Alert archive / Iowa / Flash Flood Warnings in 1993
Flash Flood Warning 1, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 24, 1993, 5:55 PM CDT for Des Moines County, Iowa. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jun 24, 1993, 5:55 PM CDT (22:55 UTC)
- Expired
- Jun 24, 1993, 8:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Des Moines County, IA
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 10.9 hours before the alert went out and 436 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
- 1579 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 795 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 318 m²/s²
- 0-3 km storm-relative helicity
- 328 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, Jun 24, 3:31 PM CDT, 2 hours 24 minutes before
ILZ004-IAZ078-088-089-099-242100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 330 PM CDT THUN JUN 24 1993 ...STRONG THUNDERSTORMS ARE DEVELOPING IN SOUTHEAST IOWA... AT 330 PM CDT...STRONG THUNDERSTORMS WITH HEAVY RAIN WERE DEVELOPING IN THE SOUTHEAST IOWA COUNTIES OF HENRY...LOUISA...AND FAR WESTERN MUSCATINE. THE STRONGEST OF THESE STORMS WERE IN NORTHEAST HENRY COUNTY NEAR WINFIELD...AND EXTENDED INTO WESTERN LOUISA COUNTY. OTHER STRONG STORMS WERE MOVING INTO THE WEST PORTION OF LEE COUNTY IN EXTREME SOUTHEAST IOWA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR..AND WERE ALSO DEVELOPING RAPIDLY. NEW STORM DEVELOPMENT WILL BE POSSIBLE JUST ABOUT ANYWHERE ACROSS THE BISTATE REGION. . STRONG STORMS WILL MOVE ACROSS THE IOWA COUNTIES OF MUSCATINE... HENRY...LOUISA...DES MOINES...AND LEE OVER THE NEXT COUPLE OF HOURS. VERY HEAVY RAIN AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. LAGUE
Special weather statement, Jun 24, 3:31 PM CDT, 2 hours 24 minutes before
ILZ004-IAZ078-088-089-099-242100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 330 PM CDT THUN JUN 24 1993 ...STRONG THUNDERSTORMS ARE DEVELOPING IN SOUTHEAST IOWA... AT 330 PM CDT...STRONG THUNDERSTORMS WITH HEAVY RAIN WERE DEVELOPING IN THE SOUTHEAST IOWA COUNTIES OF HENRY...LOUISA...AND FAR WESTERN MUSCATINE. THE STRONGEST OF THESE STORMS WERE IN NORTHEAST HENRY COUNTY NEAR WINFIELD...AND EXTENDED INTO WESTERN LOUISA COUNTY. OTHER STRONG STORMS WERE MOVING INTO THE WEST PORTION OF LEE COUNTY IN EXTREME SOUTHEAST IOWA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR..AND WERE ALSO DEVELOPING RAPIDLY. NEW STORM DEVELOPMENT WILL BE POSSIBLE JUST ABOUT ANYWHERE ACROSS THE BISTATE REGION. . STRONG STORMS WILL MOVE ACROSS THE IOWA COUNTIES OF MUSCATINE... HENRY...LOUISA...DES MOINES...AND LEE OVER THE NEXT COUPLE OF HOURS. VERY HEAVY RAIN AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. LAGUE
Special weather statement, Jun 24, 5:27 PM CDT, 28 minutes before
ILZ004-IAZ078-088-089-099-242245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 515 PM CDT THUN JUN 24 1993 ...SEVERE THUNDERSTORM WARNING FOR MERCER COUNTY HAS EXPIRED... THE SEVERE THUNDERSTORM WARNING WHICH HAD BEEN IN EFFECT FOR MERCER COUNTY IN ILLINOIS HAS EXPERIRED...EFFECTIVE AT 515 PM CDT. AT 515...RADAR INDICATED THAT THE STORM WHICH PROMPTED THE SEVERE THUNDERSTORM WARNING HAD DIMINISHED IN STRENGTH AND HAD MOVED INTO ROCK ISLAND COUNTY. NUMEROUS STORMS WERE STILL OCCURING ACROSS NORTHERN MERCER AND MOST OF ROCK ISLAND...BUT THESE WERE NOT SEVERE. THESE STORMS WILL...HOWEVER...PRODUCE TORRENTIAL RAINFALLS OF AN INCH OR MORE AS THEY MOVE ACOSS ROCK ISLAND COUNTY BETWEEN 515 AND 600 PM. WIND GUSTS TO 45 MILES AN HOUR WILL ALSO BE LIKELY... AS WELL AS SMALL HAIL. . LAGUE
