WPC FORECAST OPERATIONS BRANCH
MONTHLY RECORD THREAT SCORES
24-HOUR QPF

(NUMBERS IN BOLD ARE ALL TIME RECORDS FOR THAT CATEGORY)

Statistics updated May 23, 2022




Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Day 1 0.50 0.606 0.628 0.579 0.552 0.487 0.391 0.353 0.338 0.459 0.565 0.596 0.655 0.474
2019 2016 2021 2019 2019 2021 2021 2017 2018 2019 2015 2020 2019
1.00 0.542 0.557 0.525 0.467 0.387 0.290 0.251 0.294 0.489 0.531 0.550 0.512 0.366
2013 2020 2012 2018 2019 2021 2021 2017 2008 2015 2015 2014 2015,18
2.00 0.446 0.437 0.433 0.430 0.276 0.201 0.208 0.434 0.491 0.457 0.478 0.402 0.295
2009 2020 2018 2020 2010 2001,17 2005 2011 2008 2015 2012 2018 2012
3.00 0.352 0.464 0.390 0.299 0.200 0.205 0.227 0.566 0.550 0.525 0.442 0.405 0.294
2009 2015 2008 2020 2019 2001 2008 2011 2017 2010 2012 2015 2017
Day 2 0.50 0.575 0.568 0.508 0.482 0.407 0.309 0.293 0.289 0.420 0.505 0.530 0.594 0.398
2022 2022 2021,22 2018 2017 2021 2021 2008 2017 2019 2011 2020 2019
1.00 0.467 0.488 0.446 0.438 0.275 0.208 0.183 0.241 0.408 0.468 0.497 0.451 0.303
2022 2020 2012 2018 2010 2021 2021 2008 2008 2015 2015 2013,14 2018
2.00 0.328 0.356 0.361 0.323 0.204 0.122 0.184 0.378 0.376 0.355 0.397 0.356 0.226
2009,17 2015 2018 2018 2010 2020 2005 2011 2008 2015 2012 2017 2012
Day 3 0.50 0.498 0.544 0.461 0.446 0.376 0.262 0.239 0.255 0.371 0.456 0.489 0.547 0.354
2021 2022 2021 2018 2017 2017 2021 2018 2017 2019 2015 2018 2019
1.00 0.418 0.435 0.378 0.397 0.248 0.142 0.156 0.202 0.347 0.397 0.443 0.420 0.257
2009 2020 2012 2018 2019 2013 2021 2008 2008 2015 2015 2010 2015
2.00 0.380 0.354 0.298 0.343 0.153 0.142 0.149 0.286 0.332 0.264 0.377 0.378 0.180
2020 2015 2018 2020 2010 2020 2005 2011 2017 2015 2012 2017 2017


Alltime Records

Day 1 0.50 0.655 (Dec 2020)
1.00 0.557 (Feb 2020)
2.00 0.491 (Sep 2008)
3.00 0.566 (Aug 2011)
Day 2 0.50 0.594 (Dec 2020)
1.00 0.497 (Nov 2015)
2.00 0.397 (Nov 2012)
Day 3 0.50 0.547 (Dec 2018)
1.00 0.443 (Nov 2015)
2.00 0.380 (Jan 2020)