Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 48, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 30, 1994, 7:58 PM CDT for Mitchell County, Iowa. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- May 30, 1994, 7:58 PM CDT (00:58 UTC)
- Expired
- May 30, 1994, 8:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Mitchell County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 1.0 hours before the alert went out and 178 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
- 2185 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -182 m²/s²
- 0-3 km storm-relative helicity
- -23 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
Special weather statement, May 30, 6:35 PM CDT, 1 hour 23 minutes before
IAZ006>011-016>019-026>029-038>040-310040- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 635 PM CDT MON MAY 30 1994 ...A LINE OF STRONG THUNDERSTORMS WAS MOVING INTO NORTHEAST IOWA... AT 630 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WATERLOO INDICATED A LINE OF STRONG THUNDERSTORMS IN WINNEBAGO COUNTY...EXTENDING FROM JUST SOUTHEAST OF BUFFALO CENTER...THROUGH LAKE MILLS...AND STRETCHING INTO MINNESOTA. PRELIMINARY MOVEMENT OF THESE STORMS WAS EAST AT 30 MILES AN HOUR. THESE STORMS SHOULD AFFECT THE TOWNS OF FOREST CITY...CLEAR LAKE... AND NORTHWOOD THROUGH 730 PM. SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN. AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. DEWALD
Special weather statement, May 30, 6:36 PM CDT, 1 hour 22 minutes before
IAZ006>011-016>019-026>029-038>040-310040- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 635 PM CDT MON MAY 30 1994 ...A LINE OF STRONG THUNDERSTORMS WAS MOVING INTO NORTHEAST IOWA... AT 630 PM CDT...NATIONAL WEATHER SERVICE RADAR IN WATERLOO INDICATED A LINE OF STRONG THUNDERSTORMS IN WINNEBAGO COUNTY...EXTENDING FROM JUST SOUTHEAST OF BUFFALO CENTER...THROUGH LAKE MILLS...AND STRETCHING INTO MINNESOTA. PRELIMINARY MOVEMENT OF THESE STORMS WAS EAST AT 30 MILES AN HOUR. THESE STORMS SHOULD AFFECT THE TOWNS OF FOREST CITY...CLEAR LAKE... AND NORTHWOOD THROUGH 730 PM. SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN. AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. DfEWALD
Special weather statement, May 30, 7:11 PM CDT, 47 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-310115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 711 PM CDT MON MAY 30 1994 ...INTENSE THUNDERSTORMS DEVELOPING RAPIDLY IN NORTH CENTRAL IOWA... AT 710 PM RADAR INDICATED INTENSE THUNDERSTORMS DEVELOPING 15 MILES NORTH OF MASON CITY. THESE STORMS WERE MOVING RAPIDLY EAST AT 40 MPH AND WILL AFFECT NORTHWOOD...CARPENTER AND MANLY THROUGH 740 PM. THESE STORMS WILL PRODUCE MARBLE SIZE HAIL AND GUSTY WINDS OF 40 TO 50 MPH ALONG WITH BRIEF HEAVY RAINS AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD SEEK SAFE SHELTER AS THESE STORMS APPROACH. NO REPORTS OF SEVERE WEATHER HAVE BEEN RECEIVED. COLLAR
Special weather statement, May 30, 7:12 PM CDT, 46 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-310115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 711 PM CDT MON MAY 30 1994 ...INTENSE THUNDERSTORMS DEVELOPING RAPIDLY IN NORTH CENTRAL IOWA... AT 710 PM RADAR INDICATED INTENSE THUNDERSTORMS DEVELOPING 15 MILES NORTH OF MASON CITY. THESE STORMS WERE MOVING RAPIDLY EAST AT 40 MPH AND WILL AFFECT NORTHWOOD...CARPENTER AND MANLY THROUGH 740 PM. THESE STORMS WILL PRODUCE MARBLE SIZE HAIL AND GUSTY WINDS OF 40 TO 50 MPH ALONG WITH BRIEF HEAVY RAINS AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD SEEK SAFE SHELTER AS THESE STORMS APPROACH. NO REPORTS OF SEVERE WEATHER HAVE BEEN RECEIVED. COLLAR
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:14 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 31 min |
| May 30, 9:00 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Floyd | 30 min |
| May 30, 9:32 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 58 min |
| May 30, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 57 min |
| May 30, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 25 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.