Special weather statement, Jun 24, 5:27 PM CDT, 28 minutes before
ILZ004-IAZ078-088-089-099-242245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 515 PM CDT THUN JUN 24 1993 ...SEVERE THUNDERSTORM WARNING FOR MERCER COUNTY HAS EXPIRED... THE SEVERE THUNDERSTORM WARNING WHICH HAD BEEN IN EFFECT FOR MERCER COUNTY IN ILLINOIS HAS EXPERIRED...EFFECTIVE AT 515 PM CDT. AT 515...RADAR INDICATED THAT THE STORM WHICH PROMPTED THE SEVERE THUNDERSTORM WARNING HAD DIMINISHED IN STRENGTH AND HAD MOVED INTO ROCK ISLAND COUNTY. NUMEROUS STORMS WERE STILL OCCURING ACROSS NORTHERN MERCER AND MOST OF ROCK ISLAND...BUT THESE WERE NOT SEVERE. THESE STORMS WILL...HOWEVER...PRODUCE TORRENTIAL RAINFALLS OF AN INCH OR MORE AS THEY MOVE ACOSS ROCK ISLAND COUNTY BETWEEN 515 AND 600 PM. WIND GUSTS TO 45 MILES AN HOUR WILL ALSO BE LIKELY... AS WELL AS SMALL HAIL. . LAGUE
Special weather statement, Jun 24, 5:40 PM CDT, 15 minutes before
ILZ004-IAZ078-088-089-099-242315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 535 PM CDT THUN JUN 24 1993 ...TORRENTIAL RAINS IN THE QUAD CITY AREA... ...URBAN AND SMALL STREAM FLOOD ADVISORY IN EFFECT FOR THE BISTATE AREA TONIGHT...INCLUDING THE QUAD CITIES... AT 530 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE IN THE QUAD CITY AREA...AND EXTENDED NORTHEAST ALONG THE MISSISSIPPI RIVER TO AROUND CLINTON IOWA. THESE STORMS PRODUCED AROUND AN INCH OF RAIN AT THE QUAD CITY AIRPORT IN BETWEEN 500 PM AND 530 PM. OTHER STRONG STORM WERE DEVELOPING IN WESTERN MUSCATINE COUNTY IOWA. SCATTERED SHOWERS AND SMALLER STORMS COVERED MOST OF THE REMAINDER OF THE BISTATE AREA. ALL STORMS ARE MOVING NORTHEAST AT 30 MILES AN HOUR. . IF YOU LIVE IN THE QUAD CITIES...OR ANYWHERE IN ROCK ISLAND AND SCOTT COUNTIES...BE PREPARED FOR VERY HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LAGUE
Special weather statement, Jun 24, 5:40 PM CDT, 15 minutes before
ILZ004-IAZ078-088-089-099-242315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 535 PM CDT THUN JUN 24 1993 ...TORRENTIAL RAINS IN THE QUAD CITY AREA... ...URBAN AND SMALL STREAM FLOOD ADVISORY IN EFFECT FOR THE BISTATE AREA TONIGHT...INCLUDING THE QUAD CITIES... AT 530 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE IN THE QUAD CITY AREA...AND EXTENDED NORTHEAST ALONG THE MISSISSIPPI RIVER TO AROUND CLINTON IOWA. THESE STORMS PRODUCED AROUND AN INCH OF RAIN AT THE QUAD CITY AIRPORT IN BETWEEN 500 PM AND 530 PM. OTHER STRONG STORM WERE DEVELOPING IN WESTERN MUSCATINE COUNTY IOWA. SCATTERED SHOWERS AND SMALLER STORMS COVERED MOST OF THE REMAINDER OF THE BISTATE AREA. ALL STORMS ARE MOVING NORTHEAST AT 30 MILES AN HOUR. . IF YOU LIVE IN THE QUAD CITIES...OR ANYWHERE IN ROCK ISLAND AND SCOTT COUNTIES...BE PREPARED FOR VERY HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LAGUE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 4:10 PM CDT | Tornado Warning | DVN | Henry | 20 min |
| Jun 24, 4:12 PM CDT | Tornado Warning | DVN | Louisa | 33 min |
| Jun 24, 1:06 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 39 min |
| Jun 24, 4:42 PM CDT | Severe Thunderstorm Warning | DVN | Mercer | 33 min |
| Jun 24, 6:18 PM CDT | Flash Flood Warning | DVN | Rock Island | 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.