Tornado Watch 47

Issued

Feb 28, 2017, 9:04 PM CST (03:04 UTC)

Expired

Mar 1, 2017, 4:00 AM CST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Springfield radar (KSGF), 74 km from the middle of the area, began a volume at 03:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

60%

One or more EF2 to EF5 tornadoes

50%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 221Feb 28, 5:28 PM CST
• Mesoscale Discussion 223Feb 28, 6:05 PM CST
• Mesoscale Discussion 224Feb 28, 7:46 PM CST
• Mesoscale Discussion 225Feb 28, 8:06 PM CST
• Mesoscale Discussion 227Feb 28, 10:01 PM CST
• Mesoscale Discussion 230Feb 28, 10:46 PM CST
• Mesoscale Discussion 232Mar 1, 12:16 AM CST
• Mesoscale Discussion 236Mar 1, 2:09 AM CST

487 
WWUS20 KWNS 010302
SEL7  
SPC WW 010302
ARZ000-ILZ000-KSZ000-MOZ000-OKZ000-011000-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 47
NWS Storm Prediction Center Norman OK
905 PM CST Tue Feb 28 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northwestern Arkansas
  Western Illinois
  Southeastern Kansas
  Southern and eastern Missouri
  Northeastern Oklahoma

* Effective this Tuesday night and Wednesday morning from 905 PM
  until 400 AM CST.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Scattered large hail and isolated very large hail events to 3
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Thunderstorms are expected to develop along and ahead of a
cold front and move into a favorable parameter space for all severe
hazards, including the risk for strong tornadoes.

The tornado watch area is approximately along and 80 statute miles
north and south of a line from 35 miles north of Tulsa OK to 35
miles east northeast of Alton IL. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 41...WW 42...WW 43...WW
44...WW 45...WW 46...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 25035.

...Edwards

Tornado Watches in Missouri, 2017Tornado Watches in Illinois, 2017Tornado Watches in Oklahoma, 2017Every tornado watch in 2017

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; radar from the NEXRAD Level II archive.