Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 69, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 17, 1993, 1:47 PM CDT for Wright County, Iowa. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Jun 17, 1993, 1:47 PM CDT (18:47 UTC)
- Expired
- Jun 17, 1993, 2:30 PM CDT
- In force
- 43 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Wright County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 6.8 hours before the alert went out and 236 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
- 13 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- -16 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Jun 17, 10:54 AM CDT, 2 hours 53 minutes before
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</html>Local storm report, Jun 17, 10:55 AM CDT, 2 hours 52 minutes before
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</html>Special weather statement, Jun 17, 1:40 PM CDT, 7 minutes before
IAZALL-171940- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 140 PM CDT THU JUN 17 1993 AT 130 PM CDT...ISOLATED VERY STRONG THUNDERSTORMS WERE OCCURRING OVER NORTH CENTRAL IOWA. THE STORMS WERE LOCATED 10 MILES NORTH OF FORT DODGE NEAR HUMBOLDT...AND 25 MILES NORTHEAST OF FORT DODGE. THESE STORMS WERE PRODUCING EXTREMELY HEAVY RAIN...HAIL...GUSTY WINDS AND FREQUENT LIGHTNING. THE STORMS WERE PART OF AN AREA OF SCATTERED SHOWERS AND ISOLATED STRONG THUNDERSTORMS OCCURRING OVER THE NORTHWEST THIRD OF IOWA. THE PRECIPITATION WAS NORTHWEST OF A LINE FROM COUNCIL BLUFFS...TO 15 MILES SOUTHEAST OF FORT DODGE NEAR WEBSTER CITY...TO MASON CITY. ISOLATED SHOWERS WERE ALSO IN SOUTHERN IOWA AROUND GREENFIELD...BEDFORD AND OSCEOLA. THE STORMS AND SHOWERS WERE MOVING NORTHEAST AT 25 MILES AN HOUR. KALLMAN
Special weather statement, Jun 17, 1:41 PM CDT, 6 minutes before
IAZALL-171940- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 140 PM CDT THU JUN 17 1993 AT 130 PM CDT...ISOLATED VERY STRONG THUNDERSTORMS WERE OCCURRING OVER NORTH CENTRAL IOWA. THE STORMS WERE LOCATED 10 MILES NORTH OF FORT DODGE NEAR HUMBOLDT...AND 25 MILES NORTHEAST OF FORT DODGE. THESE STORMS WERE PRODUCING EXTREMELY HEAVY RAIN...HAIL...GUSTY WINDS AND FREQUENT LIGHTNING. THE STORMS WERE PART OF AN AREA OF SCATTERED SHOWERS AND ISOLATED STRONG THUNDERSTORMS OCCURRING OVER THE NORTHWEST THIRD OF IOWA. THE PRECIPITATION WAS NORTHWEST OF A LINE FROM COUNCIL BLUFFS...TO 15 MILES SOUTHEAST OF FORT DODGE NEAR WEBSTER CITY...TO MASON CITY. ISOLATED SHOWERS WERE ALSO IN SOUTHERN IOWA AROUND GREENFIELD...BEDFORD AND OSCEOLA. THE STORMS AND SHOWERS WERE MOVING NORTHEAST AT 25 MILES AN HOUR. KALLMAN
Special weather statement, Jun 17, 1:45 PM CDT, 2 minutes before
IAZALL-180000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 145 PM CDT THU JUN 17 1993 ...A DANGEROUS RAIN EVENT IS EXPECTED ACROSS PARTS OF IOWA... OVER THE NEXT SEVERAL DAYS...RAINFALL AMOUNTS CLOSE TO FIVE INCHES ARE EXPECTED ACROSS PARTS OF THE STATE...WITH ISOLATED SPOTS RECEIVING EVEN MORE. A FLOOD WATCH IS POSTED FOR THE NORTHWEST TWO THIRDS OF THE STATE THROUGH TONIGHT. MANY RIVERS...ESPECIALLY ACROSS NORTHWEST AND NORTH CENTRAL IOWA...ARE NEAR OR ABOVE FLOOD STAGE. THIS HEAVY RAINFALL WILL FURTHER INCREASE THE FLOODING OR FLOODING THREAT. ALSO...THE STRONGEST STORMS WILL PRODUCE FLASH FLOODING OF SMALLER CREEKS AND STREAMS. INITIALLY...THROUGH TONIGHT...HEAVIEST RAINFALL IS EXPECTED ALONG AND ABOUT 40 MILES EITHER SIDE OF A LINE FROM NORTH OF OMAHA...TO