Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 53, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 2, 1992, 10:44 AM CDT for Black Hawk County, Iowa. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Jul 2, 1992, 10:44 AM CDT (15:44 UTC)
- Expired
- Jul 2, 1992, 11:30 AM CDT
- In force
- 46 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Black Hawk County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 3.7 hours before the alert went out and 284 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
- 629 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 178 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, Jul 2, 9:24 AM CDT, 1 hour 20 minutes before
IAZ060-021540- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 920 AM CDT THU JUL 2 1992 A LINE OF STRONG THUNDERSTORMS WAS ENTERING THE WEST SIDE OF THE DES MOINES METROPOLITAN AREA. THUS FAR...NO REPORTS OF SEVERE WEATHER HAVE BEEN RECEIVED...HOWEVER STRONG WINDS...VERY HEAVY RAIN...AND SOME HAIL WILL OCCUR WITH THESE STORMS. RAINFALL AMOUNTS OF 1/2 TO 1 INCH ARE LIKELY WITH THESE STORMS IN A SHORT PERIOD OF TIME. THIS WILL CAUSE SOME STREET FLOODING IN AND AROUND THE CITY. THE STORMS WERE MOVING EAST AT NEARLY 50 MILES AN HOUR AND WILL PASS EAST OF THE CITY BY AROUND 1015 AM THIS MORNING.
Special weather statement, Jul 2, 9:38 AM CDT, 1 hour 6 minutes before
IAZ060-021540- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 937 AM CDT THU JUL 2 1992 ...TORNADO WATCH IN EFFECT UNTIL 2 PM FOR A LARGE PART OF IOWA... A LINE OF INTENSE THUNDERSTORMS CONTINUED TO ADVANCE EAST AT 45 MILES AN HOUR ACROSS CENTRAL IOWA. THE LEADING EDGE OF THE LINE EXTENDED FROM BOONE...DES MOINES TO THAYER. THIS IS 40 MILES NORTH NORTHWEST OF DES MOINES TO 40 MILES SOUTH SOUTHWEST OF DES MOINES. INTENSE RAINFALL WITH NEAR ZERO VISIBILITY...40 TO 55 MILE AN HOUR WINDS AND PEA-SIZED HAIL CAN BE EXPECTED. THE LINE SHOULD BE NEAR THE COMMUNITES OF STATE CENTER...NEWTON AND CHARITON BY 1035 AM. MYERS
Special weather statement, Jul 2, 9:45 AM CDT, 59 minutes before
IAZ006>011-016>019-026>29-038>040-021600 SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR NORTHEAST IOWA NATIONAL WEATHER SERVICE WATERLOO IA 930 AM CDT THU JUL 2 1992 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF NORTHEAST IOWA UNTIL 2PM CDT... AT 940 AM CDT A LINE OF THUNDERSTORMS WAS CROSSING THE I35 AREA. THESE THUNDERSTORMS WERE MOVING EASTERLY AT 45 MILES AN HOUR. ELSEWHERE IT WAS MOSTLY CLOUDY ACROSS NORTHEAST IOWA. THE LINE OF THUNDERSTORMS ALONG THE I35 CORRIDOR WILL BE MOVING INTO NORTH CENTRAL AND NORTHEAST IOWA BETWEEN 1030 AND 1130 AM CDT. THESE ARE POTENTIALLY DANGEROUS STORMS AND SHOULD BE WATCHED CLOSELY. THEY WILL EFFECT THE HAMTPON...GRUNDY CENTER..CONRAD...ALLISON AND THE PARKERSBURG AREA...THEN ON TO THE WATERLOO METRO AREA. RR
Special weather statement, Jul 2, 9:45 AM CDT, 59 minutes before
