Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 16, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Mar 13, 1990, 4:18 PM CST for Chickasaw County, Iowa. It was in force for 47 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 13, 1990, 4:18 PM CST (22:18 UTC)
- Expired
- Mar 13, 1990, 5:05 PM CST
- In force
- 47 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Chickasaw County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 13, 4:40 PM CST | Hail 0.75 | Chickasaw, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 10.3 hours before the alert went out and 224 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
- 1580 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 343 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KALO 132218
SVRALO
IAC037-017-132315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WATERLOO IA
418 PM CST TUE MAR 13 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 515 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE NORTHEAST PART OF IOWA
CHICKASAW...NORTHERN BREMER
AT 413 PM CST WATERLOO RADAR INDICATED A SEVERE THUNDERSTORM 15
MILES NORTH OF WATERLOO JUST NORTH OF WAVERLY IOWA. THIS STORM
IS MOVING NORTH AT 40 MPH AND IS CAPABLE OF PRODUCING 3/4 IN HAIL
AND WINDS IN EXCESS OF 60 MPH. PEOPLE SHOULD TAKE COVER.
YOU SHOULD MOVE INSIDE A REINFORCED BUILDING. STAY AWAY FROM
WINDOW_S. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL
AFTER THE STORM PASSES.
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.
THIS IS A VERY DANGEROUS STORM TAKE COVER IMMEDIATELY.
ROBBWhat 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, Mar 13, 2:19 PM CST, 1 hour 59 minutes before
IAZALL-132100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 215 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR A LARGE PART OF NORTHERN AND WESTERN IOWA UNTIL 6 PM... ...FLASH FLOOD WATCH FOR THE SOUTH HALF OF IOWA TODAY... AT 205 PM...INTENSE THUNDERSTORMS WERE LOCATED OVER WEST CENTRAL AND EAST CENTRAL IOWA. THESE STORMS WERE LOCATED 70 MILES WEST NORTHWEST OF DES MOINES...NEAR CARROLL AND NEAR DINSDALE IN NORTHERN TAMA COUNTY ABOUT 25 MILES SOUTHWEST OF WATERLOO. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...EXTREMELY HEAVY RAIN AND WIND GUSTS OF 30 TO 40 MILES AN HOUR. THESE STORMS WERE PART OF A LARGE AREA OF SCATTERED SHOWERS AND WIDELY SCATTERED THUNDERSTORMS LOCATED OVER ALL BUT THE FAR NORTHWEST...FAR NORTHEAST AND FAR SOUTHEAST COUNTIES OF IOWA. THE SHOWERS AND STORMS WERE MOVING NORTH NORTHEAST AT 45 MILES AN HOUR. CAB/KS
Special weather statement, Mar 13, 2:51 PM CST, 1 hour 27 minutes before
IAZALL-132130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 247 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL 6PM...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 8PM... ...FLASH FLOOD WATCH FOR THE SOUTH HALF OF IOWA TODAY... AT 235 PM...INTENSE THUNDERSTORMS WERE LOCATED OVER NORTHWEST AND NORTHEAST IOWA. OVER NORTHWEST IOWA AN INTENSE STORM WAS LOCATED ABOUT 30 MILES SOUTHWEST OF FORT DODGE...NEAR LAKE CITY. OVER NORTHEAST IOWA AN INTENSE STORM WAS LOCATED ABOUT 12 MILES SOUTH OF WATERLOO. LARGE HAIL...EXTREMELY HEAVY RAIN AND WINDS OF 30 TO 40 MILES AN HOUR IS LIKELY WITH THESE STORMS. THE STORM OVER NORTHWEST IOWA WAS PART OF AN AREA OF SCATTERED SHOWERS AND WIDELY SCATTERED THUNDERSTORMS THAT EXTENDED FROM 25 MILES NORTHEAST OF OMAHA/COUNCIL BLUFFS NORTHEAST TO MASON CITY...THIS AREA WAS 30 TO 50 MILES WIDE. THE STORM OVER NORTHEAST IOWA WAS PART OF A LARGE AREA OF SCATTERED SHOWERS AND STORMS STORMS THAT EXTENDED FROM 55 MILES SOUTHEAST OF DES MOINES NEAR CENTERVILLE NORTH THROUGH EAST CENTRAL INTO NORTHEAST IOWA...JUST NORTH OF WATERLOO. THE SHOWERS AND STORMS WERE MOVING NORTH NORTHEAST AT 45 MILES AN HOUR. CAB/KS
Special weather statement, Mar 13, 3:27 PM CST, 51 minutes before
