Alert archive / Iowa / Flash Flood Warnings in 1993
Flash Flood Warning 75, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jul 17, 1993, 6:03 PM CDT for Buchanan County, Iowa. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1993, 6:03 PM CDT (23:03 UTC)
- Expired
- Jul 17, 1993, 9:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Buchanan County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 11.1 hours before the alert went out and 300 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
- 602 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 619 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KALO 172304 FFWALO IAC019-180200- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE WATERLOO IA 603 PM CDT SAT JUL 17 1993 THE NATIONAL WEATHER SERVICE IN WATERLOO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST IOWA ...SOUTHERN BUCHANAN COUNTY AT 558 PM...THUNDERSTORMS PRODUCING FLASH FLOODING WERE LOCATED ALONG THE BUCHANAN AND LINN COUNTY LINE. THESE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. THIS CLUSTER OF THUNDERSTORMS HAS CAUSED LIME CREEK...BEAR CREEK...PINE CREEK AND DRY RUN CREEK TO LEAVE THEIR BANKS. ALSO MANY REPORTS OF STREET AND HIGHWAY FLOODING WERE OCCURING. THE SHERIFFS OFFICE IN INDEPENDENCE ABOUT 25 MILES EAST OF WATERLOO REPORTED WATER WAS STILL RISING. RESIDENTS OF BRANDON...ROWLEY...JESUP...AND QUASQUETON SHOULD BE PREPARED TO TAKE QUICK ACTION!! DO NOT ATTEMPT TO DRIVE THROUGH RISING FLOOD WATERS. IF YOU ARE CAUGHT IN YOUR VEHICLE IN RISING FLOOD WATERS...ABANDON IT IMMEDIATELY AND MOVE TO HIGHER GROUND. LINDENBERG/ROBB &
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 17, 5:17 PM CDT, 46 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-172300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 500 PM CDT SAT JUL 17 1993 ...THUNDERSTORMS WERE RUMBLING ACROSS NORTHEAST IOWA THIS EVENING... AT 500 PM...THUNDERSTORMS PRODUCING HEAVY RAIN...SMALL HAIL...WIND GUSTS OF 35 TO 40 MILES AN HOUR AND DEADLY LIGHTNING WERE MOVING ACROSS THE AREA FROM WATERLOO SOUTHEAST TO JUST NORTH OF CEDAR RAPIDS. THESE STORMS HAVE CAUSED SOME SMALL STREAMS TO OVERFLOW AND SOME STREET FLOODING WAS OCCURRING IN EVANSDALE. WINDS OF 35 TO 40 MILES AN HOUR WERE REPORTED AT HICKORY HILLS ABOUT 20 MILES SOUTH OF WATERLOO. PEOPLE IN THE TOWNS OF EASTERN BLACK HAWK AND BUCHANAN COUNTY...ELK RUN HEIGHTS...EVANSDALE...JESUP...LAPORTE CITY...RAYMOND...ROWLEY... BRANDON AND QUASQUETON SHOULD BE ALERT FOR THESE STORMS FROM 5 TO 630 PM. THESE TOWNS ARE ALL EAST AND SOUTHEAST OF WATERLOO. IN ADDITION SOME SHOWERS WERE OCCURRING FROM CHARLES CITY TO DECORAH. ...REMEMBER THAT A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM CDT ALONG AND A LITTLE NORTH OF THE HIGHWAY 20 CORRIDOR IN NORTHEAST IOWA ALONG WITH A FLASH FLOOD WATCH FOR THE SAME AREA TONIGHT.< STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR MORE INFORMATION ...LATER STATEMENTS...ADVISORIES AND POSSIBLE WARNINGS. CORRECTED FOR SPELLING PAR 3 AND 5 ROBB