IAZALL-021540- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 844 AM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR A LARGE PART OF IOWA UNTIL 2 PM CDT... AT 928 AM CDT...INTENSE THUNDERSTORMS WERE OCCURRING IN CENTRAL IOWA. THE THUNDERSTORMS WERE LOCATED 25 TO 30 MILES NORTH OF DES MOINES. THESE STORMS WERE PRODUCING VERY HEAVY RAIN...GUSTY WINDS TO 60 MILES AN HOUR...AND SMALL HAIL. THE MENTIONED STORMS WERE PART OF AN AREA OF SCATTERED STRONG STORMS OVER THE WEST HALF OF IOWA...MAINLY WEST OF A LINE FROM ALGONA...TO JUST EAST OF DES MOINES...THEN TO LAMONI. THE STORMS WERE MOVING EAST 45 MILES AN HOUR. RICHTER
Special weather statement, Jul 2, 9:48 AM CDT, 56 minutes before
IAZALL-021540- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...COR FOR TIME NATIONAL WEATHER SERVICE DES MOINES IA 944 AM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR A LARGE PART OF IOWA UNTIL 2 PM CDT... AT 928 AM CDT...INTENSE THUNDERSTORMS WERE OCCURRING IN CENTRAL IOWA. THE THUNDERSTORMS WERE LOCATED 25 TO 30 MILES NORTH OF DES MOINES. THESE STORMS WERE PRODUCING VERY HEAVY RAIN...GUSTY WINDS TO 60 MILES AN HOUR...AND SMALL HAIL. THE MENTIONED STORMS WERE PART OF AN AREA OF SCATTERED STRONG STORMS OVER THE WEST HALF OF IOWA...MAINLY WEST OF A LINE FROM ALGONA...TO JUST EAST OF DES MOINES...THEN TO LAMONI. THE STORMS WERE MOVING EAST 45 MILES AN HOUR. RICHTER
Special weather statement, Jul 2, 10:42 AM CDT, 2 minutes before
IAZALL-021640- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1040 AM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR A LARGE PART OF IOWA UNTIL 2 PM CDT... AT 1031 AM CDT...INTENSE THUNDERSTORMS WERE OCCURRING OVER NORTH CENTRAL INTO SOUTH CENTRAL IOWA. THE LEADING EDGE OF THE PRECIPITATION EXTENDED FROM MASON CITY...TO 60 MILES EAST OF DES MOINES...NEAR MONTEZUMA...TO THE MISSOURI BORDER...SOUTHWEST OF OTTUMWA. THE STRONGEST STORMS WERE 30 TO 50 MILES SOUTHWEST OF WATERLOO...BETWEEN TAMA AND SOUTH OF ELDORA. DAMAGING THUNDERSTORM WINDS...HAIL...VERY HEAVY RAINS...FREQUENT DEADLY LIGHTNING IS LIKELY WITH THESE STORMS. THE STORMS WERE MOVING EAST 45 MILES AN HOUR. FILLBACH/BARLOW
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 55 min |
| Jul 2, 1:14 AM CDT | Severe Thunderstorm Warning | DMX | Audubon | 61 min |
| Jul 2, 2:16 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 44 min |
| Jul 2, 9:11 AM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 34 min |
| Jul 2, 9:50 AM CDT | Tornado Warning | DMX | Marshall | 25 min |
| Jul 2, 9:50 AM CDT | Tornado Warning | DMX | Story | 20 min |
| Jul 2, 9:56 AM CDT | Severe Thunderstorm Warning | DMX | Jasper | 34 min |
| Jul 2, 10:09 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 51 min |
| Jul 2, 10:21 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 24 min |
| Jul 2, 10:43 AM CDT | Severe Thunderstorm Warning | DMX | Benton | 42 min |
| Jul 2, 10:44 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 23 min |
| Jul 2, 10:55 AM CDT | Severe Thunderstorm Warning | DMX | Keokuk | 43 min |
| Jul 2, 11:08 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 37 min |
| Jul 2, 11:30 AM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 30 min |
| Jul 2, 2:58 PM CDT | Tornado Warning | DMX | Mahaska | 32 min |
| Jul 2, 3:12 PM CDT | Tornado Warning | DMX | Keokuk, Wapello | 21 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992
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.