FORT DODGE TO MASON CITY. SOME RIVER BASINS IN THIS AREA INCLUDE THE LITTLE SIOUX...RACCOON... ...BOYER...NISHNABOTNA...DES MOINES...CEDAR...IOWA...WASPSIPINICON AND SKUNK. THIS HEAVY RAIN IS CAUSED BY A NEARLY STATIONARY FRONT. HEADING INTO FRIDAY AND THEN THE WEEKEND...THIS FRONT WILL VERY SLOWLY DROP SOUTHEAST...SPREADING THE HEAVIEST RAIN INTO SOUTHEAST IOWA. IF YOU LIVE ALONG A RIVER...KEEP ALERT FOR RAPIDLY RISING WATER AND BE PREPARED TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. CAMPERS AND OTHER RECREATIONAL USERS SHOULD REMAIN AWAY FROM STREAM BEDS...CREEKS AND LOW DRAINAGE AREAS. JOHN FELDT METEOROLOGIST IN CHANGE
Special weather statement, Jun 17, 1:47 PM CDT, 0 minutes before
IAZALL-180000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 145 PM CDT THU JUN 17 1993 ...A DANGEROUS RAIN EVENT IS EXPECTED ACROSS PARTS OF IOWA... OVER THE NEXT SEVERAL DAYS...RAINFALL AMOUNTS CLOSE TO FIVE INCHES ARE EXPECTED ACROSS PARTS OF THE STATE...WITH ISOLATED SPOTS RECEIVING EVEN MORE. A FLOOD WATCH IS POSTED FOR THE NORTHWEST TWO THIRDS OF THE STATE THROUGH TONIGHT. MANY RIVERS...ESPECIALLY ACROSS NORTHWEST AND NORTH CENTRAL IOWA...ARE NEAR OR ABOVE FLOOD STAGE. THIS HEAVY RAINFALL WILL FURTHER INCREASE THE FLOODING OR FLOODING THREAT. ALSO...THE STRONGEST STORMS WILL PRODUCE FLASH FLOODING OF SMALLER CREEKS AND STREAMS. INITIALLY...THROUGH TONIGHT...HEAVIEST RAINFALL IS EXPECTED ALONG AND ABOUT 40 MILES EITHER SIDE OF A LINE FROM NORTH OF OMAHA...TO FORT DODGE TO MASON CITY. SOME RIVER BASINS IN THIS AREA INCLUDE THE LITTLE SIOUX...RACCOON... ...BOYER...NISHNABOTNA...DES MOINES...CEDAR...IOWA...WASPSIPINICON AND SKUNK. THIS HEAVY RAIN IS CAUSED BY A NEARLY STATIONARY FRONT. HEADING INTO FRIDAY AND THEN THE WEEKEND...THIS FRONT WILL VERY SLOWLY DROP SOUTHEAST...SPREADING THE HEAVIEST RAIN INTO SOUTHEAST IOWA. IF YOU LIVE ALONG A RIVER...KEEP ALERT FOR RAPIDLY RISING WATER AND BE PREPARED TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. CAMPERS AND OTHER RECREATIONAL USERS SHOULD REMAIN AWAY FROM STREAM BEDS...CREEKS AND LOW DRAINAGE AREAS. JOHN FELDT METEOROLOGIST IN CHANGE
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 1:16 PM CDT | Severe Thunderstorm Warning | DMX | Wright | 29 min |
| Jun 17, 1:42 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 48 min |
| Jun 17, 2:48 PM CDT | Tornado Warning | DMX | Chickasaw, Floyd, Howard, Mitchell | 42 min |
| Jun 17, 3:01 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 18 min |
| Jun 17, 3:01 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 44 min |
| Jun 17, 3:15 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw, Howard, Winneshiek | 45 min |
| Jun 17, 3:46 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Monroe | 29 min |
| Jun 17, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Greene, Webster | 25 min |
| Jun 17, 4:26 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 34 min |
| Jun 17, 4:28 PM CDT | Severe Thunderstorm Warning | DMX | Jefferson, Van Buren | 32 min |
| Jun 17, 4:32 PM CDT | Severe Thunderstorm Warning | DMX | Keokuk | 28 min |
| Jun 17, 4:44 PM CDT | Severe Thunderstorm Warning | DMX | Washington | 31 min |
| Jun 17, 5:01 PM CDT | Severe Thunderstorm Warning | DMX | Washington | 14 min |
| Jun 17, 5:47 PM CDT | Flash Flood Warning | DMX | Black Hawk | 2 hr |
Nearby
Severe Thunderstorm Warnings in Iowa, 1993Every severe thunderstorm 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.