Special Weather Statement, NWS Des Moines, IA

Area Forecast Discussion
National Weather Service Des Moines IA
340 PM CDT Sat Mar 28 2020

.SHORT TERM.../Tonight through Sunday Night/
Issued at 330 PM CDT Sat Mar 28 2020

Very fluid situation this afternoon and evening with fast moving
dryline/accompanying severe storms. Still a potential for tornadoes
and hail with any storms that can become rooted in the boundary
layer. PDS Tornado Watch#69 in effect until 9 pm. Other main
issues are strong winds mixing in the dry punch over southwest
Iowa. As the dryslot continues to move northeast with the
deepening low, expecting that wind gusts will increase to 45 to
50 mph for several hours over the remainder of the south and
portions of central Iowa as well. Rather than inundate the area
with additional products/headlines for that, have opted to SPS the
evolving areas as needed and concentrate on the main wind
advisory for later tonight into tomorrow in the back side of the
strong spring storm. Lows tonight will drop into the mid 30s to
lower 40s; highs Sunday reaching the upper 40s north to the upper
50s south and lows Sunday night cooling to the upper 20s north to
the mid 30s south as skies clear. Winds are expected to relax
after 18z Sunday over most of the region, but have extended the
wind advisory to then to cover the periods of strongest northwest
winds.

.LONG TERM.../Monday through Saturday/
Issued at 330 PM CDT Sat Mar 28 2020

No real changes to extended as focus continues on short term and
rapidly evolving situation. Little weather of consequence is
expected through Wednesday, though a stronger system with mainly
rain and some instability will track near Iowa Thursday. Another
rain producing system will be nearing Iowa again Saturday.

&&

.AVIATION.../For the 18Z TAFS through 18Z Sunday afternoon/
Issued at 1228 PM CDT Sat Mar 28 2020

Strong spring storm deepening in northeast KS now and will lift
into Central IA this afternoon pulling warm front/occlusion and
VFR conditions across the south. MVFR/IFR cigs slowly eroding
remainder of area through 00z. Potential for a few higher end TSRA
with winds/hail/tors all possible. Confidence on any one location
low, but KDSM/KALO/KOTM more likely to see than others. Strong NW
flow follows system with gusts 35kt or higher.  /rev

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory from 1 AM to 1 PM CDT Sunday for IAZ006-007-016-
017-025>028-036>039-048>050-060>062-073>075-084>086-095>097.

Wind Advisory from 10 PM this evening to 1 PM CDT Sunday for
IAZ004-005-015-023-024-033>035-044>047-057>059-070>072-081>083-
092>094.

&&

SHORT TERM...REV
LONG TERM...REV
AVIATION...REV

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
232 PM CDT SAT MAR 28 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0210 PM     TORNADO          7 SSE BRIDGEWATER       41.16N 94.63W
03/28/2020                   ADAMS              IA   EMERGENCY MNGR

            REPORT OF DAMAGE FROM ADAMS COUNTY EM NEAR
            THE ADAIR COUNTY BORDER. EXTENT OF DAMAGE
            UNKNOWN AT THIS TIME.

&&

Special Weather Statement
National Weather Service Des Moines IA
310 PM CDT Sat Mar 28 2020

IAZ057>059-070>072-081>083-092>094-282300-
Audubon-Guthrie-Dallas-Cass-Adair-Madison-Adams-Union-Clarke-
Taylor-Ringgold-Decatur-
Including the cities of Audubon, Exira, Guthrie Center, Panora,
Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield, Stuart,
Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Osceola,
Bedford, Lenox, New Market, Mount Ayr, Lamoni, and Leon
310 PM CDT Sat Mar 28 2020

...Period of Strong South Southwest Winds this Afternoon and
Early Evening...

Strong winds are following the line of thunderstorms moving
through Central and Southern Iowa today. Winds will briefly gust
to 45 to 50 mph from now until 5 to 6 pm this evening. The area of
strong winds is expected to keep moving east northeast this
evening and additional statements will be issued as needed.

Persons traveling in high profile vehicles will have difficulty
driving and holding the lane. This will be especially true on east
west roads, but is also likely on north south roadways.

REV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
336 PM CDT SAT MAR 28 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0210 PM     TORNADO          5 SE BRIDGEWATER        41.20N 94.60W
03/28/2020                   ADAIR              IA   EMERGENCY MNGR

            TWO MACHINE SHEDS DESTROYED AT FARMSTEAD. NO
            INJURIES.

&&

Special Weather Statement
National Weather Service Des Moines IA
349 PM CDT Sat Mar 28 2020

IAZ025-026-036-047-282130-
Hamilton IA-Wright IA-Boone IA-Franklin IA-
349 PM CDT Sat Mar 28 2020

...Strong Storm May Produce Penny Size Hail and Winds Over 40 mph...

At 348 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles north of Boone, moving north at 55 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Webster City, Clarion, Jewell Junction, Elm Lake, Big Wall Lake,
Stratford, Dows, Stanhope, Williams, Blairsburg, Kamrar, Woolstock,
Rowan, Popejoy, Galt, Clarion Municipal Airport and Webster City
Municipal Airport.

A Tornado Watch remains in effect until 900 PM CDT for central Iowa.

LAT...LON 4271 9333 4256 9346 4256 9350 4251 9350
      4210 9384 4214 9399 4221 9396 4221 9393
      4230 9393 4280 9375
TIME...MOT...LOC 2048Z 198DEG 51KT 4218 9386

Kotenberg