Special weather statement, Jul 17, 5:47 PM CDT, 16 minutes before
IAZALL-172340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 547 PM CDT SAT JUL 17 1993 ...A SEVERE THUNDERSTORMS WATCH CONTINUES FOR PORTIONS OF SOUTHERN AND CENTRAL IOWA UNTIL 10 PM THIS SATURDAY EVENING... ...A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR THE SOUTHEAST HALF OF IOWA... AT 527 PM CDT...STRONG THUNDERSTORMS CONTINUED ACROSS PARTS OF IOWA. ONE STORM AREA WAS 100 MILES WIDE AND EXTENDED FROM 30 MILES SOUTHWEST OF CEDAR RAPIDS NEAR BROOKLYN TO THE NORTHEAST CORNER OF IOWA NEAR WAUKON. ANOTHER STORM AREA WAS BOUNDED FROM NEAR SIOUX CITY...TO 25 MILES EAST OF DES MOINES NEAR NEWTON...TO 10 MILES SOUTHEAST OF NEWTON...TO THE MISSOURI BORDER 10 MILES SOUTH OF CLARINDA. THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS AND FREQUENT DEADLY LIGHTNING WERE LOCATED FROM CEDAR RAPIDS TO 15 MILES SOUTHWEST OF CEDAR RAPIDS...JUST NORTHEAST OF VINTON...10 MILES NORTH OF WINTERSET AND 5 MILES NORTHEAST OF GREENFIELD. MOVEMENT OF STORMS ACROSS EASTERN IOWA WAS SOUTHEAST AT 20 MILES AN HOUR...WHILE STORM MOVEMENT ELSEWHERE WAS EAST AT 15 MILES AN HOUR. PERSONS SHOULD LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIA TO STAY ABREAST OF THIS POTENTIALLY DANGEROUS WEATHER SITUATION. R A PRENTICE
Special weather statement, Jul 17, 5:49 PM CDT, 14 minutes before
IAZALL-172340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 547 PM CDT SAT JUL 17 1993 ...A SEVERE THUNDERSTORMS WATCH CONTINUES FOR PORTIONS OF SOUTHERN AND CENTRAL IOWA UNTIL 10 PM THIS SATURDAY EVENING... ...A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR THE SOUTHEAST HALF OF IOWA... AT 527 PM CDT...STRONG THUNDERSTORMS CONTINUED ACROSS PARTS OF IOWA. ONE STORM AREA WAS 100 MILES WIDE AND EXTENDED FROM 30 MILES SOUTHWEST OF CEDAR RAPIDS NEAR BROOKLYN TO THE NORTHEAST CORNER OF IOWA NEAR WAUKON. ANOTHER STORM AREA WAS BOUNDED FROM NEAR SIOUX CITY...TO 25 MILES EAST OF DES MOINES NEAR NEWTON...TO 10 MILES SOUTHEAST OF NEWTON...TO THE MISSOURI BORDER 10 MILES SOUTH OF CLARINDA. THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS AND FREQUENT DEADLY LIGHTNING WERE LOCATED FROM CEDAR RAPIDS TO 15 MILES SOUTHWEST OF CEDAR RAPIDS...JUST NORTHEAST OF VINTON...10 MILES NORTH OF WINTERSET AND 5 MILES NORTHEAST OF GREENFIELD. MOVEMENT OF STORMS ACROSS EASTERN IOWA WAS SOUTHEAST AT 20 MILES AN HOUR...WHILE STORM MOVEMENT ELSEWHERE WAS EAST AT 15 MILES AN HOUR. PERSONS SHOULD LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIA TO STAY ABR EAST OF THIS POTENTIALLY DANGEROUS WEATHER SITUATION. R A PRENTICE
Special weather statement, Jul 17, 5:57 PM CDT, 6 minutes before
