SOUTH OF OTTUMWA WHILE MARENGO IS ABOUT 15 MILES SOUTHWEST OF CEDAR RAPIDS. THE HEAVIEST RAINS WERE IN EASTERN WAPELLO AND WESTERN JEFFERSON COUNTIES. PARTS OF WAPPELO COUNTY IN PARTICULAR THE OTTUMWA AREA HAS HAD VERY HEAVY RAINS OVER THE PAST TWO DAYS AND ANY ADDITIONAL RAINFALL WILL RAPIDLY RUNOFF INTO AREA RIVERS AND STREAMS. ANOTHER CLUSTER OF SHOWERS WAS SITUATED OVER NORTHEAST AND NORTH CENTRAL IOWA BETWEEN WATERLOO AND MASON CITY. THE SHOWERS WERE DRIFTING NORTHWEST AT 5 TO 10 MILES AN HOUR. BA*RLOW
Special weather statement, May 4, 6:40 AM CDT, 1 hour 15 minutes before
IAZALL-041235- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 640 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 634 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF BLOOMFIELD NORTH TO MARENGO. BLOOMFIELD IS 20 MILES SOUTH OF OTTUMWA WHILE MARENGO IS ABOUT 15 MILES SOUTHWEST OF CEDAR RAPIDS. THE HEAVIEST RAINS WERE IN EASTERN WAPELLO AND WESTERN JEFFERSON COUNTIES. RAINFALL AMOUNTS ARE EXPECTED TO BE IN THE 1 TO 2 INCH RANGE WITH A FEW LOCATIONS EXCEEDING 2 INCHES. A SMALL CLUSTER OF SHOWERS PERSISTED OVER NORTH CENTRAL AND NORTHEAST IOWA BETWEEN WATERLOO AND MASON CITY. THE SHOWERS WERE DRIFTING NORTHWEST AT 5 MILES AN HOUR ALTHOUGH THE SMALL CLUSTER OF SHOWERS BETWEEN MASON CITY AND WATERLOO SHOWED LITTLE IF ANY MOVEMENT SINCE 530 AM CDT. BARLOW
Special weather statement, May 4, 6:42 AM CDT, 1 hour 13 minutes before
IAZALL-041235- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 640 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 634 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF BLOOMFIELD NORTH TO MARENGO. BLOOMFIELD IS 20 MILES SOUTH OF OTTUMWA WHILE MARENGO IS ABOUT 15 MILES SOUTHWEST OF CEDAR RAPIDS. THE HEAVIEST RAINS WERE IN EASTERN WAPELLO AND WESTERN JEFFERSON COUNTIES. RAINFALL AMOUNTS ARE EXPECTED TO BE IN THE 1 TO 2 INCH RANGE WITH A FEW LOCATIONS EXCEEDING 2 INCHES. A SMALL CLUSTER OF SHOWERS PERSISTED OVER NORTH CENTRAL AND NORTHEAST IOWA BETWEEN WATERLOO AND MASON CITY. THE SHOWERS WERE DRIFTING NORTHWEST AT 5 MILES AN HOUR ALTHOUGH THE SMALL CLUSTER OF SHOWERS BETWEEN MASON CITY AND WATERLOO SHOWED LITTLE IF ANY MOVEMENT SINCE 530 AM CDT. BARLOW
Special weather statement, May 4, 7:40 AM CDT, 15 minutes before
IAZALL-041335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED NATIONAL WEATHER SERVICE DES MOINES IA 740 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 733 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF MOULTON NORTH TO OSKALOOSA THEN NORTHEAST THROUGH CEDAR RAPIDS TO DUBUQUE. MOULTON IS 25 MILES SOUTH SOUTHWEST OF OTTUMWA WHILE OSKALOOSA IS ABOUT 15 MILES NORTHWEST OF OTTUMWA. RAINFALL AMOUNTS REPORTED BETWEEN OTTUMWA AND BURLINGTON HAVE BEEN IN THE 1 TO 2 INCH RANGE AND ADDITIONAL RAIN IS EXPECTED THROUGH MID MORNING. SIGNIFICANT RISES ON AREA RIVERS AND STREAMS CAN BE EXPECTED. A SMALL CLUSTER OF SHOWERS PERSISTED OVER NORTH CENTRAL AND NORTHEAST IOWA BETWEEN WATERLOO...MASON CITY AND MARSHALLTOWN. MARSHALLTOWN IS 45 MILES NORTHEAST OF DES MOINES. THE SHOWERS WERE MOVING NORTHWEST AT 5 MILES AN HOUR...ALTHOUGH THE SMALL CLUSTER OF SHOWERS OVER NORTH CENTRAL AND NORTHEAST IOWA HAS MOVED LITTLE IN THE PAST TWO HOURS. BARLOW