IAZALL-132130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 330 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL 6PM...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 8PM... ...FLASH FLOOD WATCH FOR THE SOUTH HALF OF IOWA TODAY... AT 310 PM...INTENSE THUNDERSTORMS WERE LOCATED IN NORTHWEST AND NORTH CENTRAL IOWA...IN THE FORT DODGE...HUMBOLDT AND LUVERNE AREA OR 40 TO 50 MILES SOUTHWEST OF MASON CITY. ALSO IN NORTHEAST IOWA IN THE MANCHESTER AREA OR 40 MILES WEST OF DUBUQUE. ANOTHER INTENSE THUNDERSTORMS WAS IN SOUTHEAST IOWA IN SOUTHERN DAVIS COUNTY...10 MILES SOUTHWEST OF BLOOMFIELD. LARGE HAIL...EXTREMELY HEAVY RAIN AND WINDS OF 30 TO 40 MILES AN HOUR CAN BE EXPECTED WITH THESE STORMS. NO SEVERE WEATHER HAVE BEEN REPORTED WITH STORMS AS OF 315 PM CST. THE INTENSE THUNDERSTORMS ARE PART OF A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER THE NORTHEAST HALF OF IOWA. THE SHOWERS AND STORMS WERE MOVING NORTH NORTHEAST AT 45 MILES AN HOUR. MG/KS
Special weather statement, Mar 13, 3:36 PM CST, 42 minutes before
IAZ002-132200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 335 PM CST TUE MAR 13 1990 ...STRONG THUNDERSTORM OCCURRING OVER KOSSUTH COUNTY... AT 332 PM...WEATHER RADAR IN DES MOINES INDICATED A STRONG THUNDERSTORM OVER SOUTHERN KOSSUTH COUNTY NEAR ALGONA...OR ABOUT 50 MILES WEST OF MASON CITY. THIS STORM WILL PRODUCE VERY HEAVY RAINS IN A SHORT PERIOD OF TIME...ALONG WITH SOME SMALL HAIL AND WINDS OF 30 TO 40 MILES AN HOUR...AS IT MOVES NORTHEAST AT 45 MILES AN HOUR...INTO THE NORTHERN PART OF KOSSUTH COUNTY. REMEMBER...A TORNADO WATCH REMAINS IN EFFECT FOR NORTH CENTRAL IOWA UNTIL 6 PM. KS/TRUETT
Special weather statement, Mar 13, 3:47 PM CST, 31 minutes before
IA007-132215 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 345 PM CST TUE MAR 13 1990 ...STRONG THUNDERSTORM MOVING INTO SOUTHERN BLACK HAWK COUNTY... AT 240 PM CST WEATHER RADAR SHOWED A STRONG THUNDERSTORM AT HUDSON IOWA... 15 MILES SOUTH OF THE CITY OF WATERLOO. THIS THUNDERSTORM WAS MOVING NORTH AT 40 MILES AN HOUR AND WILL PRODUCE VERY HEAVY RAIN AND POSSIBLY SMALL HAIL AS IT PASSES THROUGH BLACK HAWK COUNTY. THE THU!NDERSTORM SHOULD BE EXIT BLACK HAWK COUNTY BY 415 PM THIS AFTERNOON.
Special weather statement, Mar 13, 3:57 PM CST, 21 minutes before
IAZALL-132130- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 355 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL 6PM...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 8PM... ...FLASH FLOOD WATCH FOR THE SOUTH HALF OF IOWA TODAY... AT 333 PM...AN VERY INTENSE THUNDERSTORM WAS JUST EAST OF BLOOMFIELD IN DAVIS COUNTY OF SOUTHEAST IOWA. ANOTHER VERY INTENSE THUNDERSTORM WAS NEAR ALGONA IN SOUTHERN KOSSUTH COUNTY OF NORTH CENTRAL IOWA. OTHER STRONG THUNDERSTORMS WERE 30 TO 40 MILES WEST OF CEDAR RAPIDS OF EAST CENTRAL IOWA...AND STRONG THUNDERSTORMS WERE 20 MILES SOUTHWEST AND ALSO 35 MILES NORTH OF WATERLOO OF NORTHEAST IOWA. THESE STORMS MAY PRODUCE LARGE HAIL...STRONG GUSTY WINDS AND VERY HEAVY RAINS. THESE INTENSE AND STRONG THUNDERSTORMS WERE PART OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS OVER THE NORTHEAST HALF OF THE STATE ...FROM THE NOTHWEST CORNER OF IOWA TO THAE IOWA/MISSOURI BORDER SOUTH OF OTTUMWA. THE SHOWERS AND STORMS WERE MOVING NORTH NORTHEAST AT 45 MILES AN HOUR. MG/KS
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 8:55 PM CST | Severe Thunderstorm Warning | DMX | Madison, Polk | 50 min |
| Mar 12, 11:17 PM CST | Severe Thunderstorm Warning | DMX | Appanoose, Monroe | 33 min |
| Mar 12, 11:28 PM CST | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 20 min |
| Mar 12, 11:53 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas | 52 min |
| Mar 13, 12:38 PM CST | Severe Thunderstorm Warning | DMX | Wright | 17 min |
| Mar 13, 1:33 PM CST | Severe Thunderstorm Warning | DMX | Poweshiek | 27 min |
| Mar 13, 1:51 PM CST | Severe Thunderstorm Warning | DMX | Tama | 39 min |
| Mar 13, 1:55 PM CST | Severe Thunderstorm Warning | DMX | Carroll | 35 min |
| Mar 13, 2:28 PM CST | Severe Thunderstorm Warning | DMX | Calhoun | 42 min |
| Mar 13, 2:31 PM CST | Severe Thunderstorm Warning | DMX | Black Hawk | 49 min |
| Mar 13, 3:24 PM CST | Severe Thunderstorm Warning | DMX | Davis | 36 min |
| Mar 13, 3:42 PM CST | Tornado Warning | DMX | Davis | 18 min |
| Mar 13, 3:57 PM CST | Tornado Warning | DMX | Jefferson, Van Buren | 33 min |
| Mar 13, 4:18 PM CST | Severe Thunderstorm Warning | DMX | Bremer | 22 min |
| Mar 13, 5:11 PM CST | Severe Thunderstorm Warning | DMX | Washington | 49 min |
| Mar 13, 5:16 PM CST | Severe Thunderstorm Warning | DMX | Johnson | 29 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1990Every severe thunderstorm warning in 1990
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.