Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 204, NWS Tucson, AZ

October 5, 2021Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Oct 5, 2021, 2:48 PM MST for Cochise County, Arizona. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 5, 2021, 2:48 PM MST (21:48 UTC)
Expired: Oct 5, 2021, 3:30 PM MST
In force: 42 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 92 km from the middle of the area, began a volume at 21:52 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.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.8 hours before the alert went out and 113 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 4 J/kg
Mixed-layer CIN: -376 J/kg
Mixed-layer LCL: 2029 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

215 
WUUS55 KTWC 052148
SVRTWC
AZC003-052230-
/O.NEW.KTWC.SV.W.0204.211005T2148Z-211005T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
248 PM MST Tue Oct 5 2021

The National Weather Service in Tucson has issued a

* Severe Thunderstorm Warning for...
  North central Cochise County in southeastern Arizona...

* Until 330 PM MST.

* At 248 PM MST, a severe thunderstorm was located 9 miles southeast
  of Willcox, moving northeast at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Willcox, Bowie, Pearce-Sunsites and Kansas Settlement. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3195 10974 3203 10998 3242 10968 3241 10937
TIME...MOT...LOC 2148Z 215DEG 19KT 3215 10972 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GL

1 follow-up statement

778 
WWUS55 KTWC 052204
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
304 PM MST Tue Oct 5 2021

AZC003-052230-
/O.CON.KTWC.SV.W.0204.000000T0000Z-211005T2230Z/
Cochise-
304 PM MST Tue Oct 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM MST
FOR NORTH CENTRAL COCHISE COUNTY...

At 304 PM MST, a severe thunderstorm was located 10 miles east of
Willcox, moving northeast at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Willcox, Bowie, Pearce-Sunsites and Kansas Settlement. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3195 10974 3203 10998 3242 10968 3241 10937
TIME...MOT...LOC 2204Z 215DEG 19KT 3222 10966 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GL

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 5, 12:41 PM MST	Special Weather Statement	TWC	Cochise	49 min
Oct 5, 12:54 PM MST	Severe Thunderstorm Warning	TWC	Cochise	36 min
Oct 5, 1:27 PM MST	Severe Thunderstorm Warning	TWC	Cochise	48 min
Oct 5, 1:58 PM MST	Severe Thunderstorm Warning Considerable damage threat	TWC	Cochise, Graham	47 min
Oct 5, 3:23 PM MST	Severe Thunderstorm Warning Considerable damage threat	TWC	Cochise	52 min
Oct 5, 3:32 PM MST	Special Weather Statement	TWC	Graham	58 min
Oct 5, 3:38 PM MST	Severe Thunderstorm Warning	TWC	Pima	52 min
Oct 5, 4:18 PM MST	Severe Thunderstorm Warning	TWC	Graham	30 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2021 Every severe thunderstorm warning in 2021

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; radar from the NEXRAD Level II archive.