Special weather statement, May 4, 7:43 AM CDT, 12 minutes before
IAZALL-041335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 740 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 733 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF MOULTON NORTH TO OSKALOOSA NORTHEAST THROUGH CEDAR RAPIDS TO DUBUQUE. MOULTON IS 25 MILES SOUTH SOUTHWEST OF OTTUMWA WHILE OSKALOOSA IS ABOUT 15 MILES NORTHWEST OF OTTUMWA. RAINFALL AMOUNTS REPORTED BETWEEN OTTUMWA AND BURLINGTON HAVE BEEN IN THE 1 TO 2 INCH RANGE AND ADDITIONAL RAIN IS EXPECTED THROUGH MID MORNING. SIGNIFICANT RISES ON AREA RIVERS AND STREAMS CAN BE EXPECTED. A SMALL CLUSTER OF SHOWERS PERSISTED OVER NORTH CENTRAL AND NORTHEAST IOWA BETWEEN WATERLOO AND MASON CITY AND MARSHALLTOWN. MARSHALLTOWN IS 45 MILES NORTHEAST OF DES MOINES. THE SHOWERS WERE MOVING NORTHWEST AT 5 MILES AN HOUR...ALTHOUGH THE SMALL CLUSTER OF SHOWERS OVER NORTH CENTRAL AND NORTHEAST IOWA HAS MOVED LITTLE IN THE PAST TWO HOURS. BARLOW
Special weather statement, May 4, 7:51 AM CDT, 4 minutes before
IAZALL-041335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED NATIONAL WEATHER SERVICE DES MOINES IA 740 AM CDT TUE MAY 4 1993 ...FLOOD WARNING FOR SOUTHEAST IOWA UNTIL 8AM THIS MORNING... AT 733 AM CDT...SHOWERS...SOME PRODUCING HEAVY RAIN...CONTINUED OVER EAST CENTRAL AND SOUTHEAST IOWA. THESE SHOWERS WERE LOCATED ALONG AND EAST OF A LINE FROM THE IOWA/MISSOURI BORDER SOUTH OF MOULTON NORTH TO OSKALOOSA THEN NORTHEAST THROUGH CEDAR RAPIDS TO DUBUQUE. MOULTON IS 25 MILES SOUTH SOUTHWEST OF OTTUMWA WHILE OSKALOOSA IS ABOUT 15 MILES NORTHWEST OF OTTUMWA. RAINFALL AMOUNTS REPORTED BETWEEN OTTUMWA AND BURLINGTON HAVE BEEN IN THE 1 TO 2 INCH RANGE AND ADDITIONAL RAIN IS EXPECTED THROUGH MID MORNING. SIGNIFICANT RISES ON AREA RIVERS AND STREAMS CAN BE EXPECTED. A SMALL CLUSTER OF SHOWERS PERSISTED OVER NORTH CENTRAL AND NORTHEAST IOWA BETWEEN WATERLOO...MASON CITY AND MARSHALLTOWN. MARSHALLTOWN IS 45 MILES NORTHEAST OF DES MOINES. THE SHOWERS WERE MOVING NORTHWEST AT 5 MILES AN HOUR...ALTHOUGH THE SMALL CLUSTER OF SHOWERS OVER NORTH CENTRAL AND NORTHEAST IOWA HAS MOVED LITTLE IN THE PAST TWO HOURS. BARLOW
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 4:59 AM CDT | Flash Flood Warning | DMX | Davis, Jefferson, Van Buren, Wapello | 3 hr |
| May 4, 4:59 AM CDT | Flash Flood Warning | DMX | Washington | 3 hr |
| May 4, 4:59 AM CDT | Flash Flood Warning | DMX | Jones | 3 hr |
| May 4, 7:55 AM CDT | Flash Flood Warning | DMX | Davis, Jefferson, Van Buren, Wapello | 4 hr |
| May 4, 7:55 AM CDT | Flash Flood Warning | DMX | Washington | 4 hr |
Nearby
Flash Flood Warnings in Iowa, 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.