Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 13, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 14, 1993, 4:11 PM CDT for Audubon County, Carroll County, Crawford County, Iowa. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- May 14, 1993, 4:11 PM CDT (21:11 UTC)
- Expired
- May 14, 1993, 5:15 PM CDT
- In force
- 64 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Audubon County, IA, Carroll County, IA, Crawford County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 9.2 hours before the alert went out and 128 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
- 2348 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KDSM 142111 SVRDMX IAC009-027-047-142215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 411 PM CDT FRI MAY 14 1993 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION(S)S... IN WEST CENTRAL IOWA ...NORTHERN AUDUBON COUNTY...SOUTHWESTERN CARROLL COUNTY ...SOUTHEASTERN CRAWFORD COUNTY AT 405 PM CDT...DES MOINES RADAR DETECTED A SEVERE THUNDERSTORM NEAR THE THE TOWN OF MANNING...OR 60 MILES NORTHEAST OF COUNCIL BLUFFS. THE THUNDERSTORM IS MOVING TO THE SOUTHEAST AT 20 MPH. TOWNS IN THE PATH OF THIS STORM INCLUDE TEMPLETON AND AUDUBON. THE STORM SHOULD MOVE THROUGH THESE AREAS BETWEEN 440 AND 5 PM CDT. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SMITH
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
Special weather statement, May 14, 4:03 PM CDT, 8 minutes before
IAZ026-027-028-029-038-039-040-142200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 403 PM CDT FRI MAY 14 1993 ...SCATTERED STRONG THUNDERSTORMS ARE DEVELOPING ALONG THE HIGHWAY 20 CORRIDOR... AT 400 PM CDT...SCATTERED STRONG THUNDERSTORMS HAVE RAPIDLY DEVELOPED 20 MILES NORTH AND SOUTH OF HIGHWAY 20. THESE STORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR AND ARE CAPABLE OF PRODUCING STRONG WINDS AND POSSIBLY SOME SMALL HAIL. THESE STORMS WILL MOVE THROUGH THE LA PORTE CITY AND QUASQUETON AREAS THROUGH 5 PM CDT. IN ADDITION...SHOWERS AND ISOLATED STRONG THUNDERSTORMS WERE ALSO MOVING INTO EAST CENTRAL IOWA NEAR DUBUQUE. SPEECE
Special weather statement, May 14, 4:03 PM CDT, 8 minutes before
IAZ026-027-028-029-038-039-040-142200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 403 PM CDT FRI MAY 14 1993 ...SCATTERED STRONG THUNDERSTORMS ARE DEVELOPING ALONG THE HIGHWAY 20 CORRIDOR... AT 400 PM CDT...SCATTERED STRONG THUNDERSTORMS HAVE RAPIDLY DEVELOPED 20 MILES NORTH AND SOUTH OF HIGHWAY 20. THESE STORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR AND ARE CAPABLE OF PRODUCING STRONG WINDS AND POSSIBLY SOME SMALL HAIL. THESE STORMS WILL MOVE THROUGH THE LA PORTE CITY AND QUASQUETON AREAS THROUGH 5 PM CDT. IN ADDITION...SHOWERS AND ISOLATED STRONG THUNDERSTORMS WERE ALSO MOVING INTO EAST CENTRAL IOWA NEAR DUBUQUE. SPEECE WWUS30KOKC +
Special weather statement, May 14, 4:09 PM CDT, 2 minutes before
IAZALL-142200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 400 PM CDT WED MAY 12 1993 ...THUNDERSTORMS ARE FORMING ACROSS CENTRAL IOWA... AT 4 PM...A LINE OF SCATTERED THUNDERSTORMS HAD FORMED ACROSS CENTRAL IOWA. THESE STORMS EXTENDED FROM 20 MILES NORTH OF OMAHA TO 40 MILES NORTH OF DES MOINES NEAR STORY CITY...TO JUST SOUTH OF WATERLOO. STRONGEST STORMS WERE LOCATED IN BOONE COUNTY NEAR BOONE...OR 40 MILES NORTH OF DES MOINES. ANOTHER STRONG STORM WAS LOCATED IN AUDUBON COUNTY JUST NORTH OF THE CITY OF AUDUBON. STRONGEST STORMS ARE PRODUCING BRIEF HEAVY DOWNPOURS...FREQUENT LIGHTNING...AND PERHAPS SOME SMALL HAIL. THESE STORMS ARE DRIFING SOUTH AT 25 MILES AN HOUR. THEY WILL CONTINUE ACROSS PARTS OF CENTRAL IOWA DURING THE EVENING HOURS...NEARING THE METRO DES MOINES AREA BETWEEN 5 AND 6 PM. IF YOU ARE IN THIS AREA...KEEP INFORMED TO THIS CHANGING WEATHER SITUATION AND LISTEN FOR POSSIBLE WARNINGS. FELDT
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.