IAZALL-172340- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 557 PM CDT SAT JUL 17 1993 ...PARTS OF WESTERN AND CENTRAL IOWA HAVE BEEN CLEARED FROM SEVERE THUNDERSTORM WATCH # 667. THE FOLLOWING COUNTIES HAVE BEEN CLEARED FROM THE SEVERE THUNDERSTORM WATCH THAT IS IN EFFECT UNTIL 10 PM CDT FOR SOUTH CENTRAL THROUGH PARTS OF CENTRAL INTO EASTERN IOWA: GUTHRIE...BOONE...DALLAS...GRUNDY... HAMILTON...HARDIN...STORY...CASS...FREMONT...AND MONTGOMERY. STRONG THUNDERSTORMS CONTINUE OVER MUCH OF IOWA...BUT ARE TO THE EAST OF THE CLEARED AREA. HOWEVER...RAIN WILL CONTINUE THROUGH THE NIGHT...SO A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THE NIGHT FOR THOSE COUNTIES. SULLIVAN
Special weather statement, Jul 17, 5:58 PM CDT, 5 minutes before
IAZALL-172340- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 557 PM CDT SAT JUL 17 1993 ...PARTS OF WESTERN AND CENTRAL IOWA HAVE BEEN CLEARED FROM SEVERE THUNDERSTORM WATCH # 667. THE FOLLOWING COUNTIES HAVE BEEN CLEARED FROM THE SEVERE THUNDERSTORM WATCH THAT IS IN EFFECT UNTIL 10 PM CDT FOR SOUTH CENTRAL THROUGH PARTS OF CENTRAL INTO EASTERN IOWA: GUTHRIE...BOONE...DALLAS...GRUNDY... HAMILTON...HARDIN...STORY...CASS...FREMONT...AND MONTGOMERY. STRONG THUNDERSTORMS CONTINUE OVER MUCH OF IOWA...BUT ARE TO THE EAST OF THE CLEARED AREA. HOWEVER...RAIN WILL CONTINUE THROUGH THE NIGHT...SO A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THE NIGHT FOR THOSE COUNTIES. SULLIVAN AND 5 MILES NORTHEAST OF GREENFIELD. MOVEMENT OF STORMS ACROSS EASTERN IOWA WAS SOUTHEAST AT 20 MILES AN HOUR...WHILE STORM MOVEMENT ELSEWHERE WAS EAST AT 15 MILES AN HOUR. PERSONS SHOULD LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIAT TO STAY ABREAST OF THIS POTENTIALLY DANGEROUS WEATHER SITUATION. R A PRENTICE
Special weather statement, Jul 17, 6:00 PM CDT, 3 minutes before
IAZALL-172340- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 557 PM CDT SAT JUL 17 1993 ...PARTS OF WESTERN AND CENTRAL IOWA HAVE BEEN CLEARED FROM SEVERE THUNDERSTORM WATCH # 667. THE FOLLOWING COUNTIES HAVE BEEN CLEARED FROM THE SEVERE THUNDERSTORM WATCH THAT IS IN EFFECT UNTIL 10 PM CDT FOR SOUTH CENTRAL THROUGH PARTS OF CENTRAL INTO EASTERN IOWA: GUTHRIE...BOONE...DALLAS...GRUNDY... HAMILTON...HARDIN...STORY...CASS...FREMONT...AND MONTGOMERY. STRONG THUNDERSTORMS CONTINUE OVER MUCH OF IOWA...BUT ARE TO THE EAST OF THE CLEARED AREA. HOWEVER...RAIN WILL CONTINUE THROUGH THE NIGHT...SO A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THE NIGHT FOR THOSE COUNTIES.Z SULLIVAN
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 5:44 AM CDT | Flash Flood Warning | DMX | Story | 3 hr |
| Jul 17, 6:35 AM CDT | Flash Flood Warning | DMX | Hardin, Marshall | 3 hr |
| Jul 17, 9:20 AM CDT | Flash Flood Warning | DMX | Polk | 3 hr |
| Jul 17, 2:00 PM CDT | Flash Flood Warning | DMX | Marshall | 4 hr |
| Jul 17, 3:42 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 33 min |
| Jul 17, 5:00 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 30 min |
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.